TThhrreeee CCaassee SSttuuddiieess ooff HHiigghh RReelliiaabbiilliittyy PPoowweerr SSyysstteemmss KKeeeennee MM.. MMaattssuuddaa,, PP..EE.. SSeenniioorr MMeemmbbeerr IIEEEEEE IIEEEEEE//PPEESS DDiissttiinngguuiisshheedd LLeeccttuurreerr kkee..mmaattssuuddaa@@iieeeeee..oorrgg BBuueennooss AAiirreess,, AArrggeennttiinnaa JJuunnee 2255 && 2266,, 22000099 Project No. 1: H-3 Tunnel Project No. 1: H-3 Tunnel 1.6 km (1 mile) long, twin-bore (cid:132) 1.6 km (1 mile) long, twin-bore (cid:132) tunnel thru Koolau mountains tunnel thru Koolau mountains Part of 26-km highway in (cid:132) Part of 26-km highway in (cid:132) Honolulu, Hawaii Honolulu, Hawaii Tunnel connects Halawa valley to (cid:132) Tunnel connects Halawa valley to (cid:132) west and Haiku valley to east west and Haiku valley to east Cost: $1.3 billion (US) = 90% from (cid:132) Cost: $1.3 billion (US) = 90% from (cid:132) FHWA + 10% from HDOT FHWA + 10% from HDOT Photo: Haiku Portal Photo: Haiku Portal Haiku Portal - Inbound Tunnel Haiku Portal - Outbound Tunnel Photo: Haiku Cross-Over Photo: Haiku Cross-Over Haiku Cross- Over Vault 4 Sources of power 4 Sources of power For high reliability, 4 sources: (cid:132) For high reliability, 4 sources: (cid:132) 2 utility HV transmission circuits (cid:132) 2 utility HV transmission circuits (cid:132) 1-500 kW emergency generator (cid:132) 1-500 kW emergency generator (cid:132) Numerous UPS and (cid:132) Numerous UPS and (cid:132) battery/inverter units battery/inverter units Utility power source Utility power source 2-46 kV HECO transmission lines (cid:132) 2-46 kV HECO transmission lines (cid:132) for high reliability for high reliability Radial circuits terminate at portal (cid:132) Radial circuits terminate at portal (cid:132) substations: Halawa & Haiku substations: Halawa & Haiku Separate substations for (cid:132) Separate substations for (cid:132) redundancy redundancy 10 MVA, 46-12.47 kV transformer, (cid:132) 10 MVA, 46-12.47 kV transformer, (cid:132) fully sized for redundancy fully sized for redundancy Photo: Transformer Photo: Transformer HECO 46 kV Incoming Ckt Photo: Transformer Photo: Transformer HECO 10 MVA Substation Slide 8 Emergency power sources Emergency power sources Emergency diesel engine- (cid:132) Emergency diesel engine- (cid:132) generator: 500 kW, 480 V generator: 500 kW, 480 V UPS units (15 min. battery (cid:132) UPS units (15 min. battery (cid:132) capacity): computer-type loads capacity): computer-type loads Fast transfer battery/inverter units (cid:132) Fast transfer battery/inverter units (cid:132) (90 min. battery capacity): HID (90 min. battery capacity): HID lighting lighting Photo: Transformer Photo: Transformer 500 kW Emergency Generator Slide 10
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