what is post close & pre close of trip circuit supervision relay in circuit breaker control scheme?

2 Answers   ABB, NEK, Power,

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what is the meaning of pi value?

1 Answers  

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what is the difference between earth and neutral.

9 Answers   DLF,

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Why we use duplex coil and hook switch in telephone system?

0 Answers  

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2. What are the parameters of EHT sub-station?

0 Answers   APGenco,

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function of soft starter .

2 Answers  

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what is the effect of higher value of GD???

0 Answers   VEPL,

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I have 2 Nos of 2500kVA 33/0.415V cast resin transformers. How to decide on ampere rating of HT Panel? Also advise me how many panel RMG i have to consider whether 4 panel ok?

1 Answers  

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What is the Difference Between MCCB & ACB & VCB

58 Answers   Absotherm, Delton, Divine, JLL, Jyoti Ltd, Kirloskar, L&T, RPP, Siemens, TCL, TCS, Teekays, YSJ,

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why after termination of HT cable armoured earth connected one end, why not connect other end.pls tell me correct answer.

3 Answers  

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I need the recommended size for a 3 phase transformer at 13.8 KV Primary and connected loads of 3000 kVA at 4200 volts and 2375 kVA @ 480 volts AC.

0 Answers   Duke Energy,

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What is the implications when 600 hp motor is started when the unit is running with Transformer of capacity 1500 KVA and DG set of 1000kva

0 Answers   Shasun Chemicals,

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