what is the meaning of Dd0yn11

2 Answers  

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Why is starter necessary for a three-phase induction motor?

37 Answers   BMM, Essar, Hero MotoCorp, ITI, Maruti Suzuki, Supertech, Watt,

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Why VCB is required and ACB is also require? what is the BDV of Trafo of 11/33 KV

1 Answers  

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If a 1.5V,3W torch light bulb is connected in series with a 15HP/11.19KW,230V single phase motor and the combination is connected against a 230V supply and switched on than what will happen keeping all other parameters as it should be A)the bulb will glow normally B)the bulb will not glow C)the bulb will glow with extra brightness D)the bulb will burn out and if a fuse is connected to the above circuit will something happen to the fuse and what about the single phase motor will it be affected? Please explain with derivation

4 Answers  

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what are the safety in transformer,diesel generator,ups, chiller plant,h.t. , L.t. , sewage treatment plant(stp),water treatment plant(wtp), fire. plz ans. me in detail if you know any of the mention above. i urgently need

2 Answers   Claris Lifesciences, EFS,

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What current can be carried by 25 sqmm copper cable safely?

6 Answers   Bharti,

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1. What is differential relay? How it operates?

3 Answers  

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I am a electrical engg. diploma holder,applied for junior engineer (electrical),Kolkata RRB. Have I to attend all electrical,mechanical&civil portion in written exam.???

0 Answers   RRB,

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How to detect voltage vector shifting in interconnection protection.

0 Answers  

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how to select the double earth conductor if 21A full load?

0 Answers   L&T,

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what is ring system ?

3 Answers   Bhel, Sabic,

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what are the particle used along with silica gel in transformer breether,explain their functions.

4 Answers   ME, Oil India,

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