how can we calculate the reactence of the current transformers?

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what is the MF if CT ratio is 500/5 and in meter specification is 3.75 REVS/KWH? Thanks and Regards Selvendran.N

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why grid failure happens?

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what is the mean of"turbo" in turbo alternator???

1 Answers   CCCL,

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is the power of a single phase induction motor(Fans) is constant under varying speeds?

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how to extend relay operating timing in 24V dc relay card (without using Timer )

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TO operate transformers in parallel, vector symbol of the both should be same.If one transformer name plate is not there, how can we conclude that whether the transformer is having the same vector symbol or not?

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when we put inducter in neuteral grounding of genrator.

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I am designing new project sub station with 220 kV / 11 kV, 40 MVA capacity. This project have many recifier sets, which can generate 3rd harmonics. Now I have to select vector group of This transformer. To minimise 3rd harmonics, what care should I take in selection of Transformer Vecrtor group? If it is Y-Y with open Delta tertiary then what should be the rating & voltage of Tertiary Winding?

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Why rotating machines are not allowed to run near critical speed region?

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iam using DM 3251 voltmeter(1 percent accuracy)for 11KV system PT ratio is 11KV/110V.can anybody explain what is the max and min voltage deviation.

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if harmonics is generates on the secondary side of transformer then why we put LC ckt on prim side?(i m talking abt rectiformer transformer)

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