How to distinguish whether MCB is DC or AC looking at it physically

0 Answers  

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Why is shaft current insulation required on large motors & when should it be checked i.e. before or after assembly?

2 Answers   Aramco,

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can any one provide some material?

1 Answers  

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Why scr and igbt used in  ups systeam ????

1 Answers   JLL,

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how the 3phase induction motor is running in 2phase supply with help of capacitor?

1 Answers  

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I need model question papers for RRB section engineer Chennai... Please send to my E-mail Id:- maitheerainbow@gmail.com

0 Answers   NTPC,

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what is feed back and what are feed back amplifiers?

0 Answers  

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what should be the BDV value Of 11/132kv power transformer

3 Answers  

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i have old tape recorder speakers(analog).nw i want to use it for my computer system.can i use it to my computer systeno m by using digital to analog converter??? what changes should i do in the system????

0 Answers  

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Why is earth connected to neutral on transfomer installations

2 Answers   VACC,

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How to identify Motor leads in their order coming out from winding without tag (U1, V1, W1 & U2, V2, W2)?

6 Answers   ABB,

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how to check the earth resistance value& what is the minimum earth resistance for good earthing sysytem.

33 Answers   Brookfield, BSNL, DMRC, Epoch, KPTCL, Polycab, Power Control, SIEA, Siemens, Wipro,

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