Energy Technology OCEM AUGIER DIAM4200 Series, Установка и обслуживание

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6021642 DIAM4200 2.5 to 20KVA rev 1-9.docx
IV-40
IV
MAINTENANCE
IV.1 FORMALISATION
To follow maintenance procedures correctly, the following points must be observed:
 Create a maintenance file containing the headings “Date”, “Time”, “Maintenance Engineer”, “CCR
reference”, “Problem definition”, “Solution applied”, and “Time spent”

The spare parts monitoring sheet (with their control numbers) should be completed if necessary.

An overall maintenance operation book or folder for each maintenance post will be kept up to date
with these sheets. It will gather together, in particular, all the device test reports and references to
the initial states of the devices.

A regular examination of these different documents will allow the status of the system to be
monitored, facilitate management of spare part batches and improve, if necessary, maintenance
procedures.
IV.2 PROCEDURE FOR
INTERVENTION
Before any intervention on a regulator
:

Carry out the isolation of the CCR by consigning its power supply. The isolating device shall be
locked and located.

Check on the CCR the absence of supply voltage.

Proceed to grounding and short-circuiting the parts normally under voltage, in order to discharge
the residual capacitors.
Before any intervention on the load loop of load or on a HV part of a regulator
:

Achieve the consignment as considered previously

Short-circuit and ground the HV loop or HV terminals, by using the devices present on the CCR
(Option cut-out switch with jumpers, rotary or of FAA type), or using external cables, in order to
discharge the residual capacitors.