Coal Mine Explosion-proof Dual Power vacuum ventilator electromagnetic starter

Purposes

QBZ-2×120(80)/1140(660.380)ASF Mining Explosion-proof Dual Power vacuum ventilator electromagnetic starter is ideal for use in AC 50Hz, 1140V, 660V or 380V power supply system in coal mines for automatic switching of double-power-supply and double-blower to realize that the two power supplies work together, and to ensure both working blower and standby blower are available for switching in operation, in order to a long-period ventilation in mines. Therefore, it is an ideal ventilation and power supply equipment for coal mines, especially for mines with high concentration of gases.
Technical Features
1. Two independent power supplies and two independent explosion-proof chambers;
2. Double-channel indication of power supply working, stop and  examination;
3. All Chinese display for real-time display of system parameters such as 3-phase current,  3-phase  voltage, active power, reactive power, insulation resistance, electricity quan  tity and closing  times etc;
4. Setting drop-down menu, with parameters for amending the whole function, the parameters of the starting accurate tuning amendments, step 1;
5. Protective functions of overload, short-circuit, phase loss, current leakage, undervoltage and overvoltage etc;
6. Switching time: 0~10s adjustable;
7. Protective function of gas, wind and electricity interlocking;
8.Function of faults searching and faults recording;
9.It is attached in KJ254 mine electric power automatic con trol and comprehensive measurement and monitor system to realize telemetry, telecommunication, remote control and remote regulation.

Parameters