Is it possible to implement Restricted Earth Fault protection for a transformer without neutral CT?

2 Answers  

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at work we have a 3 phase motor but on testing one phase isnt getting a reading. it runs 24 hours a day all week. stops and starts well no noise or heating. the phase isnt down to earth.is it just a bad meter reading or not? phases one and three came up with a resistance reading of 0.4 but phase 2 couldnt get anything shows up as open circuit.

0 Answers   iGas,

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what is the use of earthing ?

8 Answers   Electrical Tech,

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What are the different protection systems used to protect the transformer internally and externally?

16 Answers  

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Why we use the D-curve MCBs in critical power distrubution.

4 Answers   Sodexo,

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raleigh method

0 Answers  

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What is full form of ELECTRICAL?

3 Answers   Changwoon, DP World, Electrical, GSS, HCL, ITI, L&T, Maruti Suzuki, MCC, SMR, Somany Ceramics, TRDP, Wipro,

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In n high voltage 11kv system What happened if 1 of CT cable (IDMT) loose.Will e/f or o/c trip.please explain detail

1 Answers  

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Current chopping mainly occurs in air blast circuit breaker.why?

1 Answers  

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The power showed in the name plate of the motor is input power or output power?? The power showed in the name plate is 18.5kw measured current is 34.5 amps. location is india. can i calculate the efficiency of the motor using this data??

2 Answers  

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There is no such thing as a Generator. All power generating devices are Alternator since both generate alternating current since this is the only way electrical power can be generated. In "generators" the alternating current is converted into DC inside the housing of the "generator" in order to give out DC Do you agree? If not please educate me. How else is DC generated if not like above?

2 Answers  

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in 400 kv system why should trip both side CB when we give hand trip?

1 Answers   KPTCL, NHPC,

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