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Handbook for Planning Data Services <br />Autotransformer impedance: <br />High -side (H) winding rated voltage <br />behalf, input the Owner's existing and new or <br />kV <br />Low -side (L) winding rated voltage <br />:1:3.2 <br />kV <br />Tertiary (T) winding rated voltage <br />circuit cases <br />kV <br />Winding leakage Impedance H -L <br />8.719 <br />% <br />(3- Phase) base MVA for H -L <br />36 <br />MVA <br />(3- Phase) load losses between HA <br />78,038 <br />W <br />Winding leakage impedance H -T <br />13.389 <br />% <br />(3- Phase) base MVA for H -T <br />12.6 <br />MVA <br />(3- Phase) load losses between H -T <br />39,098 <br />W <br />Winding leakage impedance L -T <br />9.478 <br />% <br />(3- Phase) base MVA for L -T <br />12.6 <br />MVA <br />(3- Phase) load losses between L -T <br />38,719 <br />W <br />Note: Information available on autotransfom7er manufacturer test report. <br />2. Provide a name and contact information to include with the data submittal to ERCOT <br />as necessary. Be accountable for the data produced including accuracy, timeliness, <br />and completeness. <br />3. When requested, Owner will work directly with ERCOT to address issues with <br />modeling data of Owner facilities. <br />LCRA Shall: <br />1. On Owner's <br />behalf, input the Owner's existing and new or <br />revised <br />facility data <br />necessary to <br />represent the Owner's transmission facilities in <br />short <br />circuit cases <br />(models). <br />2. Act as the Owner's designated agent in the ERCOT System Protection Working <br />Group. This is the working group that assists ERCOT with building and updating the <br />short circuit cases. <br />3. Send ERGOT acknowledgement of receipt of data to Owner. <br />Reference: <br />• ERCOT Planning Guide Section 6.3. <br />• ERCOT System Protection Working (SPWG) Procedures <br />JOlPag, Rev. 0 <br />