GE T60 Instruction Manual page 291

Transformer protection system ur series
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5 SETTINGS
Table 5–17: T60 FLEXLOGIC OPERANDS (Sheet 5 of 9)
OPERAND TYPE
OPERAND SYNTAX
ELEMENT:
RESTD GND FT1 PKP
Restricted ground
RESTD GND FT1 OP
fault
RESTD GND FT1 DPO
RESTD GND FT2 to 6
ELEMENT:
RRTD COMM FAIL
Remote RTD
RRTD RTD 1 ALARM DPO
protection
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
RRTD RTD 2 to 12
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
SETTING GROUP ACT 4
SETTING GROUP ACT 5
SETTING GROUP ACT 6
ELEMENT:
SRC1 50DD OP
Disturbance
SRC2 50DD OP
detector
SRC3 50DD OP
SRC4 50DD OP
SRC5 50DD OP
SRC6 50DD OP
ELEMENT:
SRC1 VT FF OP
VTFF (Voltage
SRC1 VT FF DPO
transformer fuse
SRC1 VT FF VOL LOSS
failure)
SRC1 VT NEU WIRE OPEN
SRC2 VT FUSE FAIL to SRC6
GE Multilin
OPERAND DESCRIPTION
Restricted ground fault 1 has picked up
Restricted ground fault 1 has operated
Restricted ground fault 1 has dropped out
Same set of operands as shown for RESTD GND FT1
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
The set of operands shown above are available for RRTD RTD 2 and higher
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
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
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)
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.
Same set of operands as shown for SRC1 VT FUSE FAIL
T60 Transformer Protection System
5.5 FLEXLOGIC
5
5-155

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