what does 60/80/110 MVA TR. stands for?
what does 60/80/110 MVA TR. stands for?
(OP)
Can any body explain what does it mean 60/80/110 MVA? for step up Power Transformers (60/80/110 MVA) 115/34.5kv,
regards
regards
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what does 60/80/110 MVA TR. stands for?
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RE: what does 60/80/110 MVA TR. stands for?
ONAN - Oil Natural Air Natural
ONAF - Oil Natural Air Forced
OFAF - Oil Forced Air Forced
Anand Sekhar
RE: what does 60/80/110 MVA TR. stands for?
The second ONAF come with a second stage of fan on the transformer so it can deliver more power since it's cool down by 2 stage of fan
RE: what does 60/80/110 MVA TR. stands for?
RE: what does 60/80/110 MVA TR. stands for?
Any further remarks please
RE: what does 60/80/110 MVA TR. stands for?
tem1234 has already responded on your query.. the second stage ONAF switches on more fans to provide still higher cooling.
Anand Sekhar
RE: what does 60/80/110 MVA TR. stands for?
RE: what does 60/80/110 MVA TR. stands for?
Even thought still is common in the US to call the trasformer cooling designation as OA/FA/FA, the ANSI standard was revised a few years ago to make them more consistent with IEC designation. So the IEEE Std C57.12.00-2000 replaced the cooling designation OA/FA/FA by ONAN/ONAF/ONAF.
RE: what does 60/80/110 MVA TR. stands for?