Table of Contents
Advertisement
9
.
3
.
3
.
2
.
M
e
a
s
u
r
e
m
9
.
3
.
3
.
2
.
M
e
a
s
u
r
e
The same operations as those described in the previous paragraph must be
repeated with the phase L2 (Figure 9.5) and phase L3 (Figure 9.6).
For a balanced load (which is usually the case in most of the three phase
systems), the phase shift should be approximately the same for all the three
phases.
L1
L2
Supply side
L3
Figure 9.5. Connection of the scopemeter for checking CT in phase L2.
L1
L2
Supply side
L3
Figure 9.6. Connection of the scopemeter for checking CT in phase L3.
e
n
t
o
f
C
T
i
n
p
h
a
s
m
e
n
t
o
f
C
T
i
n
p
h
a
s
K
L
K
L
k
l
k
l
Positive direction
K
L
K
L
k
l
k
l
Positive direction
Asea Brown Boveri Jumet S.A.
PQFA Instructions Manual
e
L
2
a
n
d
L
3
e
L
2
a
n
d
L
3
K
L
k
l
L1
L2
L3
X5.6
X5.5
X5.4
PQF
X5.3
X5.2
X5.1
Ch1
Ch2
K
L
k
l
L1
L2
L3
X5.6
X5.5
X5.4
PQF
X5.3
X5.2
X5.1
Ch1
Ch2
Load side
Load side
55
Advertisement
Table of Contents
Troubleshooting
