Permissible Number Of Vacuum Interrupter Switching Operations In; Relation To Breaking Current - ABB VD4 Series Operating Manual
Vacuum circuit-breaker – high duty
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Also See for VD4 Series:
- Installation and service instructions manual (73 pages) ,
- Product manual (56 pages) ,
- Instruction manual (44 pages)
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Figure 2/1:
Vacuum circuit-breaker, type VD4,
for 12 kV, 275 mm pole centres, mechanism side
2.4
Permissible number of vacuum interrupter switching operations in relation to breaking current
Diagram A)
Figure 2/3:
Permissible number of vacuum interrupter operating cycles n as a function of the breaking current I
(Reference see section 2.1 – Technical data page 6)
8
Figure 2/2:
Vacuum circuit-breaker, type VD4,
for 12 kV, 210 mm pole centres, pole side
Diagram B)
a
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