Mine Explosion-proof watt-hour meter box
分类: Explosion Proof Instrument  发布时间: 2013-09-14 15:24 

Mine Explosion-proof watt-hour meter box
Other Names:Mine Explosion-proof Switch
1.Applied to underground coal mine 2.High quality 3.With EX and MA certifications

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