9.15  SHUNT UNIT DATA

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

2.   Base kV: Nominal kV of the bus.

3.   Shunt Unit Identifier: A 2-character identifier used to differentiate between multiple shunt units on the same bus.  The identifier is enclosed in quotation marks. 

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

5.   G: Positive-sequence shunt conductance, G, in per unit.  The same value is used in the negative sequence.  The default value is 0.0.

6.   B: Positive-sequence shunt susceptance, B, in per unit.  The same value is used in the negative sequence.  B is positive for capacitors and negative for reactors.  The default value is 0.0.

7.   G0: Zero-sequence shunt conductance in per unit.  The default value is 0.0.

8.   B0: Zero-sequence shunt susceptance in per unit.  The default value is 0.0.

9.   3-Winding Transformer Shunt Flag: 1 if the shunt is part of the T model of a 3-winding transformer; 0 if is not.  The default value is 0.  This flag is for output purposes only.  It has no effect on the solution.

10. 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.

11. 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.

12. 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.

An example shunt unit data section is shown below.

[SHUNT UNIT DATA]

'OHIO' 132 '1'= 1 0 0 0.3 0.8 0 '' 0 0

'ROANOKE' 13.8 '1'= 1 0.2 0.3 0.5 0.7 0 '' 0 0

'WASHINGTON' 33 '1'= 1 0.01 0.07 0.3 0.7 0 '' 0 0
'OREGON' 33 '1'= 1 0 0.03 0 0 0 'rgCap1\crgCap2\c' 1767254400 1546329600