Answer / amarjit singh

becase in neutral always unbalanced current flow in 3 phase system if current in amp R=25 A,Y=22 A AND B=20A only 5 amp current flow through neutral thats why in 4 core cable neutral diameter less than phases .try it practically

is it necessary for 200 kva transformer to have marshaling box and cu plate earthing for neutral

1 Answers   Blue Star,

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What is s-domain and its significance?

0 Answers  

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11 kv metering is done in my factory.Meter show PF 1.000 but kvarh lag&lead show 24&94 respectively & Avg.PF is .956 .? is what i do for inproove my PF to 1.000

3 Answers  

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what is the formula for backup time of online ups?

1 Answers  

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What is the importance of quality factor in resonance?

3 Answers  

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What are the relays in ACB and VCB

0 Answers   ABB, Bhel,

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In the case of petrochemical area AC drive & AC motor is used where the speed variation is required. Why they are not Using DC drive & DC motors in such areas?

1 Answers  

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we convert 66kv to 33 kv to 11kv to 440v. why can't we directly convert 33kv to 440 ?

9 Answers   EMC, Jakson, L&T,

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What is difference between Dy11 & Dyn11 vector group transformer. Can both these transformers operate in parrallel.

5 Answers   Jaypee, JOY,

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What is ignition module of a CAT Gas Genset G-3508 Engine, Alternator SR4B Series. HOw its checked for correct functioning.Is it repiarable or replacable?

0 Answers  

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what is the difference between earth and unearth cable?

1 Answers   Essar,

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How can we calculate the motor frame sizes?

0 Answers   Essar,

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