GE D30 Instruction Manual page 251

CHAPTER 5: SETTINGS
— Selects an operand, usually a contact input connected to a breaker auxiliary position tracking
BREAKER 1 ΦA/3P CLOSED
mechanism. This input is a normally-open 52/a status input to create a logic 1 when the breaker is closed. If the
setting is selected as 3-Pole,
MODE "
closed position. If the mode is selected as
settings select operands to track phases B and C, respectively.
BREAKER 1 ΦC
— Selects an operand, usually a contact input, that is a normally-closed 52/b status input to create
BREAKER 1 ΦA/3P OPND
a logic 1 when the breaker is open. If a separate 52/b contact input is not available, then the inverted
signal can be used.
— If the mode is selected as three-pole, this setting has no function. If the mode is selected as single-
BREAKER 1 ΦB CLOSED
pole, this input is used to track the breaker 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-
BREAKER 1 ΦB OPENED
pole, this input is used to track the breaker 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-
BREAKER 1 ΦC CLOSED
pole, this input is used to track the breaker 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-
BREAKER 1 ΦC OPENED
pole, this input is used to track the breaker phase C opened position as outlined for phase A.
— This setting specifies the required interval to overcome transient disagreement between the 52/a
BREAKER 1 Toperate
and 52/b auxiliary contacts during breaker operation. If transient disagreement still exists after this time has expired, the
FlexLogic operand is asserted from alarm or blocking purposes.
BREAKER 1 BAD STATUS
— This setting selects an operand, usually an external contact input, connected to a breaker alarm
BREAKER 1 EXT ALARM
reporting contact.
— This setting specifies the delay interval during which a disagreement of status among the three-
BREAKER 1 ALARM DELAY
pole position tracking operands does not declare a pole disagreement. This allows for non-simultaneous operation of the
poles.
— This setting specifies the interval required to maintain setting changes in effect after an
MANUAL CLOSE RECAL1 TIME
operator has initiated a manual close command to operate a circuit breaker.
— Selects an operand indicating that breaker 1 is out-of-service.
BREAKER 1 OUT OF SV
D30 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
this setting selects a single input as the operand used to track the breaker open or
"
1-Pole, the input mentioned is used to track phase A and the
" "
SYSTEM SETUP
BREAKER 1
and
BREAKER 1 ΦB
status
BREAKER 1 CLOSED
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