Answer / rama moorthi m

earthing and grounding both are same,two type of grounding
is there,1)system grounding-it is used to protect the
system.Eg.CT,2)body grounding-it is used to protect the
unwanted shock form body.neutral is return path form the load,

3 phase induction motor connection star or delta while using ac drive motor is .75 to 5.5 kw

0 Answers  

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how we select ac fuse rating of an power inverter???

0 Answers   Simco,

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what are the difference between PLC and embedded

0 Answers  

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Why the cost of CT increases with the decreasing of its CT Ratio (Technical Reason)?

2 Answers   Vedanta,

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Auto transformer starter gives the same effect as star/delta strater if its turn ratio = A 0.5 B 0.67 C o.66 D 0.577

1 Answers  

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A powerplant has 8 gensets operating in grid parallel mode. In one genset sometimes there is pf variation and kvar variation. The plant operates in pf mode. When this variation is observed the load is stable, voltage is also stable, freq and genset speed is also stable. How will you check the functioning of pf card. What shall be the ideal output vdc of the pfc, from there it is input to AVR?

0 Answers  

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why we use CVT (capacitive voltage transformer)in switch yard?

5 Answers  

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How to calculat the size of copper& aluminium wire ?

5 Answers   Hindalco, IOCL,

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what is feeder?

2 Answers  

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Can we install and run MCCB suitable for 440v 3Phase 4wire system, on a 220V 3Phase 4Wire System.

3 Answers  

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why we step down voltage level from 33kv to 11kv and 11kv to 415v.Instead we can step down voltage from 33kv to 415v directly using single transformer.

12 Answers   ABB, Adani, Central Electricals, Electrical, HCL,

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can anybody send the rrb chennai &rrb bopal question papers of 2006&2007.My exam is on 12 oct 2008.Its urgent

0 Answers  

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