GQ2N-100A/4 functional features

7、 Dual power automatic transfer switch function

★ The logic control board manages the motor and gearbox directly installed in the switch with different logics to ensure the position of the switch.

★ The motor is a polyvinyl chloride rubber insulated wet heat type motor equipped with a safety device, which trips when the humidity and overcurrent exceed 110 ℃. Automatically put into operation after the fault disappears, reversible reduction gear

Adopting spur gears

There is a reliable mechanical interlocking device and electrical interlocking protection between the two circuit breakers, which eliminates the possibility of both circuit breakers closing simultaneously.

The intelligent controller adopts a microcontroller as the control core, with simple hardware, * functions, easy expansion, and high reliability.

★ It has short-circuit and overload protection functions, automatic switching functions for overvoltage, undervoltage, and phase loss, and intelligent alarm functions.

The automatic conversion parameters can be freely set externally.

★ Equipped with intelligent protection function for motor operation.

This device is equipped with a fire control circuit. When the fire control center sends a control signal to the intelligent controller, both circuit breakers enter the open state.

★ There is a computer networking interface reserved for implementing remote control, remote adjustment, remote signaling, telemetry and other four remote functions.

★ Equipped with a generator start signal function, the ATS controller sends a start signal to automatically start the generator when the common power supply is abnormal.

8、 Application scope of dual power automatic transfer switch

The dual power automatic transfer switch (abbreviated as A.T.S) is suitable for emergency power supply systems with a rated working voltage of 240/415V and a frequency of 50/60Hz.

When a power supply fails, it can automatically switch between the common power supply and the backup power supply without manual operation to ensure the reliability of power supply for important users. It is mainly used for

In important places such as hospitals, shopping malls, banks, civil defense, chemical engineering, metallurgy, high-rise buildings, military facilities, and fire protection where power outages are not allowed. This product complies with IEC60947-6-1

GB/T14048.11 (Automatic Switching Electrical Appliances) standard also complies with (Fire Protection Regulations for High rise Civil Buildings), (Code for Fire Protection Design of Buildings), (Guidelines for Emergency Lighting Design), and (Electrical Equipment for Civil Buildings)

Calculation standards, etc.

9、 Dual power automatic transfer switch control function/working mode

1) Automatic.

When the user sets the automatic function, the switching of the automatic transfer switch is automatically controlled by the controller based on the fault condition.

Power grid and generator: i.e. (F2) mode, when the automatic transfer switch is used for the power grid and generator system, the controller switches between the two power sources of the power grid and generator. In the event of a power grid failure

Send a passive electric shock signal (output through a set of normally open and normally closed contacts) to start the generator system. When the generator's generated voltage reaches the rated requirement, the controller will convert it. As for the system

Capacity can be configured by the user themselves, and partial load can be removed first to avoid dragging failure; After the power grid returns to normal, the automatic transfer switch will automatically switch to the power grid

Source power supply.

2) Manual.

When in manual mode, users can manipulate the buttons on the controller panel as needed to switch the toggle switch. There are three positions to choose from: the common power position and the backup power position

Set and double split positions.

10、 Operating procedures for dual power automatic transfer switch

1. When there is a power outage due to unforeseen circumstances and power cannot be restored in a short period of time, the backup power source must be activated. Steps:

① Cut off all circuit breakers of the mains power supply (including circuit breakers in the control cabinet of the distribution room and the mains power supply circuit breaker in the dual power switch box), open the double throw anti reverse switch to the side of the self provided power supply, and keep the dual power supply cut off

The self-contained power supply circuit breaker inside the replacement box is in the disconnected state.

② Start the standby power supply (diesel generator set), and when the standby set is running normally, sequentially close the generator air switch and all circuit breakers in the self-contained power control cabinet.

③ Close each backup power circuit breaker in the power switch box one by one to supply power to each load.

④ During the operation of the backup power supply, the operator on duty must not leave the generator set and adjust the voltage, plant frequency, etc. in a timely manner according to changes in load. Any abnormalities found should be dealt with promptly.

2. When the mains power supply is restored, the power conversion work should be done in a timely manner, the backup power supply should be cut off, and the mains power supply should be restored.

Steps:

① Disconnect each circuit breaker of the self-contained power supply one by one in the following order: dual power switch box self-contained power supply circuit breaker → self-contained power distribution cabinet circuit breakers → generator main switch → turn on the double switch

To the side of the mains power supply.

② Stop the diesel engine according to the shutdown steps.

③ In order, close each circuit breaker one by one from the mains power supply main switch to each branch switch, and place the dual power switch box from the mains power supply circuit breaker in the closed position

.