why we use star connection on the primary side of a transformer?

5 Answers   DRDO, TCE,

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why power is generatd at 50 hz only..? can we do this on another freq...?

7 Answers  

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ro plant grundfos bm30type pump.we start the pump using siemens 3rw 4423-1bc44, 30kw soft starter. bur its failier frequently. so we planed to change the dol starter. sp please tell me any budy its possible or not翿შ†

1 Answers  

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how much flux density of CRNO core

0 Answers  

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define the power factor in one word

12 Answers  

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In CT,which terminal(s1,s2) need to be grounded?

2 Answers  

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In a single phase converter, the no. of SCR conducting during overlap? a.1 b.2 c. 3 d. 4

3 Answers  

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Zone of protection and tripping scheme of arc protection relay.

0 Answers   KSEB, L&T, Siemens,

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what is the principle of operation of tungstun bulb ??

0 Answers  

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how to calculate cable size with respect kw

0 Answers   SPMI,

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What is the Difference between Power Swing and Out of Step?

1 Answers  

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What current flows in the transformer primary when its secondary is open?

0 Answers  

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