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Rockwell Automation Publication 1500-UM055I-EN-P - December 2021
Chapter 4 Maintenance
Figure 48 - Inspecting Isolation Switch in Open Position
6. Check the line and load sides of the contactor with a hot stick or
appropriate voltage measuring device for the system voltage, to verify
that they are voltage free (see
).
a. Check for line-side voltage at the top vacuum bottle terminals.
b. Check for load-side voltage at the bottom vacuum bottle terminals.
See Detail A
Grounding Bar
Isolation Switch Blades
must fully engage
Grounding Pins of
Grounding bar
(Verify for each phase)
Isolation Switch Shutters
must be closed
(Verify for each phase)
Detail A
Grounding Pins
Isolation Switch
Blades in open
position
Viewed from back with
components removed for
clarification
Содержание 1512B
Страница 6: ...6 Rockwell Automation Publication 1500 UM055I EN P December 2021 Notes...
Страница 74: ...74 Rockwell Automation Publication 1500 UM055I EN P December 2021 Chapter 4 Maintenance Notes...
Страница 76: ...76 Rockwell Automation Publication 1500 UM055I EN P December 2021 Chapter 5 Spare Parts Notes...
Страница 106: ...106 Rockwell Automation Publication 1500 UM055I EN P December 2021 Appendix E History of Changes Notes...