Mining flameproof and intrinsically safe 2-loop vacuum electromagnetic starter
Main application
QJZ-2×200/1140(660)S Mining explosion-proof and intrinsically safe 2-loop vacuum electromagnetic starter (hereinafter referred to as the starter) is applicable to the coal mine underground. In the AC 50Hz voltage 1140V or 660V line, control the start and stop of mine explosion-proof three-phase asynchronous motor, which has two circuit independent control function, double circuit water level automatic control function, and double circuit joint control function. At the same time, according to the low water level, high water level, and ultra-high water level probes, 1 # circuit can realize automatic operation in the pumping process, because the water flow rises to the ultra-high water level probe, 2 # circuit can realize the double circuit simultaneous drainage function.
Technical characteristics
1. Quick opening structure
2. With local control and remote control function
3. With reliable mechanical locking and electrical locking function
Protection function
With the multiple protection functions as short circuit, overload, leakage and open-phase
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