GB750270A - Improvements in electric power supply systems - Google Patents

Improvements in electric power supply systems

Info

Publication number
GB750270A
GB750270A GB369354A GB369354A GB750270A GB 750270 A GB750270 A GB 750270A GB 369354 A GB369354 A GB 369354A GB 369354 A GB369354 A GB 369354A GB 750270 A GB750270 A GB 750270A
Authority
GB
United Kingdom
Prior art keywords
stand
main
accumulator
alternator
valve
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
GB369354A
Inventor
Paul Rohatyn
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.)
British Telecommunications PLC
British Telecommunications Research Ltd
Original Assignee
British Telecommunications PLC
British Telecommunications Research 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 British Telecommunications PLC, British Telecommunications Research Ltd filed Critical British Telecommunications PLC
Priority to GB369354A priority Critical patent/GB750270A/en
Publication of GB750270A publication Critical patent/GB750270A/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
    • H02J9/08—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 requiring starting of a prime-mover

Landscapes

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

Abstract

750,270. Generating arrangements. BRITISH TELECOMMUNICATIONS RESEARCH, Ltd. Jan. 14, 1955 [Feb. 8, 1954], No. 3693/54. Class 38 (4). The driving of a generator, upon failure of a main prime-mover, is taken over by a stand-by engine or motor which is automatically started up, the drive being maintained during the starting period of the stand-by machine by a hydraulic or other fluid-pressure motor automatically connected for supply from a fluidpressure accumulator when the main primemover failed, the accumulator normally being maintained charged by means energized by the generator. In the arrangement shown in Fig. 1, an alternator 10 is driven by a hydraulic motor 12 which is supplied either by pumps 14, 18- driven, respectively, by main and stand-by prime movers 13, 17-or by an accumulator 21, normally maintained charged by a motordriven pump 24, 25 supplied over a switch 29 from the alternator. Valves 16, 23 automatically shut and open, respectively, upon failure of the main machine 13, say as a result of the fall in speed, or frequency, of the alternator, valve 23 subsequently closing and valve 20 opening when the pressure developed by pump 18 of the stand-by machine reaches working value. The re-charging switch 29 and associated valve 27 may be controlled by the pressure obtaining in the accumulator. In a modified arrangement the hydraulic motor is in service only during the change-over period between main and stand-by drive.
GB369354A 1954-02-08 1954-02-08 Improvements in electric power supply systems Expired GB750270A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB369354A GB750270A (en) 1954-02-08 1954-02-08 Improvements in electric power supply systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB369354A GB750270A (en) 1954-02-08 1954-02-08 Improvements in electric power supply systems

Publications (1)

Publication Number Publication Date
GB750270A true GB750270A (en) 1956-06-13

Family

ID=9763171

Family Applications (1)

Application Number Title Priority Date Filing Date
GB369354A Expired GB750270A (en) 1954-02-08 1954-02-08 Improvements in electric power supply systems

Country Status (1)

Country Link
GB (1) GB750270A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3283165A (en) * 1963-08-22 1966-11-01 Dynamics Corp America No break power system
DE4003972A1 (en) * 1989-02-10 1990-08-16 Itisa UNLIMITED AUTONOMOUS POWER UNIT FOR MAINTAINING AN UNINTERRUPTED POWER SUPPLY WITHOUT THE HELP OF BATTERIES
GB2261778A (en) * 1991-11-19 1993-05-26 Itisa Constant energy feed system to the shaft of a synchronous dynamoelectric machine; standby power supply

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3283165A (en) * 1963-08-22 1966-11-01 Dynamics Corp America No break power system
DE4003972A1 (en) * 1989-02-10 1990-08-16 Itisa UNLIMITED AUTONOMOUS POWER UNIT FOR MAINTAINING AN UNINTERRUPTED POWER SUPPLY WITHOUT THE HELP OF BATTERIES
GB2229329A (en) * 1989-02-10 1990-09-19 Itisa Uninterruptible power supply (UPS)
GB2229329B (en) * 1989-02-10 1993-10-06 Itisa Uninterruptable power supply apparatus
US5373198A (en) * 1989-02-10 1994-12-13 Investigation Tecnica Industrial, S.A. Uninterrupted electric feed system with unlimited autonomy without electric accumulators
GB2261778A (en) * 1991-11-19 1993-05-26 Itisa Constant energy feed system to the shaft of a synchronous dynamoelectric machine; standby power supply
ES2056712A2 (en) * 1991-11-19 1994-10-01 Itisa Constant energy feed system to the shaft of a synchronous dynamoelectric machine standby power supply
GB2261778B (en) * 1991-11-19 1996-02-07 Itisa Uninterruptible power supply

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