Electrical transmission or interconnection systems – Plural supply circuits or sources – Substitute or emergency source
Patent
1982-07-09
1984-01-17
Goldberg, Elliot A.
Electrical transmission or interconnection systems
Plural supply circuits or sources
Substitute or emergency source
307 23, 307150, G05D 2300
Patent
active
044265875
ABSTRACT:
The power supply system comprises three levels: a primary level (PRI), a secondary level (SEC), and a tertiary level (TER). The secondary level is constituted by power supply circuits (S1 to Sn) which provide galvanic isolation between the primary and the tertiary levels, and which provide at least one intermediate voltage at a fixed level relative to a system reference potential (point R). The tertiary level comprises chopper power supplies (RD), converters (CV), and inverters (OND) connected to user equipment (UT).
REFERENCES:
patent: 3949238 (1976-04-01), Brookes
patent: 4065711 (1977-12-01), Kawabata
patent: 4181842 (1980-01-01), Elias et al.
patent: 4313060 (1982-01-01), Fickenscher et al.
Proceedings of the National Electronics Conference, vol. 31, 1977, Oak Brook, Illinois (US) Hunter: A Modular DC Converter Power Plant, Concept for Large Electronic Telephone Systems, pp. 106-111.
Goldberg Elliot A.
Jennings Derek
Societe Anonyme dite: Compagnie Industrielle des Telecommunicati
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