GE Multilin
T60 Transformer Protection System
5-125
5 SETTINGS
5.4 SYSTEM SETUP
5
•
SWITCH 1 MODE:
This setting selects “3-Pole” mode, where disconnect switch poles have a single common auxiliary
switch, or “1-Pole” mode where each disconnect switch pole has its own auxiliary switch.
•
SWITCH 1 OPEN:
This setting selects an operand that when activated, and unless blocked, initiates the disconnect
switch 1 open command.
•
SWITCH 1 BLK OPEN
: This setting selects an operand that prevents initiation of the disconnect switch 1 command.
This setting can be used for blocking disconnect switch opening for instance when switchyard monitoring indicates cur-
rent exceeding the switch's interrupting rating can be flowing through the switch.
•
SWITCH 1 CLOSE:
This setting selects an operand that when activated, and unless blocked, initiates the disconnect
switch 1 close command.
•
SWITCH 1 BLK CLOSE
: This setting selects an operand that prevents initiation of disconnect switch 1 close com-
mands. This setting can be used for blocking disconnect switch closing, for instance to prevent closing into a closed
ground switch.
•
SWTCH 1
Φ
A/3P CLSD:
This setting selects an operand, usually a contact input connected to a disconnect switch
auxiliary position tracking mechanism. This input is for a normally-open 89/a status input that creates a logic 1 when
the disconnect switch is closed. If the
SWITCH 1 MODE
setting is selected as “3-Pole”, this setting selects a single 89/a
input as the operand used to track the disconnect switch open or closed position. If the mode is selected as “1-Pole”,
the input mentioned above is used to track phase A and the
SWITCH 1
Φ
B
and
SWITCH 1
Φ
C
settings select operands to
track phases B and C, respectively.
•
SWTCH 1
Φ
A/3P OPND:
This setting selects an operand, usually a contact input, that is for a normally-closed 89/b
status input that creates a logic 1 when the disconnect switch is open. If a separate 89/b contact input is not available,
then an inverted 89/a status signal can be used.
•
SWITCH 1
Φ
B CLOSED:
If the mode is selected as three-pole, this setting has no function. If the mode is selected as
single-pole, this input is used to track the disconnect switch phase B closed position as above for phase A.
•
SWITCH 1
Φ
B OPENED:
If the mode is selected as three-pole, this setting has no function. If the mode is selected as
single-pole, this input is used to track the disconnect switch phase B opened position as above for phase A.
•
SWITCH 1
Φ
C CLOSED:
If the mode is selected as three-pole, this setting has no function. If the mode is selected as
single-pole, this input is used to track the disconnect switch phase C closed position as above for phase A.
•
SWITCH 1
Φ
C OPENED:
If the mode is selected as three-pole, this setting has no function. If the mode is selected as
single-pole, this input is used to track the disconnect switch phase C opened position as above for phase A.
•
SWITCH 1 TOPERATE
: This setting specifies the required interval to overcome transient disagreement between the
89/a and 89/b auxiliary contacts during disconnect switch operation. If transient disagreement still exists after this time
has expired, the
SWITCH 1 BAD STATUS
FlexLogic operand is asserted for alarm or blocking purposes.
•
SWITCH 1 ALARM DELAY:
This setting specifies the delay interval during which a disagreement of status among the
pole position tracking operands will not declare a pole disagreement. This allows for non-simultaneous operation of the
poles.
IEC 61850 functionality is permitted when the T60 is in “Programmed” mode and not in the local control mode.
NOTE
Summary of Contents for T60
Page 6: ...vi T60 Transformer Protection System GE Multilin TABLE OF CONTENTS ...
Page 14: ...xiv T60 Transformer Protection System GE Multilin TABLE OF CONTENTS ...
Page 34: ...1 20 T60 Transformer Protection System GE Multilin 1 5 USING THE RELAY 1 GETTING STARTED 1 ...
Page 490: ...5 344 T60 Transformer Protection System GE Multilin 5 10 TESTING 5 SETTINGS 5 ...
Page 522: ...6 32 T60 Transformer Protection System GE Multilin 6 5 PRODUCT INFORMATION 6 ACTUAL VALUES 6 ...
Page 536: ...7 14 T60 Transformer Protection System GE Multilin 7 1 COMMANDS 7 COMMANDS AND TARGETS 7 ...
Page 568: ...10 12 T60 Transformer Protection System GE Multilin 10 6 DISPOSAL 10 MAINTENANCE 10 ...
Page 596: ...A 28 T60 Transformer Protection System GE Multilin A 1 PARAMETER LISTS APPENDIX A A ...
Page 716: ...B 120 T60 Transformer Protection System GE Multilin B 4 MEMORY MAPPING APPENDIX B B ...
Page 762: ...E 10 T60 Transformer Protection System GE Multilin E 1 IEC 60870 5 104 PROTOCOL APPENDIX E E ...
Page 774: ...F 12 T60 Transformer Protection System GE Multilin F 2 DNP POINT LISTS APPENDIX F F ...