Faulty Insulator On-line Monitoring System Based Non-touching UV Pulse Method
He Wei · Gao dianya jishu · 2006
Today, methods of insulator contamination detection include leak current method, corona pulse current method etc. But both of the two methods must use a detector contacting with the insulator. Some of the other detecting methods are not on-line monitoring method, so their application is limited. This article proposes a new method of insulator contamination on-line monitoring based on UV pulse detecting. This method relies on the relationship of insulator contamination and discharge pulse. It is making use of the characteristic of UV pulse radiated by the insulator surface discharge. To prove this method, some experiments are done to detect 110 kV line insulators' surface discharges with our on-line monitoring system. the insulator contamination station can be monitored by detecting the UV pulse of insulator surface discharge. This method does not need to contact with the insulator, and it can work at a good distance.