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HKB SINGLE POLE
will
be
open from the first rPclosure so that
reclosure is
locked
out on these poles.
the poles are open, a breaker b
closed
to
energize
relay
closed contact
79X.
The
STATION 8us
I t 3
t.1Nr
Fiq. 3-Typical Carrier Control and Alarm Circuits for the Type HKB Sinqle Pole Carrier Relayinq Scheme.
4
When
52b, is
switch
SGF
t
r
gh
the
h
o u
oper-
contacts of
sqp
�ON
'li-'Z'Z.
1-t.
·- ..
,_ ..
�-10
,,_.,,..
15-16
1'7-1
the
MGT
to
ate
relay
the second
tripout
results
locking
out
reclosure
poles.
This b
switch which energizes the
relay must be set so that it never closes on a
CAA. IIt lflt 'SIIoi i 'TUI
'
3
"TE'5T\RI'\�'
'
�
115\1, fba .... .
TE'ST SOURO:.
X
X
X
)(
trip all poles.
Thus
in
tripping and
all three breaker
of
SGF
1N�HC'T�M£QUS TRIP
�H.Etl. SOPPI.. I i'tl.
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