Essential Functions Of The Insulation Fault Location System (Eds); Product Description - Bender ISOMETER IRDH575 Manual

3.3 Essential functions of the Insulation fault
location system (EDS)
Generation of the test current necessary for selective insulation fault
 
location
Indication of the insulation faults selectively localized by the EDS4...
 
systems
Parameterization of EDS4... systems
 
Test function for EDS4... systems, incl. the connected measuring cur-
 
rent transformers.

3.4 Product description

The IRDH575 ISOMETER® monitors the insulation resistance of IT systems. It is
suitable for universal use in 3NAC, AC/DC and DC systems. AC systems may in-
clude extensive DC supplied loads, such as converters or thyristor-controlled
DC drives. The device automatically adapts itself to the existing system leaka-
ge capacitance.
The IRDH575 ISOMETER® is fitted into an enclosure for panel mounting,
144 x 96 mm (WxH). For protection against dust and moisture, a panel seal
(IP42) or a front-face transparent cover (IP65) are available as accessories, see
page 112.
The IRDH575 can be used in combination with a control and indicating device,
PRC1470 version 2 or higher, for example, on the BMS (BMS = Bender Measu-
ring Device Interface) bus.
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IRDH575_D00089_05_M_XXEN/01.2020
Function