Technology of Electrical Automatic

DCG Series DC Insulation Monitor

DCG Series DC Insulation Monitor

DCG series DC insulation monitor is based onRS485 Modbus protocol, suitable for EV DC charging system, photovoltaic system, energy storage system, DC power grid and other DC systems under 1000V.

This device has the function of insulation monitoring start and stop, insulation monitoring can be real-time monitoring of positive and negative poles to the ground insulation resistance, the monitoring result is not affected by DC voltage changing, is not affected by the positive and negative poles insulation resistance symmetry.

DCG series DC insulation monitor is based onRS485 Modbus protocol, suitable for EV DC charging system, photovoltaic system, energy storage system, DC power grid and other DC systems under 1000V.

This device has the function of insulation monitoring start and stop, insulation monitoring can be real-time monitoring of positive and negative poles to the ground insulation resistance, the monitoring result is not affected by DC voltage changing, is not affected by the positive and negative poles insulation resistance symmetry.

Features

  • Monitoring of the DC circuit bus bar insulation resistance RF to earth.
  • Bridge balance method for resistance measurement.
  • Single channel and dual-channels type optional.
  • Wider DC insulation monitoring range DC0~1000V.
  • Faster monitoring speed of turning on.
  • Communicate with RS485 Modbus networks·Adaptive capacitance to ground.
  • Simple device setting by DIP switch.

Specification

Model DCG-UBC1 DCG-UBCH2
Detect channels Single channel Dual channels
DC voltage range 0~1000V
Power supply  9~30VDC
Insulation resistance range 1KΩ~10MΩ
Insulation monitoring accuracy ≤3KΩ+10%(100-300V)
≤3KΩ+5% (300-1000V)
Measurement accuracy ≤2V+0.3%
Storage temperature -40°C ~ 125°C
Operating temperature & humidity -40°C ~ 70°C, 85%
Off-line pressure test  <2mA
Communication RS485 Modbus
Installation type Din Rail mount

Selectable models

GYDCG-UBCH1

    • Single-circuit monitor
    • DC voltage continuous detect
GYDCG-UBCH1MV
    • With E-vehicle side voltage
GYDCG-UBCH1MC
    • With current shunt measurement
GYDCG-UBCH1MVC
    • With E-vehicle side voltage
    • With current shunt measurement
GYDCG-UBCH1MVCA
    • With E-vehicle side voltage
    • With current shunt measurement
    • With Alarm functions
GYDCG-UBCH1-LZ
    • With RS485, Modbus-RTU
GYDCG-UBCH2

    • Dual-circuit insulation monitor
    • DC voltage only detect when insulation monitoring
GYDCG-UBCH2MV
    • With E-vehicle side voltage
GYDCG-UBCH2-LZ
    • With RS485, Modbus-RTU
GYDCG-UBC1

    • Single-circuit monitoring
    • DC voltage continuous detect
    • Low withstand voltage
GYDCG-UBC1X
    • With capacitor discharge switch
GYDCG-UBC1MV
    • With E-vehicle side voltage
GYDCG-UBC1MVX
    • With E-vehicle side voltage
    • With capacitor discharge switch
GYDCG-UBC1-HRLZ
    • High withstand voltage
    • With RS485, Modbus-RTU

Downloads

Brochure of DC Insulation Monitor Device

GYDCG-UBC1-HRLZ Usermanual v1.0

GYDCG-UBCH2-LZ Usermanual v1.0