Answer Posted / srinu
back emf is produced in all motors due to rotation ,motor act as generator and produce emf ,this emf is oppose the applied voltage,this is called back emf,this is directelly propostionl to rpm
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
If we have to feed a housing complex having load 8MVA, than what would be the better option, either we first step down 33kv supply into 11kv & than 430v or we proposed no of 33/.44 kv transformer, also which option is economical?
What is the meaning of floating point earthing in battery backed systems ?
How to arrange a hous hold earthing system to keep minimum earth resistance( below 7ohms).
what is load despatching
What is the comparison of PILC and XLPE cable
why you don not show protection and type of isolation in key single line diagram?
What is ramp signal?
i need the curve duty cycle and amper for (150 kva @50% dyty cycle) transformer turn ratio :19 and vin 400
why we cannot protect 100% winding of an alternator by using differential protection?
How to Calculate The Neutral Earth flat design calculation for the Synchronised generator (Gen 1-650Kva, Gen 2-725Kva
after how many spot we must chang secondry cable in portable spot welding gun?
hi friends how 3 phase converter functioning ?what is working principle of rotory phase converter ?
How can we calculate the transformer rating if the load calculated is 1000KW (11Kv Supply)?
what is the voltage regulation for unity and zero power factor?
can the measured percentage error during calibration of single phase energy meter be negative?