what is AVR and tell principle and working?
Answer Posted / nikhil
AVR is automatic voltage regulator.as the name shows it
regulate the output voltage of regulator. in fact it is a
card that sense the output voltage of a generator and a
signal is giving to an exciter (an exciter is an dc or ac
generator)and thus the excitation is giving to the rotor of
generator.hence it maintains the output voltage of generator
thereby it prevents the overload.
| Is This Answer Correct ? | 11 Yes | 4 No |
Post New Answer View All Answers
what is meant by carrier aided trip protection in transmission line
what can be the causes of capacitor start motor having a higher current that its actual
If the Brush of DC motor is shifted by 90 deg, then what happens to voltage and torque? Both voltage and torque are zero. how to justify the answer?
i am electrical and elctronics engg passed out in 2009 want to attend for reliance placements.plz send me apttitude ,technical and hr question answers to my mail plz. my mail id-kat.bindas@gmail.com
7- What is the Dissipation Factor and the difference between it and Insulation Resistance Test? 8- What is the task (function) of DC and AC reactors in power plant? 9- What is the task (function) of (open delta with earthed) in some types in transformers? 10- What is the base of the selection of the vector group in transformers? 11- What is the zig-zag transformer and its function by drawing in large detail? 12- What is the polarity ? 13- Why we make short between phase(R) in high side and phase (r) in low side in vector group test? Where High Side ( R ,S and T ) and Low Side ( r ,s and t ). 14- What are the time on delay and time off delay? 15- What is the vector group? 15- What is the task (function) of different types of vector group such as Dyn11 , Dd0 , YNd1,……..,?
What is resolver and glass scale in CNC how they work?
What is the difference between solid grounding and impedance grounding?
What is Phase margin?
what is gas turbine intercooling ?
What is rotating magnetic field?Discuss elaborately.
An impedance of 100 ohms resistance and an unknown inductance is connected across the capacitor. The resulting impedance is a pure resistance of 500 ohms ifω = 10^5 rad/sec. calculate the values of inductor and capacitor.
What are conduct on the testing in cf in ur site?
how to build a network which step down 415v to 1v rms
electrical
As a electrical engineer.. what are the basic norms should follow in transformer oil testing.. 1.What is the Electrode type? 2.How long time you will give for oil testing?