why transformer has more efficiency compare to rotating machine?

3 Answers  

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1.what is difference between ATS & STS main use. 2.what is difference between ACB& VCB With symobles,and main partes, manimum range. 3.How many types of relays and main function.

0 Answers   Visa,

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what sq.mm copper pvc wire need for ac load current 25amps for 230v ?

4 Answers   Khadamat, Siemens,

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why high speed tripping relay will be used in tripping circuit why not normal relay

0 Answers  

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for a 5hp motor to operate from 100kva generator ,what size of cable required in sqmm.

2 Answers   DSC, Indraprastha Gas Limited IGL, UltraTech,

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give 5 differences between relay and contactor

1 Answers   Texas,

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why firewall is build up between two transformer (220/11kv,50MVA)?what should be the firewall height?what is the clearance between firewall and transformer?

2 Answers   Siemens, Tous Stadt,

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tell me any book for current n potential trasformer with full knowledge ?

1 Answers  

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on what priciple transformer works on?

5 Answers  

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what is preventive maintenance? and what is predictive maintenance? and what diffrence both?

3 Answers   Volkswagen,

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Why water bubbles when D.C. Current is passed through it? Why not when A.C. Current is passed?

0 Answers  

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What are protection of transformer on HT side & on LT side?

4 Answers  

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