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2018.01 / g
Electric Power Generation
13
Installation and maintenance
R449 revision f
AVRs
3983 en -
2.2 - Potentiometers
P1: Potentiometer for adjusting the alternator voltage to the mains voltage (operating mode 3F)
P2: Adjustment of the power factor
P3: Stability
P4: Limitation of the power factor
10
9
8
7
6
5
4
3
2
1
400
0
S1
S2
}
}
T3
T2
T1
1 2 3 4 5 6 7 8 9 10
LED
P3
P4
P1
ST1
ST2
MAINS VOLTAGE
(PHASES 2-3)
GENERATOR VOLTAGE
(PHASES 2-3)
RED
GREEN
"U = U"
"Cos
ϕ
"
}
}
J1
P5
C1 C2
P6
U
VOLTAGE
U = U
"Cos
ϕ
" "Cos
ϕ
"
J2
TI / CT / 1A (PHASE 1)
LIMIT
To A.V.R.
P1
P2
P3
P4
P5
: (-R) =
P6 :
(+R) =
MORE GEN VOLTAGE
MORE REACTIVE POWER
STABILITY (// with mains)
P.F. LAG Limit
MORE VOLTAGE (single)
MORE REACTIVE POWER
U = U
100 mm
11
5 mm
SENSING 50/60 Hz
POTENTIOMETERS
+
+
ADJUSTMENTS / MONITORING
CONTROL OUTPUT
P2
Cos
ϕ
STAB
R2 R1
Unused terminal
400
100
100
0
}
R726