| 词条 | Chaira Hydro Power Plant |
| 释义 |
| name = Chaira Pumped Storage Hydro Power Plant | name_official = | image = PAVECChaira.jpg | image_caption = Belmeken Dam | image_alt = | coordinates = {{coord|42|9|32|N|23|52|15|E|region:BG_type:landmark|display=inline,title}} | country = Bulgaria | location = Pazardzhik Province | status = O | construction_began = | commissioned = 1995 (units 1 and 2) 1999 (units 3 and 4) | decommissioned = | cost = | owner = NEK EAD | operator = | psps_upper_res = Belmeken reservoir | psps_upper_res_capacity= | psps_penstocks = | psps_lower_res = | psps_lower_res_capacity= | psps_hydraulic_head = | psps_generators = | psps_pumpgenerators = | psps_pumps = | ps_units_operational= 4 x 216 MW reversible Francis turbine | ps_units_manu_model = Toshiba | ps_electrical_capacity= 864 MW | ps_electrical_cap_fac= | ps_annual_generation= | ps_cooling_source = | website = | extra = }} The Chaira Pumped Storage Hydro Power Plant (Chaira PSHPP) was built in the Rila mountains, about {{convert|100|km}} southeast of Bulgaria's capital city, Sofia. Chaira has generating capacity of {{convert|864|MW}} and a pumping capacity of {{convert|788|MW}}. The power plant is equipped with four reversible Francis pump-turbines, each rated at {{convert|216|MW}} in the generating mode, and {{convert|197|MW}} in pumping mode. Units 1 and 2 have been in operation since 1995, and at that time Chaira was the largest pumped-storage plant in southeast Europe with the highest head in the world for a single-stage pump turbine ({{convert|690|m}} generating and {{convert|701|m}} pumping). Units 3 and 4 came online in 1999. The pump-turbines and motor-generators were supplied by Toshiba, and three of them were manufactured under Japanese supervision in Bulgaria. The upper basin for Chaira is formed by the Belmeken Dam which connects to the pumped storage plant by two headrace tunnels with a diameter of {{convert|4.2|m}} and two penstocks with diameter {{convert|4.4|m}}, reducing to {{convert|4.2|m}}.[1] Outflow from the Belmeken reservoir supplies the Sestrimo Hydro Power Plant References1. ^Chaira PSP {{webarchive|url=https://web.archive.org/web/20110721073049/http://www.nek.bg/cgi?d=1432 |date=2011-07-21 }} {{stack|{{Portal|Bulgaria|Water|Renewable energy}}}}{{Power stations in Bulgaria}}{{hydroelectric-power-plant-stub}} 5 : Energy infrastructure completed in 1995|Energy infrastructure completed in 1999|Hydroelectric power stations in Bulgaria|Buildings and structures in Pazardzhik Province|Pumped-storage hydroelectric power stations in Bulgaria |
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