Interested to Buy Any Domain ? << Click Here >> for more details...
What is Automatic Voltage regulator(AVR)?
- 6 Answers
- 20549 Views
- Cummins, I also Faced
- E-Mail Answers
Answer Posted / bhanu pratap
to understand the function of AVR first v have to understand
concept of reactive power....
all of u know reactive power..
a generator has active power and reactive power... infact
with out reactive power ther will be no generation..
reactive power is the one which is the power consumed for
the establishment of magnetic flux in the machine without
which no generation takes place....
coming to the AVR..
consider a generator supplying to the grid.. as the grid is
not purely resistive.. it generally is inductive since loads
connected to grid(consider industries)are inductive..
generator tries to draw reactive power from the grid for the
development of its magnetic flux...(under constant frequncy)
when frequncy changes ..it disturbs the magnetic flux ...so
the geneartor tries to draw more n more reactive power from
the grid.. if this happens .. rotor of the generator will
get heated due to this reactive power..
so here comes d AVR... avr produces the xtra amount of
voltage required for the machine to maintain its magnetic
fld so that (V/F) will be constant...
thats wat i feel.. inform if any corrections
when
| Is This Answer Correct ? | 9 Yes | 3 No |
Post New Answer View All Answers
What is the minimum IR value of HT/ LT cable? Pls post separetely!!!!!
in ACB breaker requireding 3200Amps. buscoupler getting OFF mode and again it reset and getting normal position give me a required answer?
my UPS suddenly goes off and all panel light also blow off.This happens even main electric supply is not interrupted.After some time it automatically starts functioning normally.Batteries are new.
How does a battary stores charge in it? please explain in simple manner and in detail.thanks
which motor have relatively high power factor and what is reason for have high pf? 1.capacitor run motor 2.shaded pole motor 3.capacitor start motor 4.split phase motor
Please brief me about number of pole in alternator.In single phase alternator coils are connected in star or series. How to calculate frequency for the same.
Dry type transformers
Damping resistor provided in open delta (tartiary) winding of a measuring PT at the incoming of a MV inverter drive panel is getting heated up. Can any body explain the reasons and suggest the remedy?
What is the unit of charge and current?
how single phase preventer works ?
HOW TO SELECT THE COPPER CABLE SIZES OF MOTORS,TRANSFORMERS?
Why in 6 KV XLPE cable termination kit used and why not in 380 V xlpe cable same is not used
we have consol make 3 phase servo stabilizer for cnc m/c. while installing the earth neutral voltage is 1.7 volts at stbilizer off condition and when stabilizer get on en voltage reaches 4.8 volts (new earthing is done and neutral is helthy condition all phase to neutral volts 440,442,441 v)why this happen.solution for cause.
How to check the cable fault / hv test of transformer cable.
I need to connect a synchronous generator to the grid using automatic synchronization and two circuit breakers (one for synchronization, one for end connection to the grid), how to determinate the required diameter of the cables?
