Products

WGB-661A Microcomputer-based voltage transformer monitor device (Hereinafter referred to as the device) mainly apply to protect and monitor voltage transformer of 35kV voltage class and under. It can realize automatic VT paralleling, low voltage protection, grounding protection and VT break detection function, mainly apply to the single bus section connection mode. It can be directly installed in the high voltage switch cabinet or installed in a screen body.

Function configuration

• Thedevice 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 discrete 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, 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.
• Thedevice 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 largecapacity; 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
• The device can keep more than 400 recent events record and operation record, can keep recording data of 5 times faults occurred recently.
• Ithas liquid crystal display, English display and menu operation
• Real-timemultitasking operating system, modular programming; real-time, high reliability.
• Thereare 8 sets of protection setting value, which are safe and convenient to switch.
• It is optional for device to be configured with three channels 4-20mAoutput and four channels 4-20mA input，which is convenient for industrial customers to gather data and extend control functions.