Interested to Buy Any Domain ? << Click Here >> for more details...
Why DC excitation is used for alternators? Why cant it be AC?
- 35 Answers
- 78521 Views
- ABB, Ace Info, Alstom, Shalivahana Power, I also Faced
- E-Mail Answers
Answer Posted / b.t.ramakrishna rao
a current carrying conductor placed in a magnetic filed experiences a force
if d.c excitation is provided a constant magnetic field is produced hence the rotor conductors can experience a force.
where as if a.c excitation is given an alternating magnetic field is produced which results zero net magnetic filed,hence the rotor conductors fials to experience a force
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
PLS MENTION QUESTIONS ASKED IN IOCL INTERVIEW FOR ELECTRICAL EGG??
We have two parts in generator, electrical & mechanical. how it works?
WHAT IS DIFFERENCE BETWEEN CAPACITOR AND CAPACITANCE?
What is process of anneling transformer core
please send 5yearje solved papers on my email himmatsinghnathawat@gmail.com
why we setting 95 deg and 105 deg in wti and oti of distibution transformer ? give the reson for that ?
In 90 kva alternator that produce the output voltage is 115(p-n),200(p-p) at 1500 rpms means what ampere it produced ?
what is basic difference betmeen normal & flame proof motor??
i want to know about torque of slip ring induction motor
When we need up only in o/p 440v, so why we use directly in 11kva in input?
how brushed dc motor operating ?
Why back emf used for a dc motor? Highlight its significance.
if i get a drop in my 1st year and the i clear my 2nd year and 3rd year all clear and i dont have any back logs so can i be able to sit in campus selection??
how to calculate the fault in substation
my diploma certificate in my higher education college
