Answer Posted / satyanarayana raju
AVR MEANS AUTOMATIC VOLTAGE REGULATOR.AVR IS HAVING TWO
INPUT TERMINALS AND TWO OUT PUT TERMINALS OUT PUT IS GIVING
DC VOLTAGE .IT IS CLOSED LOOP CONTROL SYSTEM. I WILL
GIVE ONE EXAMPLE . AVR HAVING TERMINALS LIKE S1,S2, AND
F1,F2. S1 AND S2 ARE INPUT TERMINALS THAT IS CONNECTED TO
OUT PUT OF THE ALTERNATOR VOLTAGE. F1 AN F2 IS CONNEDCTED
TO FIELD OF THE EXITER TERMINALS. I WILL EXPLAIN HOW IT IS
WORKS. EXITER IS COUPLED WITH ALTERNATOR ROTOR. EXITER
FIELD IS HAVING OWN RESIDUAL MAGNITISUM DUE THIS MAGNETISUM
ALTERNATOR GETS SMALL VOLTAGE THAT IS AROUND 10-20VOLTS AT
OUT PUT VOLTAGE. U WANT SEE THIS VOLTAGE REMOVE F1 AND F2
CONNETIONS CHECK VOLTAGE AT OUT PUT TERMINALS. THESE OUT
VOLTAGE IS SENDING TO AVR INPUT TERMINALS THAT IS S1 & S2
THEN AVR GIVES SAME VOLTAGE TO EXITER FIELD THEN EXITER
FIELD GIVES MORE MAGNETISUM DUE TO THIS ALTERNATOR GIVES
MORE VOLTAGE AGAIN THIS VOLTAGE GIVEN TO AVR LIKE THIS
THESE CYCLES GOIES ON UP REACH REQUIRED VOLTAGE OF THE
ALTERNATOR. AT REACHING OUT PUT REQUIRED VOLTAGE AVR IS
NOT SENDING MORE VOLTAGE TO EXITER THERE IS CUTT OF SET
POINT . WHOLE THESE CYCLE TAKEN VERY LESS TIME MEANS MAY
BE 1 SEC. AVR OUTPUT VOLTAGE IS DEPENDS UPON THE COMPANY OF
THE AVR AND REQUIREMTNT OF THE ALTERNATOR. HELLOW FRIENDS
IF U HAVING LITTLE BIT KNOWLEDGE IN ALTERNATOR SIDE U
CHANCES A UNDER STAND THIS INFORMATION IS VERY EASILY. IF U
WANT MORE INFORMATION AGAIN CALL BACK . THNAKING U
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