GE Multilin T60 Transformer Protection System 5-127
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 6 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 to 12 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:
Disturbance
detector
SRC1 50DD OP
SRC2 50DD OP
SRC3 50DD OP
SRC4 50DD OP
SRC5 50DD OP
SRC6 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
Source 5 disturbance detector has operated
Source 6 disturbance detector has operated
ELEMENT:
VTFF (Voltage
transformer fuse
failure)
SRC1 VT FUSE FAIL OP
SRC1 VT FUSE FAIL DPO
SRC1 VT FUSE FAIL 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 15% AND V1 below 5%
of nominal)
SRC2 VT FUSE FAIL to SRC6 Same set of operands as shown for SRC1 VT FUSE FAIL
ELEMENT:
Disconnect switch
SWITCH 1 OFF CMD
SWITCH 1 ON CMD
SWITCH 1 ΦA BAD ST
SWITCH 1 ΦA INTERM
SWITCH 1 ΦA CLSD
SWITCH 1 ΦA OPEN
SWITCH 1 ΦB BAD ST
SWITCH 1 ΦC INTERM
SWITCH 1 ΦB CLSD
SWITCH 1 ΦB OPEN
SWITCH 1 ΦC BAD ST
SWITCH 1 ΦA INTERM
SWITCH 1 ΦC CLSD
SWITCH 1 ΦC OPEN
SWITCH 1 BAD STATUS
SWITCH 1 CLOSED
SWITCH 1 OPEN
SWITCH 1 DISCREP
SWITCH 1 TROUBLE
Disconnect switch 1 open command initiated
Disconnect switch 1 close command initiated
Disconnect switch 1 phase A bad status is detected (discrepancy between
the 89/a and 89/b contacts)
Disconnect switch 1 phase A intermediate status is detected (transition from
one position to another)
Disconnect switch 1 phase A is closed
Disconnect switch 1 phase A is open
Disconnect switch 1 phase B bad status is detected (discrepancy between
the 89/a and 89/b contacts)
Disconnect switch 1 phase C intermediate status is detected (transition from
one position to another)
Disconnect switch 1 phase B is closed
Disconnect switch 1 phase B is open
Disconnect switch 1 phase C bad status is detected (discrepancy between
the 89/a and 89/b contacts)
Disconnect switch 1 phase A intermediate status is detected (transition from
one position to another)
Disconnect switch 1 phase C is closed
Disconnect switch 1 phase C is open
Disconnect switch 1 bad status is detected on any pole
Disconnect switch 1 is closed
Disconnect switch 1 is open
Disconnect switch 1 has discrepancy
Disconnect switch 1 trouble alarm
SWITCH 2 Same set of operands as shown for SWITCH 1
Table 5–11: T60 FLEXLOGIC™ OPERANDS (Sheet 5 of 8)
OPERAND TYPE OPERAND SYNTAX OPERAND DESCRIPTION
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