GE D30 series Instruction Manual

Also see for D30 series: Communications manual Communications guide Instruction manual Instruction manual Instruction manual

Contents

5-84 D30 Line Distance Protection System GE Multilin5.4 SYSTEM SETUP 5 SETTINGS5A description of the operation of the breaker control and status monitoring features is provided in chapter 4. Only informa-tion concerning programming of the associated settings is covered here. These features are provided for two or morebreakers; a user may use only those portions of the design relevant to a single breaker, which must be breaker 1.The number of breaker control elements is dependent on the number of CT/VT modules specified with the D30. The follow-ing settings are available for each breaker control element.• BREAKER 1 FUNCTION: This setting enables and disables the operation of the breaker control feature.• BREAKER1 PUSH BUTTON CONTROL: Set to “Enable” to allow faceplate push button operations.• BREAKER 1 NAME: Assign a user-defined name (up to six characters) to the breaker. This name will be used in flashmessages related to breaker 1.• BREAKER 1 MODE: This setting 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: This setting selects an operand that creates a programmable signal to operate an output relay toopen breaker 1.• BREAKER 1 BLK OPEN: This setting selects an operand that prevents opening of the breaker. This setting can beused for select-before-operate functionality or to block operation from a panel switch or from SCADA.• BREAKER 1 CLOSE: This setting selects an operand that creates a programmable signal to operate an output relayto close breaker 1.• BREAKER 1 BLK CLOSE: This setting selects an operand that prevents closing of the breaker. This setting can beused for select-before-operate functionality or to block operation from a panel switch or from SCADA.• BREAKER 1 A/3P CLOSED: This setting selects an operand, usually a contact input connected to a breaker auxil-iary position tracking mechanism. This input should be a normally-open 52/a status input to create a logic 1 when thebreaker is closed. If the BREAKER 1 MODE setting is selected as “3-Pole”, this setting selects a single input as the oper-and used to track the breaker open or closed position. If the mode is selected as “1-Pole”, the input mentioned aboveis used to track phase A and the BREAKER 1 B and BREAKER 1 C settings select operands to track phases B and C,respectively.• BREAKER 1 A/3P OPND: This setting selects an operand, usually a contact input, that should be a normally-closed52/b status input to create a logic 1 when the breaker is open. If a separate 52/b contact input is not available, then theinverted BREAKER 1 CLOSED status signal can be used.• BREAKER 1 B CLOSED: If the mode is selected as three-pole, this setting has no function. If the mode is selectedas single-pole, this input is used to track the breaker phase B closed position as above for phase A.• BREAKER 1 B OPENED: If the mode is selected as three-pole, this setting has no function. If the mode is selectedas single-pole, this input is used to track the breaker phase B opened position as above for phase A.• BREAKER 1 C CLOSED: If the mode is selected as three-pole, this setting has no function. If the mode is selectedas single-pole, this input is used to track the breaker phase C closed position as above for phase A.• BREAKER 1 C OPENED: If the mode is selected as three-pole, this setting has no function. If the mode is selectedas single-pole, this input is used to track the breaker phase C opened position as above for phase A.• BREAKER 1 Toperate: This setting specifies the required interval to overcome transient disagreement between the52/a and 52/b auxiliary contacts during breaker operation. If transient disagreement still exists after this time hasexpired, the BREAKER 1 BAD STATUS FlexLogic operand is asserted from alarm or blocking purposes.• BREAKER 1 EXT ALARM: This setting selects an operand, usually an external contact input, connected to a breakeralarm reporting contact.• BREAKER 1 ALARM DELAY: This setting specifies the delay interval during which a disagreement of status amongthe three-pole position tracking operands will not declare a pole disagreement. This allows for non-simultaneous oper-ation of the poles.• MANUAL CLOSE RECAL1 TIME: This setting specifies the interval required to maintain setting changes in effect afteran operator has initiated a manual close command to operate a circuit breaker.• BREAKER 1 OUT OF SV: Selects an operand indicating that breaker 1 is out-of-service.