Answer Posted / abdul hameed
first we need DC current in the rotor second we need AVR this device controlled the the voltage which feeding the rotor.this
method is suitably for brush and brush less generator
| Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
what is ATS & RING MAIN UNIT in Distribution System?And its Function.
What are the Full Forms of TVM, MTL, CVT ?
y we use neutral,all r told its used to for closed path..k its a just used to closed path,in a transmission line y we put same conductor used n both phase and neutral..if we use less than phase conductor in neutral mean we ll reduce cost its right r wrong..if we use mean any problem occur in transmission line..
How DC earth leakage currents can be reduced ?
what is the use of commutator in dc motor if we supply ac ? commutator is used to convert ac to dc.and it is used to arrange the flux in unidirectional in case of dc supply. if we give ac as supply to dc motor what is the use of commutator?
how many electricity poles are there and what are the names and their sizes.
What is the difference between vector surge relay (78) and Pole slip relay (98G)
What are the advantages of a three-phase system over a single-phase system?
how to select diiferent power transformers of same capacity on no load loss and full load loss by economical point of view.?
whether starting current is limited to rated current of motor through soft starting or it exceeds the rated current?
how does a shunt reactor maintains the bus voltage???
Why 30kw 40 hp 4 pole 3ph induction motor over heated?any steps on reduction in heat?
What is the difference between shortcircuit current, rated current of cable & MCB with example? What will be the size of cable required for 5.5 KW motor (Full load current 10 Amps approx.), Starting current with DOL is 120 Amps. Aprrox. Short circuit current with LLLG fault is 2000 Amps Approx.
what types of electrical & mechanical test conducted in switchyard?
How can you calculate the size of the down conductor cable for the lightning protection system. Is 70mm2 cable can replace 95mm 2 bare copper cable when the copper tape size is 25Wx3 thk mm.