As a power conversion interface between the power grid and energy storage batteries, it has highly efficient bidirectional conversion capabilities. By precisely controlling the charging and discharging of the energy storage battery system, it can flexibly dispatch electrical energy among the battery, load, and power grid, ensuring the stable operation of the energy storage system under various working conditions.

It is applicable to AC power systems of 110kV and below with relatively stable loads. It adopts comprehensive voltage and reactive power control. By adjusting the on-load tap changer of the main transformer and automatically switching capacitor banks, it realizes comprehensive voltage and reactive power control of the compensation bus.

The fixed DC de-icing device converts AC power to adjustable DC voltage through a thyristor rectifier valve. The voltage is then passed through a smoothing reactor and a DC de-icing switch to be connected to the transmission line that needs de-icing, thus forming a DC circuit on the line. Due to the resistance of the transmission line, the DC current passing through will raise the temperature of the line, thereby melting the ice on it and achieving the de-icing purpose. 

Meanwhile, by controlling the triggering angle of the thyristor valve, the magnitude of the DC current added to the transmission line can be continuously and precisely adjusted in real time, thereby accurately controlling the temperature of the transmission line and achieving safe and effective line de-icing. 

The fixed DC de-icing device can safely, efficiently and rapidly perform fully automatic intelligent de-icing on transmission lines and ground wires of 66kV, 110kV and above voltage level substations in power systems that are prone to ice and snow freezing disasters.

The intelligent lighting control terminal (SLC series) supports a 50A/440VAC load and 3HP motor control. It is equipped with a high-precision anti-saturation CT (10mA sampling level) to collect the working current value of each circuit in real time, enabling the monitoring of lighting circuit faults and alarms. It supports RJ45, PowerBus bus (domestic power supply and communication integration), timed/manual control, and integrates 8 Ethernet communication channels and interchangeable key panels. It ensures high-reliability lighting control and flexible deployment in intelligent buildings and industrial scenarios.

The DSRI Tianlin intelligent diagnostic device adopts advanced edge computing methods, deeply integrating mechanism knowledge with artificial intelligence, focusing on solving the economic loss problems caused by the untimely discovery of faults in rotating equipment, and promoting the transformation of equipment maintenance from traditional preventive maintenance to predictive maintenance. The device mainly provides real-time operation and maintenance monitoring, intelligent fault diagnosis, and efficient equipment management functions, and always aims to help users manage equipment health more efficiently and ensure operational safety.

The intelligent low-voltage power protection device is suitable for low-voltage system motors. It integrates network communication technology and works in conjunction with contactors, circuit breakers, etc., providing a complete professional solution that combines control, protection, measurement, metering and communication for low-voltage AC motors. It can be used in intelligent MCC (Motor Control Center). This device can be expanded with temperature monitoring modules and insulation detection modules, and is applicable to multiple industry fields such as rail transit, power, petrochemical, light industry, coal, papermaking, steel, and metallurgy.

Mobile DC De-icer can safely, efficiently and quickly perform fully automatic intelligent de-icing on transmission conductors and ground wires of 35kV and above voltage level substations in power systems that are prone to ice and snow freezing disasters.

The power router is a new type of transformer that achieves energy transmission and power conversion through power electronics technology. Traditional industrial frequency transformers can transfer energy between AC systems of different voltage levels based on the principle of electromagnetic induction. In contrast, power electronic transformers, relying on power electronics and digital control technologies, can convert power in various forms, including AC and DC, at different voltages and frequencies. The product has achieved an industry-first compact and economical topology technology based on hybrid three-level, significantly reducing costs. The core components are made of silicon carbide (SiC) materials, which significantly improves the system's cycle efficiency.

Application: ZZMJ DC support capacitor is widely used in power electronic circuits of PV inverter, HV frequency converter, electric locomotive, electric vehicle, SVG, APF and other systems. It serves functions including filtering, energy storage, and protection, such as smoothing the output voltage of rectifier and absorbing high-amplitude ripple currents from DC busbars.

Features:

1. Self-healing capability: automatically restores insulation after dielectric breakdown during operation.

2. Withstands high ripple currents and peak currents.

3. Non-polarized design, it can sustains long-term reverse pulse voltage endurance.

4. Small dielectric loss, low equivalent series resistance(ESR), lreduced internal temperature rise, and stable temperature characteristics.

5. The capacitor is non inductive rolled, with small internal inductive ESL and fast charge and discharge speed.

6. Long service life, up to more than 100,000 hours.

It is widely applied in urban complexes, mobile, telecommunications, China Unicom operators, rail transit, distribution networks, industrial plants, etc., and has the function of transmitting power among power generation, transmission and distribution equipment.

The complete set of equipment for flexible DC transmission is the core device of the flexible DC transmission system. As one of the key technologies for building a new type of power system with new energy as the main body, flexible DC transmission technology represents the highest level of power transmission technology in the world today. The ±800kV/5000MW ultra-high voltage flexible DC transmission converter valve independently developed, designed and manufactured by the company has been successfully applied in the key national project of West-to-East Power Transmission (the U-Dengde Hydropower Station to Guangdong and Guangxi UHV Multi-Terminal Flexible DC Transmission Demonstration Project of China Southern Power Grid), marking that the company has become one of the suppliers capable of providing the largest capacity and highest voltage level of similar products in the world. In addition, the company has also participated in many national key flexible DC transmission projects such as Baihetan of State Grid, Rudong Offshore Wind Power in Jiangsu, Back-to-Back of Guangdong Power Grid, and Yangzhou Qingzhou Offshore Wind Power in Three Gorges.

In 2024, the company successfully won the bid for the Saudi Arabia Central-West Flexible DC Project. This was the first time that RXHK's flexible DC products were implemented in an overseas market, marking a significant breakthrough for the company in achieving the export of its independently developed high-end flexible DC transmission technology, standards, and equipment.

The main product include ACB, MCCB, MCB and ATSE. Product categories are comprehensive, featuring overload long-time delay, short-circuit short-time delay, short-circuit instantaneous, and under-voltage protection functions, which protect circuits and power supply equipment from damage.

Portable DC De-icer can form a controllable direct current on the transmission line by rectifying the 0.4kV or 1kV AC power supply through a silicon controlled rectifier. Due to the resistance property of the transmission line, the direct current passing through will raise the temperature of the transmission line, thereby melting the ice on the line and achieving the de-icing purpose. Meanwhile, by controlling the trigger angle of the silicon controlled rectifier valve, the magnitude of the direct current added to the transmission line can be continuously and precisely adjusted in real time, thereby accurately controlling the temperature of the transmission line and safely and effectively de-icing the line. It is suitable for distribution lines and transmission line ground wires, and can effectively implement safe, fast and convenient de-icing.

The SST direct-mounted energy storage matrix, integrating power electronic battery stacks and energy storage-type power routers. By replacing traditional PCS and transformers with power routers, it enhances the conversion efficiency of the energy storage system, meets more refined battery management requirements, builds a safer system architecture, and achieves faster grid support capabilities. The levelized cost of storage (LCOS) of the energy storage system is reduced by 32%, and the internal rate of return (IRR) of the system investment is increased by 45%.

High-voltage GIS composed of components such as circuit breakers(CB), busbars, disconnecting switches, voltage transformers, current transformers, lightning arresters, bushings, and grounding switches. It employs SF6 gas with outstanding insulation and arc-extinguishing performance as both insulation and arc-quenching medium, and seals all high-voltage electrical components within a grounded metal enclosure. Suitable for power grids with high voltage levels and large capacity ratings, it serves for power reception/distribution and control.

Features: compact structure, small footprint, high reliability, flexible component arrangement, convenient installation, strong safety, robust environmental adaptability, and minimal maintenance workload.

Voltage levels: 126kV, 252kV

Application: C-GIS is used in 12-40.5kV power transmission and distribution system to receive or distribute electric energy, and can control, protect, measure, monitor and communicate under normal operation or fault of power system. It can be used in electric power, metallurgy, port, construction, chemical industry, electrified railway and other places, especially suitable for underground, plateau, frozen soil, coastal, humid and other harsh environmental conditions.

Features: small floor area, all components are sealed and free from environmental interference, high operation reliability, convenient operation, long maintenance cycle, small maintenance workload, rapid installation and low operation cost.

Voltage level: 12kV, 24kV, 40.5kV

Application: it is used in power plants, substations, transformation and distribution centers of industrial and mining enterprises and starting equipment of large high-voltage motors for receiving and distributing electric energy, and controlling, protecting and monitoring circuits.

Features: safe and reliable, stable performance and convenient maintenance. It is developed by combining the structural advantages of domestic mainstream products and absorbing the advantages of foreign similar products

Voltage level: 12kV, 24kV, 40.5kV

Application: Power transformer is the main equipment of power plant and power station. It is mainly used in power grid, power generation, water conservancy, railway, aviation and various industrial and mining enterprises.

Features: Low loss, low temperature rise, low noise, low partial discharge, high insulation strength, high short circuit resistance, strong overload capacity, high operation efficiency, energy conservation and environmental protection, no hanging core required on site, etc.

Voltage level: 35kV ~ 750kV

Porcelain Bushing Capacitors for Special Application can meet specialized applications in AC/DC systems according to actual operating conditions and user requirements.

Features:

1. Carrier frequency range: 30–500 kHz

2. Aesthetically compact design with high insulation margin

3. Low dielectric loss and minimal partial discharge (PD)

4. Low temperature coefficient

5. High mechanical strength

Disk suspension toughed glass insulator is the company's main product, with more than 50 years of production history, sales covering the whole country and exported to more than 80 countries and regions. There are AC and DC series, with strength grade of 40kN-840kN with various umbrella structures. The products can reach the leading level compared with the similar products in the world.

Anti-drop glass insulator is a product developed by the company, which perfectly eliminates the damage to the environment and personnel caused by the self-explosion and scattering of glass insulator. It is especially suitable for densely populated areas such as plains, cities and towns, farmland, stations and other environments. There are AC and DC series, with strength grade of 40kN-840kN, with various umbrella structures.

This is a high-performance insulating sheet made by combining ceramic fibers with silica aerogel and processed through supercritical drying technology. It features low thermal conductivity, high water repellency, fire resistance and flame retardancy, and environmental friendliness. It can be applied in areas such as insulation, fire prevention and explosion protection between new energy battery packs and for the entire battery.

Porcelain insulators are mainly used in HV overhead transmission and distribution lines to insulate and support conductors. Different types of insulators, such as ordinary and pollution-proof types, are selected based on different pollution areas. They are also used in strings according to different voltage levels.

Porcelain insulators include HV suspension porcelain insulators, HV line post porcelain insulators, high-voltage line pin porcelain insulators, and high-voltage porcelain cross-arm insulators, with strengths of 40kN, 70kN, 120kN, 160kN, 210kN, 300kN, 420kN, and 550kN. They are used in strings according to different voltage levels: 35kV uses 3 pieces per string, 110kV uses 7 pieces per string, 220kV uses 14 pieces per string, and 500kV uses 28 pieces per string. For insulator strings of 220kV and above voltage levels, suspension products with a strength grade of 100kN or above are used.

Porcelain insulators have a long history of use in China. They are safe, reliable, and not prone to aging. Their service life is generally over 30 years, and the annual deterioration rate is less than 0.01%.

Application: Capacitive voltage transformer can provide voltage signals for electrical measuring instruments, protection and control devices in high voltage, ultra-high voltage and ultra-high voltage power systems with rated frequency of 50Hz, and also serve as coupling capacitors in power line carrier coupling devices.

Hollow composite insulators are mainly composed of glass fiber reinforced winding tube parts, silicone rubber climbing skirts and connecting flanges. 

Epoxy glass fiber reinforced winding tubes are the insulating inner components of hollow composite insulators. They are processed by winding with a special winding machine using epoxy resin pre-impregnated continuous alkali-free glass fibers in accordance with mechanical layering design, and possess excellent mechanical strength and dielectric properties. Silicone rubber creepage skirts serve as the outer insulation of hollow composite insulators, undertaking necessary electrical performance such as protection and providing creepage distance. The connecting flange is made of aluminum by die-casting and uses a unique bonding technology to transfer mechanical loads and provide sealing for the supporting and connecting structure. Hollow composite insulators are applicable in 40.5kV to 550kV power systems, such as SF6 transformers, SF6 circuit breaker sleeves, lightning arresters, high-voltage bushings, section capacitors, and cable terminals, among other high-voltage electrical products.

Application: The oil immersed current transformer is an outdoor single-phase oil immersed fully sealed structure, which is widely used in transmission lines with a frequency of 50Hz and a rated voltage of 110kV ~ 220kV. The oil immersed current transformer is a device for measuring by converting a large current at the primary side into a small current at the secondary side according to the principle of electromagnetic induction. It is connected in series in the line and provides current signal for electrical measuring instruments, instruments and protection and control device.

TATCOM is mainly used to provide dynamic reactive power and voltage support to the power grid. The device connects a voltage-source converter in parallel to the power grid through a reactor or transformer, automatically adjusts the amplitude of the output voltage on the AC side of the converter, rapidly absorbs or generates the required reactive power, and achieves the purpose of rapid dynamic voltage regulation and enhancing the stability of system operation.

The STATCOM products are mainly targeted at overseas markets and international customers in the field of new energy AC grid connection, and have been exported to regions such as Europe, America, Oceania and Africa. The large-capacity high-voltage active power filter (HAPF) developed by the company will be first applied in the Fujian-Guangdong interconnection DC project jointly carried out by State Grid and Southern Power Grid, to solve the problem of harmonic amplification in conventional DC converter stations and ensure the stable operation of the DC system. The sub-synchronous resonance suppression device (SSR-DS) launched by the company is mainly aimed at power plant customers. It uses dynamic reactive power technology to effectively suppress the occurrence of sub-synchronous resonance caused by new energy grid connection and other reasons, prevent damage to the turbine shaft system, extend the service life of the unit, and ensure the safety of power generation. The company is one of the first domestic manufacturers to apply this technology.

Our company has a variety of protection relays. Among them, DCR series protection relays are applicable to the protection, measurement and control of incomer, feeder, negative pole and rail potential of DC1500V or DC750V DC traction power supply system in rail transit. BYE series protection relay are applicable to measurement, control and protection of incomer and outgoing feeders, bus couplers, station transformers and rectifier transformers in AC 110kV main substation and AC 33kV (36kV / 40.5kV) main line in rail transit. ACR series is mainly used for measurement, control and protection of 27.5kV intercity lines. PDR series can be used for line overcurrent protection, line longitudinal current differential protection, bus coupler (sectional) charging protection, station transformer (grounding transformer) protection, capacitor protection, reactor protection, motor protection, automatic switching of standby power supply, fault disconnection and other application scenarios. In addition, GD7400 series configurable intelligent devices provide various types of configurable IED software and hardware platforms to facilitate users or system integrators to develop exclusive applications based on the platform.

Oil-impregnated paper bushings are manufactured by alternately winding insulating paper and aluminum foil around a conductive tube according to design specifications to form a capacitor packet. This packet is then housed within upper and lower porcelain shells (or composite hollow insulators) connected via a coupling flange. The assembly is subsequently vacuum-impregnated with transformer oil for insulation. Since producing China's first oil-impregnated paper bushing in 1958, our company has focused on technology introduction, mastering international manufacturing processes for oil-paper insulation products. This has enabled us to develop proprietary manufacturing techniques, bringing the technical parameters and performance indicators of our bushings to world-class standards comparable to advanced international counterparts. Our products even surpass foreign alternatives in electrical performance and insulation margins. In recent years, we have further launched seismic-resistant & explosion-proof oil-impregnated paper bushings, resolving the historical vulnerability to explosion during short-circuit failures. This innovation has breathed new life into traditional products.

Low-voltage power cables are suitable for power transmission and distribution networks and industrial installations with rated voltages of 0.6/1kV and 1.8/3kV, used for transmitting electrical energy.

Voltage grades: 0.6/1kV, 1.8/3kV

Insulation materials: Polyvinyl chloride insulation (PVC), cross-linked polyethylene insulation (XLPE)

RdbPlus takes real-time database as the core, supports wide area distributed communication networking, so as to build a large-scale distributed SCADA platform. Each node provides data acquisition gateway service (I/O Server), real-time data service (Rdb Server), massive historical data storage and retrieval, production condition graphics configuration and WEB publishing graphics system, and opens API (C/C++, C#, Java) and WebSocket interfaces for third-party access, so as to facilitate industrial data exploring and analysis.

Application: The miniaturized switchgear based on solid, SF6 gas and air insulation is widely used in industrial and civil cable ring network and power supply terminal. It is suitable for receiving and distributing electric energy in small secondary distribution stations, switching stations, urban communities, high-rise buildings and other power systems.

Features: Compact structure, complete schemes, flexible and simple combination, good seriality and versatility, fast supply.

Voltage level: 12kV, 24kV

It features low thermal conductivity, high hydrophobicity, fire resistance, flexibility, environmental friendliness, and long service life. It also has many excellent properties such as easy cutting and easy installation. It is widely used in aerospace, precision instruments, electronic products, new energy, biochemistry and other fields. 

According to the base material, it can be classified into pre-oxidized fiber aerogel felt, nano aerogel insulation board, wet-process glass fiber aerogel felt and foam aerogel felt.

Application: Suitable for power supply and distribution system with the frequency of AC 50Hz and rated working voltage below 400V, used for receiving and distributing electric energy, and controlling, protecting and monitoring the circuit.

Features: Strong current carrying capacity, high insulation level, large breaking current, reliable performance, mature technology and complete models, which can meet the needs of different power users such as substation, power plant, iron and steel metallurgy, municipal infrastructure, food and medicine, rail transit, data center, power plant and nuclear power.

Voltage level: 400V / 690V

Application: According to the requirements of electrical wiring, The switch, measuring instruments, protective appliances and auxiliary equipment are assembled in closed or semi closed metal cabinets or panels to form a low-voltage distribution box, which can meet the needs of power supply and distribution, lighting distribution, power conversion, distribution and control, metering and lighting power distribution in different occasions.

Features: Small volume, simple installation, unique configuration, not limited by the site, common application, stable and reliable operation, less land occupation and environmental protection.

Voltage level: 400V

FZW28-12 outdoor high-voltage AC vacuum load switch is mainly used for opening and closing load current and closing short-circuit current in 12kV three-phase AC 50Hz transmission and distribution system. It is suitable for protection and control in substation, industrial and mining enterprises and rural power grid distribution system, and is more suitable for frequent operation of power grid.

The main products include vacuum interupters for circuit breakers and reclosers, vacuum interrupters for load switches and sectionalizers, vacuum interrupters for contactors, embedded pole for circuit breakers and reclosers. They are exported to Japan, Southeast Asia, Russia and other international markets and are widely used in electric power, metallurgy, petrochemical, coal, electrified railways, urban railways, high-rise buildings, urban power grid and rural power grid control center.

Application: Rectifier transformers supply power to rectification equipment, extensively applied in electrochemical processes, metallurgical operations, traction systems, drive applications, electrostatic precipitation, and DC power supply fields.

Features: Reliable insulation strength, strong short-circuit resistance, high overload capacity, high operation efficiency, low noise, energy conservation and environmental protection.

Voltage level: 35kV ~ 330kV

Application: Cast resin dry-type transformer can be used in various fields, especially in areas with prominent fire safety problems, including mines, oil platforms, subway stations, schools, business centers, high-rise buildings, etc.

Features: Low partial discharge, strong short-circuit resistance, good lightning impact resistance, low noise, remarkable energy-saving effect, safety, flame resistance, fire prevention, no pollution, maintenance free, simple installation, low comprehensive operation cost, good moisture resistance, etc.

Voltage level: 10kV, 20kV, 35kV

SiO₂ aerogel particles are an inorganic, nano-porous solid material produced through a supercritical drying process. They feature low density, high specific surface area, high fire resistance rating, environmental friendliness, and excellent sound insulation and shock absorption performance. They can be applied in fields such as gas adsorption, home appliances, water treatment, and thermal insulation fillers. 

SiO₂ aerogel powder is an inorganic nano-porous solid material made through supercritical drying process, which is the product of aerogel particles after classification and crushing. It features low density, high specific surface area, high flame retardancy and fire resistance, environmental friendliness, as well as excellent sound insulation and shock absorption performance. It can be applied in fields such as gas adsorption, home appliances, water treatment, and thermal insulation fillers. 

SiO₂ aerogel microspheres are inorganic high-porosity microsphere materials made through supercritical drying technology. They have a thermal conductivity of less than 0.018 W/(m·K), a density of 50 to 180 kg/m³, a specific surface area greater than 1000 m²/g, are A1 grade flame retardant and fireproof, environmentally friendly and green, can be reused multiple times, and can be applied in fields such as gas adsorption, water treatment, and thermal insulation fillers.

Application: The equipment is used in AC and DC fields of converter stations for HVDC transmission projects, respectively applied to improve system power factor and filter out high-order harmonics, while providing reactive power compensation and filtering AC components in DC systems.

Features: Voltage ranging from ±500kV to ±800kV for HVDC transmission projects; world-class design and manufacturing technologies; visually refined structure; superior performance; reliable operation.

System Voltage Rating: 220kV～1000kV.

Application: The equipment is used in power systems above 1kV, industrial and mining power distribution networks, and electric railways to improve system power factor, reduce line losses, and enhance voltage quality.

Features: Reliable performance, safe operation, long service life, simplified installation, convenient maintenance, compact structure, and small footprint.

Application: It is used in 1kV ~ 1000kV transmission and distribution system to compensate the inductive reactance of power line, reduce line voltage drop, increase transmission capacity and improve line stability.

Features: Safe and reliable performance, long service life, internal fuse or non-fuse design can be adopted, and the bushing adopts effective anti-leakage structure.

Application: The device is used for power systems above 1kV, distribution networks of industrial and mining enterprises and electrified railways to improve the power factor of the system, reduce line loss and improve the voltage quality of the system.

Features: Reliable performance, safe operation and long service life. The utility model has the advantages of simple installation, convenient maintenance, compact structure and small land occupation.

Application: BKMJ self-healing HV shunt capacitor is used in AC power system with voltage above 1kV, for improving power factor, adjusting network voltage and reducing line loss.

Features:

1. The capacitors adopt a self-healing structure, allowing automatic recovery after normal dielectric breakdown, ensuring continuous operation.

2. Equipped with a sensitive and reliable "pressure-fuse" as the primary protection, which promptly isolates faulty components without affecting adjacent elements.

3. The capacitors utilize a liquid-free dielectric structure, eliminating leakage risks, environmental pollution, and enhancing safety and eco-friendliness.

4. 1.Designed with modular stacking technology, offering compact size, small footprint, and convenient installation

Intelligent capacitor bank is a reduced version of TSC/MSC complete set device. It has small and beautiful appearance, small single capacity, suitable for occasions with low demand capacity and narrow installation space. It can also be arranged in cabinets with multiple groups of intelligent capacitors, beautiful and neat, convenient installation and simple wiring. Intelligent capacitor integrates advanced industrial technology and industrial appearance design art such as modern measurement and control, power electronics, network communication and automatic control, with smaller size and lower power consumption, convenient maintenance and long service life.

A hydrophobic SiO₂ aerogel slurry with dry slurry density as low as 60kg/m³ and room-temperature thermal conductivity down to 0.018W/(m·K), exhibiting exceptional hydrophobic properties. Applicable in thermal insulation coatings, fireproof coatings, high-temperature coatings, building insulation blanket, and related fields.

Aerogel coating constitutes a high-efficiency thermal insulation material manufactured by compounding hydrophobic SiO₂ aerogel powder with inorganic binders. Featuring room-temperature thermal conductivity as low as 0.030W/(m·K) and maximum service temperature of 400°C, it is applicable for gap filling, bonding, and repair in thermal insulation applications for profiled pipelines and equipment.

TSC/MSC Dynamic Reactive Power Compensation Products features a fully digital intelligent control system centered on high-performance chips. By using thyristors as rapid, contactless zero-crossing switches for capacitor banks, it automatically adjusts compensation based on reactive power/power factor targets, enabling real-time tracking compensation and harmonic suppression. This system is extensively deployed in industrial facilities, urban/rural grid upgrades, street lighting networks, and residential power distribution systems.

DC ice melting device can melt the line icing by adjusting the trigger angle of thyristor and adopting the mode of controllable rectifier power supply, which is widely used in power grid system. The capacity device of the company can be transformed into SVC operation without ice melting through reconstruction, which greatly improves the equipment efficiency.

The modular APF can filter out 2-50th harmonics, support multi-machine parallel operation, and the working mode can be set independently. It supports various network protocols (such as Modbus, UDP, etc.) and has been widely applied in the power supply and distribution systems of enterprises, commercial institutions, and government organizations. Its main applications include: power systems, petroleum, tobacco, chemical industry, metallurgy, pharmaceuticals, shipbuilding, automotive manufacturing, telecommunications, cement, mining, electrified railways, precision mechanical processing, welding, textile, printing, precision electronics, etc.

High-end equipment such as the MaxiVert high-power converter is mainly applied in clean energy and key national strategic projects. The company's independently developed 10kV/20MW-class ultra-high power frequency conversion device has broken the foreign monopoly. The product has comprehensively replaced imports in the national key project of the West-East Gas Transmission's long-distance natural gas pipeline project, and has also driven the technological progress and domestic application of core components such as the crimp-type IGBT.

The 86MVA variable frequency speed regulation device independently developed by the company for aerodynamic tests has overcome several major technical difficulties in variable frequency, such as ultra-high power, high rotational speed accuracy, high dynamic response, high energy consumption braking, high electromagnetic compatibility and high reliability. It has solved the "bottleneck" problem of aerodynamic tests for large aircraft in China, broken through the foreign technological protection barriers, promoted the progress of related domestic industries, and made significant contributions to promoting the development of China's aviation equipment and improving the research and development and testing capabilities of national major technical equipment.

Dynamic Voltage Restorer (DVR) is a series compensation device equipped with energy storage devices (systems), which has the ability to compensate for active power in addition to reactive power. It generates compensation voltage within 1 to 2 milliseconds, ensuring that the load side voltage is not affected by disturbances and guaranteeing the safe and reliable operation of sensitive loads, computers, and other equipment. DVR has been widely applied in high-precision fields such as integrated circuit manufacturing, power electronics chip manufacturing, aircraft, automobiles, and mobile phone manufacturing; as well as in high-security fields such as airports, hospitals, IT, and telecommunications industries.

GZDW series high frequency switching DC power supply provides high reliability, low loss and stable power supply system for rail transit, substation, power plant, communication room, building, hospital, industrial and mining enterprises and other scenes.

The large capacity fast charging device adopts modular design and is applied to the fast charging of super capacitor energy storage tram.

PDR-985 clock synchronization device meets the time synchronization requirements of substation, UHV AC / DC and dispatching system, and provides time synchronization services for station protection, measurement and control, phasor measurement, fault recorder, communication device, merging unit, intelligent terminal and monitoring system. It is also suitable for power plant, new energy, airport, railway, enterprise network and other applications.

Emergency power supply (EPS) is an ideal power supply to provide centralized power supply. It can provide power supply for various primary and secondary loads and fire-fighting facilities in case of power failure or other emergencies. It is widely used in municipal public facilities, subway, power plant and other scenes.

PDR-993 protection information sub-station is a new type of substation automation information integrated management device. As a platform for information collection, sorting and analysis, it can quickly, simply and comprehensively obtain fault information and communicate with the master station of fault information system.

The HV SVC series products include TCR and MCR types. They adopt HV thyristor series technology and can be directly connected to 35kV, with a capacity of up to 180MVar. By real-time adjustment of the conduction angle of the thyristor valve, the purpose of rapid reactive power regulation can be achieved. In addition, the phase-by-phase compensation function of SVC can eliminate three-phase imbalance, and the filter device can eliminate harmful high-order harmonics and provide capacitive reactive power to the system to improve the power factor. SVC has unique advantages in the metallurgy, steel, mining industrial fields, especially in the treatment of large impact and unbalanced loads such as electric arc furnaces.

PDR-998 telecontrol communication device is applicable to substations of various voltage levels for data acquisition of the whole station, establishment and maintenance of unified data platform, remote data output and advanced function application. As an intelligent communication management device outside the substation, it integrates the functions of monitoring, conventional telecontrol, protection information, on-line monitoring, power metering, phasor measurement, programmed operation, video acquisition and forwarding and station level advanced applications.

The high-voltage soft start device adopts the high-voltage thyristor series technology, which is used in the motor starting process. By adjusting the conduction angle of the thyristor valve, the starting impulse current of the motor can be greatly reduced.

GD-7900 series communication gateway device is developed based on Etherne by using mature computer technology and network communication technology on the basis of summarizing many years of experience in the development and operation of substation integrated automation system to meet the needs of substation integrated automation.

High-voltage SVG (Static Var Generator) adopts H-bridge modular cascaded technology, enabling direct connection to 35kV systems. Through phase-shifted carrier modulation control, it dynamically adjusts the amplitude and phase angle of the output voltage on the AC side of the inverter, rapidly absorbing or delivering required reactive power. This achieves voltage stabilization, reactive power compensation, suppression of voltage fluctuations and flicker, and three-phase imbalance mitigation.

SVG series products are extensively applicable in petroleum & chemical industries, power systems, metallurgy, electrified railways, and urban construction sectors. They provide high-quality, reliable reactive compensation and filtering solutions for various equipment including: asynchronous motors, transformers, thyristor converters, variable-frequency drives (VFDs), induction furnaces, lighting systems, arc furnaces, electric locomotives, hoists, cranes, stamping presses, elevators, wind turbines, welding machines, resistance furnaces, and quartz melting furnaces.

GD7100 series ring communication box is developed based on high reliability seamless ring network (HSR) and parallel redundancy protocol (PRP).It can replace the traditional network switch to realize efficient networking in the station. The adoption of HSR and PRP enables the system to switch seamlessly in case of network failure, so as not to affect the control, protection and other automation services with strong real-time and high reliability.

PDR-201A is highly integrated with technologies such as " cloud computing, big data, internet of things, artificial intelligence, mobile internet" and a centralized monitoring and management platform based on multi-source data collaboration to realize intelligent, visual, automatic and interactive new modern distribution room for equipment status monitoring, real-time environmental monitoring, behavior safety control and efficient support of social services.

PDR1300 substation computer monitoring system (Linux platform) adopts object-oriented technology for system design, and the software adopts international standards such as C + +, TCP / IP, SQL, MOTIF and QT, which has good openness. The system can be widely used in substations with various voltage levels.

The rail transit power intelligent operation and maintenance master station system is developed based on IEC61850 standard model, edge computing, big data and AI technology and micro service architecture. Realizing intelligent and unmanned operation and maintenance of power system can greatly reduce the work intensity of maintenance personnel and improve maintenance efficiency.

The substation intelligent video inspection system is developed based on artificial intelligence (AI), which is established to meet the lean management requirements for the operation, maintenance and repair of intelligent substation, so as to detect the operation status and operation environment of substation equipment. The intelligent inspection of camera video is adopted as an effective alternative to manual inspection, Through the unified monitoring platform, the patrol inspection data are compared and trend analyzed to timely find the operation of power equipment in the substation and the potential safety hazards and fault precursors in the environment, improve the automation and intelligence level of substation operation and maintenance, and ensure the safe and reliable operation.

The distribution automation feeder terminal realizes the remote signaling, telemetry and remote control of the switch on the column, and is equipped with protection, feeder automation and other functions.

As a centralized distribution automation terminal, the terminal of distribution automation station has the functions of remote signaling, telemetry, remote control, communication, protection and so on.

Distribution terminal encryption box is mainly used for information security upgrading and transformation of distribution automation terminal, and meets the communication security upgrading requirements of distribution automation feeder terminal unit (FTU), transformer terminal unit (TTU) and distribution terminal unit (DTU).

Intelligent distribution terminal unit / smart hybrid terminal unit is a secondary equipment integrating the functions of power consumption information acquisition, equipment operation status monitoring, intelligent control and communication, which meets the requirements of basic operation information monitoring and analysis, power quality monitoring, demand side management, operation and maintenance management and control of low-voltage distribution network, information model standardization, coordinated control of master station terminal, etc, It is the key link to realize the intellectualization of low-voltage distribution network.

The modular LV distribution box is used to connect temporary power or power consumption scenarios such as venues or temporary large-scale activities. The distribution box can be connected flexibly, quickly, safely and reliably. Standardized access, safe access and intelligent access are realized through modular low-voltage distribution box. This product has been used in Beijing Winter Olympic Games.

Single phase intelligent power meter is designed with the most modern microprocessor. It has the characteristics of comprehensive measurement function, high precision and convenient installation.

The three-phase intelligent power meter takes the industrial microprocessor as the core, with high processing speed, modular design, flexible configuration and convenient function expansion.

The intelligent temperature and humidity controller adopts a variety of technologies such as microprocessor technology, sensor technology and computer. It uses a high-precision temperature and humidity sensor to measure the environment with high brightness LED display, and carry out comprehensive control according to different operating states. It is suitable for on-line monitoring of low and high temperature, automatic heating and dehumidification, low temperature automatic heating and high temperature automatic exhaust of terminal box, high and low voltage switchgear, transformer, prefabricated substation, circuit breaker and other equipments.

The AC switch action characteristic monitoring device is applicable to the voltage level of 110kV and below, can record the opening and closing process of the circuit breaker and the waveform when the current and voltage are abnormal, and can read the current and voltage waveform in real time for power quality and waveform analysis. The device integrates wave recording, measurement, monitoring, communication and other functions.

The DC switch action characteristic monitoring device is applicable to 750V and 1500V voltage levels. It is used for the rail transit DC traction power supply system to record the opening and closing process of the circuit breaker and the waveform when the current and voltage are abnormal. It can read the current and voltage waveform in real time for power quality and waveform analysis. The device integrates wave recording, measurement, monitoring, communication and other functions.

8GB4 manual operation box is a controller for subway ventilation system. It can remotely operate the fan with PLC. The whole manual box control system consists of manual box, coupler and junction box. The coupler is connected with the manual operation box through the CAN bus, and up to 31 manual operation boxes can be hung 

The new generation of air valve controller developed by the company is suitable for subway ventilation control system. It cooperates with PLC, air valve travel switch and air valve motor to control the opening or closing of air valve and improve the safety of the system.

The double side tripping device is used to realize the DC switch tripping function between two metro traction stations. At present, the DC switch cabinet for metro traction power supply adopts multi-core control cable to transmit electric pulse signal to realize the joint tripping function of DC switch between two traction stations. Although the scheme is mature and the reliability meets the requirements, it will cause problems such as complex design, difficult construction and maintenance, limited transmission distance and lack of signal channel monitoring.FMT100 uses optical cable instead of cable to transmit signal, and realizes the function of replacing multi hop cable by means of communication and logic programming, which can make the whole design, construction and maintenance process simple and easy.

PDR1800 distribution intelligent centralized control system (Linux platform) adopts object-oriented technology for system design, and the software adopts international standards such as C + +, TCP / IP, SQL, motif and QT, which has good openness. The system can be widely used in various centralized control centers of power transformation and distribution.

The DC traction protection tester is applicable to the DC traction system of rail transit. The device mainly realizes the functional test of DC traction protection device and DC transmitter, and cooperates with relevant maintenance software to make the tester carry out accuracy test, response time test and relevant input and output curve drawing within the range. The whole test system consists of embedded tester device and host computer software.

The main insulation of RIP bushing is the resin-impregnated paper capacitor core, which is alternately wound on the conductive pipe (rod) with insulating paper and aluminum foil according to the design requirements, impregnated with epoxy resin mixture under vacuum and cured at high temperature. The capacitor core is sealed and assembled into the dry type RIP bushing through the connecting flange and porcelain sleeve (or composite hollow insulator).This kind of casing truly realizes dry and oil-free. Since its invention in 1960, it has been widely used in Europe, America, Japan and other countries with its unparalleled advantages of OIP bushing. The company fully introduces talents with many years of manufacturing experience and German automatic manufacturing equipment to realize the high-quality production.

Resin-impregnated fiber dry-type bushings utilize a resin-impregnated fiber capacitor packet as the primary insulation. This packet is manufactured through a process where high-insulation glass fibers, saturated with ultra-low viscosity heat-resistant epoxy resin, are wound in a geodesic pattern via computer-controlled winding equipment to form cross-laminated insulation layers. Semiconductor conformal material constitutes the capacitor screens, with insulation layers and capacitor screens alternately wound in spaced configurations before undergoing high-temperature curing to form a pure solid capacitor packet. The connection flange, fabricated from high-strength aluminum alloy, is integrally bonded with the condenser core. Silicone rubber weather sheds are injection-molded and adhesively bonded onto the condenser core surface, forming an organic unity with the core. Since its invention by our company in 2001, this product has earned acclaim from extensive users for its compact size, lightweight construction, maintenance-free operation, high mechanical strength, and reliable operational safety. Its adoption continues to demonstrate steadily increasing market penetration.

It is used for fixed wiring or mobile laying of power equipment with rated voltages of 450/750V and below.

Voltage levels: 300/300V, 300/500V, 450/750V (i.e. rated voltage 450/750V and below)

Insulating materials: Polyvinyl chloride insulation, cross-linked polyolefin insulation, polyolefin insulation

It is suitable for control, monitoring circuits and protection lines with an AC rated voltage of U0/U 450/750V and below, and is used as control wiring between electrical equipment.

Voltage level: 450/750V

Insulation materials: Polyvinyl chloride insulation, cross-linked polyethylene insulation

This type of power frequency rated voltage 0.6/1kV to 26/35kV transmission and distribution line power transmission cable is suitable for important places such as high-rise buildings, power plants, nuclear power stations and tunnels.

Voltage grades: 0.6/1kV, 1.8/3kV, 6/6kV, 6/10kV, 8.7/10kV, 8.7/15kV, 12/20kV, 18/20kV, 18/30kV, 21/35kV, 26/35kV (i.e. rated voltage from 0.6/1kV to 26/35kV)

Insulating material: Cross-linked polyethylene insulation (XLPE)

Overhead insulated cables are suitable for overhead fixed installation and household lead-in lines.

Voltage level: 1kV, 10kV

Insulation material: Polyvinyl chloride (PVC) insulation, cross-linked polyethylene insulation(XLPE).

It has good performance in preventing rats, termites and resisting ultraviolet rays. The termite prevention test passed the group method level 1 test. The product has been granted a utility model patent and its technology has reached the international leading level. It includes 1500V DC power cables, mainly used in DC power supply systems with a system voltage not exceeding 1500V. It is divided into cross-linked polyethylene insulated and ethylene propylene rubber insulated types. The product has been granted a utility model patent and its technology has reached the international leading level. It is widely used in nearly ten well-known domestic metro lines such as the Knowledge City Branch Line, Line 14 and Line 21 of Guangzhou Metro.

The products are widely used in environments with rated voltages of 0.6/1kV and below, such as high-rise buildings, hotels, hospitals, airports, rail transit systems, and schools. They are mainly suitable for cables of equipment that need to continue working for a certain period of time during a fire, such as emergency power supplies, fire pumps, fire elevators, fire smoke exhaust fans, and emergency evacuation lighting.

EconWorx electromechanical internet of things cloud platform is an industrial software for electromechanical equipment system monitoring, scheduling and operation and maintenance management. EconWorx takes the distributed real-time database RdbPlus as the core, integrates the open-source distributed database Hadoop and relational database to build the data center. The service platform layer develops the basic management toolbox based on the micro service framework, and the application layer invokes the platform service API to quickly realize the application APP of the solution in the professional field. EconWorx has the characteristics of high reliability, high availability, cross platform and easy scalability. The application of EconWorx can realize the visual real-time monitoring, production scheduling, energy-saving control and preventive operation and maintenance management of large-area electromechanical systems. It is widely applicable to rail transit, power plants, distributed power energy, intelligent water affairs, internet of things and other fields.

B-ISCS integrated monitoring system adopts computer network, automatic control, communication, distributed and other technologies to conduct unified monitoring and centralized control for multiple disciplines such as power, electromechanical, passenger information, fire alarm, closed-circuit television, access control, screen door, etc. Users can easily and effectively monitor and manage the operation of relevant electromechanical systems in operation, realize information sharing and linkage control of various disciplines, improve operation and maintenance efficiency. It has five advantages of massive, reliable, flexible, efficient and high performance, break through the bottleneck of industrial data processing, and fully meet the needs of operation refinement and expansion.

Based on the cloud platform, apply self-developed products and technologies, aiming at the applications in the field of rail transit in 5G/WIFI6, cloud computing, big data, industrial internet of things platform, combined with new technologies such as BIM+GIS 3D map visualization, AR and digital twin, build a passenger service-oriented integrated monitoring system for intelligent operation and maintenance and intelligent dispatching.

Baiyun B-PSCADA takes advanced and efficient real-time database as the core design, and adopts hierarchical and distributed integrated structure. It can not only realize the "four remote" (i.e. remote signaling, remote control, telemetry and remote regulation) functions for each substation equipment to monitor the operation of power supply system equipment, but also realize the comprehensive functions such as accident abnormal alarm, event record, statistical report, electric energy cost monitoring and load management.

The environment and equipment monitoring system, referred to as BAS system for short, is an automatic monitoring system for the monitoring of relevant electromechanical equipment in stations, yards and tunnel sections of the whole subway line. It will monitor the operation status and system parameters of equipments mainly including tunnel ventilation system equipment, large station / depot ventilation and air conditioning system, small ventilation and air conditioning system, air conditioning water system equipment, water supply and drainage equipment, escalator, elevator, rolling shutter door, lighting system (including intelligent lighting system), emergency lighting power supply, section water supply and drainage, flood gate and other equipments, as well as ambient temperature and humidity parameters of station public area and equipment room.

B-PHM fault prediction and health management system comprehensively collects monitoring parameters, electrical parameters, environmental parameters, status parameters, video data, factory data and maintenance data at key positions of power supply equipment through online monitoring, system access and manual input;

The AI algorithm is used to clean the data of power supply equipment state parameters and train the intelligent prediction model. At the same time, the trend of relevant temperature and vibration is predicted, and the video data is automatically identified and analyzed.

The intelligent model is applied to realize the functions of on-line monitoring, condition evaluation and life prediction of key positions of equipment, and provide corresponding maintenance strategies for each equipment.

The integrated energy management system is developed based on internet of things, big data, cloud computing and other technologies. It has the functions of data acquisition, alarm management and energy monitoring. It provides users with online monitoring, energy consumption analysis, report, energy control and other services to help enterprises realize energy management scheme quickly, low cost and zero risk.

Based on the internet of things, cloud platform, intelligent operation and maintenance and other technologies, the power distribution integrated management and control platform collects important information such as power supply operation data and environmental data of the distribution room through IOT equipment such as instruments, sensors and cameras, so as to realize the functions of system online monitoring, fault alarm, data analysis, energy management and asset management, and effectively improve the operation safety of the power room. Keeping the reliability, it also brings new digital operation and maintenance experience services to users, improves operation and maintenance efficiency, and reduces cost and increases efficiency for enterprises.

The intelligent operation and maintenance system of B-ECPS high efficiency chiller room of Yangxin company aims to participate in the early design project construction, automatic control scheme, monitoring platform and the whole life cycle of the later operation and maintenance room, deepen the details of specific parts such as equipment selection, design optimization, automatic control optimization, management platform and fault detection, and comprehensively consider the optimization space of the central air conditioning system.

YXM-100 background monitoring system not only has basic monitoring and data acquisition (SCADA) functions, but also includes monitoring, information acquisition, analysis and management functions of microcomputer protection equipment, as well as communication and management information system(MIS) interconnection and the ability to form a larger scale information system. YXM-100 background monitoring system is a comprehensive multi-functional system platform based on the latest software and hardware technology, integrating our research and development experience in SCADA system, substation automation system and protection information management system, and referring to similar products at home and abroad. It can be widely applied to various power station automation system and meet the information requirements of different management departments.

The power quality analysis system is mainly used to analyze the AC voltage of 110kV and below in the medium scenarios of power grid and rail transit. It can record the waveform during the opening and closing process of circuit breaker or when the current and voltage are abnormal, and can read the current and voltage waveform in real time for power quality and waveform analysis. It has the functions of historical electrical data, real-time wave recording data, historical data copy, historical maximum data curve, historical power factor data curve, fault event recording, etc. The power quality analysis system has the characteristics of beautiful interface, simple operation, comprehensive display data and perfect analysis function. It is a ideal tool for on-line monitoring in communication.

The waveform analysis system can display the waveforms of multiple stations and equipment in the same interface at the same time, including both AC wave recording device and DC wave recording device, so as to compare the waveform information of different equipment at the same time. AC wave recorder and DC wave recorder have high-precision synchronous time synchronization function. The waveform analysis system has beautiful interface and simple operation, and has the following functions:

1.Record the voltage, current and corresponding switching value information of multiple stations and multiple AC and DC equipment in real time, and save the data;

2.It can carry out harmonic analysis and vector analysis;

3.It can save historical data and make statistics on the latest value data and electricity data;

4.It can record faults and open the fault recording waveform for analysis;

5.Alarm records and log records can be stored, and relevant records can be stored in tabular form;

Application: It is used for two-way power supply and AC / DC power conversion in local distribution network and island power grid.

Features: Flexible DC transmission is a flexible two-way power transmission and reception mode, especially in medium and low-voltage local distribution network and island power transmission and reception network. When the local distribution network and island distribution network are powered, the power is input, and when the local distribution network and island distribution network generate power, the power is output. The island distribution network adopts DC transmission, and the power loss is lower than that of AC transmission, which saves the operation cost of the power grid. DC transmission relay protection is simpler and easier to set and control than AC transmission relay protection, which saves the installation cost of the whole system equipment.

Voltage level: 10kV, 35kV

Application: Suitable for traction power supply system of urban subway, light rail and other rail transit.

Features: It has the characteristics of fire prevention, flame resistance, moisture resistance, energy saving, low noise, no pollution to the environment, simple operation and maintenance, can go deep into the load center, safe and reliable, strong short-circuit resistance, and can effectively suppress the impact of harmonics on the power grid.

Voltage level: 10kV, 20kV, 35kV

The DC line network health management system collects the electrical quantity data of key DC line network equipment such as DC switchgear, DC disconnector, DC feeder cable, internet cable, catenary and negative return rail in real time through various synchronous data acquisition terminals, and uploads them to the cloud in real time. The platform software analyzes and calculates the historical and real-time data of each equipment, node and branch of DC line network, and evaluates the current operation health status and existing safety risk points of each equipment and line of DC line network. The system can replace a large number of manual inspection of DC line network, make up for the blank of safe operation monitoring of equipment in the existing DC line network, improve the operation level of the existing DC line network, and greatly reduce the operation and maintenance cost of metro power supply system. The software system has the characteristics of integrating multiple sub functional modules into one system, convenient operation and clear contrast.

Application: DC traction switchgear is applicable to 750V / 1500V DC traction power supply system, mainly used in heavy rail transit, urban subway, tram and monorail railway.

Features: It introduce DC switchgear and NDC DC circuit breaker technology of British HSS company, and improve the product in combination with China's market characteristics and user needs. NDC DC circuit breaker uses the patented technology of permanent magnet operating mechanism, standardized and modular design, simple operation, very little maintenance workload, and the product life is more than 30 years, thus reducing the comprehensive cost.

Voltage level: 750V / 1500V

Application: Traction transformer is used to transfer the electric energy of three-phase power system to two single-phase traction lines with load. Two single-phase traction lines supply power for up and down locomotives respectively, which are mainly used for urban subway and rail transit power supply system.

Features: Reliable insulation strength, strong short-circuit resistance, high overload capacity, high operation efficiency, low noise, energy conservation and environmental protection

Voltage level: 110kV ~ 220kV

Application: Dry type step-up transformer (SCB Series) for offshore wind power tower is the main electric equipment in wind turbine. The working environment of offshore wind power is relatively bad, which is easy to cause salt fog, mold, ocean waves, changeable climate and temperature, and damp heat, which puts forward high requirements for the environmental adaptability and reliability of the equipment.

Features: The product adopts water-cooled backpack for heat dissipation, with outstanding environmental adaptability, good maintainability, strong corrosion resistance, strong short-circuit resistance, strong short-circuit resistance, and safe and reliable product operation.

Voltage level: 35kV