GE Multilin T60 Transformer Protection System 5-163
5 SETTINGS 5.5 FLEXLOGIC
5
ELEMENT:
Restricted ground
fault
RESTD GND FT1 PKP
RESTD GND FT1 OP
RESTD GND FT1 DPO
Restricted ground fault 1 has picked up.
Restricted ground fault 1 has operated.
Restricted ground fault 1 has dropped out.
RESTD GND FT2 to FT4 Same set of operands as shown for RESTD GND FT1
ELEMENT:
Remote RTD
protection
RRTD COMM FAIL
RRTD RTD 1 ALARM DPO
RRTD RTD 1 ALARM OP
RRTD RTD 1 ALARM PKP
RRTD RTD 1 OPEN
RRTD RTD 1 SHORTED
RRTD RTD 1 TRIP DPO
RRTD RTD 1 TRIP OP
RRTD RTD 1 TRIP PKP
Asserted when RRTD loss of communications is detected.
Asserted when the RRTD RTD 1 alarm stage drops out.
Asserted when the RRTD RTD 1 alarm stage operates.
Asserted when the RRTD RTD 1 alarm stage picks up.
Asserted when the RRTD RTD 1 detects an open circuit.
Asserted when the RRTD RTD 1 detects an short/low circuit.
Asserted when the RRTD RTD 1 trip stage drops out.
Asserted when the RRTD RTD 1 trip stage operates.
Asserted when the RRTD RTD 1 trip stage picks up.
RRTD RTD 2... The set of operands shown above are available for RRTD RTD 2 and higher
ELEMENT:
Selector switch
SELECTOR 1 POS Y
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 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
SELECTOR 2 Same set of operands as shown above for SELECTOR 1
ELEMENT:
Setting group
SETTING GROUP ACT 1
SETTING GROUP ACT 2
SETTING GROUP ACT 3
SETTING GROUP ACT 4
SETTING GROUP ACT 5
SETTING GROUP ACT 6
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
ELEMENT:
Sub-harmonic stator
ground fault detector
SH STAT GND STG1 PKP
SH STAT GND STG1 DPO
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
Stage 1 of the sub-harmonic stator ground protection has picked up
Stage 1 of the sub-harmonic stator ground protection has dropped out
Stage 1 of the sub-harmonic stator ground protection has operated
Stage 2 of the sub-harmonic stator ground protection has picked up
Stage 2 of the sub-harmonic stator ground protection has dropped out
Stage 2 of the sub-harmonic stator ground protection has operated
Ground over current element of the sub-harmonic stator ground protection
has picked up
Ground over current element of the sub-harmonic stator ground protection
has dropped out
Ground over current element of the sub-harmonic stator ground protection
has operated
Sub-harmonic stator ground module trouble has picked up
Sub-harmonic stator ground module trouble has dropped out
Sub-harmonic stator ground module trouble has operated
ELEMENT:
Disturbance
detector
SRC1 50DD OP
SRC2 50DD OP
SRC3 50DD OP
SRC4 50DD OP
Source 1 disturbance detector has operated
Source 2 disturbance detector has operated
Source 3 disturbance detector has operated
Source 4 disturbance detector has operated
ELEMENT:
VTFF (Voltage
transformer fuse
failure)
SRC1 VT FF OP
SRC1 VT FF DPO
SRC1 VT FF VOL LOSS
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 10% and V1 below 5%
of nominal)
SRC1 VT NEU WIRE OPEN Source 1 VT neutral wire open detected.When the VT is connected in Delta,
this function should not be enabled because there is no neutral wire for Delta
connected VT.
SRC2 VT FF to
SRC4 VT FF
Same set of operands as shown for SRC1 VT FF
Table 5–19: T60 FLEXLOGIC OPERANDS (Sheet 5 of 9)
OPERAND TYPE OPERAND SYNTAX OPERAND DESCRIPTION
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