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how to calculate circuit breaker capacity

6 Answers   Siemens,

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what is the advantage of NiCd battery over Lead acid battery?

2 Answers   BARC,

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how to test power transformer.YNd11

1 Answers  

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If VFD is On but no starting commond on it. so how many outpout voltages of VFD

1 Answers  

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why we do 2 types of earthing on tranformer ie:body earthing & nutral earthing , what is function. i am going to instal a 5oo kva tranformer & 380 kva DG set what should the earthing value

8 Answers   Altrion Technologies,

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anyone please send transformer parameter design formulas & details of tap changer ? plz i have interview this week its more helpful for me ?

1 Answers  

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For a 50MVA (138/69/13.8 KV) transformer, what would be the maximum demand in order not to exceed 80% of its operating capacity.

2 Answers  

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we want low electricity at lower speed of fan.what we have to do?

5 Answers  

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why 400Hz is used for aircraft systems ?

14 Answers   Cabin Crew, Jet Airways,

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what is diffential relay? testing proceure?and transformer reach Over load thet time differencilal relay operate or not ?

5 Answers  

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what is the use of back emf?

1 Answers  

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draw the full wave and half wave circuit of 3 phase system and inverter circuit used in ups 

1 Answers  

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