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Hi All,
I am working as a Technical executive in a MNC company and
we have 1500KVA & 1250KVA T/F in our site, can you help me
that how many maintenance tests can be conducted and what
are the procedures included for the tests can you share
yours answers and also give any web address to get more
information on this
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Answer Posted / virendra joshi
Dear friend ,
Transformer is a heart of the electrical system & that is
the reason it required more care.
Daily :-
Check the Oil level in Conservator.
check for any leakage in transformer
Check for any abnormal sound
check for Colour of silica gel.
Check for any air in Bucholz realay , if found realease
with the air vent provided in the relay.
Yearly.
Check the Dielectrica strengh of oil , filter it & if
required replace it.
Check the earthing value of a Earthpit if required topup
with salt & water.
Check the tighness of the connection both the way Primaty
side & secondary side.
Clean the transformer yard throughly.
If required lay the granuals in the transformer yard.
By proper shut down manually check the tripping point of HT
breaker tripping set points like ( OT, WT & Bucholz Relay )
check the secondary side voltage as per desired voltage &
if any missallign found adjust with the tap changer.
please revert if any quarry exists.
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