Products

Our SVC includes three types to meet the needs of different industries and sites: MCR, TSC, and TCR. The MCR type SVC adopts self coupled DC excitation and limit magnetic saturation working mode, which not only greatly reduces the generated harmonics, but also has low active power loss and fast response speed. By changing the triggering angle of the thyristor in the MCR excitation system, the saturation degree of the magnetic flux in the core of the magnetic control reactor can be altered, thereby changing the reactive power capacity output of the magnetic control reactor.

The MCR type SVC has extremely high reliability, maintenance free, and a service life of not less than 20 years. Important systems such as electrified railway traction power supply networks have been given priority for adoption; Capable of stable and reliable operation in any harsh power grid working environment (such as voltage waveform distortion, large amplitude fluctuations, etc.); It can directly operate in any voltage level power grid (6-500kV), and is easy to install (similar to ordinary transformers) and debug; The reactive power compensation capacity can be infinitely adjusted to achieve the best compensation effect.

SVG as a dynamic reactive power source, uses high-speed computing components such as DSP/IGBT, combined with ultra precision control programs, to track real-time changes in grid current, and increase the PF value to 0.99 within 15ms.
The widespread application of large capacity nonlinear loads and impulse loads such as power electronic equipment in transmission and distribution grids and industrial users has brought serious power quality problems. SVG can significantly improve the power quality at the connection point between loads and the public power grid, such as improving power factor, overcoming three-phase imbalance, eliminating voltage flicker and voltage fluctuations, and suppressing harmonic pollution.
The SVG dynamic reactive power compensation device produced by our company has advantages in response speed, stable grid voltage, reduced system losses, increased transmission force, improved transient voltage limit, reduced harmonics, and reduced footprint.The development of SVG relies on our company's strong technical strength, fully utilizing our comprehensive research, design, manufacturing, and testing capabilities. Our company has close academic connections and technical cooperation with well-known research institutions and electrical companies at home and abroad. We are willing to work together with our customers to improve the power quality of the power grid with advanced technology and high-quality products, and contribute to energy conservation, consumption reduction, and safe production in the power generation, supply, and consumption sectors.

Faced with the severe problem of power harmonic pollution, AHF is the most effective tool to improve power quality. AHF is a new specialized equipment for power harmonic control developed using modern power electronics technology and digital signal processing technology based on high-speed DSP processing devices. AHF is equivalent to a harmonic current generator, which tracks the harmonic components in the harmonic current and generates harmonic currents with equal amplitude and opposite phase.AHF consists of two parts: the instruction current operation circuit and the compensation current generation circuit. The instruction current operation circuit detects the current in the circuit in real time, converts the analog current signal into a digital signal, and sends it to a high-speed digital processor (DSP) for signal processing. The harmonic and fundamental currents are separated to obtain the instruction current, which is then sent to the compensation current generation circuit in the form of a pulse width modulation (PWM) signal through the current tracking control circuit and drive circuit. The IGBT and IPM power modules are driven to generate a compensation current with the same amplitude and opposite polarity as the harmonic current, which is injected into the power grid to compensate or cancel the harmonic current, actively eliminate power harmonics, and achieve dynamic, fast, and thorough processing of power harmonics.

IGES can compensate for the blind spots in the monitoring and protection of existing substation grounding networks, and is a comprehensive early warning and defense system that realizes digital and intelligent management of substation grounding networks. IGES can provide multi-point and multi-dimensional real-time online monitoring and waveform recording, comprehensively monitor system grounding safety hazards, have warning functions, and have the ability to actively defend against various overvoltage and grounding safety hazards in the secondary system.

The main functions of the IGES intelligent ground grid warning and defense system include: (1) providing online protection functions such as secondary overvoltage, ground potential counterattack overvoltage, and ground grid interference suppression; (2) Provide real-time data monitoring function for important parameters such as grounding impedance, grounding current, grounding grid potential, and spectrum analysis; (3) Provide pre alarm functions such as grounding impedance exceeding limit, ground potential exceeding limit, power supply voltage and current exceeding limit, etc; (4) Provide a digital management platform, providing online display of major electrical parameter data and waveforms, historical records, important event records, warning and defense, etc.

CAFS is developed based on the actual operating characteristics of 6kV~110kV power cables. It adopts a layered distributed structure and integrates various advanced digital technologies to adapt to harsh operating environments. It monitors the insulation status of power cables in operation and analyzes transient traveling waves of power cable grounding wires in real timeSignal characteristics, early detection of insulation faults in power cables and timely prediction, to avoid power outages caused by sudden cable failures and improve power supply reliability.

RONS accurately captures all the details of nanosecond level peak overvoltage, and is a microscope and magnifying glass for transient overvoltage. The RONS peak overvoltage nanosecond level recording analyzer has three major functions: monitoring, recording, and analysis. RONS has a high sampling frequency of 20MHz and can monitor the voltage and current of the system in real-time online. It can record the voltage and current fault waveforms of the system for a long time.

RAVS is a monitoring device specifically designed for online long-term high-frequency recording of sudden changes in system voltage. RAVS can monitor system voltage in real-time online, monitor voltage fluctuations and power quality of the system, and has the characteristics of high accuracy, high precision, high response speed, and high stability.

RAVS is unable to accurately capture information on short duration system voltage fluctuations using commonly used waveform recorders or power quality monitoring devices in the market. RAVS can accurately monitor and record the changes in system voltage for a long time, and conduct real-time analysis of voltage issues such as voltage flicker, voltage oscillation, voltage deviation, voltage surge, voltage grounding, voltage short circuit, etc. Based on the recorded analysis results, it provides accurate quantitative parameters and reasonable solutions for fault warning, fault analysis, and fault resolution.In addition, RAVS can also perform real-time online monitoring of conventional power quality such as system voltage, current, power, THD, and imbalance.

RAVS is a monitoring device specifically designed for online long-term high-frequency recording of sudden changes in system voltage. RAVS can monitor system voltage in real-time online, monitor voltage fluctuations and power quality of the system, and has the characteristics of high accuracy, high precision, high response speed, and high stability.

GPAS is a multifunctional and active lightning protection device that combines ground potential counterattack suppression and fault arc defense. It can significantly reduce the damage and impact of ground potential counterattack and arc faults on equipment when exposed to lightning hazards.

When a direct lightning strike occurs, the lightning rod or lightning protection network is connected, and strong lightning current flows into the ground grid. When high-voltage lines experience induced lightning overvoltage, lightning current flows into the ground grid through lightning arresters. When strong interference equipment such as welding machines work, the strong interference current generated by them will also flow into the ground grid. Strong grounding current can cause data loss, equipment misoperation, equipment tripping, insulation damage or burning in low-voltage power supply systems.

GPAS has higher reliability and shorter action time, which can effectively isolate high-frequency lightning currents, prevent lightning currents from invading the protective grounding network from the lightning protection grounding network, and effectively avoid the occurrence of safety production accidents such as fires and explosions.

The LOPS low-voltage bus overvoltage suppression device is directly connected in parallel to the bus, using technologies such as fast controllers, high-energy nonlinear resistors, overvoltage peak interceptors, and counterattack suppression. It is scientifically calculated and finely designed. LOPS fully utilizes the excellent volt ampere characteristics, huge thermal capacity, and fast response speed of overvoltage interceptors, nonlinear resistors, and counterattack suppression equipment. Generally, setting the action value of LOPS at 1.2 times the system phase voltage (customizable in special cases) can achieve good results during operation.

LOPS is directly connected in parallel to the busbar, using technologies such as fast controllers, high-energy nonlinear resistors, overvoltage peak interceptors, and counterattack suppression. It is scientifically calculated and finely designed. LOPS compensates for deficiencies such as SPD, combined overvoltage protection, and resistance capacitance absorption, completely solving the problem of overvoltage on the medium voltage main busbar.

35kV~6kV overhead lines usually install ZnO arrestors. There faults lead to tripping, line broken and black-out. 
New Lightning Protection for Overhead Transmission Line （LOPT）is Based on near cathode effect, multi-level short gap arc blowing and extinguishing technology, breaking through the voltage sensitive characteristics of ZnO arresters, utilizes the principle of multi chamber gap arc blowing and extinguishing,  special structural design to lengthen the arc path, achieving the goal of suppressing overvoltage and efficient arc extinguishing.

LOPT has advantages such as safer, more reliable, longer lifespan, and smaller maintenance. It can quickly release lightning energy, prevent lightning breakage and tripping, and has maintenance free and self-cleaning functions.

GIMS can be applied to the entire distribution network system, especially suitable for distribution rooms, control rooms, and even single equipment. The device has three main functions: firstly, by continuously monitoring various parameters such as grounding resistance, grounding current, and grounding potential of the grounding network online, it is convenient for users to timely grasp the real-time status and deterioration process of the grounding network; The second is to effectively defend against high-frequency interference in the ground grid, suppress secondary equipment interference caused by ground potential counterattacks, ground overvoltage, etc., and reduce the misoperation and measurement errors of comprehensive automation control systems and precision instruments; Thirdly, it can effectively isolate high-frequency lightning currents, prevent lightning currents from invading the protective grounding network from the lightning protection grounding network, and significantly reduce the damage and impact of ground potential counterattacks and arc faults on equipment caused by lightning hazards.

GIMS consists of a monitoring unit, a measuring unit, a ground interference suppression unit, and a ground potential counterattack suppression unit. Realize real-time online monitoring of the ground grid status, effectively suppress ground grid interference and ground potential counterattack, and achieve intelligent, data-driven, unmanned, and self-healing capabilities of the ground grid.

TOVS is a multifunctional electrical safety active defense device that combines lightning overvoltage suppression, ground potential counterattack overvoltage suppression, operation overvoltage suppression, resonance overvoltage suppression, voltage temporary rise regulation, and load interference suppression.
TOVS power interference suppression device is installed at the load to be protected and can be fixed on the wall or installed inside the distribution cabinet. Ready to install and use, without affecting the normal operation of monitoring systems such as lightning and electrical fires.
TOVS power interference suppression device is easy to debug. After the device is connected, use a multimeter to measure whether the incoming power supply is normal. After power on, the device will automatically enter the operating state, and the current indicator of the device will display the output current. When overvoltage occurs, the device actively suppresses and protects without any operation.

GDIS is suitable for key sensitive control equipment (such as DCS and PLC) in continuous production processes, effectively defending against high-frequency interference from the ground grid, suppressing secondary equipment interference caused by ground potential counterattacks, ground overvoltage, etc., and reducing misoperation and measurement errors of comprehensive automation control systems and precision instruments.

The suppression effect of GDIS is minimally affected by the impedance of the grounding grid and has little relationship with the grounding connection resistance. It mainly achieves the ultimate goal of suppressing interference through the defense and energy absorption of the ground grid interference suppressor GDIS itself.

GDIS has higher reliability and shorter action time, which can effectively isolate high-frequency lightning currents, reduce the risk of control system interference, prevent unplanned shutdowns caused by local power outages, and prevent serious disasters such as fires and explosions caused by secondary accidents.

VTIS can comprehensively protect the key factors that reduce the reliability of the secondary control power supply for circuit breakers, such as voltage fluctuations, interference, lightning overvoltage, short-term power loss, etc., which can cause the control system to fail to operate normally, thereby avoiding shutdown or damage to the primary system or equipment caused by the above reasons.

VTIS consists of a parallel oscillation control module and a series interference suppression module. The series interference suppression module operates in a long-term mode and always maintains a continuous working state. When the secondary control power supply or circuit breaker secondary circuit is subjected to multiple interferences such as lightning overvoltage, ground potential counterattack overvoltage, operation overvoltage, resonance overvoltage, voltage transient, harmonic, high-frequency interference, etc., it can effectively suppress and protect the reliable and safe operation of the secondary system.

VSAM can effectively prevent the contactor from tripping due to voltage drop/power outage caused by shaking, keeping the contactor engaged during shaking, avoiding tripping during shaking, and ensuring the normal and continuous operation of the equipment.
VSAM has convenient wiring, easy installation, simple operation, high precision, and a wide range of anti shaking time. It can be used for any type of AC220V, AC380V contactor.

VSAM anti oscillation protector can also complete the detection and synchronous tracking function of the mains voltage, achieve frequency and phase locking of the mains voltage, and can also detect the instantaneous value of the mains voltage in real time, ensuring that it switches to the inverter output of VSAM within milliseconds when the mains power fails, ensuring that the contactor and relay do not trip, and can ensure the continuous operation of the frequency converter and soft starter.
VSAM is widely used in fields such as petroleum, chemical, metallurgical, mining, power, environmental protection, municipal, and military industries.