why impudance relay used for medium transmission power system? why not others?

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What is the control action?

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Name two low frequency oscillators?

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what is the purpose of %impedance for transformer

3 Answers  

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What is the criteria in selecting Air circuit breaker(ACB) & Moulded case circuit breaker(MCCB) for a particular range?

3 Answers   DLF,

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what is the function of bearing in dc mchine" and where it is placed

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i have flexible wire. size of conductors is 0.190 mm & no.of conductors are 48. then size of wire comes 1.37 sqmm instead of 1.5 sqmm . the what is tolerance for this size.

0 Answers  

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why 3phase is 440v but where as we get phase voltage 220v,we have to get 220*3=660v.can u pleas give in detailed

3 Answers   Avantha Group,

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what is meant by armature reaction & where its happen ?

3 Answers  

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Is it true online ups having bypass mode if it is true then why we called ups because it is interrupting power when goes in bypass mode

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i have dry type transformers can you help me that how many tests i can do to know the performence of transformer and also please tell me about the BDV test and Insulation resistance test in oil cooled transformers

4 Answers   Hyundai,

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why the earth conductor in top of the tranmission line ?

2 Answers  

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