How to calculate the NGR value for a 2.7MVA Transfomer, 11KV system where the fault current has to be limited to 50A?

1 Answers   Sterling Wilson,

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what is the IS foe lightning arrester?

0 Answers  

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1.Why use in ups in software's,reason,and pls explain. 2.what is the isolation transformer and main use it's functioning and partes.

5 Answers   TATA, Wipro,

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3 shows a 415 V, 3-phase generator supplying a 3-phase 415/110 V transformer. Draw the individual and combined impedance diagrams to a base of 10 kVA. Determine the system fault kVA and the fault currents at the 415 V and 110 V busbars for short circuit faults on the transformer input or output terminals. Work in p.u. values of impedances.

0 Answers  

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give me name of current and volatge control device

1 Answers  

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Why the TNC switch is called as Memory switch

1 Answers   Reliance,

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Why we should use delta connection in primary and star connection in an distribution transformer, which converts 400v a.c. voltage to 33kv.

15 Answers   ABC, Kirloskar, Sify,

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can you any one give exact mathematical relation between AC current and DC current?

0 Answers  

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What is the formuala to calculate the rating of motor protection circuit breaker

0 Answers  

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how do you tell if a avalanche button diode is a p or an

1 Answers  

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What is the use of bundle conductors?

0 Answers  

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what r the tests on the 3 phase transformers can any one explain how to test using megger on transformers thx

2 Answers  

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