HV Surge Arrestor

Product description:

RCH-2/800 Type Lightning Arrester Monitor 

A Characteristics 

RCH-2/800 type lightning arrester monitor is a device that in series under the arrester, and is used to monitor leakage current and records the time of arrester action. RCH-2/800 type lightning arrester monitor used on the lightning arrester in the 220kV and below power system. The operating environmental conditions are the same as the lightning arrester which is connected with. 

The lightning arrester monitor characterized figure showing count, current pointer indication and shock-resistant. 

B Structure and Capability 

The Monitor is mainly up of signal input circuit, current measuring circuit, discharge counting circuit and protection circuit. Under normal circumstances, the leakage current of arrester is directly figured out by the ammeter. The range of survey is 0- 2mA or 0-5mA. The ammeter used color scale to scale the running region of Lightning arrester leakage current respectively. It substantially convenient for users to determine the operational status of arrester, there into: 

Green: Shows that the tested leakage current is in the range of nominal operating currentn , the lightning arrester operates normally. 

Yellow: Shows that the tested leakage current is not in the range of nominal operating current, the circuitry and the lightning arrester demand to be examined or replaced. 

Red: Shows that the tested leakage current has overtopped the range of nominal operating current, the lightning arrester must be examined and replaced. 

When the leakage current overtop the survey arrange, the ultra-range indicator light shows. When the arrester acts, the counter adds up the discharge times. The counter is adapted to the three-electromagnetic, automatically return to full-scale zero, cycle counting and not cleared

Specification and Mainly Capability of the Monitor