GE C60 Instruction Manual page 358

SYSTEM SETUP
The breaker control element contains the auxiliary logic for status and serves as the interface for opening and closing of a
circuit breaker from protection, autoreclose, SCADA, or through the front panel interface. The breaker control element can
be used to create interlocking functionality. For greater security in determination of the breaker position, both the 52/a and
52/b auxiliary contacts are used with reporting of the discrepancy between them.
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.
Breaker control element 1 and Breaker control element 2 are permanently attached to Autoreclose element
functions BKR1 and BKR2 respectively.
There are two breaker control elements for each CT/VT module installed. The following settings are available for each
breaker control element.
5
BREAKER 1 FUNCTION
BREAKER1 PUSH BUTTON CONTROL
BREAKER1 TAGGING
operations are disabled: pushbutton open/close, IEC 61850 open/close, autoreclose command issued by the autoreclose
element, and close command initiated by
setting is not affected.
BREAKER 1 OPEN
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
BREAKER1 AR BLOCK
BREAKER 1 BLK RCLS
The autoreclose element operates for BKR1 and BKR2 only.
Once is asserted from the front panel, the breaker reclosing is not allowed. Note that the autoreclose element is
AR BLOCK
not automatically inhibited by
or
AR BLOCK BKR1 AR BLOCK
— 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.
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
5-150
BREAKER 1 OUT OF SV:

Off
BREAKER 1 RACKED-IN:

Off
BREAKER 1 EVENTS:

Disabled
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
BREAKER 1 CLOSE
— Set to "Enable" to allow the graphical front panel to substitute breaker 1 status. When substituted,
and settings are bypassed.
BREAKER 1 BLK CLOSE
— Set to "Enable" to allow the graphical front panel to issue a BLOCK AR command and generate the
operand, which blocks the breaker 1 close command from the Autoreclose element.
from the front panel. If the autoreclose scheme needs to be inhibited, set setting
BLOCK AR
in the autoreclose element with the
— Selects an operand that prevents initiation of Breaker 1 open and individual phase trip commands.
Range: FlexLogic operand
Range: FlexLogic operand
Range: Disabled, Enabled
CMD, and configure the breaker control
BREAKER 1 ON
setting. The trip command issued by the Trip Out element or
operand.
BREAKER 1 BLK RCLS
C60 BREAKER PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 5: SETTINGS
BREAKER 1 OFF