Rel 301/302 System - ABB REL301 Instruction Manual

Numerical distance relay
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I.L. 40-386.3
LEGEND
43 – CONTROL SWITCH, AUTOMATIC, MANUAL (CLOSED IN AUTOMATIC)
52 – CIRCUIT BREAKER
aa – AUX. SW. (EARLY CLOSE WHEN BREAKER CLOSES)
a – AUX. SW (CLOSED WHEN BREAKER IS CLOSED)
bb – AUX. SW. (EARLY CLOSE WHEN BREAKER OPENS)
b – AUX. SW. (CLOSED WHEN BREAKER IS OPEN)
CC – CLOSE COIL
TC TRIP COIL
X – CLOSE AUX.
Y – ANTI-PUMP
86BF – BREAKER FAILURE LOCKOUT
101 – BREAKER CONTROL SWITCH
C – CLOSED CONTACE
T – TRIP CONTACT
4-14
Figure 4-2. REL 301/302 Systems External Connection
Jumper between BFI/RI ENA
and Sys Test required to
enable BFI and RI functions
*Sub 2
1613C80
Sheet 1 of 2
(10/94)

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Rel302

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