Answer Posted / sindhejs

With knowing the kW rating and voltage, the current can be
calculated as I=P/(sr(3)*V*pf). The pf can be assumed to be
as 0.8. After knowing the current, choose the 10% higher
current carrying capacity cable for the safety purpose.

current rating for differnt cables are different for same
size.Copper has higher current carrying capacity.

how to define tell me about self

1990

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Disadventage of cable-gland earthing if any ?

2223

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how to Select Lighting arrester? What r the parameters to be considered for the selection of Lighting arrester ?

1723

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How to calculate size of HT breaker with the help of Amp (current)? Please provide answers with examples.

2323

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defination of transistor controlled series capacitor

2628

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what is the relative size of single and three phase?

1881

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What is the difference between resistance grounding system and resistance earthing system?

1079

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How can a equal potential zone be carried out in conductors?

1328

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What is touch potential and step potential?

2146

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After taking shutdown of 11kv feeder, if you see 5kv by phasing stick in the cable side, is it possible to close earth switch in cable.

2352

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A 230V dc shunt wound motor has an armature resistance of 0,15Ω.When operating on no load at 650 rev/min the armature current is 6A . The motor takes a full load current of 85A. Calculate the full load speed if the field flux is (i) maintained constant (ii)reduced by 0,03

2002

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UG cable sizes were specified in sqmm. But practically its not coming to mesure. What's the reason for that? And how they specify the size of the cable?

1928

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What is the distance between body earthing and neutral earthing.?

5003

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On what basis the the size of Lightning arrester for buildings are selected ?

1648

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What is a fuse? How does it work? What are materials used?

2025

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