Answer / b sumanth kumar

Due to the property of residual magnetism.According to
residual magnetism property when motor is turned off then
the magnetism property of the poles do not lost some what
of the magnetic property will be present by this motor can
produce its back emf at the time of starting

DESCRIBEPNEUMATIC SYSTM OF ASH HANDLING PLANT

0 Answers  

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if field breaker of generator is closed prior to its rated speed on a power generating unit. what will be the effect on generator, unit transformer and starting transformer.

0 Answers   Power Plant,

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is the surge effect the solar panel, if yes so tell me how can surge effect the panel? explain brifly

1 Answers  

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electrical knowelge

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Size of the power cable like 1.5,2.5,4 sq.mm which area calculated from whick area or how specified the size?

1 Answers   MRF,

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What is Percentage impedence of a transformer? why it is expressed at a percentage? what is the importance of percentage impedence in case of a transformer?

0 Answers   Haldia,

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what will happen if transformer given dc input

5 Answers  

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how do u calculate CT rating for 10 mva transformer

2 Answers   Enercon,

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Why 5kv megger used to megger 6.6kv motor or 33kv transformer why not 500v?

2 Answers  

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What are the methods used to improve powerfactor ?

6 Answers  

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Capacitor is load free component but why ampere meter shows current when capacitor bank breaker close?

0 Answers  

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my 10 hp submersible pump is tripping when connected through ELCB.I have checked the megger value of the coil's with body.It was found to be 0.2mega ohm.that is leakage is there.But when connected to mccb it is not tripping.no leakage current in the motor.Is it safe to connect to mccb? what are the problem's will arise if future?also tell me in ELCB no neutral is connected to motor.than how ELCB was working?

1 Answers  

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