Westinghouse Type F-122 Oil Circuit-Breakers
FIG. 21-VIEW
OF
STARTING
SIDE
WITH
BOTH
HANDLES OPEN
FIG. 22-VIEW
OF
STARTING
SIDE WITH
START-
FIG.
23-VIEW
OF
STARTING
SIDE juST AS START-
ING
SIDE CLOSED
lNG
HANDLE
IS
REACHING
ITS
OPEN POSITION
FIG.
2
4
-
VI
E
W
OF RU>!>!I>!G SIDE
WITH BOTH
HANDLES OPEN
FIG.
25-VIEw oF RuNNING SIDE wiTH Ru>�
NING SIDE CLOSED
the unlocking surface of the interlocking
casting and withdraw it from in front of
the running handle pin and allowing the
running handle pin to raise, as would
occur if the running side of the circuit-
breaker had started to close. Thus it is
easy to see that it is impossible to
close the running side of the circuit
breaker until the starting side has been
fully closed and has reached its full open
16
position. At the opening of the circuit
breaker the interlock castings return to
their original positions. The operation
of the device can readily be seen by refer
ence to the illustrations. Figs.
21
to
25.
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