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- Valve_hall abstract "A valve hall is a building which contains the valves of the static inverters of a HVDC plant. The valves consist of thyristors, or at older plants, mercury arc rectifiers. Mercury arc rectifiers are usually supported by insulators mounted on the floor, while thyristor valves may be either supported by insulators or hung from the roof of the valve hall. The latter required a stronger ceiling structure, however the hall and the static inverter can better survive earthquakes compared to valve structures standing on the floor.A valve hall is equipped with heating and cooling equipment to control the temperature of the mercury arc rectifiers (which operate best over a narrow temperature range) or thyristors. The valve hall also protects the valves from weather and dust. Several valve assemblies, connected in series for the required terminal voltage, may be installed in the valve hall building. High voltage bushings are supported through the walls of the valve hall, to allow connections between the converter transformers on the one side and the DC switchyard on the other. Beside the valve hall there is often an additional building, in which are control electronics, equipment for valve cooling and valve monitoring, station service power distribution, and amenities for the plant workers. Because very high voltages are present while the inverters are in operation, access to the valve halls is limited while the static inverter is running. The auxiliary control building may have windows to observe the valve hall, but usually the converter is remotely controlled. To protect communication systems from electromagnetic interference, valve hall buildings must have shielding installed to control emission of radio-frequency energy.At some HVDC converters such as at Cabora-Bassa, outdoor valves are installed in oil-immersed containers. At such exceptional plants no valve halls or wall bushings are required.".
- Valve_hall thumbnail Pole_2_Thyristor_Valve.jpg?width=300.
- Valve_hall wikiPageID "1277289".
- Valve_hall wikiPageLength "2761".
- Valve_hall wikiPageOutDegree "11".
- Valve_hall wikiPageRevisionID "587268490".
- Valve_hall wikiPageWikiLink Bushing_(electrical).
- Valve_hall wikiPageWikiLink Cahora_Bassa_(HVDC).
- Valve_hall wikiPageWikiLink Category:High-voltage_direct_current.
- Valve_hall wikiPageWikiLink Earthquake.
- Valve_hall wikiPageWikiLink HVDC_converter_station.
- Valve_hall wikiPageWikiLink High-voltage_direct_current.
- Valve_hall wikiPageWikiLink Insulator_(electricity).
- Valve_hall wikiPageWikiLink Mercury-arc_valve.
- Valve_hall wikiPageWikiLink Thyristor.
- Valve_hall wikiPageWikiLink Transformer.
- Valve_hall wikiPageWikiLink File:Pole_2_Thyristor_Valve.jpg.
- Valve_hall wikiPageWikiLinkText "Valve hall".
- Valve_hall wikiPageWikiLinkText "Valve_hall".
- Valve_hall wikiPageWikiLinkText "hall".
- Valve_hall wikiPageWikiLinkText "inverter hall".
- Valve_hall wikiPageWikiLinkText "valve hall".
- Valve_hall wikiPageUsesTemplate Template:Refimprove.
- Valve_hall subject Category:High-voltage_direct_current.
- Valve_hall hypernym Building.
- Valve_hall type Building.
- Valve_hall comment "A valve hall is a building which contains the valves of the static inverters of a HVDC plant. The valves consist of thyristors, or at older plants, mercury arc rectifiers. Mercury arc rectifiers are usually supported by insulators mounted on the floor, while thyristor valves may be either supported by insulators or hung from the roof of the valve hall.".
- Valve_hall label "Valve hall".
- Valve_hall sameAs Q7912831.
- Valve_hall sameAs m.04phcc.
- Valve_hall sameAs Q7912831.
- Valve_hall wasDerivedFrom Valve_hall?oldid=587268490.
- Valve_hall depiction Pole_2_Thyristor_Valve.jpg.
- Valve_hall isPrimaryTopicOf Valve_hall.