GE L90 Instruction Manual

Also see for L90: Communications manual Communications guide Instruction manual Instruction manual Instruction manual

Contents

5-128 L90 Line Current Differential System GE Multilin5.5 FLEXLOGIC 5 SETTINGS5ELEMENT:POTT(Permissiveoverreach transfertrip)POTT OPPOTT TX1POTT TX2POTT TX3POTT TX4POTT TRIP APOTT TRIP BPOTT TRIP CPOTT TRIP 3PPermissive over-reaching transfer trip has operatedPermissive over-reaching transfer trip asserts transit bit number 1Permissive over-reaching transfer trip asserts transit bit number 2Permissive over-reaching transfer trip asserts transit bit number 3Permissive over-reaching transfer trip asserts transit bit number 4Permissive over-reaching transfer trip has operated to trip phase APermissive over-reaching transfer trip has operated to trip phase BPermissive over-reaching transfer trip has operated to trip phase CPermissive over-reaching transfer trip has operated to trip all three phasesELEMENT:POTT1(Permissiveoverreach transfertrip ground)POTT1 OPPOTT1 TX1POTT1 TX2POTT1 TX3POTT1 TX4POTT1 TRIP APOTT1 TRIP BPOTT1 TRIP CPOTT1 TRIP 3PPermissive over-reaching transfer trip ground has operatedPermissive over-reaching transfer trip ground asserts transit bit number 1Permissive over-reaching transfer trip ground asserts transit bit number 2Permissive over-reaching transfer trip ground asserts transit bit number 3Permissive over-reaching transfer trip ground asserts transit bit number 4Permissive over-reaching transfer trip ground has operated to trip phase APermissive over-reaching transfer trip ground has operated to trip phase BPermissive over-reaching transfer trip ground has operated to trip phase CPermissive over-reaching transfer trip ground has operated to trip all threephasesELEMENT:Power swing detectPOWER SWING OUTERPOWER SWING MIDDLEPOWER SWING INNERPOWER SWING BLOCKPOWER SWING TMR1 PKPPOWER SWING TMR2 PKPPOWER SWING TMR3 PKPPOWER SWING TMR4 PKPPOWER SWING TRIPPOWER SWING 50DDPOWER SWING INCOMINGPOWER SWING OUTGOINGPOWER SWING UN/BLOCKPositive-sequence impedance in outer characteristicPositive-sequence impedance in middle characteristicPositive-sequence impedance in inner characteristicPower swing blocking element operatedPower swing timer 1 picked upPower swing timer 2 picked upPower swing timer 3 picked upPower swing timer 4 picked upOut-of-step tripping operatedThe power swing element detected a disturbance other than power swingAn unstable power swing has been detected (incoming locus)An unstable power swing has been detected (outgoing locus)Asserted when a fault occurs after the power swing blocking condition hasbeen establishedELEMENT:Selector switchSELECTOR 1 POS YSELECTOR 1 BIT 0SELECTOR 1 BIT 1SELECTOR 1 BIT 2SELECTOR 1 STP ALARMSELECTOR 1 BIT ALARMSELECTOR 1 ALARMSELECTOR 1 PWR ALARMSelector switch 1 is in Position Y (mutually exclusive operands)First bit of the 3-bit word encoding position of selector 1Second bit of the 3-bit word encoding position of selector 1Third bit of the 3-bit word encoding position of selector 1Position of selector 1 has been pre-selected with the stepping up controlinput but not acknowledgedPosition of selector 1 has been pre-selected with the 3-bit control input butnot acknowledgedPosition of selector 1 has been pre-selected but not acknowledgedPosition of selector switch 1 is undetermined or restored from memory whenthe relay powers up and synchronizes to the three-bit inputSELECTOR 2 Same set of operands as shown above for SELECTOR 1ELEMENT:Setting groupSETTING GROUP ACT 1SETTING GROUP ACT 2SETTING GROUP ACT 3SETTING GROUP ACT 4SETTING GROUP ACT 5SETTING GROUP ACT 6Setting group 1 is activeSetting group 2 is activeSetting group 3 is activeSetting group 4 is activeSetting group 5 is activeSetting group 6 is activeELEMENT:Sub-harmonic statorground fault detectorSH STAT GND STG1 PKPSH STAT GND STG1 DPOSH STAT GND STG1 OPSH STAT GND STG2 PKPSH STAT GND STG2 DPOSH STAT GND STG2 OPSH STAT GND OC PKPSH STAT GND OC DPOSH STAT GND OC OPSH STAT GND TRB PKPSH STAT GND TRB DPOSH STAT GND TRB OPStage 1 of the sub-harmonic stator ground protection has picked upStage 1 of the sub-harmonic stator ground protection has dropped outStage 1 of the sub-harmonic stator ground protection has operatedStage 2 of the sub-harmonic stator ground protection has picked upStage 2 of the sub-harmonic stator ground protection has dropped outStage 2 of the sub-harmonic stator ground protection has operatedGround over current element of the sub-harmonic stator ground protectionhas picked upGround over current element of the sub-harmonic stator ground protectionhas dropped outGround over current element of the sub-harmonic stator ground protectionhas operatedSub-harmonic stator ground module trouble has picked upSub-harmonic stator ground module trouble has dropped outSub-harmonic stator ground module trouble has operatedELEMENT:DisturbancedetectorSRC1 50DD OPSRC2 50DD OPSRC3 50DD OPSRC4 50DD OPSource 1 disturbance detector has operatedSource 2 disturbance detector has operatedSource 3 disturbance detector has operatedSource 4 disturbance detector has operatedTable 5–10: L90 FLEXLOGIC OPERANDS (Sheet 7 of 10)OPERAND TYPE OPERAND SYNTAX OPERAND DESCRIPTION