System Manual
50
Check Item
Check Method
Interval
Check the electric indicator to see
whether theL1/L2/L3 indicator is
normal.
If
not,
replace
theL1/L2/L3
indicator
under
power off condition.
Transformer
Check the oil level meter
indication of the transformer. If
the oil level is low, power off the
transformer and refill it in time.
Once a month
Check whether there is oil
leakage around the pressure
release valve. If yes, tighten the
valve.
Check whether there is oil
leakage on the phase bushings of
the high-voltage and low-voltage
cabinets. If yes, tighten the valve.
Check whether there is oil
leakage on the joint between the
heat sink of the transformer and
the flange of the oil tank. If yes,
tighten the valve in time.
Check whether the real-time
temperature
of
the
oil
temperature indicator is normal. If
abnormal,
measure
the
resistance of PT1\PT2 and PT3
by multimeter. If the result is not
qualified, the temperature
controller is faulty and needs to
be repaired in time.
Check whether the sound of the
transformer is normal during
operation.
LV cabinet
Check whether the surge
protection device indicator is
normal (green) or faulty (red).
Monthly
Check
whether
there
is
condensation on the internal side
panel and top cover.
Summary of Contents for MVS6250
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