Schweitzer Engineering Laboratories SEL-352-1 - Setting Description; Breaker Close Signals (CLOSE, MCLOSE)

Date Code 20010731 Breaker Logic 3-39
SEL-352-1, -2 Instruction Manual
Figure 3.23: Current Unbalance, Failure to Close Logic
Setting Description
Breaker Close Signals (CLOSE, MCLOSE)
Use SET G <ENTER> to access the automatic and manual breaker close signals and determine
which signal the relay will use in the current unbalance logic.
Any optoisolated input can be used to control these Relay Word bits. For example, if IN101 is
used to indicate a close condition from another device or control switch, set CLOSE = IN101.
The programmable input settings are actually SEL
OGIC control equations. Use any combination
of Relay Word bits according to the SEL
OGIC control equation criteria in Section 5: Control
Logic.