Answer Posted / kj
An AVR (automatic voltage regulator) works by supplying a
variable voltage to the field of an alternator to control
the output voltage.
The AVR senses the output voltage and compares it to a
setpoint which is usually set by a pot on the board.
It uses either the output voltage from the alterantor or
another source (e.g. PMG permenant magnet generator) to
supply the voltage to the field. The voltage to the field
is DC so the supply to the AVR is rectified before it is
used for the filed.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
plz send me the placement interview question and answers of whizchip(technical and apttitude)..i have an interview in next.
how to calculate the fault in substation
HOW TO CALCULATE HV CABLE SIZING?
WHY EXCITER PHASE SEQUENCE ARE OPPOSITE THAN STATOR SUPPLY PHASE SEQUENCE IN SYNCHRONOUS MOTOR >
where can the transformer having vector group Yny0 be used??
can you plz send l&t aptitude questions if available its urgent plz plz plz
Explain the working of any one cutting machine
What is a slack bus?
Application Comparison between 22KV (UE)and 33KV (E) system. Are we allowed to use 33KV (E) cable in lieu of 22KV (UE) cable. What are the technical disadvantages.
what is the calculation method to design core and winding of a 200kva 3phase distribution transformer?
I COMPLITED MY B.TECH AND 10TH CLASS WITH 70%MARKS BUT 12TH CLASS 55%MARKS..CAN I GET INDIAN RAILWAY RECUREMENT EXAMINATION?
which is the most advanced form of SF6 BREAKER?Can we use other gases to quench the arc?
what is the reactance,capacitance & impedence electrical armoured & unarmored Cables.
why chock were used in old tubelights but are not newest tubelights?
What is the different types of cable & current capacity of cable