Will The Rated Capacity of 20 MVA ,220/6.6 KV, ONAN cooling Power Tranformer

Will The Rated Capacity of 20 MVA ,220/6.6 KV, ONAN
cooling Power Tranformer be increased up to 25 MVA with
respect to its %Impedence by ONAF cooling with same
rating..?

Question Posted / guest

2 Answers
5211 Views
Ambuja, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

Will The Rated Capacity of 20 MVA ,220/6.6 KV, ONAN cooling Power Tranformer be increased up to 2..

Answer / appana ravi kumar

if we are using ONAF transformer , the winding temperature
of the transformer can be controlled , so the transformer
impedence also increase . transformer can be run above the
full load.

Is This Answer Correct ?

5 Yes

0 No

Will The Rated Capacity of 20 MVA ,220/6.6 KV, ONAN cooling Power Tranformer be increased up to 2..

Answer / guest

Above Transformer with same electrical parameter will have
higher capacity when its cooling system provided with ONAF
upon ONAN cooling System. As well as its %Impedence will be
also increased as accordingly.

Is This Answer Correct ?

2 Yes

3 No

Post New Answer

More Electrical Engineering Interview Questions

If DG runing time neutral is disconnected what will be the effect in Engine and Electricial panel.

2 Answers HP,

i am studying in final year can i allowed for 23rd UES of Indian army

0 Answers TCS,

hoe to test voltage restrained overcurrent relay?

2 Answers

how we can know which is Lv side and HV side of transformer by just seeing it?

7 Answers

What are the components connected in between the power supply coming from an electric pole to HT & LT Panels in a large commercial building or how the power supply connected from Electric pole to Transformer & then to the HT & LT panels of a building? Please send me answers via mail, my id is yogiagarwal@gmail.com. If possible, please give a line diagram.

0 Answers Ranbaxy,

what are frequency changers ? Tell me about commertially availble frequency changers ?

1 Answers GE,

DGs fuel and lube oil filters are not equal to one another.Why it is so.For example one MTU enginee fuel filter is one and lube oil filter-02nos other DGs are more.Please explain

1 Answers

what is the difference between the HT Cable and LT Cable ?

28 Answers Intergulf, Prabhat Cables,

why C.T secondary are rated 5A generally?

13 Answers ABC, Bhel,

why should a transformer be never connected to dc supply

5 Answers

1. what type of winding of slip ring ac induction motor rotor and why. 2. how the heating element use in two phase (415 volt)and what rating of element, you prefered.

1 Answers Simbhaoli Sugars,

calotropis is an example of the following phyllotaxy

1 Answers APGenco,

For more Electrical Engineering Interview Questions Click Here