Acrel AIM-D100-T Series DC Insulation Monitor
Acrel AIM-D100-T Series DC Insulation Monitor
● DC voltage measurement of L+/L-, L+/PE and L-/PE up to DC 1000V
● Resistance measurement to earth (L+/PE and L-/PE); Range from 1kΩ~10MΩ, real-time or be activated by communication
● Automatic adaptation to the system leakage capacitance up to 5 μF.
● Two separately adjustable response value ranges of 1kΩ~10MΩ
● LED indicating for run, communication, over-voltage, under-voltage and insulation fault
● 3 relays (N/C or N/O adjustable)
● 20 fault message records
● 1 RS-485, Modbus-RTU protocol
● LCD display
● Pluggable terminals
● Dimension: 72×107.7×70 (mm)
Acrel AIM-D100-T Series DC Insulation Monitor
General
With the development of industry, many electrical equipment and plant equipment are powered by DC systems, which have ungrounded positive and negative terminals. For ungrounded (IT) distribution system, insulation resistance should be monitored to ensure the safe operation of the power supply system.
AIM-D100-T series DC insulation monitor can be applied in DC10~1000V system for on-line monitoring of DC ungrounded system positive and negative pole to ground insulation resistance, and send out warning or alarm signal when insulation resistance is lower than the set value.
The product is based on the principle of unbalanced bridge, which avoids the problem that balanced bridge can not detect the insulation resistance when ground faults at both positive and negative poles.
The product can be applied to DC systems such as DC panels of power plants and substations, electric vehicle charging devices, UPS power supply systems, photovoltaic DC systems, energy storage systems and other DC power grids.
AIM-D100-T series DC Insulation Monitor Type Specification
Acrel AIM-D100-T series DC Insulation Monitor Typical Application
Typical Application of AIM-D100-TH in Unearthed DC System
Typical Application of AIM-D100-TH in Photovoltaic System
AIM-D100-T series DC Insulation Monitor Front Panel
AIM-D100-T series DC Insulation Monitor Dimension
AIM-D100-T series DC Insulation Monitor Installation
Picture On-site
Acrel AIM-D100-T Series DC Insulation Monitor
Technical Parameters
|
Technical Parameter |
Technical Specifications |
|
|
Auxiliary power |
DC 12~36V |
|
|
Maximum power consumption |
≤6W |
|
|
Voltage monitor |
Voltage range |
AIM-D100-TH: DC 100~1000V;AIM-D100-TL: DC 10~100V |
|
Accuracy |
0.5 |
|
|
Overvoltage threshold |
≥ Rated Voltage * 120% | |
|
Undervoltage threshold |
≤ Rated Voltage * 80% | |
|
Insulation monitoring |
Insulation resistance range |
1kΩ~10MΩ |
|
Warning and alarm range |
10kΩ~10MΩ |
|
|
Accuracy |
1~10kΩ: ±1k; 10k~500k: ≤3% |
|
|
System leakage capacitance |
≤5μF |
|
|
Monitoring method |
Cycle trigger: 5~500s delay can be set; Communication trigger: User defined, Refer 7.4 |
|
|
Insulation monitoring speed |
500ms/cycle; 1000ms/cycle |
|
|
Internal DC impedance |
<1MΩ |
|
|
Alarm method |
LCD, LED indicator, relay output |
|
|
Alarm output |
3 relay outputs, N/O or N/C can be set |
|
|
Contact capacity |
AC 250V 5A; DC 30V 5A |
|
|
Fault Record |
20 fault records |
|
|
Communication |
RS485 interface, Modbus-RTU protocol |
|
|
Installation |
DIN-rail installation |
|
|
Protection level |
IP30 |
|
|
Environment |
Operating temperature |
-20~+60℃ |
|
Storage temperature |
-25~+75℃ |
|
|
Relative humidity |
<95%, without condensation |
|
|
Altitude |
< 2000m |
|
