Arrester discharge counter model and function

Arrester discharge counter principle and structure

In the structure of transparent heat-resistant glass cover, Dengrui Electric also introduced a new product, using a stainless steel shell, sealed rubber mats, bottom plate and flange, etc. for the card seal; high-pressure outlet terminal from the center of the bottom plate leads. Therefore, it has the advantages of high sensitivity, accurate and reliable count, clear and obvious display, light weight, beautiful appearance, easy installation and use, and reliable sealing. The performance of the discharge counter complies with the requirements of JB2440-78 "Technical Conditions for Electrical Counters" of the Ministry of Machinery. Arrester discharge counter principle : discharge register in the waveform 8/20 microseconds, amplitude: JS-8 arrester discharge counter is 100 ~ 5000 ampere, JS-8A type is 100 ampere ~ 10000 ampere impulse current and half frequency of labor frequency 0.01 seconds, under the combined action of 10A - 450A (peak) freewheeling (with the same polarity or different polarity), can accurately and reliably operate more than 20 times

Arrester discharge counter model and function

The JS-8 discharge counter is connected in series under the arrester. Discharge counter picture can be read http://?class_id=5

The discharge counter is a device used to record the number of arrester actions. The JS-8 discharge counter is used for voltages ranging from 6 kV to 20 kV. The environmental conditions of use are the same as those of the arrester connected. The altitude does not exceed 2000 meters and the ambient temperature is -40 °C to +40 °C . The arrester discharge counter is not suitable for gases with severe corrosion of metals and insulating parts, where there are severe five-pollution defects and where there is severe vibration.

Arrester discharge counter and its application

Under normal operating voltage, the leakage current through the counter is very small and the counter does not act. When the lightning arrester passes thunderwave, operating wave and power frequency over-voltage, a strong working current passes through the non-linear resistance of the counter, after DC conversion, the electromagnetic coil is discharged and the counter is once instigated, and the arrester discharge counter action tester is used ( AC and DC) measurements to implement a device for measuring the number of arrester actions.

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