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Make Power Use Safer And More Efficient For Enterprises
Fast-acting vacuum circuit breaker
During a short-circuit fault: the fast‑acting vacuum circuit breaker rapidly discharges the energy stored in its energy‑storage capacitor, and the electromagnetic repulsive force generated by eddy currents directly actuates the breaker to achieve rapid opening. It can detect a short-circuit fault within 2 ms and complete opening within 4 ms of receiving the command, enabling it to interrupt the fault during the initial phase of the short-circuit current, thereby preventing overreaching tripping of upstream switches. The trip‑current threshold is customizable.
In the absence of a fault: the fast‑acting vacuum circuit breaker is fully compatible with conventional medium‑voltage circuit breakers in terms of operating procedures, physical dimensions, and wiring configurations.
It can detect a short-circuit fault within 2 ms and complete opening within 4 ms of receiving the command, allowing it to interrupt the fault during the first peak of the short-circuit current and preventing overreaching tripping of upstream switches. The trip‑current threshold is also configurable.
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Output AC reactor: Used for smoothing and filtering, reducing transient voltage dv/dt, extending motor life, lowering motor noise, minimizing eddy current losses, decreasing leakage currents caused by high-order output harmonics, and protecting the power switching devices inside the inverter.
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Power Quality Online Monitoring Device
The PM600 (S/M/Q) online power quality monitoring device is specifically designed for monitoring the power quality of “Class I loads.” The MP600 (S/M/Q) features high accuracy, excellent stability, a compact footprint, and easy installation, with accuracy fully compliant with the IEC 61000‑4‑30 Class A standard.
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Four-quadrant reactive power compensation controller for photovoltaic systems
The MCGD‑G can monitor reactive power and voltage fluctuations in the grid in real time. By adjusting the reactive power output of the photovoltaic system, it achieves reactive power compensation, thereby enhancing grid stability and power quality. At the same time, it intelligently regulates the active power output of the photovoltaic system based on solar irradiance conditions and grid demand, enabling maximum power point tracking and optimized energy utilization.
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The APFGD/SVGGD device is a novel power electronic system designed to address power quality issues, employing an external current transformer to continuously monitor the load current in the grid.
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Wall-Mounted Active Power Filter Compensation Module
The active filtering compensation module is a modular product specially developed by Guangda Electric for dynamic harmonic mitigation in 0.4 kV power supply systems. Connected in parallel with the grid, it uses an external current transformer to continuously monitor the load current. Leveraging DSP, FPGA, and CPLD chips, along with cutting-edge rapid harmonic mitigation and reactive power extraction technologies, it swiftly analyzes the harmonic and reactive components of the load current. Based on user-defined setpoints, it generates PWM pulses to drive a bidirectional converter composed of three-level IGBT modules, thereby producing compensation currents that meet grid requirements. This enables dynamic, precise compensation of harmonic and reactive currents, ultimately enhancing power quality.
Active modular power quality products comprise three types of modules: Static Var Generators (SVG), Three-Phase Unbalance Controllers (ASVG), and Active Power Filters (APF).
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Horizontal Active Power Filter Compensation Module
The active filtering and compensation module is a specialized product developed by Guangda Electric for dynamic harmonic mitigation in 0.4 kV power supply systems. Connected in parallel with the grid, it uses an external current transformer to continuously monitor the load current. Leveraging DSP, FPGA, and CPLD chips, combined with state-of-the-art fast harmonic mitigation and reactive power compensation technologies, it rapidly analyzes the harmonic and reactive components of the load current. Based on user-defined setpoints, it generates PWM pulses to drive a bidirectional converter composed of three-level IGBT modules, thereby producing compensation currents that meet grid requirements. This enables precise, real-time compensation of harmonic and reactive currents, ultimately enhancing power quality.
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Intelligent Insulation Monitoring Device
The JYGD-01 online insulation monitoring device can continuously monitor the insulation condition of high- and low-voltage equipment. Its application provides valuable information for diagnosing early defects and potential hazards in line cables, insulators, surge arresters, vacuum switches, and other equipment; it helps prevent sudden insulation failures and enables effective monitoring of the insulation performance of electrical equipment, thereby directly contributing to the safe and reliable operation of such devices.
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Guangdong Guangda Electric Co. Ltd.
Tel：18028173868
E-mail：gdgddq@126.com
Web：www.gd96.com
Add ：Building 3, No. 613, Xingtan Shuixiang Avenue, Gaozan Village, Xingtan Town, Shunde District, Foshan City, Guangdong Province