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Replacing transient suppression network fuses – Rockwell Automation 7000 PowerFlex Medium Voltage AC Drive (B Frame) - ForGe Control (PanelView 550) User Manual

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Rockwell Automation Publication 7000-UM151E-EN-P - January 2013

33

Component Definition and Maintenance Chapter 3

Figure 17 - Simplified wiring diagram

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.

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 18 on

page 34

for location.)

U

V

W

Drive Input Power

from

Line Terminals

Transient Suppression Network

Medium Voltage Input Fuses

Phase MOV

Suppressor

Ground MOV

Suppressor