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Question
If AVR fails in DG set what will be the affect?
 Question Submitted By :: Anmoorthy
I also faced this Question!!     Rank Answer Posted By  
 
  Re: If AVR fails in DG set what will be the affect?
Answer
# 1
Failure of AVR means failure of Excitation, hence DG will
continue running but no EMF (Voltage) will be generated.
 
Is This Answer Correct ?    62 Yes 12 No
Sachin
 
  Re: If AVR fails in DG set what will be the affect?
Answer
# 2
if AVR OF DG SET FAIL THEN EMF=0 AND DG WILL BE INDUCTIVE
LOAD IT WILL DRAW REACVE POWER FROM GRID .
 
Is This Answer Correct ?    14 Yes 20 No
Rahul Shukla
 
 
 
  Re: If AVR fails in DG set what will be the affect?
Answer
# 3
if AVR fails in DG sets emf production will be zero signal
will be sent to Governer engien will shut down
 
Is This Answer Correct ?    8 Yes 25 No
Lokesh
 
  Re: If AVR fails in DG set what will be the affect?
Answer
# 4
I think
AVR = Automatic Voltage Regulator
Regulator Means it will controls the unit.So If AVR fails
in DG set we con't get constent continiues o/p voltage. Any
comments ?
 
Is This Answer Correct ?    33 Yes 2 No
Saleem.d
 
  Re: If AVR fails in DG set what will be the affect?
Answer
# 5
If AVR fails in DG sets,it means no d.C. supply recevied
by DG sets Coils, no magnetic field made & coil does`t
excited, result no output given by sets.
 
Is This Answer Correct ?    28 Yes 4 No
Dharamvir Punia
 
  Re: If AVR fails in DG set what will be the affect?
Answer
# 6
Failure of AVR means AVR will not deliver the excitation
voltaage to the exciter winding.Hance Excitor winding will
not be able to generate any excitor voltage.So there will
be no any field votage to rotor field winding and due to
this even if DG continious running but there will be no out
put voltage
 
Is This Answer Correct ?    31 Yes 4 No
Rajesh Patel
 
  Re: If AVR fails in DG set what will be the affect?
Answer
# 7
then no emf will induce, because rotor is not energized.and
rotor will not become magnet at all.
 
Is This Answer Correct ?    9 Yes 2 No
Sunil Datta
 
  Re: If AVR fails in DG set what will be the affect?
Answer
# 8
AVR-AUTOMATIC VOLTAGE REGULATOR. AS THE NAME IMPLIES IT IS
USED FOR THE REGULATION OF VOLTAGE & VOLTAGE BUILD UP
PURPOSES.IT CONSISTS OF (VOLTAGE SENSING UNIT,VOLTAGE BUILD
UP CKT,PULSE WIDTH MODULATION CKT,etc...,).OBVIOUSLY IF AVR
FAILS THERE WILL BE NO VOLTAGE.SO DG RUNS WITHOUT VOLTAGE
AND THERE WILL BE NO LOAD.
 
Is This Answer Correct ?    9 Yes 2 No
Trilok Kumar
 
  Re: If AVR fails in DG set what will be the affect?
Answer
# 9
IF AVR fails in dg set then the exitation voltage is zero
and we do not get any output voltage.
 
Is This Answer Correct ?    15 Yes 0 No
Sandeep Jhajhra
 
  Re: If AVR fails in DG set what will be the affect?
Answer
# 10
it depends upon which type of avr is that .. if its an
static one than it will get tripped and no dc output and dg
set will not generate any voltage. but if avr having no
interlock with excitor than if avr fails than it will only
affect the regulation of voltage as excitation voltage is
already generating and being given to alternator so output
will be there but non-regulated
 
Is This Answer Correct ?    5 Yes 4 No
Chauhanalpesh
[Nirma Limited]
 

 
 
 
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I have carried out wiring for lighting in a shed in Industrial area which contains Metal halide lamps & have balanced in 3ph.Now when we put all the lines on in the daytime the current taken at 3phases at MCB comes to be equal i.e.28,29,28Amps respectively but in the night time i.e between 7p.m.to 11p.m. at the same MCb the current is 52,59,62Amp, though I have fit 63A MCB it is tripping in the above period.What may be the reason.? Note: This industry is located in industrial area where majority of steel ingot manufacturing plants are there. Whether this may be due to harmonic? what should I do to overcome above problem.pl suggest urgently.   4
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