Answer / k.prakashchandra

The other 2 phases are the paths for return current of a
phase.

Answer / simon peter

Its due to unbalanced capacative or inductive load......

Answer / karan

no any unbalance current flow in delta circuit

Draw a block diagramof Three UPS systems connected in Parallel mode?

0 Answers   HSL,

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in three phase with neutral connection, what will happen,if the neutral is in open condition with single phase distribution panel

4 Answers  

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Can we use a window type neutral CT instead of a bar type neutral CT. We have an issue with a neutral bar type CT of 800/1 ratio with a Circuit breaker NS800L shneider type, and we want to change it with a window type. Pls advise. Thanks

1 Answers  

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How to design the earth grid for lightning protection in an industry

2 Answers  

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WHAT IS MEANING OF VECTOR GROUP FOR TRANSFORMER

2 Answers  

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what are corona losses

3 Answers   Siemens,

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hii this is ranjith from hyd... i want to know what type of questions they ask in interview...and hw the interview will go..? what subjects thay ask specially for electrical engg students?

0 Answers  

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1.Why hydrogen used for cooling in generators 2.Why electrical equipment protected by ground 3.Why earthing for transmission line 4.What is rms value of half wave rectified square wave. If Rms value of actual wave 2amps.

1 Answers   Power Grid,

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What is the calculation for 1000Amps Air circuit breaker relay settings.

1 Answers  

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If the Brush of DC motor is shifted by 90 deg, then what happens to voltage and torque? Both voltage and torque are zero. how to justify the answer?

0 Answers  

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what is photo voltic cell,& what are the materials associated with that?and any spcifications like volts/cm etc?

0 Answers  

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Three set (each phase contain 2 cable of 400 mmsq CU XLPE AWA) of single core cables are connected to 11 KV motor of 14 MW & the switch gear supplay is taken from 11kv feeder & this supplay taken from 275 KV substation. Problem is one pair cable(L3- 2 cable ) getting very hot & gland melted and damaged in switch gear side. the other two cable haven't any more hot(ambient temp only & L3 haveing 95- 100 Degree C. The same problem happened in 275 KV substation switch gear side also where the supply taken for 11 kv switch gear. But here L2 phese cable had problem. Why it is happening like this?. The cable having temperature different at different location from gland side inthe case of 11KV feeder of 275 kv substation. why ?

2 Answers  

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