Product Overview

The XMG-1 series reclosing controller is specially designed for the intelligent control of the switch body, with quick-break, overcurrent three-stage, zero-sequence protection and reclosing functions. The controller is electrically connected to the switch body through the control cable and aerial connectors to achieve its protection and automatic monitoring functions. The product is widely used in urban and rural 35kV transmission line users.

Technical specifications

Main application and scope of application

The XMG-1 series reclosing controller is specially designed for the intelligent control of the switch body, with quick-break, three-stage overcurrent, zero-sequence protection and reclosing functions. The controller is electrically connected to the switch body through control cables and airline connectors to achieve its protection and automatic monitoring functions. The product is widely used in urban and rural 35kV transmission line users.

Environmental conditions of use

 a) Altitude: s2000m

b) Ambient temperature: -40°C- +80°C Maximum annual average temperature 20°C. Maximum average daily temperature 30°C

c) Seismic capacity: horizontal ground acceleration 0.3g. vertical acceleration 0.15g. simultaneous action of three sine waves with a safety factor of 1.67

d) Maximum daily temperature difference: 25℃

e) Neutral grounding mode: neutral point is not grounded, neutral point is grounded by arc extinguishing coil, neutral point is grounded by low resistance

Product quality responsibility

Before the controller is put into operation, please read this manual in detail, for violation of the operation of the equipment damage caused by my company is not responsible.

Functions and features

Functions of the controller

◇Quick-break protection ◇Overcurrent protection ◇Three times reclosing ◇Event memory view ◇Surge protection ◇Three-stage protection

Zero-sequence protection ◇Real-time clock ◇Post-acceleration ◇Real-time status enquiry ◇Inverse time limit

Features of the controller

◇Acceleration function after reclosing: When the switch is reclosed in permanent fault, it will accelerate tripping: ◇

◇Remote-controlled closing accelerates tripping and latches reclosing: if the user sends power after overhauling the line, it should accelerate tripping if it forgets to remove the grounding knife gate.

◇The delay time for all three reclosures can be adjusted.

◇The tripping circuit is designed to prevent misoperation and has an anti-trip function.

◇The zero sequence current can distinguish between in-zone and out-of-zone faults; only the remote-controlled breaking and closing circuit is designed to prevent misoperation.

◇The three-stage protection function can independently realize four sets of anti-time-limit curves.

◇The three-stage post-acceleration function can be independently activated or closed.

Structural features

a) The controller is a microcomputer type seam power protection and monitoring device.

b) The controller has the protective features of strong weather resistance and condensation resistance.

c) Connection to the switch body is made through an airline connector.

d 1 Good connection reliability and high protection level.

The controller has 5 analog input channels, A-phase current, B-phase current, C-phase current, zero-sequence current, and C-phase current. Zero sequence current. Single-side voltage. The controller monitors the above analogue values in real time and compares them with the fixed values to determine line faults, so that they can be processed accordingly.