GE D60 Instruction Manual

Also see for D60: Communications manual Communications guide Instruction manual Instruction manual Instruction manual

Contents

5-72 D60 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 D60. 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 ΦA/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 ΦB and BREAKER 1 ΦC settings select operands to track phases B and C,respectively.• BREAKER 1 ΦA/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 ΦB 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 ΦB 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 ΦC 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 ΦC 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.If single-pole tripping and reclosing is used, the breaker may trip unsymmetrically for faults. In this case, the minimumalarm delay setting must exceed the maximum time required for fault clearing and reclosing by a suitable margin.• 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.