4–244 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
PROTECTION CHAPTER 4: SETPOINTS
STAGE 1 DELAY
Range: 0.000 to 6000.000 s in steps of 0.001 s
Default: 0.500 s
The setting specifies a time delay for stage 1. For reverse power or low forward power
applications for a synchronous machine, stage 1 is typically applied for alarming and
stage 2 for tripping.
STAGE 2 SMIN
Range: -1.200 to 1.200 x Rated Power in steps of 0.001 x Rated Power
Default: 0.100 x Rated Power
The setting specifies the minimum power as defined along the relay characteristic angle
(RCA) for stage 2 of the element. The setting needs to be coordinated with the setting of
stage 1.
STAGE 2 DELAY
Range: 0.000 to 6000.000 s in steps of 0.001 s
Default: 20.000 s
The setting specifies a time delay for stage 2. For reverse power or low forward power
applications for a synchronous machine, stage 1 is typically applied for alarming and
stage 2 for tripping.
BLOCK
Range: Off, Any operand from the list of FlexLogic operands
Default: Off
RELAYS
Range: Do Not Operate, Operate
Default: Do Not Operate
EVENTS
Range: Enabled, Disabled
Default: Enabled
TARGETS
Range: Self-reset, Latched, Disabled
Default: Self-reset
To Next Page
Loading...
