Answer / ashish sharma

STAR DELTA...BCOZ REDUCED VOLTAGE IS APLLIED IN STARTING AS THE STARTING CURRENT IS VERY HIGH...IN STA CNNECTION VP=VL/UNDER ROOT 3...

Answer / guest

delta star

Answer / deepak verma

3 phase motor connected in stardelta connection because high value of current required to motor to attain its rated speed which is obtained by star delta....its increse the starting current by root 3 and reduce the voltage by root 3

The power consumption, in case of centrifugal loads (like pump, fan, blower etc.), proportional to ____.

2 Answers   BSNL, NTPC,

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WHERE to use CVT & PT.

11 Answers   Suzuki,

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LT cable fault chaecking equipment and to find out the distance at what distence it failure . Name and where it is available?

0 Answers   Himatsingka Seide Ltd,

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A IS TWICE AS GOOD A WORKMAN AS B AND TOGETHER THEY FINISH A PIECE OF WORK IN 14 DAYS.THE NUMBER OF DAYS TAKEN BY A ALONE TO FINISH THE WORK IS 1.11 2.21 3.28 4.42

3 Answers   Ramky,

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How to do the REF Stability test for power transformers in Site?

1 Answers   Escorts, Siemens,

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What type of protective system we uses in L.V. distribution panels?

6 Answers  

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What are HT & LT Cables? What are their values?

3 Answers   IOCL,

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Is phenomenon of resonance is harmfull fr the machine? if not or if yes please explain it?

0 Answers   Bhel,

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why the tapping of transformer on ht side??????

12 Answers   CTS, OPTCL, Visa Steel,

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What is an Air COmpressor

0 Answers   DLF,

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some practicle study shows that the reactive power at the receiving end is not equal to the reactive power at the sending end.But according to theory the reactive power is exchanged by different parts of the network – capacitors and reactors permanently, but is never consumed or produced. Then Where that reacrtive power loss occuring?is there any formula to calculate reactive power loss?

3 Answers  

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which motor gives constant speed?

7 Answers  

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