Tap changing?
Tap changing?
(OP)
Normally we tap change our 11000/415v transformers isolated
(as recommended), however due to a high authority supply voltage we had to do a change on a transformer energised but with no load.(load supported via generators) Can anybody advise if this could of had a detrimental affect on the transformer?
thanks
(as recommended), however due to a high authority supply voltage we had to do a change on a transformer energised but with no load.(load supported via generators) Can anybody advise if this could of had a detrimental affect on the transformer?
thanks






RE: Tap changing?
RE: Tap changing?
of a full turn is in series with the short circuit between
adjacent taps during switching.
<nbucska@pcperipherals.com>
RE: Tap changing?
The term "no-load tapchanger" is a little misleading... perhaps might be misunderstood to mean that the only requirement for changing the tap is removing the load... this is definitely NOT the case.
RE: Tap changing?
Many thanks for the confirmation, i have passed this onto the the person who carried out the change. He did mention the Transformer did not like the switching action by the noise it made. I think the comment 'catastrophic' has hit home and a lesson been learned, he will not do this again.
Thanks
RE: Tap changing?
cct — Seems like an apt description of a classic "near miss." Some sounds leave magnificently sobering impressions.