Why red,yellow,green colours lamps are used in the traffic control?

2 Answers   Samtel,

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why normally Generator rating are between 11Kv to 22Kv?

2 Answers   IFFCO,

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What happen if LV supply is fed to a HT motor?

19 Answers   ITC Infotech, Jindal,

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How Humming noise generated in starter motor which was used the start the engine in a vehicle/car/Truck?.Moreover Starter motor was operated in DC power supply. Can you guys clarify ?

2 Answers  

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you are a electrical student, why are you coming for software job.

4 Answers   TCS,

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For refrigerators the motor current is raised beyond its rating on both conditions when the voltage of the system is more(say 270v) than the rated voltage(220v) as well as when the voltage of system is less(say 160v) than normal voltageof 220v, why explain?

0 Answers   Electrical Tech, UPSE,

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why the air gap is necessary in the transformer core

1 Answers   Eskom,

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WHAT IS INERTIA,AND WAT IS TORQUE.

0 Answers  

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we erected (48HP)63kva dist transformer and incoming from 11kv line,out going is 415v domastic line 2.04 km.for that actual output current is 84A. what are the losses and final output current.

3 Answers   Essar,

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Sir, plz tell me the relation b/w KW and frequency in Variable frequency Drive?

2 Answers  

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Who many reason of ignition fail ?

0 Answers  

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What is the operating principle of turbo-generator.

0 Answers  

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