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CHAPTER 2: INSTALLATION
Electrical installation
A
B
C
52a
Winding 1 Breaker
Aux Contacts
52b
52a
Winding 2 Breaker
Aux Contacts
52b
USB
4 WIRE USB
4 WIRE ETHERNET
345 TRANSFORMER PROTECTION SYSTEM – QUICKSTART GUIDE
Figure 2-10: Typical wiring diagram – Drawout
E5 D5 E6 D6 E7 D7 E8 D8
I
I
I
I
I
I
I
I
A
A
B
B
C
C
G
G
345
Transformer Protection System
C1
52a W1 BKR (CI #1)
C2
52b W1 BKR (CI #2)
C3
52a W2 BKR (CI #3)
C4
52b W2 BKR (CI #4)
C5
INPUT 5
C6
INPUT 6
C7
INPUT 7
C8
INPUT 8
C9
INPUT 9
C10
INPUT 10
C11
COMMON
C12
CHASSIS GND
Front Panel
USB
TYPE B
Rear Panel
COMMUNICATIONS
ETHERNET
RJ45
mTRJ
IRIG-B
10/100 BASE-T100 BASE-FX
OPTIONAL
F2
GROUND
BUS
TWO WINDING
TRANSFORMER
E9 D9 E10 D10 E11 D11 E12 D12
I
I
I
A
A
B
1 TRIP
2 TRIP
3 AUXILIARY
4 AUXILIARY
5 AUXILIARY
6 AUXILIARY
RS485
-
-
+
+
7 CRITICAL
F1
F5 F4 F3
F6
ELECTRICAL INSTALLATION
I
I
I
I
I
B
C
C
G
G
+
B1
-
-
A1
chassis
B2
gnd
GND STUD
+
A2
TRIP
B3
COIL
52a
V
A3
W1 BKR
+
B4
TRIP
A4
COIL
52a
V
B5
W2 BKR
A5
B6
A6
B7
A7
OUTPUT CONTACTS
SHOWN WITH NO
B8
CONTROL POWER
A8
B9
A9
B10
A10
B11
A11
B12
FAILURE
RELAY
A12
897744.CDR
CONTROL
POWER
GROUND
BUS
TRIP CIRCUIT
W1 BKR
TRIP CIRCUIT
W2 BKR
23
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