Answer / j.kesavan

mostly use in mine site HT motors 3750kw,1750kw,crusher
side thay are using slip ring motors,conveyers using
inductionmotors,coveyers thay are using variable speed
drives.

Answer / ck

In mines generally induction motor is used and a motor is used in mine where there is a danger of explosion

errection check list for transformer maintenance

0 Answers   RRB,

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i am working in a grid substation,TNEB having 13 yrs experience. Am I eligble to get apply for c licence now?

3 Answers  

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In electrical locomotive engines, the DC series motors is being used as traction motor. But in new engines like in WAP7 & WAG9 the 3-phase squiral cage induction motors has replaced them. So can someone tell me the advantages of induction motor over dc seris motor in engines points of view....???

0 Answers   RRB,

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HARMONICS ARE ALWAYS IN INTEGER LIKE 2ND OR 3RD HARMONICS,NOT IN FRACTION LIKE 0.5 HARMONICS.....????????

2 Answers  

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what material is the electrical housing wire made of? is there any difference for the telephone lines?

0 Answers  

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Phase control and integral control are used for?

0 Answers   NPCIL,

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what is the use of Antipumping in HT breakers.

9 Answers  

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we have two generators different capacity on 15 MW and other 6MW at 11 KV , 15 MW gen. bus short level current 40KA,and 6MW short level current 25KA,, length of cable 100MTR between 6 MW from 15MW gen. for bus coupling . kindly tell any one can we use both NGR OR one NGR from any GEN. BOTH NGR has diff. rating. Tariq pakistan

0 Answers   RYK Mills,

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Why we generate power at multiple of 11 i.e 11kv,33kv etc.

9 Answers   DTV Solutions, Havells, TCS,

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Pls say , how we calculate lux / sq.ft, which formula used for calculation

5 Answers  

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what does the transformer connection symbol YNaod1 mean ?

3 Answers  

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What is the basic difference of turn ratio & transformation ratio for a transformer?

8 Answers   IGT,

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