GE L90

5-380 L90 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
CONTROL ELEMENTS CHAPTER 5: SETTINGS
5
Figure 5-217: PUTT scheme logic
5.8.12.4 Permissive overreaching transfer trip (POTT)
SETTINGS  CONTROL ELEMENTS  PILOT SCHEMES  POTT SCHEME
 POTT SCHEME


POTT SCHEME
FUNCTION: Disabled
Range: Disabled, Enabled

POTT PERMISSIVE
ECHO: Disabled
Range: Disabled, Enabled

POTT RX PICKUP
DELAY: 0.000 s
Range: 0.000 to 65.535 s in steps of 0.001

TRANS BLOCK PICKUP
DELAY: 0.020 s
Range: 0.000 to 65.535 s in steps of 0.001

TRANS BLOCK RESET
DELAY: 0.090 s
Range: 0.000 to 65.535 s in steps of 0.001

ECHO DURATION:
0.100 s
Range: 0.000 to 65.535 s in steps of 0.001

ECHO LOCKOUT:
0.250 s
Range: 0.000 to 65.535 s in steps of 0.001

LINE END OPEN PICKUP
DELAY: 0.050 s
Range: 0.000 to 65.535 s in steps of 0.001

POTT SEAL-IN
DELAY: 0.400 s
Range: 0.000 to 65.535 s in steps of 0.001