Manual Operation Changeover Switch for Generator

SQ3W series automatic transfer switch is designed and developed by our company according to universal customers' requirements.

This switch uses DZ47(C45=CB2) miniature circuit breaker(improved type) as the actating element, is equipped with the new type control mechanism.

With the smallest volume among the similar products, it also has the functions like the fire control and power generation, and it is specially usded in the important power supply locations where the power failure is not allowed.

SQ3W series automatic transfer switch can adopt the manual operation mode, when the manual operation is used, the manual/auto button is set in the "manual" position, when the handle is rotated clockwise to the terminal, thus, the reserve power actuating breaker QR is switched off, and the normal power actuating breaker QN is switched on.

On the contray, when the handle is rotated CCW to the terminal, the reserve power actuating breaker QR is switched on, and the normal power actuating breaker QN is switched off. The panel power indicating lamp (yellow) indicates the working voltage of automatic controller, if this lamp is not bringhtened, this means the working power of automatic controller has the failure, and the switch should not be operated.

After it is recovered, the manual/auto button should be set to the automatic position, if the normal power is in the mormal state,the normal power actuating breaker QN will be in the ON state, thus, the panrl N power indicating lamp(green) is bringhtened; if the normal power is abnormal, the normal power actuating breaker QN will be in the OFF state, and reserve power actuating breaker QR will be in the ON state, thus, the panel R power indicating lamp(green) is brightened.

Industrial
1.Continuous production line
2.Ship engine room
4.Vital area of thermopower station
5.Generator power transfer switch ATS switch

Facility
1.Port and railway system
2.Highway lighting system
3.Control system in troops post place
4.Effective electric energy management
5.Load shield
6.Mormalization

The altitude of installation site should not exceed 2000m, it should be used indoors;

The installation site should be free of strenuous vibration or impact, no corrosion affecting the electric elecments, DC automatic transfer switch ;

If beyond the abovementioned conditions, please negotiate with the manufacturer when placing the order;

If the switch is intended for offshore oil or nuclear power station, shall enter into an additional technical agreement.