How to calculate the Short Circuit Impedance in Transformer?

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Electricty is generated at around 16kV, then step up to 220kV for transmission then steped down to power transformers then DTs and then through the LT n/w it reaches the consumer end. At the consumer end 230V supply is required. So, why is electricity not generated directly at 230V and transmitted?

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How do we calculate the out Put voltage of generator, after excitation being given?

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substation+ plc system

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What happens if the Capacitive Voltage Transformer Primary neutral is not earthed. There is a CVT between Transformer and source, and the CVT neutral of the transformer is not earthed, does it effect the transformer while charging or does it effect the transformer charging process.

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Which standard i will refer for size of earthing conductor for equipment? (Eg:415V Switchgear, MCC, DB shall be 50x6mm GI flat)

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Can CT Secondary left open circuited and why(reason)?

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How the over load setting for HT Motors calculated-provided in Numerical Relay

0 Answers   Damodar Valley Corporation,

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1.How to calculate backup time from series connected battery of 12v dc with 26Ah for 2battery?

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How test for Ddo vector group test condition?

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why DC motor body is plain cover but AC motor is different like finse?

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To prevent the mal operation of a differentially connected relay while energizing a transformer, the relay restraining coil is baised with (a)second harmonic current (b)fifth harmonic current (c)third harmonic current (d)seventh harmonic current

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