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According to the real condition of the substation inspection robot provided a vision-based navigation control method for substation inspection robot can be run in the complex road environment, with strong anti-interference, implementation of simple, good stability and high precision in this paper. Reasonably plan the inspection paths, enabling robot to full check each device in substation. Robots...
Transient enclosure voltage (TEV) is a special case of very fast transient over-voltages, which generate during switching of disconnector in gas insulated substation (GIS). It would cause insulation problems such as spark discharge between the flanges, and interference to secondary equipment due to high-frequency electromagnetic radiation. Many studies have been done to investigate TEV above 420kV,...
Partial discharge (PD) monitoring plays an important role in the online maintenance of the gas insulated switchgear (GIS). In recent years, the ultra high frequency (UHF) method for PD detection arouses great interest of many researchers because of the high sensitivity and anti-interference capability. The coupling of UHF signal is the key to the detection of partial discharge in GIS. The structure...
Synchronously closing can avoid surge current and overvoltage on the parallel capacitor. There will be more meaningful to 550 kV than lower voltage capacitor because the insulation requirements are relatively higher in 550 kV situations. Circuit breaker's synchronous operation and synchronously closing controller (SCC) can be a key part to the modern substation intellectualization and automation system...
Synchronous circuit breaker can close or open the circuit at some designated phase of the voltage or current to avoid serious transient overvoltage and surge current in power system. Synchronous circuit breaker can significantly improve the intelligent and automatic level of a substation. Rate of decrease dielectric strength (RDDS) and operation time stability are the first important parameters to...
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