|Ambient Temperature:||-45℃ To +40℃||Standard:||GB, IEC Standard,|
|Rated Voltage:||10KV 11KV 33KV||Usage:||With Surge Arrester|
|Application:||Indoor And Outdoor||MOQ:||3 Pc|
JCQ Discharge Counter Surge Arrester,
11KV Discharge Counter Surge Arrester,
33KV Discharge Counter Surge Arrester
1. JCQ Discharge Counter Surge Arrester Monitor Of Zinc Oxide Surge Arrestor
JS-8 type discharge counter (hereinafter referred to as the discharge counter) is in series lightning arrester below To record the number of lightning arrester action, JS-8 type is used in 6 KV-220 KV voltage class, JS-8 A type used in 330 KV voltage class and above the valve type lightning arrester, the using environment conditions is the same with the connected arresters. The altitude is no more than 4000 meters, the environment temperature is-40°C to +40°C.
JS-8, JS-8A Arrester Counter is composited of valves, silicon bridge rectifier, capacitors, electromagnetic counter. In the structure, it uses the transparent heat-resistant glass, sealed rubber pad, the floor flange, and other equipment for card seal; high-pressure side is drawn out from the center of bottom It enjoys the advantages of high sensitivity, the accurate and reliable records, clear and obvious display, compact structure, beautiful shape. It is easy to install and seal is reliable.
|Nominal Discharge||Nominal Discharge||2msSquare||4/10μs|
|ApplyVoltage||Current grading||Current residual pressure||Current tolerance||Impact BigCurrent||Most BigLength||Weight|
Protection of medium/ high voltage AC networks against both, multiple atmospheric and switching overvoltages as well as Very Fast Transients (VFT). Suitable for the protection of transformers, transformers in arc furnace applications, cables,generators,parallel to capacitor banks,and railway vehicles.Can be used mechanically as support insulator or as suspension insulator in case of application as line arrester. For indoor and outdoor installation.
The metal-oxide surge arrester (MOSA) is the most advanced overvoltage protector in the word.Due to make the varistor of core com-ponent mainly adopt MOSA. Compared with the conventional silicone carbide arrester, this prescription of the product improves greatly the Voltage-Current(U-I)characteristic of the metal-oxide varistor and increased through-current capability at over- voltage so as to bring a radical-changes for the characteristic of the MOSA.
Under the circumstance of normal operating voltage, the current through the MOSA just on microampere degree. When suffered from overvoltage,the MOSA's excellent non-linear characteristic will make the current through the MOSA increase to several thousand ampere,While the MOSA will be under the circulating state and release overvoltage energy so as to protecting the power transmission equipments against the damage caused by the overvoltage.
3. Usual service condition
a) Ambient air temperature within the range of -55℃ to +50℃.
b) Altitude not exceeding 2000m.
c) Frequency of the A.C. Power supply not less than 48Hz and not exceeding 62Hz.
d) Power frequency voltage applied continuously between the terminals of the arrester not exceeding its continuous operating voltage.
e) Maximum wind speed not exceeding 35m/s.
f) Earthquake intensity not exceeding 7 degrees.
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2. The lead time depend on quantity of order. Some standard type is on stock. Otherwise, it will take 3-15 days.
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4. All our activities are accredited to ISO 14001:2015 and IEC standard.
5. Technology ensure the quality satisfy international request.