The SKIM800 insulation monitoring device utilizes low-frequency pulse square wave injection to accurately monitor insulation resistance in AC, DC, and AC/DC hybrid IT systems (unearthed systems) below 1kV. By integrating with the IEX3000 coupler, it enables online monitoring for 1kV~10kV power grids, suitable for both main and control circuits.
| Parameter | Specification |
|---|---|
| IT System Rated Voltage | ≤800Vac and 1000Vdc |
| Power Supply | AC 85-265V, DC18-36V |
| Alarm Value Range | 1…20MΩ |
| Response Time (R=0.5xRan) | ≤4s |
| Insulation Alarm Delay | 0…9999s |
| Measure Voltage (U1) | 40V |
| Internal Resistance (R1) | ≥180 kΩ |
| Resistance Measurement Range | 1kΩ~20MΩ |
| Measurement Accuracy (1~5 kΩ) | ±1 kΩ |
| Measurement Accuracy (5 kΩ~1MΩ) | ±10 % |
| Permissible Leakage Capacitance | ≤ 200 μF |