Products

WGB-611A Line Protection Devicen

WGB-611A Line Protection Devicen

WGB-611A Microcomputer-based line protection device (Hereinafter referred to as the device) mainly apply to protect line and outgoing feeder of 35kV voltage class and under. It can be directly installed in the high voltage switch cabinet or installed in a screen body.

Device introduction

WGB-611A Microcomputer-based line protection device (Hereinafter referred to as the device) mainly apply

to protect line and outgoing feeder of 35kV voltage class and under. It can be directly installed in the high voltage

switch cabinet or installed in a screen body

Function configuration

Protective Functions Abbr
 

1

Three-stage directional overcurrent protection with undervoltage blocking  

OC,OC2,OC3

2 Overcurrent accelerating protection OC_Accel
3 Overload protection (trip/alarm) OvLd
 

4

Three-stage zero-sequence directional overcurrent protection (trip/alarm) ZeroOC1,ZeroOC2, ZeroOC3
5 Zero-sequence overcurrent accelerating protection ZOC_Accel
6 Undervoltage load shedding protection UVLS
7 Under frequency load shedding protection UFLS
8 Automatic reclosing AR
9 Manual synchronization M-Sync
10 Bus voltage transformer supervision  

VTS

11 Line voltage transformer supervision
12 Control loop check Control Loop Chk
13 Circuit breaker open position check CB Open Pos Chk
14 Handcart position check Handcart Pos Chk
15 Spring not store energy check Spring not-E Chk
Measure and Control Functions
 

1

Remote signaling acquisition, device remote signaling change and fault remote signaling  

2 Remote control tripping and closing circuit breaker
 

3

Analog telemetering: IA, IB,IC, Ua, Ub, Uc, Uab, Ubc, Uca, P, Q, f, Cosf  

4 Fault wave records
5 Three channels 4-20mA direct current output  

Optional

6 Four channels 4-20mA direct current input
Communication Functions
 

1

Two-way RS485 communication interface, support IEC-103, MODBUS-RTU communication protocols  

 

2

Two-way RJ45 Ethernet interface, support TCP-103, IEC-104 communication protocols  

3 One-way time synchronization with pulse or B code mode
4 Support IEC61850 communication protocol Optional

Main features

 

  • The device has universal AC-DC Input Power, which has a wide adaptability :Device has universal AC-DC auxiliary power supply; the maximum input voltage is 500V, suitable for

    all kinds of complicated power supply place;

    Device has universal AC-DC operation circuit and binary input circuit power supply, which can apply

    to AC or DC power supply system.

  • The device has powerful communication function, standard device configure two Ethernet and twoRS485 communication interface and convenient for multiple networking mode, device has flexible

    communication, which support IEC61850, IEC-103, TCP-103, IEC-104, MODBUS-RTU and other

    communication protocols, facilitate communication with a variety of convenient networking with

    various microcomputer monitoring or the protection and management

  • The device has rigorous time synchronization, which supports network time synchronization, PPS, PPMor B codes and other time synchronization mode
  • Using dual 32-bit high performance embedded microcomputer processor, RAM and flash memory withlarge capacity; using SoC solution, which greatly enhanced the capability of data processing,logic

    operation and information storage and advanced operational speed and reliability

  • The device uses 16 high precision A/D for data acquisition, collecting 64 points per cycle, which hashigh measuring accuracy.
  • Back inserted and drawn modules, strong and weak electricity separation; enhanced unit chassisdesigned for resisting strong vibration and interference, which can be scattered installed on the switch

    cabinet

  • The device can keep more than 400 recent events record and operation record, can keep recording dataof 5 times faults occurred recently.
  • It has liquid crystal display, English display and menu operation.
  • Real-time multitasking operating system, modular programming; real-time, high reliability.
  • There are 8 sets of protection setting value, which are safe and convenient to switch.
  • It is optional for device to be configured with three channels 4-20mA output and four channels 4-20mAinput,which is convenient for industrial customers to gather data and extend control functions.
  • Device has rich resource of Binary input and Binary output, up to 28 channels Binary input and 16channels binary output, standby relay output is not less than 6, base which is convenient to extend or

    control signal output.

  • Device has complete operation circuit and remote controls of circuit breaker.
  • High integrated degree: device has protection, measure, control and other functions.