Products

WGB-877A Microcomputer Backup Power Switch

WGB-877A Microcomputer Backup Power Switch

WGB-877A Microcomputer Backup Power Switch is a microcomputer type backup power automatic switch device with perfect and advanced functions, it mainly applies to automatic switching the incoming line switch and section (bridge) switch of 10kV voltage class and under. You can directly install it in the high voltage switch cabinet or in a screen body.

Application

WGB-877A microcomputer-based backup power automatic switch device is a microcomputer type backup power automatic switch device with perfect and advanced functions, it mainly applies to automatic switching the incoming line switch and section (bridge) switch of 10kV voltage class and under. You can directly install it in the high voltage switch cabinet or in a screen body.


Product Feature

  • The working power supply features a wide design range and is compatible with both AC and DC.
  • Integrated chassis design, small volume, small occupation space, suitable for various cabinet installation.
  • Use graphic LCD English display, menu type operation, easy to use.
  • The binary inputs adopt strong electricity design, AC and DC universal, has strong anti-interference ability
  • Using independent high-precision ADC, with high protection accuracy and strong anti-interference ability.
  • Standard device is configured with RS485 and Ethernet communication interface, supporting multiple communication protocol such as IEC103 and Modbus.
  • 8 sets of protection setting value, and is convenient to switch protection setting zone.
  • Can save 400 recent report records to facilitate traceability analysis of problems.
  • Support the fault recording function, which is convenient for accident analysis.

Function configuration

No. Function name
Protection Function 1 Incoming line auto-switching (mode 1,2,5,6)
2 Segment (bridge) switch auto-switching
3 Auto-switching self-recovery function
4 Incoming line 1 overcurrent accelerating protection
5 Incoming line 2 overcurrent accelerating protection
6 Incoming line 1 overload protection
7 Incoming line 2 overload protection
8 Bus voltage transformer circuit disconnected abnormal detection
9 Incoming line voltage transformer circuit disconnected abnormal detection
10 Voltage transformer circuit disconnected
abnormal detection
Measure and Control Function 1 Remote signaling acquisition, change, alarm
2 Analog telemetering acquisition: Ia1,Ic1,Ia2,Ic2,Ux1,Ux2,Ua1,Ub1,Uc1,Ua2,Ub2,Uc2,Uab1,Ubc1,Uca1,Uab2,Ubc2,Uca2.