| 10kV High voltage switchboard is the most immediate equipment to supply power for customers. The operation reliability directly related to the power supply reliability and quality. In the long run, High Voltage Switchgear was influenced by electrical, thermal, chemical and abnormal conditions of the formation of insulation deterioration, easily lead to reduced strength of electrical insulation, and even failure. Practice shows that: Partial discharge is the cause that equipment insulation deterioration occurred mainly due to insulation failure. Partial discharge monitoring and evaluation of insulation condition monitoring equipment has become an important means to live more directly reflect the detection of partial discharge within the insulation condition of electrical equipment, and can be found timely and effective insulation defects in equipment to reduce unnecessary power failure power operation of the load losses and security risks, prevent accidents caused by power users to improve power supply reliability has important practical value and practical significance.Based on the analysis and summary of progress on the basis proposed for the evaluation of 10kV switchgear, insulating state to the transient voltage and ultrasonic test methods. Theoretical study of the switch cabinet through the partial discharge, transient-to-ground voltage and the principle of ultrasonic generation. 10kV switch cabinet simulation by common defects, using a variety of equipment for partial discharge detection and data analysis, research work related characteristics and performance of test equipment. Detector test a variety of experimental conditions in the same consistency of test results, And field trials with the instrument, preliminary draw all kinds of partial discharge detector positioning accuracy and the best detection method, Development of partial discharge detector for detecting charged 10kV switchgear is important to use rule...
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