The GYDCG-UB1K-ARH Isolation Monitoring Device is based on the non-balanced bridge principle, integrating monitoring and protection functions. It can monitor the insulation resistance of DC floating systems within 0Ω to 10MΩ. and detect DC voltage within 0V to 1000V.
This Isolation Monitoring Device is equipped with a high-voltage grounding switch, enabling online on-off functionality. The DC-to-ground high-voltage test does not exceed 4200Vdc. It has RS485 communication to remote get values and set alarm resistance thresholds by DIP switches. Furthermore, users can choose between passive reset and automatic reset through DIP switch configurations, and the module stops operating during manual or remote reset.
The GYDCG-UB1K-ARH Isolation Monitoring Device is based on the non-balanced bridge principle, integrating monitoring and protection functions. It can monitor the insulation resistance of DC floating systems within 0Ω to 10MΩ. and detect DC voltage within 0V to 1000V.
This Isolation Monitoring Device is equipped with a high-voltage grounding switch, enabling online on-off functionality. The DC-to-ground high-voltage test does not exceed 4200Vdc. It has RS485 communication to remote get values and set alarm resistance thresholds by DIP switches. Furthermore, users can choose between passive reset and automatic reset through DIP switch configurations, and the module stops operating during manual or remote reset.
| Parameter | Value | ||
| Power supply | 10-30VDC, Power 3w | ||
| DC voltage range | 100V~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 | ||
| Maximum relay switching voltage | 250VAC/30VDC | ||
| Maximum relay switching current | 3A | ||
| Relay contact resistance | <100mΩ | ||
| Relay insulation resistance | 100MΩ | ||
| 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/2500VAC | ≤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 |
