Interested to Buy Any Domain ? << Click Here >> for more details...
What is the working of AVR in AC generators?
- 13 Answers
- 96335 Views
- Navrachana University, I also Faced
- E-Mail Answers
Answer Posted / geeparthi
AVR's are normally used in the Diesel Generators.They are
used to control the output voltage depending upon load
connected , such that, the load will not cause any voltage
fluctuation and damage to the DG.
Automatic Voltage Regulator.It is
important part in Synchronous Generators, it controls the
output voltage of the generator by controlling its
excitation current. Thus it can control the output Reactive
Power of the Generator.
AVR increase or decrease excitation voltage for linear
voltage.Frequency depends on primover speed.
It is a device used to maintain a constant voltage at the
alternators terminals. It functions by maintaining the
excitation required to maintain the terminal voltage of the
alternator with change in the load.
Increase in excitation voltage increases reactive voltampere
(var) which decreases powerfactor (cos(phi)).
generally, voltage(V) of the alternator is kept constant so
thE rest of the components in VIcos(phi), ie. I and cos(phi)
have to vary according to the load.
Increase in I causes decrease in Pf and Decrease in I causes
increase in Pf.
so it is clear that Excitation V is proportional to var and
load current (I) and inversely proportional to power
factor(cos(phi)).
AS the name itself indicates it is a device which maintains
| Is This Answer Correct ? | 135 Yes | 4 No |
Post New Answer View All Answers
how can i change the rotation of the AC single phase induction motor and show me by diagram
Why there are some equipment(i.e:TV) that using 2-pin plug instead of three? What happen if there is current leakage? Are we going to get electric shock??
If Polarization index of motor 8.75 at 500volts of medium voltage 4.16 KV motor what this mean winding good or bad pl answer if any reffrence book give me the link
How is the percentage impedence of a transformer fixed at design stage???
what is the purpose of using filters in a protective relaying scheme?
1.what is difference between ATS & STS main use. 2.what is difference between ACB& VCB With symobles,and main partes, manimum range. 3.How many types of relays and main function.
how can i get the formula to find out the cable size if i know the load of main fuse protection.
Terminal blocks is used for segregate the connections... There is any principle for terminal block..?
how to compute kAIC? with formulas...
Can the output voltage of a rectifier be greater than the input AC voltage without the use of any voltage multiplier in the circuit??please provide the explanation too..
How u can give the overload setting to any motor protection relay for a HT motors with formula and Example?
Why colled 440V to 3-phase supply.
I want to make street light with solar system ... What may I do for procedure and how much of estimation for each material ... If any one knows guide me and inform this id : aravindd7@gmail.com
How to calculate approximate load loss of a distribution transformer by knowing %ge imp of transformer?
from where the self excitrd induction generator get the power?why is the voltage regulation is poor of seig?
