Dual Power Automatic Transfer Switch Jgq3-100

I. Overview

 The JGQ3 series dual power automatic transfer switch (ATSE) integrates the switch and logic control into one unit and requires no external controller, making it a truly mechatronic automatic transfer switch. It is suitable for power distribution equipment in industrial enterprises with AC 50Hz, rated voltage up to 440V, and a conventional thermal current of 100A. It provides functions such as voltage detection, frequency detection, a communication interface, and electrical and mechanical interlocking, and supports fully automatic operation, remote control, forced "0" position, and emergency manual operation. It is widely used for automatic transfer between the main power supply and the backup power supply in power supply systems, as well as for automatic transfer and safe isolation between two load devices. The switch is managed by various logic commands issued by the control circuit board to drive the motor, and the motor drives the operating mechanism of the switch body to quickly make and break the circuit or perform power transfer, achieving safe isolation through a clearly visible status.

II. Model Description

III. Structural Description

1. Electrical button: Controls the power supply of the switch's internal control circuit. When the electrical button is set to automatic, the switch can perform fully automatic,

remote control, and forced "0" operations. When the electrical button is set to manual, the switch can only be operated manually.

2. Operating handle: When operating manually with the operating handle, the electrical button must be in the manual state.

3. Mechanism padlock: For maintenance only, that is, first use the operating handle to place the switch in the "0" position, then lock the padlock mechanism

padlock before maintenance can be performed (when the padlock is engaged, the internal control power supply of the switch is cut off, the switch cannot operate automatically, and manual

operation cannot be performed).

4. Indicator: indicates the operating status position of the switch (I, O, II)

IV. Main Technical Parameters

1. Switch compliance: IEC947-6-1, GB14048.11

2. Rated operating voltage (Ue): AC415V

3. Rated making capacity (A Rms): 10Ie

4. Rated breaking capacity (A Rms): 8Ie

5. Rated thermal current: 100A

6. Rated insulation voltage: 750V

7. Rated impulse withstand voltage: 8kV

8. Rated operating current: 100A

9. Rated short-circuit current: 7kA

10. Rated limiting current: 100kA

11. Conversion time: 10S

V. Wiring Diagram

6. Instructions for Use

1. Fully automatic function: When the normal power supply fails, the switch automatically transfers to the backup power supply; when the backup power supply returns to normal,

the switch automatically transfers back to the backup power supply.

2. Forced “0” Function: Activate the forced “0” button, and the switch will cut off both power supplies.

3. Remote Control Function: This refers to remote control. Press the “I” position button, and the normal power supply will operate; press the “II” position button.

button, the backup power supply operates; press the "0" position button to cut off both power supplies.

4. Please select the switch function as needed and wire it according to the corresponding function.

5. When ordering, please specify the switch model, current specification, and required functions.