Annual Maintenance - Huawei UPS5000-E-125 kVA User Manual

UPS5000-E-125 kVA
User Manual (Integrated UPS 3.0, 02291136)

5.3.2 Annual Maintenance

Table 5-8 Annual Maintenance
Item
PDC interior
Bolts between
power cables
and the busbar
Circuit breaker
PDC air-
tightness
Cable insulation
PDC insulation
Insulation
resistance of
the secondary
loop
Issue 01 (2022-09-26)
Expected Result
Check whether there is dust on
the PDC panels, the white paper
that you use to wipe the PDC
panels is clean.
The bolts are secured.
Switch on or off the circuit
breaker after powering off the
device, the circuit breaker is
switched on and off smoothly
for five times.
Check cable holes and PDC
sealing plates, there is no hole,
and sealing plates have not
shifted.
Measure the insulation
resistance, the insulation
resistance is greater than or
equal to 5 megohms.
Measure the insulation
resistance, the insulation
resistance is greater than or
equal to 10 megohms.
Measure the insulation
resistance, the insulation
resistance is greater than or
equal to 2 megohms.
Copyright © Huawei Digital Power Technologies Co., Ltd.
5 Routine Maintenance
Troubleshooting
If the white paper becomes
dirty, clean the PDC.
Tighten a bolt if it is loose.
If the circuit breaker jams,
maintain or replace it.
If there is a hole or a
sealing plate has shifted,
seal the cable hole or
reinstall the sealing plate.
If the cable insulation does
not meet the requirement,
replace the power cable.
If the insulation does not
meet the requirement,
check and maintain each
component.
If the insulation does not
meet the requirement,
check and maintain each
component and signal
cables.
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