Adjustments And Maintenance; Preliminary Operations - OCEM IRM Operation And Maintenance Manual

4

ADJUSTMENTS AND MAINTENANCE

After completing the installation, close the device with the key.
Only now is possible to close the upstream cut-out to supply the device.
4.1

Preliminary operations

If the device is equipped with a local cut-out, rotate it in ON position.
When the device is ONLINE (series circuit powered) the system periodically performs the measure of the leakage
current: the meter applies a voltage of about 800 V
current to the ground.
UT-MT-0930_1.3_220421 (EN)
Operation and Maintenance Manual
to an end of the series circuit by measuring the leakage
DC
IRM
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