If excitation will increase, then what will be the effect
on power factor? Will it decrease or increase?
Answers were Sorted based on User's Feedback
it will depend upon a machine.
alternator:
excitation current will increase means power factor will decrease bcoz E is increased & resultant E induced and load current phase angle is reduced so power factor reduced
synchronous motor
on over excitation it will increase a power factor.
Is This Answer Correct ? | 28 Yes | 2 No |
Answer / gulshan goyal
it depends on the machine.If it is a motor and if we
increase excutation power will shift from lagging to
leading.as we increse the excitation angle will first
decrease as in lagging side than angle will increase in
leading side and hence the power factor will initially may
be .8 lagging than .9L,.95L,1 than .95 leading ,.9Ld,.8Ld
Is This Answer Correct ? | 7 Yes | 5 No |
Answer / vishal
if exitation increase then power factor decrease, and if
exitation decrease then pf increace
Is This Answer Correct ? | 7 Yes | 8 No |
Answer / j.ramkumar
the alternator load increase the excitation will increase
same time pf decrease we use our avr auto mode it will
maintain automatically
Is This Answer Correct ? | 4 Yes | 9 No |
What it the purpose of parallel phasing transfomers??
What does dny11 stand for?
what is ceiling voltage in an exciter?
1 Answers KEPCO Energy Service Company,
on which power factor synchronous motor run
what types battery chargers are there?wanted with details.
What is the differance between negative dc voltage and positive dc voltage because some circuit uses -24,-5,-12,- 15,volt dc supply
10 Answers eLab, Hero Honda, NTPC, Suzlon, Teradyne,
how the reverse power relay acts..
What is A check, B check, C Check & D check for a diesel Generat
0 Answers Jtekt Koyo Bearings,
Why is the generator rating always in kVA and motor rating in kW?
All tape of electrical questions Answers tape of motor transformer e.o.t crane
0 Answers Afcons, Honeywell, Manlift, SIMS,
what is the form factor of DC voltage
Difference between induction motor and synchronous motor? i Think Synchronous motors operate at synchronous speed (RPM=120f/p) while induction motors operate at less than synchronous speed (RPM=120f/p – slip). Slip is nearly zero at zero load torque and increases as load torque increases am a right pls guide & send Other Comments