With the development of industry, many electrical equipment and factory equipment are powered by DC systems, and the positive and negative poles of the DC system are not grounded. For ungrounded (IT) power distribution systems, insulation resistance should be monitored to ensure the safe operation of the power supply system.
AIM-D100-CA series DC insulation monitor can be applied in DC system of 0~1000V, used for on-line monitoring of DC ungrounded system positive and negative pole to ground insulation resistance, when insulation resistance is lower than the set value, it will send out warning or alarm signal.
The product is mainly designed for DC 0~1000V range of electric vehicle charging device insulation monitoring, but also can be applied in energy storage DC, substation DC screen, UPS power supply system, photovoltaic DC system and other DC power grid DC system.
Technical Parameter |
Technical Specifications |
|
Auxiliary power |
DC 9~36V |
|
Maximum power consumption |
≤6W |
|
Voltage monitoring |
Voltage range |
DC 0~1000V |
|
Accuracy |
0.5 grade |
Current monitoring |
Current monitoring |
Connect with current shunt base on rated current; CAI models only |
|
Accuracy |
5% |
Insulation monitoring |
Insulation resistance range |
1kΩ~10MΩ |
|
Warning and alarm range |
10kΩ~10MΩ |
|
Accuracy |
1~10kΩ: ±1k; 10k~500k: ≤3% |
|
System leakage capacitance |
≤5μF |
|
Insulation monitoring speed |
500ms/cycle; 1000ms/cycle |
Alarm method |
LED indicator |
|
Communication |
RS485 interface, Modbus-RTU protocol |
|
Installation |
Wall-mounted installation or DIN-rail installation (plastic stent included) |
|
Protection level |
IP30 |
|
Environment |
Operating temperature |
-40~+75℃ |
|
Storage temperature |
-40~+125℃ |
|
Relative humidity |
<95%, without condensation |
|
Altitude |
<2000m |