701 Motor Protection Relay
Date Code 20010719
SEL
OGIC®
Control Equations & Relay Logic
SEL
OGIC
Control Equations
B.12
SEL
OGIC
Control Equation Limitations
Each single SEL
OGIC
control equation setting is limited to 25 Relay Word bits
that you can combine together with the SEL
OGIC
control equation operators listed in
. If you need to exceed this limit, use a nondedicated SEL
OGIC
control equation variable (SEL
OGIC
control equation settings SV1 through SV4) to
combine terms and shorten the final equation.
The sum of SEL
OGIC
control equation settings is limited to approximately 80
Relay Word bits that can be combined together using the operators listed in
SEL
OGIC
control equation settings that are set directly to 1 (logical 1) or 0 (logical 0)
must be included in this sum of 80 Relay Word bits with each such setting counted as
one Relay Word bit.
As the relay saves its settings, it calculates the percentage of SEL
OGIC
control
equation capability used. The relay reports this percentage as LEUSE = xx.x when the
settings are saved and when you execute the
SHOW
command. The LEUSE value
provides a measure of the relay SEL
OGIC
control equation capability. The remainder
(100% – LEUSE) is available for future expansion.
Summary of Contents for SEL-701
Page 12: ...This page intentionally left blank ...
Page 18: ...This page intentionally left blank ...
Page 20: ...This page intentionally left blank ...
Page 36: ...This page intentionally left blank ...
Page 64: ...This page intentionally left blank ...
Page 144: ...This page intentionally left blank ...
Page 198: ...This page intentionally left blank ...
Page 232: ...This page intentionally left blank ...
Page 246: ...This page intentionally left blank ...
Page 346: ...This page intentionally left blank ...
Page 390: ...This page intentionally left blank ...
Page 408: ...This page intentionally left blank ...
Page 410: ......
Page 412: ......
Page 414: ......
Page 416: ......
Page 418: ......
Page 420: ......
Page 422: ......
Page 424: ......
Page 426: ......
Page 428: ......
Page 430: ......
Page 432: ......
Page 434: ......
Page 436: ......
Page 438: ......
Page 440: ......
Page 442: ......
Page 452: ...This page intentionally left blank ...