GE C70 Instruction Manual page 247

CHAPTER 5: SETTINGS
— This setting selects an operand that creates a programmable signal to operate a contact output to close
SWITCH 1 CLOSE
disconnect switch 1.
— This setting selects an operand that prevents closing of the disconnect switch. This setting can be
SWITCH 1 BLK CLOSE
used for select-before-operate functionality or to block operation from a panel switch or from SCADA.
— 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 a normally-open 89/a status input to create a logic 1 when the disconnect
switch is closed. If the
SWITCH 1 MODE
to track the disconnect switch open or closed position. If the mode is selected as
track phase A and the
SWITCH 1 ΦB
— This setting selects an operand, usually a contact input, that is a normally-closed 89/b status input
SWTCH 1 ΦA/3P OPND
to create 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.
— This setting specifies the required interval to overcome transient disagreement between the 89/a and
SWITCH 1 Toperate
89/b auxiliary contacts during disconnect switch operation. If transient disagreement still exists after this time has expired,
the FlexLogic operand is asserted from alarm or blocking purposes.
SWITCH 1 BAD STATUS
— This setting specifies the delay interval during which a disagreement of status among the three-
SWITCH 1 ALARM DELAY
pole position tracking operands do not declare a pole disagreement. This allows for non-simultaneous operation of the
poles.
IEC 61850 functionality is permitted when the C70 is in "Programmed" mode and not in local control mode.
NOTE
C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL
setting is selected as 3-Pole,
"
and settings select operands to track phases B and C, respectively.
SWITCH 1 ΦC
this setting selects a single input as the operand used
"
1-Pole, the input mentioned is used to
" "
SYSTEM SETUP
5
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