what do you mean by class PS CT and what are technical details needed for calculating it?

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How to calculate CT ratio for 11KV 1500KVA Transformer 500KVA MD and 1400KVA connected load ? Note:- As per MSEB(Maharastra state electricity Board)

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What is the name of oil which is used in transformer?

3 Answers  

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When we give supply to a transformer 11 kv and we get 415v from it, so when we give supply to same transformer 415v on ht side what we get? and When we gives supply to any transformer to L.T. side 415v or 220v What supply is on H.T. side?

2 Answers   Ashoka Electricals,

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How to find Cable size? Caterpillar generator produce (Two generators) 127*2=254 amp at 11 kv . What would be the cable size (XLPE) to supply 256 amp at 11 kv? Air or surrounding Temperature is 32 degree C. Cable will go under ground at 2.5 feet depth. Group Rating Factors is 3 cables. Clearance between cables is 7 cm. Soil Temperature (Ambient) 28o C Soil Thermal Resistivity is 1.2 K.m/W I would like to use 3 separate single core instead of using 3 core cable. Some says I should use three separate single core 120RM cables. Some says 70RM .some says 95. I m totally confused. Is there ant specific rule to determine cable size? What would be the LT cable size to flow 500 Amp current? Ifte My e mail address is ifte13@yahoo.com Anyone please send me the answer to my e mail address, i will be very glad.

1 Answers  

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Which of the following are ill suited for energy efficient motors application?

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How to determine the short circuit current for breakers and VCB.

1 Answers   Sabic,

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how to calculate the ct burden?

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what is phase to phase fault? what is line to line fault?

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What is power in wattage of 8.5 TR AC

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why ht alternators gland plats using brass?

1 Answers   ONGC,

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In simply words(not explain any formula )what do you mean by power factor.?

5 Answers   DRDO,

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