SECTION 2-Front Frame Conversion
2.1-General lnformation
The Front Frame Conversion consists of the following:
1. Relocating the W Relay on quick-close, electrically
operated, Type AK-50/75/1 00 breakers equipped with EC
trip devices.
2. Remounting the X Relay on the same breakers
described above.
3. Installing the Flux Shifter device.
4. Installing the Programmer Mounting bracket.
5. Installing the Programmer Wire harness.
2.2-Breaker Disassembly
WARNING:
BEFORE STARTING ANY WORK, DIS
CONNECT THE BREAKER FROM ALL POWER
SOURCES (PRIMARY AND SECONDARY) AND
PLACE IN A CLEAN WORK AREA.
Verify the breaker is OPEN. Referring to the appropriate
Maintenance Manual, See Table 1-6, separate the breaker's
front and back frames.
2.3-Remounting W and
X
Relays
Type AK-2/2A Breakers (EC trip devices) electrically
operated with quick-close may require the relocation of
their anti-pump, W-Relay to insure proper space for the
MicroVersaTriprM programmer unit. On these breakers,
the W Relay normally mounts on the left side of the center
channel, sharing a common mounting bracket with the
X Relay as shown in Fig. 2-1.
Remove the W-relay and using the new mounting bracket
provided, See Fig. 2-2, relocate the mounting bracket to the
upper-left side of the front frame, as shown in Fig. 2-1.
Remove"the X Relay and its mounting bracket. Using the new
bracket provided, see Fig. 2-2, remount the X Relay in its
existing location, as shown in Fig. 2-1.
Type AKA and AKS Breakers do not require remounting of
their W and X Relays.
FRONT VIEWS OF BREAKER
-
--......
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........._
_
CJCJ
X
'
----
I
I
I
I
BEFORE
AFTER
Fig. 2-1. Relocating W-relay and remounting X-relay
5
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