GE D60 Instruction Manual page 369

CHAPTER 5: SETTINGS
— This setting selects an operand that when activated, and unless blocked, initiates the disconnect switch 1
SWITCH 1 OPEN
open command.
— This setting selects an operand that prevents initiation of the disconnect switch 1 command. This
SWITCH 1 BLK OPEN
setting can be used to block the disconnect switch from opening, for instance when switchyard monitoring indicates that
current exceeding the switch's interrupting rating can be flowing through the switch.
— This setting selects an operand that when activated, and unless blocked, initiates the disconnect switch
SWITCH 1 CLOSE
1 close command.
— This setting selects an operand that prevents initiation of disconnect switch 1 close commands. This
SWITCH 1 BLK CLOSE
setting can be used to block the disconnect switch from closing, for instance to prevent closing into a closed ground
switch.
— This setting selects an operand, usually a contact input connected to a disconnect switch auxiliary
SWTCH 1 ΦA/3P CLSD
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
the operand used to track the disconnect switch open or closed position. If the mode is selected as "1-Pole," the input
mentioned is used to track phase A and the
C, respectively.
— This setting selects an operand, usually a contact input, that is for a normally-closed 89/b status
SWTCH 1 ΦA/3P OPND
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.
— If the mode is selected as three-pole, this setting has no function. If the mode is selected as single-
SWITCH 1 ΦB CLOSED
pole, this input is used to track the disconnect switch phase B closed position as outlined for phase A.
— If the mode is selected as three-pole, this setting has no function. If the mode is selected as single-
SWITCH 1 ΦB OPENED
pole, this input is used to track the disconnect switch phase B opened position as outlined for phase A.
— If the mode is selected as three-pole, this setting has no function. If the mode is selected as single-
SWITCH 1 ΦC CLOSED
pole, this input is used to track the disconnect switch phase C closed position as outlined for phase A.
— If the mode is selected as three-pole, this setting has no function. If the mode is selected as single-
SWITCH 1 ΦC OPENED
pole, this input is used to track the disconnect switch phase C opened position as outlined for phase A.
SWITCH 1 PUSH BUTTON CONTROL
— Set to "Enable" to allow the graphical front panel to tag switch 1. When tagged, the following
SWITCH 1 TAGGING
operations are disabled:
• Pushbutton Open/Close
• IEC 61850 Open/Close
• Open command initiated by
• Close command initiated by
— Set to "Enable" to allow the graphical front panel to substitute switch 1 status. When substituted,
SWITCH 1 SUBSTITUTN
switch 1 control open/close status is forced to the substituted value.
—Set to "Enable" to allow the graphical front panel to bypass switch 1 interlocking. When asserted,
SWITCH 1 BYPASS
and
SWITCH 1 BLK OPEN SWITCH 1 BLK CLOSE
— This setting specifies the seal-in time of the open command due to an operator-initiated manual
SWITCH 1 OPEN SEAL-IN
open command to the disconnect switch.
— This setting specifies the seal-in time of the close command due to an operator-initiated manual
SWITCH 1 CLOSE SEAL-IN
close command to the disconnect switch.
— This setting specifies the required interval to overcome transient disagreement between the 89/a
SWITCH 1 TOPERATE
and 89/b auxiliary contacts during disconnect switch operation. If transient disagreement still exists after this time has
expired, the
SWITCH 1 BAD STATUS
— This setting specifies the delay interval during which a disagreement of status among the pole
SWITCH 1 ALARM DELAY
position tracking operands do not declare a pole disagreement. This allows for non-simultaneous operation of the poles.
D60 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
setting is selected as "3-Pole," this setting selects a single 89/a input as
SWITCH 1 MODE
and
SWITCH 1 ΦB SWITCH 1 ΦC
— Set to "Enable" to allow front panel pushbutton open/close control operations.
setting
SWITCH 1 OPEN
setting
SWITCH 1 CLOSE
settings are bypassed.
FlexLogic operand is asserted for alarm or blocking purposes.
settings select operands to track phases B and
SYSTEM SETUP
5
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