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Electric Power Generation
Installation and maintenance
5747 en - 2018.10 / a
Dual plate D700
11
•
XM: AVR measurement. These are isolating blade terminals.
•
XP: AVR power and field excitation
•
X24: 24 VDC power supplies, used redundantly with the 230 VAC power supplies on the plate
•
XS: 230 VAC power supplies
•
XC: Pilot control mode commands (AVR inputs)
•
XO1: AVR 1 outputs
•
XO2: AVR 2 outputs
DO NOT OPEN THESE TERMINAL BLOCKS WHEN THE AVR IS IN "ACTIVE" STATE
Plate
Terminals
Generator
D700
Connection
XM.1
Phase L1
U
Generator voltage measurement – AVR 1
XM.3
Phase L2
V
XM.5
Phase L3
W
XM.2
Phase L1
U
Generator voltage measurement – AVR 2
XM.4
Phase L2
V
XM.6
Phase L3
W
XM.7
Phase L2 – S2
V-S2
Parallel operation CT – AVR 1
XM.8
Phase L2 – S1
V-S1
XM.9
Phase L2 – S2
V-S2
Parallel operation CT – AVR 2
XM.10
Phase L2 – S1
V-S1
XM.11
Phase NW1
L1
Mains voltage measurement – AVR 1
XM.13
Phase NW2
L2
XM.15
Phase NW3
L3
XM.12
Phase NW1
L1
Mains voltage measurement – AVR 2
XM.14
Phase NW2
L2
XM.16
Phase NW3
L3
XP.1
Power
X1
Field power – AVR 1
XP.3
Power
X2
XP.5
Power
Z1
XP.7
Power
Z2
XP.2
Power
X1
Field power – AVR 2
XP.4
Power
X2
XP.6
Power
Z1
XP.8
Power
Z2
XP.9
Exciter
E+
+ excitation
XP.10
Exciter
E-
- excitation
X24.1
+24VDC
-
24 VDC power supply - AVR 1 (plate power supply redundancy)
X24.2
+24VDC
-
24 VDC power supply - AVR 2 (plate power supply redundancy)
X24.3
+24VDC
-
24 VDC power supply - Control circuit (plate power supply redundancy)
X24.4
0VDC
-
24 VDC power supply - AVR 1 (plate power supply redundancy)
X24.5
0VDC
-
24 VDC power supply - AVR 2 (plate power supply redundancy)
X24.6
0VDC
-
24 VDC power supply - Control circuit (plate power supply redundancy)
XS.1
Neutral
-
230 VAC power supply - AVR 1 (plate power supply redundancy)
XS.2
Neutral
-
230 VAC power supply - AVR 2 (plate power supply redundancy)
XS.3
Neutral
-
230 VAC power supply - Control circuit (plate power supply redundancy)
XS.4
Phase
-
230 VAC power supply - AVR 1 (plate power supply redundancy)