GE D30 Instruction Manual page 224

Line distance protection system
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5.5 FLEXLOGIC™
Table 5–7: D30 FLEXLOGIC™ OPERANDS (Sheet 5 of 8)
OPERAND TYPE
OPERAND SYNTAX
ELEMENT:
POWER SWING OUTER
Power swing detect
POWER SWING MIDDLE
POWER SWING INNER
POWER SWING BLOCK
POWER SWING TMR1 PKP
POWER SWING TMR2 PKP
POWER SWING TMR3 PKP
POWER SWING TMR4 PKP
POWER SWING TRIP
POWER SWING 50DD
POWER SWING INCOMING
POWER SWING OUTGOING
POWER SWING UN/BLOCK
ELEMENT:
SELECTOR 1 POS Y
Selector switch
SELECTOR 1 BIT 0
SELECTOR 1 BIT 1
SELECTOR 1 BIT 2
SELECTOR 1 STP ALARM
SELECTOR 1 BIT ALARM
SELECTOR 1 ALARM
SELECTOR 1 PWR ALARM
SELECTOR 2
ELEMENT:
SETTING GROUP ACT 1
Setting group
SETTING GROUP ACT 2
SETTING GROUP ACT 3
5
SETTING GROUP ACT 4
SETTING GROUP ACT 5
SETTING GROUP ACT 6
ELEMENT:
SH STAT GND STG1 PKP
Sub-harmonic stator
SH STAT GND STG1 DPO
ground fault detector
SH STAT GND STG1 OP
SH STAT GND STG2 PKP
SH STAT GND STG2 DPO
SH STAT GND STG2 OP
SH STAT GND OC PKP
SH STAT GND OC DPO
SH STAT GND OC OP
SH STAT GND TRB PKP
SH STAT GND TRB DPO
SH STAT GND TRB OP
ELEMENT:
SRC1 50DD OP
Disturbance
SRC2 50DD OP
detector
ELEMENT:
SRC1 VT FUSE FAIL OP
VTFF (Voltage
SRC1 VT FUSE FAIL DPO
transformer fuse
SRC1 VT FUSE FAIL VOL LOSS
failure)
SRC1 VT NEU WIRE OPEN
SRC2 VT FUSE FAIL to
SRC VT FUSE FAIL
5-92
OPERAND DESCRIPTION
Positive-sequence impedance in outer characteristic
Positive-sequence impedance in middle characteristic
Positive-sequence impedance in inner characteristic
Power swing blocking element operated
Power swing timer 1 picked up
Power swing timer 2 picked up
Power swing timer 3 picked up
Power swing timer 4 picked up
Out-of-step tripping operated
The power swing element detected a disturbance other than power swing
An 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 has
been established
Selector switch 1 is in Position Y (mutually exclusive operands)
First bit of the 3-bit word encoding position of selector 1
Second bit of the 3-bit word encoding position of selector 1
Third bit of the 3-bit word encoding position of selector 1
Position of selector 1 has been pre-selected with the stepping up control
input but not acknowledged
Position of selector 1 has been pre-selected with the 3-bit control input but
not acknowledged
Position of selector 1 has been pre-selected but not acknowledged
Position of selector switch 1 is undetermined or restored from memory when
the relay powers up and synchronizes to the three-bit input
Same set of operands as shown above for SELECTOR 1
Setting group 1 is active
Setting group 2 is active
Setting group 3 is active
Setting group 4 is active
Setting group 5 is active
Setting group 6 is active
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Source 1 disturbance detector has operated
Source 2 disturbance detector has operated
Source 1 VT fuse failure detector has operated
Source 1 VT fuse failure detector has dropped out
Source 1 has lost voltage signals (V2 below 15% AND V1 below 5%
of nominal)
Source 1 VT neutral wire open detected.
Same set of operands as shown for SRC1 VT FUSE FAIL
D30 Line Distance Protection System
5 SETTINGS
GE Multilin

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