42 Rockwell Automation Publication 7000-UM202D-EN-P - May 2018
Chapter 2 Power Component Definition and Maintenance
Replacing Transient Suppression Network Fuses
Two sizes of fuses (5 kV, 7.2 kV) are available within the TSN located inside the
connection cabinet. The 18-pulse drive contains three TSNs.
1. Ensure there is no power to the equipment.
2. Fuses are held in a place with a fuse clip. To remove the fuse pull firmly.
3. To replace the fuse, hold it in position and push firmly until the fuse is
seated within the fuse clip. Install fuses so that the rating is visible.
Figure 30 - Transient Suppression Network
ATTENTION: To prevent electrical shock, disconnect the main power before
working on the drive. Verify that all circuits are voltage-free using a hot stick
or appropriate voltage-measuring device. Failure to do so may result in injury
or death.
IMPORTANT Replace the fuse with another of the same rating. See Figure 30 on page 42
for location.
Ground location
Varistors
5 kV fuse example
7.2 kV fuse example
Connecting links
Varistors
5 kV fuse location
7.2 kV fuse location
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