GE UR Series Instruction Manual page 234

5.6 CONTROL ELEMENTS 5 SETTINGS
The output operand from the scheme (POTT OP) must be configured to interface with other relay functions, output contacts
in particular, in order to make the scheme fully operational. Typically, the output operand should be programmed to initiate
a trip, breaker fail, and autoreclose, and drive a user-programmable LED as per user application.
5
Figure 5–78: POTT SCHEME LOGIC
5-150 L90 Line Differential Relay GE Power Management