Using And Maintains Of Zinc Oxide Arrester In Electrical Power System

The thunder stroke is electrical power system's significant natural disaster. The thunder stroke causes the accident occupies total accident's half, Is big to electrical power system's influence, Serious influence power supply security and reliability. Therefore the electric power department implements each countermeasure to reduce the thunder stroke accident vigorously, the arrester is protects the generating plant and the line necessary and the important installment, the arrester function is when the thunder stroke, prevents the striking potential and the electric current damage the line which and the equipment protects, not only if its function abnormal or the damage is unable to protect the line and the equipment, even itself will also cause the electric power accident, what will be most common will be creates the earth fault or the detonation. Therefore, how to maintain the arrester the normal work, carries on the examination and the monitor to it, discovers its breakdown ahead of time, with the aim of guarding against in not however, is topic which this time must study, this depends on the good maintenance and the online monitorBecause electrical power system arrester quantity is huge, the pattern is many, and the system may cut power the time is short, cuts power the maintenance cycle under the limited manpower to be very difficult to reduce, therefore, the feasible measure strengthens the online monitor, knew in advance that the arrester the breakdown, the traditional arrester's online monitor can only by the field installation electric discharge counter, reveal the ampere meter and sensing part or the portable ampere meter measures it, and must depending on the artificial read analysis, its work slow efficiency not high and easy to have the miscarriage of justice, the result is limited .Recent years utilized the new technological progress the online monitor technology, but promoted the online monitor efficiency and the precision largely and might make the trend analysis, judged the arrester the function guard in not however, the present paper will reorganize the arrester performance introduction tradition and the monitoring method, then pointed out the example reference in view of the zinc oxide online test technology...