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GB1428982A - 3-phase power supply arrangements - Google Patents

3-phase power supply arrangements

Info

Publication number
GB1428982A
GB1428982A GB3166372A GB3166372A GB1428982A GB 1428982 A GB1428982 A GB 1428982A GB 3166372 A GB3166372 A GB 3166372A GB 3166372 A GB3166372 A GB 3166372A GB 1428982 A GB1428982 A GB 1428982A
Authority
GB
United Kingdom
Prior art keywords
outputs
phase
inverters
power supply
filters
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3166372A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BAE Systems Electronics Ltd
Original Assignee
Marconi Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Marconi Co Ltd filed Critical Marconi Co Ltd
Priority to GB3166372A priority Critical patent/GB1428982A/en
Publication of GB1428982A publication Critical patent/GB1428982A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Stand-By Power Supply Arrangements (AREA)

Abstract

1428982 Combining inverters MARCONI CO Ltd 31 May 1973 [6 July 1972] 31663/72 Heading H2F In a three-phase A.C. power supply, arranged to be free from momentary interruption, two inverters 9, 9<SP>1</SP> are arranged to operate with phase-displaced outputs and have energy storing devices such as filters 10, 11 connected across said outputs, means for restoring the inphase relationship between their outputs and means for combining the outputs of said restoring means. As described, the 50 Hz mains 3 is supplied via circuit breakers 4 and voltagechanging transformers 5 to rectifiers 6, 6<SP>1</SP> having floating batteries 8, 8<SP>1</SP> and feeding three-phase inverters 9, 9<SP>1</SP> using thyristors (not shown) and having wave-shaping, energy-storing filters 10, 11. The inverters 9, 9<SP>1</SP> operate in quadrature so that, in the event of a momentary interruption or of a transient load, there is always some energy stored by one of the filters 10, 10<SP>1</SP>. The outputs are restored in phase by means of zigzag or star-delta transformers 12, 12<SP>1</SP> before being combined via three-phase circuit-breakers 13, 13<SP>1</SP> in bus-bars 14. The invention is applicable to power supply for computers. Three channels displaced by 60 degrees are also envisaged.
GB3166372A 1972-07-06 1972-07-06 3-phase power supply arrangements Expired GB1428982A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3166372A GB1428982A (en) 1972-07-06 1972-07-06 3-phase power supply arrangements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3166372A GB1428982A (en) 1972-07-06 1972-07-06 3-phase power supply arrangements

Publications (1)

Publication Number Publication Date
GB1428982A true GB1428982A (en) 1976-03-24

Family

ID=10326535

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3166372A Expired GB1428982A (en) 1972-07-06 1972-07-06 3-phase power supply arrangements

Country Status (1)

Country Link
GB (1) GB1428982A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2075930A (en) * 1980-04-29 1981-11-25 Weber Martin Hydraulic locking unit for locking tippable driving cabs of lorries
GB2111326A (en) * 1981-12-01 1983-06-29 Chloride Group Ltd No-break power supply

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2075930A (en) * 1980-04-29 1981-11-25 Weber Martin Hydraulic locking unit for locking tippable driving cabs of lorries
GB2111326A (en) * 1981-12-01 1983-06-29 Chloride Group Ltd No-break power supply

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee