DARUI Electric recommends GIS/GCB and switchgear, power cabinets, communication cabinets internal partial discharge fault detection
There are more and more internal partial discharge faults in GIS/GCB and switchgear in power plants and substations of power supply bureaus, and there is an urgent need for appropriate detection methods for predictive maintenance and alarm.Electrical Equipment Partial Discharge Patrol Tester comes at the right time. The insulation medium of GIS/GCB is different, and the propagation speed of internal and external partial discharge is also different. Detection methods either use chromatography or electrical measurement, which are not only troublesome and dangerous, but also expensive and cannot perform real-time detection. Electrical operation and maintenance personnel urgently need a detection method that is simple to operate, reasonably priced, and safe to operate for spring inspection, autumn inspection, and routine predictive maintenance. The Electrical Equipment Partial Discharge Patrol Tester can fully meet this need.
Definition
GIS Partial Discharge Detector is the main instrument for detecting GIS partial discharge in modern industry. Ultrasound is a sound that cannot be heard by the human ear; in other words, frequencies above 20KHz are beyond the range of human hearing. It is precisely because of this characteristic of ultrasound that this physical property is used for cross-technical diagnosis of equipment status, ensuring the correct trend and management of condition-based maintenance.
Application
Finding faults in GIS switch operating mechanisms to prevent switch refusal and misoperation accidents
GIS is the most important switchgear in the power system. Whether the switches inside GIS can operate correctly is a key factor in the safe operation of the power grid. High-voltage GIS switch operations are mostly driven by hydraulic or compressed air systems. To ensure the normal operation of the hydraulic and pneumatic drive systems, the motor must be started periodically to pressurize and confirm the reliability of the system's performance. However, due to defects caused by equipment manufacturers' manufacturing processes, installation processes, or improper operation and maintenance, or even compressor damage, incidents of slowed drive speed or failure are increasing, seriously threatening the stable operation of the power grid, directly affecting people's lives and production, with severe social consequences. The Electrical Equipment Partial Discharge Patrol Tester, using advanced ultrasonic principles and exquisite sensing technology, can vividly detect internal leaks in hydraulic and pneumatic systems, identify drive faults in advance, and inform operation and maintenance personnel through digital and audible means to eliminate defects, ensuring the safe operation of GIS.
Note: The above information and technical parameters are compiled and published by Yangzhou DARUI Electric Co., Ltd.!
