Commuter Rail AC Electrification Load-Flow Simulation Report - RTD

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Commuter Rail AC Electrification Load-Flow Simulation Report Revision 1 Electrical Data The electrical data for the load flow simulation was obtained from several sources. The following is a summary of the sources of the electrical data. The feeder and catenary cables mutual impedances were obtained from the 2004 ASME/IEEE Joint Rail Conference paper titled “Determination of traction power distribution system impedances and susceptances for AC railroad electrification systems”. This paper is included as an appendix. The conductors utilized for the distribution system were as follows: • Feeder Wire, 556kcmil ACSR • Messenger Wire, 4/0 AWG, Hard Drawn (H.D) Stranded Copper • Contact Wire, 4/0 AWG, H.D Grooved Cooper • Static Wire, 336.4kcmil ACSR • Running Rail, 132RE For preliminary locations of the two (2) traction power substations were selected in consultation with RTD, while the preliminary locations of the paralleling stations (autotransformers) and switching station were developed by FRSC. There are three paralleling stations on the North Metro corridor, one on the Gold Line and two on the East Corridor. The traction power substations are located on the Gold Line (Argo Substation) and on the East Corridor (Sandown Substation). There is a single switching station located on the East Corridor and a ‘T-splice’ for the Auto-transformer feeder cables located North (outside the throat) of the DUS. The utility supply points were assumed to be transmission lines operating at 115kV transmission voltage. Preliminary Xcel information indicated 115kV system fault level of approximately 34,000A, which is equivalent to 6,910MVA, three-phase. Adjusting for phase-to-phase connection yields a short circuit value of 6,910*2/(sqrt(3)) = 5,985 MVA or 59.85 p.u. phase to phase, resulting in utility system equivalent impedance of (1/59.85)= 0.0167 p.u. The traction power transformer reactance was assumed 7% on own rating of 10 MVA and auto-transformer reactance was assumed 1.5% on own rating of 2 MVA. The table below shows the locations of the substations, paralleling stations, and switching stations and its respective transformer rating and assumed reactance value that was used to develop the RTD’s AC commuter rail database for the load flow simulation. 02/27/2009 FRSC Page 52 of 250
Commuter Rail AC Electrification Load-Flow Simulation Report Revision 1 Two Transformers in Sandown Substation, Two Transformers in Argo Substation Number Routes Substations of Traction Rating Impedance XFRMR XFRMR Paralleling Switching Number Stations Stations of ATs Power (MVA) value XFRMs PS-3 (MP 11.2) 1 2 j0.015 Gold Line East Corridor North Metro Corridor Routes Gold Line East Corridor North Metro Corridor TPS-2 (MP 2.0) TPS-1 (MP 6.0) PS-1 (MP 13.1) PS-2 (MP 17.5) PS-4 (MP 4.0) PS-5 (MP 11.0) PS-6 (MP18.0) SW-1 (MP 0.8) 2 10 j0.07 2 2 j0.015 2 10 j0.07 1 2 j0.015 1 2 j0.015 1 2 j0.015 1 2 j0.015 1 2 j0.015 Two Transformer in Sandown Substation, One Transformer in Argo Substation Number of Traction Rating Impedance XFRMR XFRMR Paralleling Switching Number Substations Stations Stations of ATs Power (MVA) value XFRMs PS-3 1 2 j0.015 (MP 11.2) TPS-2 (MP 2.0) TPS-1 (MP 6.0) PS-1 (MP 13.1) PS-2 (MP 17.5) PS-4 (MP 4.0) PS-5 (MP 11.0) PS-6 (MP18.0) SW-1 (MP 0.8) 1 10 j0.07 2 2 j0.015 2 10 j0.07 1 2 j0.015 1 2 j0.015 1 2 j0.015 1 2 j0.015 1 2 j0.015 02/27/2009 FRSC Page 53 of 250
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This document contains all RR input
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# Location Distance Grade Speed Sta
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Track Data For Track: East Corridor
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28Jan2009 Track: East Corridor - WB
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Track Data For Track: DUS - IB East
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Track Data For Track: DUS - OB East
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28Jan2009 Track: East Corridor - EB
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28Jan2009 Track: East Corridor - EB
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28Jan2009 Track: Gold Line - EB MP
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Track Data For Track: Gold Line - E
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Track Data For Track: Gold Line - E
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28Jan2009 Track: DUS - IB Gold Line
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28Jan2009 Track: DUS - OB Gold Line
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28Jan2009 Track: Gold Line - WB DUS
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28Jan2009 Track: Gold Line - WB MP
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Track Data For Track: Gold Line - W
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Track Data For Track: Gold Line - S
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Track Data For Track: North Metro -
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28Jan2009 Track: North Metro - SB M
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28Jan2009 Track: DUS - IB North Met
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28Jan2009 Track: DUS - OB North Met
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28Jan2009 Track: North Metro - NB D
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28Jan2009 Track: North Metro - NB M
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28Jan2009 Track: North Metro - Sing
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28Jan2009 Track: North Metro - Sing
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28Jan2009 Substations Substations R
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Data For AC Feeder: East Corridor -
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Data For AC Feeder: Gold Line - Eas
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Data For AC Feeder: North Metro Run
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Speed (mph) TE (lbs) Eff. (dec) 75
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Train 5 Train 6 Train 7 Train 8 Tra
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RR Trains Name Train 1 Train 2 Trai
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Train 10 Train 11 Train 12 Train 13
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RR Trains Name Train 1 Train 2 Trai
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Commuter Rail AC Electrification Load-Flow Simulation Report - RTD

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