ZQ1-63 automatic transfer switch is suitable for dual power supply system with AC current of 50/60HZ, rated voltage of 400V and rated current of 6A-63A. The switch can automatically change the common power supply and standby power supply without manual operation, so as to ensure the continuity and reliability of power supply.
The main switch device consists of forward and reverse motors, circuit breakers, mechanical interlocks and controllers.
This product is suitable for Class 1 combined force system, high-rise building, residential quarters, military equipment, hospitals, airports, communications, fire fighting and other important places where power failure is not allowed, and the products meet GB/14048.11 standard
The control part carries out wired detection on each phase voltage of common power supply at the same time. When the power supply voltage is lower than 80% of the rated voltage or higher than 110% of the rated voltage, the controller sends the detection result directly to the controller after comparison and judgment, and sends a conversion instruction to the operating mechanism of the circuit.
Automatic switching switch control function table | ||
Common power supply | emergency power supply | control function |
normal | normal | Q2 break-brake, Q1 break-brake, common power supply. |
abnormal | normal | Q1, Q2, standby power supply. |
Back to normal | normal | Q2 break-brake, Q1 break-brake, restore common power supply. |
Note: Q1 is the breaker of common power supply and Q2 is the breaker of standby power supply.