Woodward UMT 1, Руководство пользователя, Страница: 12 / 62

Manual 37139C UMT 1 - Measuring Transducer
Page 12/62 © Woodward
Currrent
WARNING
Before disconnecting the secondary terminals of the transformer or the connection of the transformer
at the control unit ensure that the transformer is short-circuited.
NOTE
Current transformers are secondary and should be connected to ground single-sided.
100/400 V version
Measurement
current
../1 A or ../5 A
s1 (k)
s2 (l)
L1
s1 (k)
s2 (l)
L2
s1 (k)
s2 (l)
L3
G
6
7
9
10
12
13
Detail: Connection
of the transducers
S2 S1
s2 (l)
s1 (k)
s2
L..
..
..
s1
G
L..
L2
L1
L3
N
Connection according to the description
of the w-system
Figure 3-6: Measuring inputs - current 100/400 V versions
Terminal Measurement Description A
max
6
Transformer
../1 A or
../5 A
Measuring current L1, transformer terminal s2 (l)
2.5 mm²
7
Measuring current L1, transformer terminal s1 (k)
2.5 mm²
9
Measuring current L2, transformer terminal s2 (l)
2.5 mm²
10
Measuring current L2, transformer terminal s1 (k)
2.5 mm²
12
Measuring current L3, transformer terminal s2 (l)
2.5 mm²
13
Measuring current L3, transformer terminal s1 (k)
2.5 mm²
690 V version
Measurement
current
../1 A or ../5 A
s1 (k)
s2 (l)
L1
s1 (k)
s2 (l)
L2
s1 (k)
s2 (l)
L3
G
45
46
47
48
49
50
Detail: Connection
of the transducers
S2 S1
s2 (l)
s1 (k)
s2
L..
..
..
s1
G
L..
L2
L1
L3
N
Connection according to the description
of the w-system
Figure 3-7: Measuring inputs - current, 690 V version
Terminal Measurement Description A
max
40
Transformer
../1 A or
../5 A
Measuring current L1, transformer terminal s2 (l)
2.5 mm²
41 Measuring current L1, transformer terminal s1 (k) 2.5 mm²
42
Measuring current L2, transformer terminal s2 (l)
2.5 mm²
43
Measuring current L2, transformer terminal s1 (k)
2.5 mm²
44
Measuring current L3, transformer terminal s2 (l)
2.5 mm²
45
Measuring current L3, transformer terminal s1 (k)
2.5 mm²