Products

WGB-670A Series Backup Power Automatic Switch Device

WGB-670A Series backup power automatic switch device (Hereinafter referred to as the device) is fully functional advanced microcomputer-based backup power automatic switch device, mainly apply to automatic switch incoming line switch, section (bridge) switch of 35kV voltage class and under. It can be directly installed in the high voltage switch cabinet or installed in a screen body.

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Device introduction

Function configuration

Protective Functions		Abbr	WGB-671A	WGB-672A
1	Incoming line auto-switching (mode 1,2,5,6)	Mode 1, Mode 2, Mode 5, Mode 6	√
2	Section (bridge) switch auto-switching	Mode 3, Mode 4	√	√
3	Auto-switching self-recovery	Self-R	√	√
4	Incoming line 1 overcurrent accelerating protection	OC_Accel1	√
5	Incoming line 2 overcurrent accelerating protection	OC_Accel2	√
6	Incoming line 1 overload protection	OvLd_L1	√
7	Incoming line 2 overload protection	OvLd_L2	√
8	Three-stage overcurrent protection	OC1, OC2, OC3		√
9	Overcurrent accelerating protection	OC_Accel		√
10	Zero-sequence overcurrent protection	ZeroOC		√
11	Zero-sequence overcurrent accelerating protection	ZOC_Accel		√
12	Overload cutoff protection	OL_CutOff		√
13	Bus VT supervision	VTS_B1, VTS_B2	√	√
14	Incoming line VT supervision	VTS_L1, VTS_L2	√	√
15	Switch open position check	CB1 Open Pos Chk, CB2 Open Pos Chk, CB3 Open Pos Chk	√	√
16	Section switch control loop check	Control Loop Chk		√
17	Section switch handcart position check	Handcart Pos Chk		√
18	Section switch 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: (WGB-671A) Ia1,Ib1,Ic1,Ia2,Ib2,Ic2,Ua1,Ub1,Uc1,Ux1,Ua2,Ub2,Uc2,Ux2,Uab1,Ubc1,Uc a1,Uab2,Ubc2,Uca2	√
3	Analog telemetering: (WGB-672A) IA,IB,IC,UA1,UB1,UC1,P,Q,F,COS,Uab1,Ubc1,Uca1,Uab2,Ubc2,Uca2,Ux 1,Ux2,I0+,I0-,U0+,U0-	√
4	Fault wave records	√
5	Three channels 4-20mA direct current output	Optional
6	Four channels 4-20mA direct current input	Optional

Communication Functions
1	Two-way RS485 communication interface, support IEC-103, MODBUS-RTU communication protocols	√
2	Two-wayRJ45 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 two RS485 communication interface and convenient for multiple networking mode, device has flexible communication, which support IEC61850 (optional), 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, PPM or B codes and other time synchronization mode
Using dual 32-bit high performance embedded microcomputer processor, RAM and flash memory with large 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 has high measuring accuracy.
Back inserted and drawn modules, strong and weak electricity separation; enhanced unit chassis designed 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 data of 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 4-20mA input，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 16 channels Binary output, standby relay output is not less than 6, base which it 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.

Products

WGB-670A Series Backup Power Automatic Switch Device

WGB-670A Series Backup Power Automatic Switch Device

Device introduction

Function configuration

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