This section contains circuit breaker parameters. The first line in the must say: [BREAKER DATA]. This is followed by the data described below. A blank line ends the section.
1. Bus Name: Name of the bus to which the breaker is attached, in quotation marks.
2. Base kV: Nominal kV (line-to-line) of the bus to which the breaker is attached.
3. Breaker Name: Name with a maximum of 12 characters. Any alphanumeric characters can be used, except for the string delimiter (single or double quotation mark). The breaker name is enclosed in quotation marks.
4. In-Service Flag: This value will always be 1. Circuit breakers cannot be taken out of service.
5a. IEEE rated breaker Interrupting Time in cycles: The default value is 3.
5b. IEC rated breaker %dc Component: Rated percent dc component of the breaker.
6. Rating Method: Rating method of the breaker. Enter 0 for 'IEEE-Symmetrical Current'; 1 for 'IEEE-Total current'; 2 for ‘IEC’. Default is 1.
7. Contact Parting Time 1: Contact parting time of the breaker for protected equipment in group 1, in cycles. The default value is 4.
8. Contact Parting Time 2: Contact parting time of the breaker for protected equipment in group 2, in cycles. The default value is 4.
9a. IEEE Rated Short Circuit Current or MVA: Rated short circuit current in amps if the rating method is 'Symmetrical current'. Rated short circuit MVA if rating method is 'Total current'. The default value is 0.0.
9b. IEC Rated Breaking Current: Rated short circuit breaking current in amps. The default value is 0.0.
10a. IEEE Rated Momentary Current: Rated momentary current of the breaker in amps. This is only used when the breaker rating method is 'Total current'. The default value is 0.0.
10b.IEC Rated ac making current: Rated ac making current of the breaker in amps.
11. Group 1 number of Operations: Total number of breaker open operations in faults on group 1 equipment. Possible choices are 0, 2, 3 and 4. The default value is 0. This is only used when the breaker is IEEE rated.
12. Group 1 first Reclosing Interval in seconds: The reclosing interval is the elapse time between successive breaker opening and reclosing. You must enter (n-1) positive values, where n is the total number of operations to lockout (item 11). The default value is 0.0. This is only used when the breaker is IEEE rated.
13. Group 1 second Reclosing Interval in seconds: This is only used when the breaker is IEEE rated.
14. Group 1 third Reclosing Interval in seconds: This is only used when the breaker is IEEE rated.
15. Group 2 number of Operations: Total number of breaker open operations in faults on group 1 equipment. Possible choices are 0, 2, 3 and 4. The default value is 0. This is only used when the breaker is IEEE rated.
16. Group 2 first Reclosing Interval in seconds: The reclosing interval is the elapse time between successive breaker opening and reclosing. You must enter (n-1) positive values, where n is the total number of operations to lockout (item 15). The default value is 0.0. This is only used when the breaker is IEEE rated.
17. Group 2 second Reclosing Interval in seconds: This is only used when the breaker is IEEE rated.
18. Group 2 third Reclosing Interval in seconds: This is only used when the breaker is IEEE rated.
19. Breaker Operating kV: The default value is nominal kV (line-to-line) of the bus.
20. Max Design kV: The default value is nominal kV (line-to-line) of the bus.
21. kV Range Factor: The default value is 1.0. This is only used when the breaker is IEEE rated.
22. Breaker Derating Flag: 0 if the breaker is to be derated because of reclosing operation: 1 if it is not. The default value is 0. This is only used when the breaker is IEEE rated.
23. Breaker rating check method for group 1: Specifies the current that the breaker must interrupt: 0 for total current of devices in the group; 1 for maximum individual device current in the group.
24. Breaker rating check method for group 2: Specifies the current that the breaker must interrupt: 0 for total current of devices in the group; 1 for maximum individual device current in the group.
25. Non-AC Decrement Factor (NACD)
This factor must be between 0 and 1.0.
26. Memo: Comments with a maximum of 512 characters. Any alpha-numeric characters can be used, except for the string delimiter (single or double quotation mark). The comment text is enclosed in quotation marks.
27. Tags: Tag string with a maximum of 512 characters. Tags in string are separated by semicolon. Any alpha-numeric characters can be used, except for the string delimiter (single or double quotation mark). The tag string is enclosed in quotation marks.
28. Number of Protected equipment in Group 1: This must be an integer greater than, or equal to, zero.
29. Number of Protected equipment in Group 2: This must be an integer greater than, or equal to, zero.
30. Protected Equipment and Additional Branch Outage Identifiers
For each protected equipment in Group 1 and Group 2, the following data are expected, on separates lines. List those in Group 1 first, then those in Group 2.
If the protected equipment is a Bus or a Generator enter: (1) the device code B for Bus; G for generator.
If the protected equipment is a Generator unit, Shunt unit or Load unit, enter: (1) The device type code: U for Generator unit; S for shunt unit; D for load unit, followed by (2) the unit ID enclosed in quotation marks.
If the protected equipment is a Line, Phase Shifter or Transformer, enter: (1) The device type code: L for Line; T for 2-winding transformer; X for 3-winding transformer; P for phase shifter, W for switch. Uppercase letter code indicates protected equipment. Lower case code indicates additional branch outage (2) Bus1 name enclosed in quotation marks, (3) Bus1 base kV, (4) Bus2 name enclosed in quotation marks, (5) Bus2 base kV, and (6) the circuit ID enclosed in quotation marks.
31. UDF: User-defined data fields. Enter the list of user defined field values as a tab delimited text string enclosed in single quotes.
An example breaker data section is shown below.
[1LPF
BREAKER DATA]
'NEVADA' 132= '1E82A' 1 5 1 4 4 3000 20000 3 8 30 0 3 8 30 0
130 139 1.2 0 0 0 1 /
'' /
'' /
1 2 /
T 'NEVADA' 132 'NEW HAMPSHR'
33 '1' /
L 'NEVADA' 132 'ARIZONA' 132 '1' /
L 'NEVADA' 132 'REUSENS' 132
'1'