Answer / mahesh

emf indused in gen from 0 to 180 =+ve;180 to 360=-ve half cyle

Answer / naveen

Negative half cycle in a generator when conductor or roter magnetic field movement crosses between 180 degree to 360 degree of armature widening.

why some transformer without breather.

1 Answers   GTS,

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What is the effect of impedance on the heat losses in case of AC system??? Does heat losses really depends on the impedance or depends only on resistive component only..??

4 Answers  

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when a 500kva-400hz single phase transformer operated on a 100hz supply then what will be kva required

2 Answers  

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What is reverse power relay?

0 Answers  

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which one is dangerous AC Power r DC Power for Electrical Shock ?

10 Answers  

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A circuit breaker on detecting fault will a. Open b. Close c. Open and trigger the alarm

2 Answers  

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Wind mill

0 Answers   Suzlon,

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why we use to transmit the power in three phases intead of single phase ?

4 Answers  

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why the motor running in delta connection ? it can be in star?

13 Answers   NTPC,

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HOW isolation transformer works.

2 Answers  

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why substation rating interms of 11 multiples???like 11kv/33kv iis there any special reason???

5 Answers  

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difference between temperature sensor and temperature switch

3 Answers   ABB,

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