QBZ-120/660(380)(II) Mining Explosion-evidence CZPTter/ Vacuum Electromagnetic CZPTter
This series mining explosion-evidence kind vacuum electromagnetic starter is applicable in AC 50Hz distribution technique of 3-phase indirect neutral-point earthing with rated voltage of 1140, 660V or 380V in underground coal mines with explosive and unsafe gasoline (methane) and coal dust, it is utilised to handle direct start off, end and reversal of three-section squirrel-cage asynchronous motor with rated existing of 200A, 120A, 80A. Meanwhile, it also dose safety to motor and relative circuit.
It adopts dialing and lever blended and placing, which can modify and established rated present
Numerous protecting capabilities like overload, brief circuit, below voltage, in excess of voltage, decline of period, leakage lockout, period unbalance and so on.