Matches in DBpedia 2016-04 for { <http://wikidata.dbpedia.org/resource/Q233002> ?p ?o }
Showing triples 1 to 28 of
28
with 100 triples per page.
- Q233002 subject Q6258280.
- Q233002 abstract "Two-phase electrical power was an early 20th-century polyphase alternating current electric power distribution system. Two circuits were used, with voltage phases differing by one-quarter of a cycle, 90°. Usually circuits used four wires, two for each phase. Less frequently, three wires were used, with a common wire with a larger-diameter conductor. Some early two-phase generators had two complete rotor and field assemblies, with windings physically offset to provide two-phase power. The generators at Niagara Falls installed in 1895 were the largest generators in the world at that time and were two-phase machines. As of 21st century, two-phase power was superseded with three phases and is not used in the industry. There remains, however, a two-phase commercial distribution system in Philadelphia, Pennsylvania; many buildings in Center City are permanently wired for two-phase and PECO (the local electric utility company) has continued the service. This type of service happens to exist in Hartford, Connecticut. It does serve a few buildings in that city.".
- Q233002 thumbnail Elementary_Two_Phase_Alternator.jpg?width=300.
- Q233002 wikiPageWikiLink Q11658.
- Q233002 wikiPageWikiLink Q1239874.
- Q233002 wikiPageWikiLink Q124164.
- Q233002 wikiPageWikiLink Q131502.
- Q233002 wikiPageWikiLink Q1345.
- Q233002 wikiPageWikiLink Q1400.
- Q233002 wikiPageWikiLink Q185553.
- Q233002 wikiPageWikiLink Q207450.
- Q233002 wikiPageWikiLink Q260295.
- Q233002 wikiPageWikiLink Q34221.
- Q233002 wikiPageWikiLink Q391639.
- Q233002 wikiPageWikiLink Q43035.
- Q233002 wikiPageWikiLink Q471846.
- Q233002 wikiPageWikiLink Q48103.
- Q233002 wikiPageWikiLink Q4915480.
- Q233002 wikiPageWikiLink Q552380.
- Q233002 wikiPageWikiLink Q6258280.
- Q233002 wikiPageWikiLink Q7118900.
- Q233002 wikiPageWikiLink Q72313.
- Q233002 wikiPageWikiLink Q7370264.
- Q233002 wikiPageWikiLink Q840970.
- Q233002 wikiPageWikiLink Q918903.
- Q233002 comment "Two-phase electrical power was an early 20th-century polyphase alternating current electric power distribution system. Two circuits were used, with voltage phases differing by one-quarter of a cycle, 90°. Usually circuits used four wires, two for each phase. Less frequently, three wires were used, with a common wire with a larger-diameter conductor. Some early two-phase generators had two complete rotor and field assemblies, with windings physically offset to provide two-phase power.".
- Q233002 label "Two-phase electric power".
- Q233002 depiction Elementary_Two_Phase_Alternator.jpg.