1.1 Main purpose and scope of application
The XMG-1 series reclosing controller is specifically designed for intelligent control of switch bodies, with functions such as quick break, overcurrent three-stage, zero sequence protection, and reclosing. The controller and switch body are electrically connected through control cables and aviation connectors to achieve their protection and automatic monitoring functions. This product is widely applicable to users of 35kV transmission lines in urban and rural areas.
1.2 Environmental conditions for use
a) Altitude: 2000 meters
b) Environmental temperature: -40 ℃ -+80 ℃. The highest annual average temperature is 20 ℃. The highest daily average temperature is 30 ℃
c) Seismic resistance: Ground horizontal acceleration of 0.3g, vertical acceleration of 0.15g, continuous action of three sine waves, safety factor of 1.67
d) Maximum daily temperature difference: 25 ℃
e) Neutral point grounding method: Neutral point not grounded, neutral point grounded through arc suppression coil, neutral point grounded through low resistance
1.3 Product Quality Responsibility
Before putting the controller into operation, please read this manual carefully. Our company is not responsible for any equipment damage caused by violation of operation.

3 Functions and Features
3.1 Functions of the controller
◇ Quick break protection ◇ Overcurrent protection ◇ Triple reclosing ◇ Event recording ◇ Surge protection ◇ Three stage protection
◇ Zero sequence protection ◇ Real time clock ◇ Rear acceleration ◇ Real time status query ◇ Inverse time limit
3.2 Characteristics of the controller
◇ Acceleration function after reclosing: When the switch recloses to a permanent fault, it will accelerate the trip:
◇ Remote control closing accelerates tripping and locks for re closing: After the user inspects the circuit and sends power, if the grounding knife switch is forgotten to be removed, it should accelerate tripping:
The delay time for three reclosing cycles can be adjusted;
The tripping and closing circuit adopts anti misoperation design and has anti tripping function;
◇ Zero sequence current can distinguish faults within and outside the zone; The remote control opening and closing switch is designed to prevent misoperation;
◇ Three stage protection function, capable of independently implementing four sets of inverse time curves;
The three-stage acceleration function can be independently activated or deactivated;
3.3 Structural Features
a) The controller is a microcomputer based sewing protection and monitoring device:
b) The controller has strong weather resistance and anti condensation protection characteristics;
c) Connect to the switch body through aviation connectors
D 1 has good connection reliability and high protection level.
There are a total of 5 analog input channels for the controller, including A-phase current, B-phase current, C-phase current, zero sequence current, and single-sided voltage. The controller determines line faults by monitoring the values of the analog quantities in real time and comparing them with the fixed values, and then takes corresponding actions.