Answer / guest

we all know that resistance arises due to the collision of
electrons with other atoms n electrons... the molecular
structure of conductor are in such a way that it offers
less resistance to the flow of electrons

in case of three phase induction motor,when it is connected to three phase supply,why the magnetic field is rotets around the armeture?

5 Answers   Hindalco,

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in my working site. momentary jerck in electrical supply ocurred frequently which cause of multiple losses in our electrical equipements. how can we protect our electrical machines and equipements in this situation.

1 Answers  

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Which motor has high Starting Torque and Staring current DC motor, Induction motor or Synchronous motor?

5 Answers   BSL, Elite, TTA,

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What are the classifications of heating element?

0 Answers   BARC,

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directional relay is typically used to respond in fault condition who it can be used just as reverse power protection which purely senes direction reversal to operate a circuit breaker?

1 Answers  

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) why transformer cannot rotate though the principle behind induction motor is similar to a transformer

3 Answers  

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How to calculate the cable size in sq. mm. when the load is given in KW?

3 Answers  

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what is allowable current flows from phase to ground with out tripping the breaker

1 Answers  

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What is the difference between AC Drives and DC Drives?

14 Answers   College School Exams Tests, La-Gajjar Machineries, LG, Schneider, SMEL,

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In what situations relays are used in Circuit breaker? In Above what rating of Circuit breaker the relays are used? Why relays are not used for CB like MCB?

0 Answers   Elektrotek,

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how to CHECK CT AND PT AT THE FAULT OCCUR IN GENERATOR RELAY PANEL .

0 Answers   Birla,

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Can we use 1.1x 2 split air-conditioning at a same time in 2kw power loadar

1 Answers  

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