ABB AKD-10, Installation And Maintenance Manual

Page: 30 / 77

To remove the exiting breaker follow instructions provide with the legacy breaker and or
switchgear/ switchboard. Notice how the rejection plates on the floor of the switchgear
compartment align with rejection pins on the circuit breaker. Verify the correct breaker is
being used. Compare the rejection pin arrangement on the new breaker to those on the
old breaker.
After the existing breaker is removed and the compartment updated with any added
features, the pre-wired breaker can be installed in GE AKD-10 Switchgear, GE Switchboard
or OEM Equipment.
1. Verify that the new breaker is in the DISCONNECTED and OPEN position.
2. For WPS-32/WPH-32/WPX-32/WPS-40/WPX-40/WPS-50/WPX-50 Retrofill Breaker.
a. It is best to use ABB Lifting Bar Part number 2TSE431931R1000 for 3200-4000A and
2TSE431932R1000 for 5000A and a suitable hoist to lift from above as shown in
Figure 34. (These lifting bars have been tested to 200% of their 700 Ib ratings.)
b. Use of Lifting (Spreader) bar allows to reach the top most switchgear compartment
easily, so it is the recommended method
.
c. Alternate method, use a lifting chain and hooks rated at least 1400 Ibs to lift the
breaker
from above as shown in Figure 33. (chains must not be at an angle less than 45
degrees from the horizontal plane.) Installation in upper compartments may not
be possible with limited overhead space or the GE switchgear hoist.
lt must be ensured that the supply power to the
Shack and Saad compartment is turned off/
compartment is denergized for all the incoming
and outgoingcircuits of the LVS prior to any work
being conducted on it.
During the installation and related work on the
equipment, it must be ensured that the operator
is using the prescribed PPE for the specified
tasks
Ensure only qualified personnel install, operate, service, and maintain all electrical
equipment .
Danger
Install AKD-10 & Substructure type 800, 1600 & 2000 Retrofill Breaker
Install AKD-10 & Substructure type 3200, 4000 & 5000 Retrofill Breaker
lt must be ensured that the supply power to the
Shack and Saad compartment is turned off/
compartment is denergized for all the incoming
and outgoing circuits of the LVS prior to any work
being conducted on it.
During the installation and related work on the
equipment, it must be ensured that the operator
is using the prescribed PPE for the specified
tasks
Ensure only qualified personnel install, operate, service, and maintain all electrical
equipment
.
Danger
Lifting holes
Figure 33
AKD-10 Location of Lifting Holes for Alternate Method
C