Why control of DC motor is simpler?

0 Answers   BARC,

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What is meaning of DRU in gen.of AVR.

2 Answers  

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What does the kvar means?

0 Answers  

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A 15 kw squirrel cage motor having a maximum efficiency of 90% on a continuous full load has temperature rise of 42 degrees celcius after 30 min and 52 degrees celcius after 1 hr under the above operation conditions. a) calculate its final steady state temperature rise on continuous load and the heating time constatnt. b) if the motor is operated on a short load for 9 min estimate its temperature rise. c) calculate the maximum overload that can be applied on a short, 9 min rating so that the temperature rise is the same as the final steady state temperature rise on continuous load.

0 Answers  

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th how could we differentiate between armoured copper and armoured aluminium cable what is the basic application? why we prefer the armoured copper as compared to armoured aluminium.

0 Answers   HMC,

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What is the name of powder which is used in inner side of a cable? and purpose?

1 Answers  

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A cylindrical wire is compressed in length by 10%. The percentage decrease in the resistance will be?????

8 Answers  

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why compound generator is used in generating station?

2 Answers  

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How to calculate the cable size for particular load

2 Answers   Knight Frank,

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What are the safeties in elevators?what is the use of governor in elevator?

3 Answers   JLL,

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Mention how NPN and PNP transistor works?

0 Answers  

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im working in one private compeny in gujarat. i was complet diploma electric in 2010 from gujarat technical board. now i want electric supervisor licence in gujarat but i dont't know when i apply? plz give me address of the licence dippartment office in gujarat. gandhinagar

0 Answers  

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