What is the use device of the grid.

1 Answers   Premier,

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If DC supply is given to a transformer it may a) Work b)Not Work c)Give lower voltage than the rated voltage on secondary side. d)burn the winding

12 Answers   wbsedcl,

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how can we save enegry by using VFD for Resiprocating Air compressor which is having more unloading running hours

0 Answers   MRF,

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why diesel tank is earthed

1 Answers   ABB, NTPC,

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How can you start-up the 40w tube lite with 230v AC/DC without using any choke/Coil?

2 Answers  

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in ONAN type transformer winding temperature is lower than oil temperature at evening time but morning winding temp is higher than oil temp what is the reason?

2 Answers   Areva,

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Size of the 60Hz and 400Hz transformers is a) same b) 60Hz Tr s larger than 400Hz Tr c) 400Hz Tr s larger than 60Hz Tr d) None of the above

5 Answers   Ecil,

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WHY THE DIMENSION OF TWO SAME RATED MACHINE IS DIFFERENT ?

0 Answers  

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What is the difference between electronic regulator and ordinary rheostat regulator for fans?

0 Answers  

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What is size 00, 01, 1 etc., in HRC fuse types?

0 Answers   Jaypee,

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checking procedure of capacitor based motors.used in fans etc?

0 Answers   Badve,

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why CT ratio stand for 50/5, 100/5, 25/5.

11 Answers   ABB, Ramky,

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