JCQF2-C series lightning arrester monitorDetailed product description：

The JCQF2-C lightning arrester monitor is a device that works in series below the lightning arrester to record the number of lightning arrester actions and monitor the leakage current of the lightning arrester. Suitable for various types of zinc oxide lightning arresters with voltage levels of 330KV and below, using the same environmental conditions as the connected lightning arrester. The JCQF2-C series products are enclosed in a stainless steel shell and have an output alarm contact interface, which makes it easy to remotely monitor the condition of lightning arresters; It mainly consists of a stainless steel shell, insulated porcelain sleeve, sealing gasket, high-power zinc oxide valve plate, rectifier, double pointer electromagnetic counter, current measurement circuit and alarm circuit, protection circuit, etc. The main features are that the appearance packaging adopts a fully corrosion-resistant metal or stainless steel anti-corrosion square structure, a large window, dual pointer hundred digit cyclic counting indication, prominent counting indication, accurate leakage current monitoring, overload protection with alarm indication, and the product is resistant to vibration to ensure its service life.  

Under normal use, the number of actions of the lightning arrester is indicated by a dual pointer electromagnetic counter with counting and carrying functions. The counting indication is clear and eye-catching, and it automatically returns to zero when the hundred digit is full, continuing to cycle and accumulate counting work without resetting. The leakage current of the lightning arrester is directly reflected by the pointer ammeter through the current measurement circuit. The measurement indication range is 0-3 milliamps. When the leakage current approaches or exceeds the current alarm value set by the monitor, the alarm indicator light changes from white to red and sends out an alarm indication.

The performance indicators of the monitor comply with the national mechanical industry standards JB/T 2440-1991 "Discharge Counting Devices for Surge Arresters", JB/T 10492-2004 "Monitor for AC gapless Metal Oxide Surge Arresters", and GB/T7676.1-1998 "Pointer Electrical Instruments".

Product Model	JCQF2-C-A	JCQF2-C-B
performance metrics
Applicable power system rated voltage range (effective value)	35～220KV	35～330KV
Nominal counting current 8/20KA (peak)	10KA	10KA
Lower limit counting current 8/20A (peak)	50A	50A
Residual voltage (peak value)	≤1.5KV	≤1.5KV
Square wave impulse current 2000A (peak)	800A	1200A
Impulse high current 4/10KA (peak)	65KA	100KA
Current measurement range and indication error (ACA)	AC 0～3mA±%5	AC 0～3mA±%5
Output alarm contact parameters	DC 28V/1A 　AC 115V/0.25A	DC 28V/1A 　AC 115V/0.25A
Product weight	1.5kg	1.6kg

JCQF2-C series lightning arrester monitor