Mine Explosion-proof watt-hour meter box

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Mine Explosion-proof watt-hour meter box Product Introduction The watt-hour meter box is composed of the explosion-proof joint box and shell.It's equipped with the three-phase three-wire active(reactive) watt-hour meter,current transformer and voltage transformer and so on. The watt-hour meter box is mainly used to calculate active or reactive electric power energy in the AC power system,with the frequency of 50Hz,current of 200A or 400A,and voltage of 380V or 660V in the coal mine well or other industrial enterprises,with the surrounding medium containing explosive gases(methane). Main Parameter Model Rated voltage(V) Voltage transformer ratio Rated current(A) Current transformer ratio Input current cable OD,φmm DBB-200/660(380)S 380/660 (380/660)100 200 200/5 56-63 DBB-400/660(380)S 400 400/5

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Shandong China Coal Industry & Mining Group

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