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 10~1000V DC 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 there are 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
Dimension
Technical parameter
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Technical Parameter
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Technical Specifications
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Auxiliary power
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DC 9~36V
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Maximum power consumption
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≤6W
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Voltage
monitor
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Voltage range
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AIM-D100-TH: DC 100~1000V；
AIM-D100-TL: DC 10~100V
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Accuracy
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0.5
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Overvoltage threshold
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≥110% Rated Voltage
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Undervoltage threshold
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≤90% Rated Voltage
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Insulation
monitoring
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Insulation resistance range
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1kΩ~10MΩ
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Warning and alarm range
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10kΩ~10MΩ
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Accuracy
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1~10kΩ: ±1k; 10k~500k: ≤3%
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System leakage capacitance
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≤5μF
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Monitoring method
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Cycle trigger: 5~500s delay can be set;
Communication trigger: read on demand
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Insulation monitoring speed
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500ms/cycle; 1000ms/cycle
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Internal DC impedance
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＜1MΩ
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Alarm method
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LCD, LED indicator, relay output
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Alarm output
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3 relay outputs, N/O or N/C can be set
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Contact capacity
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5A 250V AC;5A 30V DC
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Fault Record
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20 fault record
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Communication
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RS485 interface, Modbus-RTU protocol
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Installation
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DIN-rail installation
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Protection level
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IP30
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Environment
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Operating temperature
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-40~+75℃
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Storage temperature
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-40~+125℃
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Relative humidity
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<95%, without condensation
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Altitude
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<2000m
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