| Product name: | JS-8 discharge counter | ||||||
| specification: | ![]() |
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| Category: | High voltage electrical appliances -- Discharge counter | ||||||
| Price: | factory price | ||||||
| Brand: | Shanghai | ||||||
| Place of Origin: | China | ||||||
| Available Quantity: | batch | ||||||
| delivery cycle: | Spot goods (or inquire by telephone) | ||||||
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The JS-8 discharge counter is suitable for various types of silicon carbide lightning arresters with voltage levels of 330KV and below, and is used under the same environmental conditions as the connected lightning arrester. This series of products uses high-temperature silicon carbide valve plates, which have the characteristics of large flow capacity, wide adaptability to voltage levels, and accurate and reliable action counting. The JS-8 discharge counter is a single pointer ten digit cyclic counting indicator; The JS-8S model is a dual pointer hundred digit cyclic counting indicator with counting carry function. It can count continuously for 100 times before entering the next counting cycle. It is suitable for use in areas with frequent lightning arrester actions and unmanned places. The JS series discharge counter is enclosed in a transparent heat-resistant glass cover.
The JS-8 discharge counter is suitable for the following environmental conditions:
1. Altitude not exceeding 2000 meters;
2. The ambient temperature ranges from -40 ℃ to+50 ℃;
3. Not suitable for gas environments with severe corrosion of metals and insulation components, as well as places with severe pollution and severe vibration.
All performance indicators of the discharge counter product comply with the national machinery industry standard JB2440-91 "Discharge Counter for Lightning Arresters".
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Product Model |
JS-8 10/600 JS-8S 10/600 |
JS-8 10/1000 JS-8S 10/1000 |
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performance metrics | ||
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Applicable power system rated voltage range (effective value) |
10~110 KV |
10~220 KV |
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Nominal discharge current 8/20uS (peak) |
10KA |
10KA |
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Lower limit operating current 8/20uS (peak) |
50A |
50A |
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Residual voltage at nominal discharge current (peak) |
≤1.1 kV |
≤1.5 kV |
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Square wave current withstand capacity 2000uS (peak) |
600A |
1000A |
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High current impulse withstand capability 4/10uS (peak) |
100KA |
100KA |
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Product weight |
2.9kg |
3kg |
JS-8 discharge counter