Answer / sheikh

In case of cable testing there is no PD test. although cable at the time of manufacturing or
after manufacturing passing in test of voltage grade like a cable nominally use on 220V ang it,s permissible voltage grade may be 600 V. it means this cable cannot use over to 600voltage.

How can we have to decided motor connection as a STAR-DELTA or DELTA-STAR?

3 Answers   IOCL, Jindal,

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what are different types of alternator and discuss about the methods of cooling

16 Answers   Bhel, Jindal, L&T, Nalco, Vedanta,

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difference between a four point starter and three point starter

9 Answers  

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On what principle reluctance motors work?

1 Answers  

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how to define tell me about self

0 Answers   Bhel,

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It is advisable 2 use auto-transformer if transformation ratio is-a)110KV/11KV,b)230kv/110kv,c)110kv/66kv,d) 400kv/230kv

2 Answers  

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Dear All, In a 400V power system, ratio of three current transformers installed incoming switchgear is 4000/1. Maximum three phases short circuit current of this system is 48kA. One CT is installed on neutral of upstream transformer (6/0.42kV, solidly earthed) for 51G protection. Would you please inform me about the correct CT ratio of this current transformer (on neutral)?? Thanks a million

2 Answers  

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why power factor is important?

6 Answers   Dalkia, MGC,

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advantage of cu cable over al cable

4 Answers   Havells,

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how can we calculate air compressure capacity

1 Answers  

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WHAT IS SHORT CIRCUIT STRENGTH OF 100 AMPS MCCB?

0 Answers   ACC,

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how is classified voltage level in generation,transmission & distribution system?,

7 Answers   Adani,

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