9.16  SWITCHED SHUNT DATA

This section contains switched shunt parameters.  The first line in the section must say: [SWITCHED SHUNT 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 switched shunt is attached, enclosed by quotation marks.

2.   Base kV: Nominal kV of the bus.

3.   In-Service Flag: 1 if the switched shunt is in-service; 0 if it is not.  The default value is 1.

4.   B: Positive-sequence shunt susceptance, B, in per unit.  The zero-sequence of the switched shunt is calculated automatically by the program.  The default value for B is 0.0.

5.   Control Mode Flag: 0 if the susceptance of the switched shunt is fixed.  1 if the susceptance of the shunt banks is switched on and off incrementally in discrete steps to regulate voltage.  2 if the susceptance of the shunt banks is adjusted continuously to regulate voltage.

6.   Min Target Voltage in per-unit: Ignored when the control mode is on "Fixed".  The default is 0.0.

7.   Max Target Voltage in per-unit:  Ignored when the control mode is on "Fixed".  The default is 0.0.

8.   Controlled Bus Name: Name of the bus whose voltage magnitude is to be regulated by the switched shunt.  The bus name is enclosed in quotation marks.

9.   Controlled Bus Base kV: Nominal kV of the bus whose voltage magnitude is to be regulated by the switched shunt. 

10. Number of Banks: A switched shunt can have up to 8 banks of capacitors and reactors.

11. Bank #1 Number of Steps: Number of steps for the first bank of capacitors and reactors. The number of steps in each bank can be any integer between 1 through 9, inclusive.  A value of 0 means that the bank, as well as all subsequent banks, are not in use.

12. Bank #2 Number of Steps: Number of steps for the second bank of capacitors and reactors.  

13. Bank #3 Number of Steps: Number of steps for the third bank of capacitors and reactors.  

14. Bank #4 Number of Steps: Number of steps for the fourth bank of capacitors and reactors.  

15. Bank #5 Number of Steps: Number of steps for the fifth bank of capacitors and reactors.  

16. Bank #6 Number of Steps: Number of steps for the sixth bank of capacitors and reactors.  

17. Bank #7 Number of Steps: Number of steps for the seventh bank of capacitors and reactors.  

18. Bank #8 Number of Steps: Number of steps for the eighth bank of capacitors and reactors.  

The next 16 items are the positive-sequence conductance and susceptance of the 8 banks.

19. Bank #1 G/Step: Per-unit positive-sequence conductance of each step for the first bank. This value is ignored in the current version of OneLiner.

20. Bank #1 B/Step: Per-unit positive-sequence susceptance of each step for the first bank.  The susceptance is positive for a capacitor and negative for a reactor.  The default value is 0.0.

21-22. Bank #2 G/Step and Bank #2 B/Step

23-24. Bank #3 G/Step and Bank #3 B/Step

25-26. Bank #4 G/Step and Bank #4 B/Step

27-28. Bank #5 G/Step and Bank #5 B/Step

29-30. Bank #6 G/Step and Bank #6 B/Step

31-32. Bank #7 G/Step and Bank #7 B/Step

33-34. Bank #8 G/Step and Bank #8 B/Step

The next 16 items are the zero-sequence conductance and susceptance of the 8 banks.

35. Bank #1 Go/Step: Per-unit zero-sequence conductance of each step for the first bank. This value is ignored in the current version of OneLiner.

36. Bank #1 Bo/Step: Per-unit zero-sequence susceptance of each step for the first bank. The default value is 0.0.  The susceptance is positive for a capacitor and negative for a reactor.  Enter zero if the bank is ungrounded.

37-38. Bank #2 Go/Step and Bank #2 Bo/Step

39-40. Bank #3 Go/Step and Bank #3 Bo/Step

41-42. Bank #4 Go/Step and Bank #4 Bo/Step

43-44. Bank #5 Go/Step and Bank #5 Bo/Step

45-46. Bank #6 Go/Step and Bank #6 Bo/Step

47-48. Bank #7 Go/Step and Bank #7 Bo/Step

49-50. Bank #8 Go/Step and Bank #8 Bo/Step

51. 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.

52. 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.

53. In-service Date: Set to 0 if not available. Otherwise enter an unsigned 32-bit integer that store the year/month/date information given by the CTime object in Microsoft Foundation Class.

54. Out-of-Service Date: Set to 0 if not available. Otherwise enter an unsigned 32-bit integer that store the year/month/date information given by the CTime object in Microsoft Foundation Class.

55. 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 switched shunt data section is shown below.

[SWITCHED SHUNT DATA]

'OHIO' 132= 1 5.24 1 0.88 1.1 'REUSENS' 132 8 1 2 2 4 8 3 3 8 /

0 0.6 0 0.4 0 0.7 0 0.11 0 0.5 0 0.3 0 0.45 0 0.2 /

0 0.3 0 0.2 0 0.7 0 0.12 0 0.44 0 0.22 0 0.7 0 0.5 /

'' '' 0 0