SECTION 7 -Breaker Maintenance {Cont.)
7.5
P R IMARY DISCONNECTS
Primary disconnects are found only on drawout break
ers. They provide the f lexible connection between the
breaker line and load terminals and the equipment line
and load terminals.
FIG. 22 - P R I MARY DISCONN ECT
ASSEMBLY
FIG. 24 - PARTIAL P R I MARY DISCONNECT
ASM
The 800 ampere b reake rs w it h the exception of
30L use four primary d isconnect fingers per term inal.
The 1 600 amp, 2000 amp and
eight fingers per term inal. Fig. 22 shows a line and
load end d i sconnec t assembly. The line end d iscon
nects on fusible breakers have the spring pointing
downwards , otherwise t he are identical.
FIG. 23 - PARTIAL P R IMARY DISCONNECT
ASM
FIG. 25 - PARTIAL P R I MARY DISCONNECT
ASM
AKR
30L b reakers use
AKR
21