What is AVR? Explain the function AVR?
Answers were Sorted based on User's Feedback
Answer / amit upadhyay dscl
AVR is a automatic voltage regulator who maintained the
terminal voltage of altornator
Is This Answer Correct ? | 94 Yes | 20 No |
Answer / v.chandra shaker
AVR is an automatic voltage regulator,which not only
maintains the terminal voltage of an alternator but also to
maintain good voltage profile & power factor for which it
is connected. The AVR is linked with the main stator
windings and the
exciter field windings to provide closed loop control of the
output voltage with loaIn addition to being powered from
the main stator, the AVR
also derives a sample voltage from the output windings for
voltage control purposes. In response to this sample
voltage, the AVR controls the power fed to the exciter
field,
and hence the main field, to maintain the machine output
voltage within the specified limits, compensating for load,
speed, temperature and power factor of the generator.d
regulation of +/- 1.0%.
Is This Answer Correct ? | 73 Yes | 19 No |
Answer / ramakishore karri
The automatic voltage regulator designed for to maintain the
constant voltage level.Depends upon the design it can be
used either in DC or AC voltages.what ever the load drawn
from the source the AVR keeps the voltage maintain the
predefined value
Is This Answer Correct ? | 14 Yes | 7 No |
Answer / rama kishore karri
AVR is an automatic voltage regulator. The function of AVR is to keep the terminal voltage constant as load variation on power lines. Moreover, the output voltage variation is more likely to be severe because changes in the load power factor. For example an alternator AVR changes the alternator field current to compensate for either increase or decrease load voltage. A controller is used to increase or decrease the field current through field circuit. As the AC voltage falls field controller circuit causes to increase the flux and thus induces increased voltage and vice verse
Is This Answer Correct ? | 7 Yes | 5 No |
Answer / vikas gupta
Avr-automatic voltage regulator, it uses in ac alternators to regualte the voltage...its input is in ac and output is dc, it maintain the voltage as load variation on alternator, if load increases it gives the more dc voltage to exciter stator, so that more voltage could generate.
Vikas gupta( engineer)
Cummins india ltd.
Is This Answer Correct ? | 3 Yes | 4 No |
Answer / idiots
Automatic Voltage Regulator which can adjust the voltage and necessary huge components for the industries.
Is This Answer Correct ? | 1 Yes | 5 No |
Answer / varun sharma
Avr is a advance virtual risc(reduced instructions set computer)
Is This Answer Correct ? | 3 Yes | 12 No |
The speed of a dc motor can be controlled by the variation of 1. armature voltage. 2. field current. 3. armature circuit resistance. 4. angle of brush shift. Which of the statements given above are correct? (a) 1,2 and 3 (b) 2,3 and 4 (c) 1,3 and 4 (d) 1,2 and 4
how to meas-our losses for L.T & H.T
DISCUSS THE SHAFT MOUNTED D.C. GENERATOR ,BASED ON EXCITATION SYSTEM IN ELECTRICAL SYSTRM
check list for anuval maintatince check list of oil transforms
How can be decreased the size of transformer?
What percentage netural current is in netural depend upon the phase current
choose the non-switch device (A) transformer (B) diode (C) transistor (D) IC
Explain the method to keep noises low in a control system?
what happend if we remove dc exciter from moving machine..: gg
types of transformers?
how to calculate the minimum permissible limts of insulation resistance of switchyard equipments
How to test the vector group of a Yd11 transformer? what are the relations to be checked between various vectors to confirm this vector group?