GE C70 Instruction Manual page 350

SYSTEM SETUP
To use this element, configure the contact outputs that trip and close the breaker to use FlexLogic operands
(or
CMD BREAKER 1 TRIP A/B/C
element inputs as described here.
A description of the operation of the breaker control and status monitoring features from the front panel is provided in
chapter 4.
There are two breaker control elements for each CT/VT module installed. The following settings are available for each
breaker control element.
BREAKER 1 FUNCTION
BREAKER1 PUSH BUTTON CONTROL
BREAKER1 TAGGING
operations are disabled: pushbutton open/close, IEC 61850 open/close, and close command initiated by
setting. The trip command issued by the Trip Out element or
BREAKER1 SUBSTITUTN
breaker 1 control open/close status is forced to the substituted value.
— Set to "Enable" to allow the graphical front panel to bypass breaker 1 interlocking. When asserted,
BREAKER1 BYPASS
BREAKER 1 BLK OPEN
— Assign a user-defined name (up to six characters) to the breaker. This name is used in flash messages
BREAKER 1 NAME
related to breaker 1.
— Selects "3-Pole" mode, where all breaker poles are operated simultaneously, or "1-Pole" mode where all
BREAKER 1 MODE
breaker poles are operated either independently or simultaneously.
— Selects an operand that when activated, and unless blocked, initiates the Breaker 1 open and individual
BREAKER 1 OPEN
phase trip commands.
5
BREAKER 1 BLK OPEN
This setting can be used for blocking circuit breaker tripping for instance when breaker monitoring detects conditions such
as low SF gas density during which breaker opening can cause damage.
6
— Selects an operand that when activated, and unless blocked, initiates the Breaker 1 close commands.
BREAKER 1 CLOSE
BREAKER 1 BLK CLOSE
for blocking circuit breaker closing, for instance to prevent closing into a closed ground switch.
BREAKER1 ΦA/3P CLSD
mechanism. This input is for a normally-open 52/a status input that creates a logic 1 when the breaker is closed. If the
setting is selected as "3-Pole," this setting selects a single 52/a input as the operand used to track the
BREAKER 1 MODE
breaker open or closed position. If the mode is selected as "1-Pole," the input mentioned is used to track phase A and the
and
BREAKER 1 ΦB
BREAKER1 ΦA/3P OPND
creates a logic 1 when the breaker is open. If a separate 52/b contact input is not available, then the inverted 52/a status
signal or the inverted
BREAKER 1 ΦB CLOSED
pole, this input is used to track the breaker phase B closed position as outlined for phase A.
BREAKER 1 ΦB OPENED
pole, this input is used to track the breaker phase B opened position as outlined for phase A.
BREAKER 1 ΦC CLOSED
pole, this input is used to track the breaker phase C closed position as outlined for phase A.
BREAKER 1 ΦC OPENED
pole, this input is used to track the breaker phase C opened position as outlined for phase A.
BREAKER 1 TOPERATE
and 52/b auxiliary contacts during breaker operation. If transient disagreement still exists after this time has expired, the
BREAKER 1 BAD STATUS
BREAKER 1 EXT ALARM
reporting contact. While the selected operand is active, the
5-146
in the case of single-pole tripping) and
— This setting enables and disables the operation of the breaker 1 control feature.
— Set to "Enable" to allow front panel pushbutton open/close control operations.
— Set to "Enable" to allow the graphical front panel to tag breaker 1. When tagged, the following
— Set to "Enable" to allow the graphical front panel to substitute breaker 1 status. When substituted,
and settings are bypassed.
BREAKER 1 BLK CLOSE
— Selects an operand that prevents initiation of Breaker 1 open and individual phase trip commands.
— Selects an operand that prevents initiation of Breaker 1 close commands. This setting can be used
— Selects an operand, usually a contact input connected to a breaker auxiliary position tracking
settings select operands to track phases B and C, respectively.
BREAKER 1 ΦC
— Selects an operand, usually a contact input, that is for a normally-closed 52/b status input that
status signal can be used.
BREAKER 1 CLOSED
— If the mode is selected as three-pole, this setting has no function. If the mode is selected as single-
— If the mode is selected as three-pole, this setting has no function. If the mode is selected as single-
— If the mode is selected as three-pole, this setting has no function. If the mode is selected as single-
— If the mode is selected as three-pole, this setting has no function. If the mode is selected as single-
— This setting specifies the required interval to overcome transient disagreement between the 52/a
FlexLogic operand is asserted for alarm or blocking purposes.
— This setting selects an operand, usually an external contact input connected to a breaker alarm
BREAKER 1 ON
setting is not affected.
BREAKER 1 OPEN
BREAKER 1 TROUBLE
C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL
CHAPTER 5: SETTINGS
CMD, and configure the breaker control
BREAKER 1 CLOSE
operand is activated.
BREAKER 1 OFF