Siemens GMSG Instruction Manual page 44

Maintenance
Table 3: Typical vacuum interrupter contact life and stroke
Rated Interrupting
maximum class
voltage
kV MVA
4.76 250
4.76 350
8.25 500
15.0 500
15.0 750
15.0 1,000
Rated Interrupting
maximum class
voltage
kV kA
4.76 31.5
4.76 40
4.76 50
4.76 63
8.25 40
15.0 20
15.0 25
15.0 31.5
15.0 40
15.0 50
15.0 63
Footnotes:
The vacuum interrupter type designation
1.
is labeled on the vacuum interrupter. If the
vacuum interrupter installed does not match
that indicated in this table, contact the nearest
Siemens representative.
2. If you need assistance achieving the indicated
stroke setting, contact the nearest Siemens
representative.
44
Rated short- Vacuum
circuit current interrupter
kA Type
29 kA@4.76 kV; VS-17006
36 kA@3.85 kV VS-17040
41 kA@4.76 kV; VS-15052
49 kA@4.0 kV
33 kA@8.25 kV; VS-15052
41 kA@6.6 kV
18 kA@15.0 kV; VS-17006
23 kA@11.5 kV
28 kA@15.0 kV; VS-15052
36 kA@11.5 kV VS-17040
37 kA@15.0 kV; VS-15052
48 kA@11.5 kV
Rated short- Vacuum
circuit current interrupter
kA Type
31.5 kA@4.76 kV VS-17006
VS-17040
40 kA@4.76 kV VS-15052
VS-17040
50 kA@4.76 kV VS-15052
63 kA@4.76 kV VS-17085
40 kA@8.25 kV VS-15052
VS-17040
20 kA@15.0 kV VS-17006
25 kA@15.0 kV VS-17006
31.5 kA@15.0 kV VS-17006
VS-17040
40 kA@15.0 kV VS-15052
VS-17040
50 kA@15.0 kV VS-15052
63 kA@15.0 kV VS-17085
Continuous Stroke
current
A mm
1,200, 2,000 7-9
1,200, 2,000 7-9
1,200, 2,000, 3,000 8.5-9.5
1,200, 2,000, 3,000 8.5-9.5
1,200, 2,000 7-9
1,200, 2,000, 3,000 8.5-9.5
1,200, 2,000 7-9
1,200, 2,000, 3,000 8.5-9.5
Continuous Stroke
current
A mm
1,200, 2,000 7-9
1,200, 2,000 7-9
1,200, 2,000, 3,000 8.5-9.5
1,200, 2,000 7-9
1,200, 2,000, 3,000 8.5-9.5
1,200, 2,000, 3,000 10-11
1,200, 2,000, 3,000 8.5-9.5
1,200, 2,000 7-9
1,200, 2,000 7-9
1,200, 2,000 7-9
1,200, 2,000 7-9
1,200, 2,000 7-9
1,200, 2,000, 3,000 8.5-9.5
1,200, 2,000 7-9
1,200, 2,000, 3,000 8.5-9.5
1,200, 2,000, 3,000 10-11
2 Graph Right hand
limit of
curve
(refer to
Figure 37)
A 36
B 36
C 49
C 41
A 23
C 36
B 36
C 48
Graph Right hand
2
limit of
curve
(refer to
Figure 37)
A 31.5
B 31.5
C 40
B 40
C 50
D 63
C 40
B 40
A 20
A 25
A 31.5
B 31.5
C 40
B 40
C 50
D 63