ISOMETER® IR155 03/04 Series

Ground-fault monitoring device (IMD) for ungrounded DC drive systems (IT systems) in electric vehicles
Continuous measurement of the insulation resistance 0…10 MΩ, factory-set preconfigured response values
AC and DC IT systems up to 0…1000 V
Short-circuit protected driver outputs for fault detection and PWM coded Iso measuring value
Power supply suitable for 12 V and 24 V systems

The ISOMETER® iso-F1 IR155-3203/-3204 monitors the insulation resistance between the insulated and active HV-conductors of an electrical drive system (U_n = DC 0 V…1000 V) and the reference ground (chassis ground > Kl.31). The patented measurement technology is used to monitor the condition of the insulation on the DC side as well as on the AC motor side of the electrical drive system. Existing ground faults will be signalized reliably even under high system interferences which can be caused by motor control processes, accelerating, energy recovering etc.

Questions? Contact us!

Ground-fault monitoring device (IMD) for ungrounded DC drive systems (IT systems) in electric vehicles
Continuous measurement of the insulation resistance 0…10 MΩ, factory-set preconfigured response values
AC and DC IT systems up to 0…1000 V
Short-circuit protected driver outputs for fault detection and PWM coded Iso measuring value
Power supply suitable for 12 V and 24 V systems

The ISOMETER® iso-F1 IR155-3203/-3204 monitors the insulation resistance between the insulated and active HV-conductors of an electrical drive system (U_n = DC 0 V…1000 V) and the reference ground (chassis ground > Kl.31). The patented measurement technology is used to monitor the condition of the insulation on the DC side as well as on the AC motor side of the electrical drive system. Existing ground faults will be signalized reliably even under high system interferences which can be caused by motor control processes, accelerating, energy recovering etc.

Questions? Contact us!

Features

Suitable for 12 V and 24 V systems
Automatic device self test
Continuous measurement of the insulation resistance 0…10 MΩ
– Response time for the first measurement of the system state (SST), < 2 s after switching the supply voltage on
– Response time < 20 s for insulation resistance measurement (DCP)
Automatic adaptation to the existing system leakage capacitance (≤1 μF)
Detection of ground faults and interruption of the ground connection

Insulation monitoring of AC and DC insulation faults for ungrounded systems (IT systems) 0…1000 V
Undervoltage detection for voltages below 500 V (adjustable at factory by Bender)
Short-circuit proof outputs for:
– Fault detection (high-side output)
– Measured value (PWM 5…95 %) and status (f = 10…50 Hz) at high or inverted low-side driver (M_HS/M_LS output)
Protective coating (SL 1307 FLZ)

Applications

Monitoring for ungrounded DC drive systems (IT systems) in electric vehicles