Automatic Three-Phase Capacitance and Inductance Tester
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The power sector is paying increasing attention to power quality issues, and reactive power compensation complete sets of devices have been widely put into distribution network operation. Among these, power capacitors are important equipment for the stable operation of the power system. Reactive power compensation devices should meet the requirements of automatic tracking and real-time compensation, which inevitably leads to frequent switching of compensation capacitor banks. This can cause overcurrent and overvoltage impacts, and after long-term operation, it may lead to insufficient capacitance or even damage to the capacitors, affecting the stable operation of the power grid.
Power quality problems are mainly caused by the terminal load side, among which impact reactive loads can cause severe voltage fluctuations in the power grid, reduce power supply quality, and result in low power factor operation of the grid. With the development of power electronics technology, it not only brings energy saving and energy conversion benefits to modern industry, but also the widespread application of power electronic devices in various industries has brought new and more serious damage to power quality, becoming the main source of harmonic pollution in the power grid.
In order to avoid this situation, detect capacitor defects early, ensure reliable operation of equipment, and prevent fault expansion, it is necessary to regularly test capacitor banks. In the field, capacitors are usually connected in parallel in groups. The traditional method is to remove the capacitor busbar and then measure with a traditional capacitance meter. The workload of disconnecting wires to measure capacitance is heavy, and frequent disconnection can cause screws to slip or not be tightened, leaving safety hazards, and also easily cause secondary damage to the capacitors.
In response to the actual situation on site, Wugao Electric Measurement has developed a new type of automatic capacitance and inductance tester in a timely manner. This instrument internally synthesizes a three-phase AC test source, and can directly measure the single-phase capacitance of parallel capacitor banks or three-phase capacitors in various combined connection types without disconnecting wires. It can also measure the inductance of various reactors. The wiring is simple, and testing and recording are convenient, greatly improving work efficiency. It uses a large-screen color LCD as the display window, with menu operation and Chinese prompts, integrating multiple parameters on one screen. The human-machine interface is friendly, and it is simple and fast to use, making it the preferred product for power users at all levels.
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
