Answer / guest

Cogging can be reduced by number of rotor slots prime to number of stator
slot and also by skewing the rotor slot

Which factor decide the colour of the light emitted from a Led?

3 Answers  

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why a pure inductive circuit has zero power output?

8 Answers  

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My question is whether bellow formula is correct to find bus size for 46kA for 0.5 second & what is RT in bellow formula. formula to calculate the size of busbar to withstand the thermal stresses due to currents with duration of 0.2 sec to 5 sec. Sp = RT( I x I x t) / K Where Sp – is the cross sectional area of bus bar in millimeters. I -    is the value of AC fault current. t -    is the operating time of disconnecting device in seconds. K –  is the factor depending on the material of the conductor, insulation and initial and final temperature. Value of ‘k’ for copper is 143.

0 Answers   Premier,

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how withstand of hi-pot test outputs of transformer wire 2.5mm

0 Answers  

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sir i want previous entrance exam papers for written test

0 Answers   Vizag Steel,

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How will you calculate the correct KWH value if your CT is 600/5 and your KWH meter is rated for 100/5

1 Answers   L&T,

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What is the use of arc chute in ACB?

7 Answers   lenovo,

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IN THE CASE OF AN ELCB, IF THERE IS ANY UNSTABILITY BETWEEN PHASE AND NEUTRAL IT MAY TRIP. BUT MY QUESTION IS WHEN A LOAD IS CONNECTED IN BETWEEN P AND N, THE LOAD CONSUMES SOME POWER AND THERE IS A DIFFERENCE IN NEUTRAL WITH RESPECT TO THE PHASE. THUS ACCORDING TO ME, THE ELCB WILL AUTOMATICALLY OPERATES WHEN EVER THE LOAD CONSUMES-- I KNOW IT IS WRONG. BUT THE SOLUTION IS?????????

1 Answers   KSEB,

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What r the specification furnishid in motor name plate?

5 Answers  

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what happens to current , when voltage drops .?

11 Answers  

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Can step down transformer works as step up one???

2 Answers  

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what is interpose vt where it is used and y it is used?

0 Answers  

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