Surge Monitor JCQ
JCQ Type Surge Monitor is connected to the bottom of surge arrester in serial. It is applicable to ZnO surge arrester with voltage≤ 500kV for monitoring leakage current and record operation times.
Description
JCQ
JCQ Type Surge Monitor is connected to the bottom of surge arrester in serial. It is applicable to ZnO surge arrester with voltage≤ 500kV for monitoring leakage current and record operation times.
Surge monitor is made up of metal oxide element, silicon bridge type rectifier, capacitor, electromagnetic counter. It takes advantage of the surge arrester’s energy (Impulse current and power frequency current) to fetch the voltage on metal oxide element (non linear resistance), then it charges the capacitor in one way direction through silicon bridge type rectifier, makes the coils of electromagnetic counter discharge with form of DC power to move the counter.
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