what is the working principle of Brushed alternator ?
without exictation how we can give dc supply to rotor ?

Answer Posted / k.prakashchandra

Brushed gen has shaft mounted self excited dc generator ,and
in large gen there are pilot and main exciters.Starting
voltage is obtained from residual magnetism in poles of
pilot exciter.Then with rheostats, required voltage is
developed in main exciter to supply dc to rotor with brushes
and collector(slip) rings.For varying exciting current, the
main exciter rheostat is used with the pilot voltage fixed.

Is This Answer Correct ?    1 Yes 0 No

Post New Answer       View All Answers

Please Help Members By Posting Answers For Below Questions

how to calculate power consumption in slip ring motor at different step


What are n circles?


How to Design green buildings services? What is the advantage to design green building?


What is the difference between a verilog task and a verilog function?


what is per unit calculation?looking for simple and strong explanation thk u


What is formula calculation size cable wire ?


why asa method ZPF method is more accurate than ASA method?


In the magnetic fluxes, what is the role of armature reaction?


We have 110Vac ,10A ac supply which is converted into 110VDC & How much DC current? which factor is reqired for dc current calulation?


what is earthing transformer? draw the winding dia.of earthing transformer.


Can you any one explain application of buccholz relay operation and pressure relif device operation of power transformer


What is lifting power for 1 wb/m2 and 1 A magnet?


what is the difference between elcb and rccb ?


During regenerative breaking= A rotating magnetic field is reversed B slip is positive C torque is positive D slip is negative


Why neutral is not used in three phases dol starter