5-146 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL
SYSTEM SETUP CHAPTER 5: SETTINGS
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To use this element, configure the contact outputs that trip and close the breaker to use FlexLogic operands BREAKER 1 OFF
CMD (or BREAKER 1 TRIP A/B/C in the case of single-pole tripping) and BREAKER 1 ON CMD, and configure the breaker control
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 — This setting enables and disables the operation of the breaker 1 control feature.
BREAKER1 PUSH BUTTON CONTROL — Set to “Enable” to allow front panel pushbutton open/close control operations.
BREAKER1 TAGGING — Set to "Enable" to allow the graphical front panel to tag breaker 1. When tagged, the following
operations are disabled: pushbutton open/close, IEC 61850 open/close, and close command initiated by
BREAKER 1 CLOSE
setting. The trip command issued by the Trip Out element or
BREAKER 1 OPEN setting is not affected.
BREAKER1 SUBSTITUTN — Set to "Enable" to allow the graphical front panel to substitute breaker 1 status. When substituted,
breaker 1 control open/close status is forced to the substituted value.
BREAKER1 BYPASS — Set to "Enable" to allow the graphical front panel to bypass breaker 1 interlocking. When asserted,
BREAKER 1 BLK OPEN and BREAKER 1 BLK CLOSE settings are bypassed.
BREAKER 1 NAME — Assign a user-defined name (up to six characters) to the breaker. This name is used in flash messages
related to breaker 1.
BREAKER 1 MODE — Selects “3-Pole” mode, where all breaker poles are operated simultaneously, or “1-Pole” mode where all
breaker poles are operated either independently or simultaneously.
BREAKER 1 OPEN — Selects an operand that when activated, and unless blocked, initiates the Breaker 1 open and individual
phase trip commands.
BREAKER 1 BLK OPEN — Selects an operand that prevents initiation of Breaker 1 open and individual phase trip commands.
This setting can be used for blocking circuit breaker tripping for instance when breaker monitoring detects conditions such
as low SF
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gas density during which breaker opening can cause damage.
BREAKER 1 CLOSE — Selects an operand that when activated, and unless blocked, initiates the Breaker 1 close commands.
BREAKER 1 BLK CLOSE — Selects an operand that prevents initiation of Breaker 1 close commands. This setting can be used
for blocking circuit breaker closing, for instance to prevent closing into a closed ground switch.
BREAKER1 ΦA/3P CLSD — Selects an operand, usually a contact input connected to a breaker auxiliary position tracking
mechanism. This input is for a normally-open 52/a status input that creates a logic 1 when the breaker is closed. If the
BREAKER 1 MODE setting is selected as "3-Pole," this setting selects a single 52/a input as the operand used to track the
breaker open or closed position. If the mode is selected as "1-Pole," the input mentioned is used to track phase A and the
BREAKER 1 ΦB and BREAKER 1 ΦC settings select operands to track phases B and C, respectively.
BREAKER1 ΦA/3P OPND — Selects an operand, usually a contact input, that is for a normally-closed 52/b status input that
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 CLOSED status signal can be used.
BREAKER 1 ΦB 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 breaker phase B closed position as outlined for phase A.
BREAKER 1 ΦB 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 breaker phase B opened position as outlined for phase A.
BREAKER 1 ΦC 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 breaker phase C closed position as outlined for phase A.
BREAKER 1 ΦC 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 breaker phase C opened position as outlined for phase A.
BREAKER 1 TOPERATE — This setting specifies the required interval to overcome transient disagreement between the 52/a
and 52/b auxiliary contacts during breaker operation. If transient disagreement still exists after this time has expired, the
BREAKER 1 BAD STATUS FlexLogic operand is asserted for alarm or blocking purposes.
BREAKER 1 EXT ALARM — This setting selects an operand, usually an external contact input connected to a breaker alarm
reporting contact. While the selected operand is active, the BREAKER 1 TROUBLE operand is activated.
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