Bender iso165C dc insulation monitor relay for ungrounded DC drive system electric vehicle Ground fault monitoring device (IMD)

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Product Overview


Product Description

The ISOMETER®DC insulation monitor monitors the insulation resistance between the active HV components of an electrical drivesystem (Un = DC 0 V…600 V) and the reference ground (chassis ground). 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.

Features of electric vehicle insulation relay:
Insulation monitoring of AC and DC insulation faults for unearthed systems (IT systems) from 0…600 V peak
Power supply for all internal voltages
Continuous measurement of insulation resistance from 0 Ω…50 MΩ
Response time of ≤ 20 s for measured insulation resistance (using Direct Current Pulse (DCP))
Automatic adaptation to the existing system leakage capacitance (≤ 1 μF)
Detection of ground faults and lost ground line
Measurement of a second voltage

The ground-fault monitoring device works when:
– HV is unstable
– HV is powered off
– There are symmetric or asymmetric insulation faults
– Faults exist between HV lines and the supply voltage
Galvanic insulation of all signals from the HV side
HV coupled network
CAN bus interface
Light weight: < 220 g (including housing and connection frame)
iso165C-1 only: The iso165C-1 variant features Error and Warning signals on the separated high-side driver

0.0108 s.