Answer / nestor s.

Servo motor is a motor that gives an exact positioning and
send feedback. The advantages of this motor over induction
motor are , it can be used in positioning, have a constant
or high torque in starting, sends feedback for speed and
positioning, can be used in industrial machineries which
needs precise positioning.

whenewher three phase supply is given to induction motors revolving/rotating field is created & rotor rotates.When the three phase supply is given to three phase transformer then revolving,/rotating field is created or not? if not why?

1 Answers  

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Transfer function is == ? a. Mathematical model b. System with no physical structure c. Can be calculated through differential equations

1 Answers   CCP,

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What is mean by hot and cold loop testing? What is the difference between them?

0 Answers  

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For my plant the electricity department charging some amount for t/f losses. May i know what are transformer losses

1 Answers   L&T,

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i am studying in final year can i allowed for 23rd UES of Indian army

0 Answers   TCS,

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What are test signals and their significance?

0 Answers  

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Transformer TTR test procedure

2 Answers   Descon,

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one hp 3phase motor what generate power factor

1 Answers  

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what will be the efficiency off x'mer during no load test and during short circuit test

1 Answers   GPSC Gujarat Public Service Commission,

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What is the gain of 1-s/1=s at 1 rad/sec?

3 Answers   NPCIL,

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Define protection core in CTs Ex. 5P10, 5P20 etc.

1 Answers   HPL,

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What type of tranformer generaly at soft wares like capacity 2000 kva 1800 kva etc iam confused it CT or PT OR distribution tranformer

3 Answers  

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