Transformers losses and impedance
Transformers losses and impedance
(OP)
Hello everybody,
I would like to receive some feedback related to:
For thre phase liquid inmersed transformers ranging from 45 to 750 kVA of 33/0.48 kV.
From your experience, does anybody know some typical values of excitation current and No load losses ?
We are interested in knowing these values, because nobody has the tests protocols neither manufacturer provided information related to it.
Best Regards
I would like to receive some feedback related to:
For thre phase liquid inmersed transformers ranging from 45 to 750 kVA of 33/0.48 kV.
From your experience, does anybody know some typical values of excitation current and No load losses ?
We are interested in knowing these values, because nobody has the tests protocols neither manufacturer provided information related to it.
Best Regards






RE: Transformers losses and impedance
RE: Transformers losses and impedance
Rafiq Bulsara
http://www.srengineersct.com
RE: Transformers losses and impedance
RE: Transformers losses and impedance
KVA 100 1000 2000 3000
no load [w] 320 1700 3200 4400
no load [%] 0.32% 0.17% 0.16% 0.15%
Io[%] 2.50% 1.55% 1.20% 1.00%
load loss[w] 1750 10500 22000 30500
load loss[%] 1.75% 1.05% 1.10% 1.02%
impedance 4.00% 6.00% 6.00% 6.00%
See:
http
RE: Transformers losses and impedance
I thank your answers and comments
We are trying with 60 Hz and we have previously contacted some manufacturers in order to get the typical data of those parameteres but, at their websites nothing was available.
And talking to them on the phone, the answer was: we do not disclosure.
Because of that, we come to ask for your support!
Have a nice weekend