GYDCG-UBCS1 Series Insulation Monitoring Relay is based on MODBUS protocol, including ground insulation impedance monitoring, DC voltage monitoring, DC voltage reverse connection alarm, and other safety monitoring functions. It can be used for electric vehicle Discharging systems, photovoltaic systems, energy storage systems, DC grids, and other DC systems below 1000v.
This Insulation Monitoring Relay has an insulation monitoring start-stop function. After the insulation monitoring is started, it can monitor the insulation resistance of the positive and negative poles to the ground in real-time. The monitoring results are not affected by DC voltage fluctuations and are not affected by the symmetry of the positive and negative insulation resistance.
GYDCG-UBCS1 Series Insulation Monitoring Relay is based on MODBUS protocol, including ground insulation impedance monitoring, DC voltage monitoring, DC voltage reverse connection alarm, and other safety monitoring functions. It can be used for electric vehicle Discharging systems, photovoltaic systems, energy storage systems, DC grids, and other DC systems below 1000v.
This Insulation Monitoring Relay has an insulation monitoring start-stop function. After the insulation monitoring is started, it can monitor the insulation resistance of the positive and negative poles to the ground in real-time. The monitoring results are not affected by DC voltage fluctuations and are not affected by the symmetry of the positive and negative insulation resistance.
| Parameter | Value | ||
| Power supply | 10-30VDC, Power 3w | ||
| DC voltage range | 0V~1000V | ||
| DC voltage
measurement accuracy |
≤2V+0.3% | ||
| Insulation resistance
measurement range |
1KΩ~10 MΩ
(DC System voltage:100V~1000V) |
||
| Insulation monitoring accuracy
((When :DC voltage:100V-1000V) |
CY range | Resistance range | Accuracy |
| 0~0.8μF | ≤60kΩ | ≤3kΩ | |
| 60kΩ<R≤1MΩ | ≤5% | ||
| 0.8μF ~3μF | ≤60kΩ | ≤6kΩ | |
| 60kΩ<R≤1MΩ | ≤20% | ||
| Off-line pressure test | <2mA | ||
| Standard | IEC 61851-23 (2014-03):2014-11 | ||
| Humidity | 85% | ||
| Storage temperature | – 40°C ~125°C | ||
| Operating temperature | – 40°C ~75°C | ||
| Pressure point | Maximum voltage rating | Time |
| DC+/DC- To GND | 4200VDC/3000VAC | ≤1min |
| Power supply +/- To GND | 3500VDC/2500VAC | ≤1min |
| RS485 A/B To GND | 3500VDC/2500VAC | ≤1min |
| DC+/DC- To Power supply +/- | 3500VDC/2000VAC | ≤1min |
| DC+/DC- TO A/B | 3500VDC/2000VAC | ≤1min |
