DSE Model 5220 Automatic Mains Failure & Instrumentation System Operators Manual
5220 OPERATING MANUAL ISSUE 5.1 18-Jun-07 AM
45
15.1.3 2 PHASE, 3 WIRE ( 2 PHASE CENTRE TAP NEUTRAL)
The alternator is 2 phase star connected. The live phases are separated by 180
°
L1
L2
N
F2A
F2A
39
40
41
42
43
CT
common
CT
Earth
35
36
37
38
N
ot
c
on
nec
ted
F2A
F2A
31
32
33
34
G
M
LOAD
Mechanical interlock
Electrical interlock
Generator
Mains (utility)
28
27
30
29
Generator
loading
relay
Mains
loading
relay
L1
L2
N
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