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Type:
Monitoring Hardware
Description:
The locating current injector RR 5886 in connection with the insulation
fault locator RR 5887 monitors and localises insulation faults in complex
AC/DC networks (IT systems). The external current transformers work
independently of each other. They are simply connected to the measuring
channels of the insulation fault locator RR 5887 and are calibrated by it.
The number of measuring channels is increased by combining several
insulation fault locators via a RS-485 bus connection. The search for
insulation faults in extensive networks can be refined in this manner.
Two different alarm levels facilitate the timely detection of a dangerous
insulation state. The devices are operated easily and intuitively thanks to
automatic balancing and a clear layout of the setting elements. The early
detection and localisation of insulations faults permits their quick and
targeted correction. As user you will benefit from the operating reliability
and high availability of your system.
Connectivity:
Modbus RTU
Features:
Quick correction of insulation faults in complex power networks; Universal auxiliary voltage range; Easy operation
Specifications:
Insulation troubleshooting in AC, DC and AC/DC networks (IT systems)
in connection with the locating current injector RR 5886 according to
DIN EN 61557-9 (VDE 0413-9):2009 and DIN EN 61557-1 (VDE 0413-1); Insulation coordination according to IEC 60664-1; Connection of max. 4 or 8 measuring current transformers depending
on the design; RS-485 bus connection to synchronise the test current analysis and
optionally for the connection to the Modbus RTU field bus; Status output of insulation fault detection via external switching output; Memory characteristics adjustable via bridge X1-X2; Collective signalling relay to output preliminary warning and alarm states; Pushbutton for manual reset of alarm states as well as testing of
measuring current transformers and their calibration; Terminal connection for the storage of alarm states; Width: 105 mm
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