what is the use of pmg in exciter?
Answers were Sorted based on User's Feedback
Answer / t eswara rao
PMG means Permanant Magnet Generator.
In erlier days, we use DC supply for excitation supply. But
there were occations of this DC supply failures.
So now we are using PMG. It is having permanent magnetic
poles on its totor. It means the magnetic flus is
independant of external DC supply. The voltage produced in
stator is directly proportional to the RPM of its rotor.
By implementing PMG we have avoided 1. carbon brushes. 2.
External DC supply.
Is This Answer Correct ? | 4 Yes | 1 No |
Answer / k.prakashchandra
PMG was being used for governor speed control for radial
feeding generators, earlier.
Is This Answer Correct ? | 0 Yes | 0 No |
What is cross over distortion? How it can be eliminated?
why only exciting current is shown not primary current in transformer???
Main Differance between Primary Distribution & Secondary Distribution Of Electricity....?
how is motorized megger operate?
What is the Diesel consumption between 82KVA DG Set and 180KVA DG Set for 1 hour.
Where the ON LOAD TAP CHANGER is provided in the setp up transformer?
does the transmission line model also requier active power in no-load operation?
what happen if one of 3-phase line has a much higher load when we are using delta to star transformer? how we can over-come from that?
hi friend i am going too attend for hpcl in this month please help me by sending written test question papers i am in the stream of E.E.E
block diagram of 2 ups system connected in parallel mode?
how is classified voltage level in generation,transmission & distribution system?,
what is the difference b/w ground & virtual ground?