overview

Two stage protection, high breaking capacity, small size, easy installation.

Grid grid (day type) and grid generator (F-type) are designed to meet the needs of each, and are compatible with both automatic and manual modes.

Undervoltage, overvoltage, phase failure, overload, short circuit protection, with fire remote interface, communication interface, fully functional.

You can choose between integrated and split styles.

The operating parameters can be adjusted, and the LCD displays a full Chinese menu for operation.

Rated voltage 400V, rated current 10A-1250A.

Model Meaning

Purpose and usage environment

The KGQ2Y series intelligent self-protection dual power conversion switch (hereinafter referred to as the switch) is suitable for AC 50Hz, rated working voltage 400V, rated working current 16A-2000A. It is used for the mutual phase conversion between the two power sources of the emergency power supply system, the common power source (N) and the backup power source (R) (can also be set manually), and as a control circuit switch for control, signal, interlocking and other purposes. This product has a communication port in some models, which can achieve remote control and allow users to realize unmanned substations. Suitable for residential communities, military facilities, hospitals, shopping malls, airports, and other places.

Performance characteristics

The KGQ2Y series dual power automatic transfer switch has complete detection and protection functions. It uses a high-speed single-chip embedded microprocessor as the main control chip to detect the power supply status in real time, ensuring the reliable operation of the power supply system.

1. It has dual protection functions of mechanical interlocking and electrical interlocking to prevent two circuit breakers from closing simultaneously.

2. It has six control operation methods: "manual control", "self switching and self recovery", "common power supply", "backup power supply", "power-off and then deduction", and "self switching but not self recovery".

3. It has undervoltage, overvoltage, and phase loss protection functions to prevent the faulty power supply from supplying power to the load.

4. It has alarm or indication functions for power failure, circuit breaker tripping and other faults.

5. It has the function of preventing secondary reclosing: (i.e. the load side short circuit, overload, and automatic closing (tripping) of the circuit breaker cannot be automatically closed by itself).

6. It has adjustable operating parameter values (undervoltage value, overvoltage value, opening delay value,=closing delay value), and the LCD displays two phase voltages simultaneously; Full Chinese menu operation, convenient for users to query in real-time.

7. With a fire interface, in emergency situations, as long as the fire control DC24V (control voltage selected by the user) is connected, this controller will immediately input control contacts to quickly cut off the relevant circuit.

8. Equipped with RS485 and RS232C serial communication interfaces, using MODEBUS communication protocol.

Main technical parameters

Electrical level: CB level (i.e. the main contact of the circuit breaker can connect and disconnect short-circuit current and is equipped with an overcurrent release);

Usage category: AC-33B (typical use: motor load, resistor, and incandescent lamp load below 30%).

Rated working voltage: line voltage~400V,

Rated frequency: 50Hz;

Under voltage protection setting range value: adjustable from 150V to 180V; Level difference 1V, factory set value 150V.

Under voltage restored to normal value: under voltage value+25V.

Overvoltage protection setting range value: adjustable from 240V to 280V; Level difference 1V, factory set value 280V.

Overvoltage restored to normal value: Overvoltage value -10V.

Opening delay time: adjustable from 1.2 to 60 seconds; The difference is 1s, and the factory set value is 1.2s (1.2s displays 12, 60s displays 600).

Closing delay time: adjustable from 1.2 to 60 seconds, with a step difference of 1 second. The factory set value is 1.2 seconds (12 displayed for 1.2 seconds and 600 displayed for 60 seconds).

Generator start-up delay time: 10 seconds.

Voltage meter display accuracy: Level 2.5.

Note: The undervoltage value, overvoltage value, and each phase supply voltage display are the voltages between the phases and the neutral line.

Intelligent wiring diagram

Exterior installation dimensions

Controller installation hole size: 85 × 105

Note: The LCD displays the abbreviation for self switching and self resetting (self resetting), and the abbreviation for self switching but not self resetting (non self resetting). "SF01" cannot be changed (double split time).