Replacing Psu 2 For The Insulation Monitoring Instrument - Huawei PDU8000 User Manual

PDU8000 DC Combiner Cabinet
User Manual
8.9 Replacing PSU 2 for the Insulation Monitoring
Instrument
Prerequisites
When replacing PSU 2, wear insulated gloves and do not touch the copper bar.
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Procedure
Step 1 Open the front door of the combiner cabinet.
Step 2 Loosen the screws on the protective panel of PSU 2 and open the protective panel.
Take appropriate insulation measures to avoid electric shocks when opening the
protective panel.
Step 3 Remove the top sealing plate.
Figure 8-10 Removing the top sealing plate
Step 4 Disconnect the PSU fuses FU11 and FU12 and check that the power indicator is
off.
Step 5 Remove the wiring terminals from PSU 2.
Step 6 Remove PSU 2.
Issue 02 (2022-08-10)
CA UTION
Tools: electroprobe, insulated gloves, Phillips screwdriver, flat-head
screwdriver, multimeter, step ladder, key to the combiner cabinet door
Material: A new PSU 2 of the same model is available and functional.
NO TICE
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