How to do bus bar short circuit calculation for 230KV/11kv, 60 MVA Substation?

0 Answers   ABB,

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which motor gives constant speed?

7 Answers  

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What is the rating of circuit breaker needed for 300 KVA load in 33 KV supply line in a transformer of 33 KV / 415 Volt ?

0 Answers   Hira Group,

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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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Which formation is better in transmission lines - horizontal or triangular and why ?

2 Answers  

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What is means by MacAdam Ellipse?

1 Answers  

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What facility we get after CT secondary earthing and how?

0 Answers   Reliance,

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How to calcute the cable size for both HT and LT please specify the formula for that Regards Chethan C

1 Answers   Bhel, Student,

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how to decide the capacity of accl

0 Answers  

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Electromagnetic torque developed by the motor is compared to shaft torque. A less B same C depends on motor design D more

3 Answers  

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which mm cable should be used for 1.hp immersible pump motor for the distance of 330 metres?

0 Answers  

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How Earthing is prevents shock?Explain

4 Answers  

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