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Thanks ... My transformer is a Wye:wye transformer with HV neutral,LV1 &LV2 neutral.If i have to feed 11 kV ,then which point(LV1 or LV2) should be connected and all the neutrals should be opened in condition?..

Hello, I have an issue with my transformer charging.Transformer ratings are 110 MVA,132/11 kV Three phase.This transformer has to be commissioned in a short period .But the problem is there is no 132 kV supply line from the switchyard which is in under construction.My question is...

The transformer is not filled with oil.I was checking the pressure while vacuuming the unit

Thanks @prc But can u please explain why the leakage flux effect is not in the bottom point(the bottom) as you explained.

The transformer has to be transported through mud road and not on concrete one.it is in a thermal power plant inside a village.the transformer has to be installed at the receiving end.whether I should prefer low bed trailer or 6 or 7 axle puller for this purpose.there is no steep hills.its...

Iam loading the transformer by crane.here its a rural area.so no specialist s are available.how can I calculate the lad bearing capacity of the trailer??

By frame,I meant the core clamp.normally the core-transformer body,core-core clamp,core clamp -transformer body is seperated.by insulation to avoid circulating currents.so there will be IR values.is there any difference in small rating(in terms of MVA) and large rating transformers in terms of...

I need to shift my Transformer(82 ton).I have to choose a suitable trailer...Can any one suggest the trailer capacity????

How to Connect NGR with transformer?.Please explain with the process..

Will there be any difference in vacuum reading(in Macleod guage) while connecting the guage to top and bottom sampling valves of transformer??

@Prc, Please explain the circulating current effects in small and large transformers.my doubt is is it depends up on MVA or Voltage class?..

I am having an issue with megger values between frame and transformer tank.the values are coming zero.the rating of the transformer is 7.5 MVA,132/11 kv. The transformer is in nitrogen filled condition. Please tell me the reasons and the after effects due to this.