GB679831A - Improvements in or relating to electrical power supply equipment - Google Patents

Improvements in or relating to electrical power supply equipment

Info

Publication number
GB679831A
GB679831A GB1352049A GB1352049A GB679831A GB 679831 A GB679831 A GB 679831A GB 1352049 A GB1352049 A GB 1352049A GB 1352049 A GB1352049 A GB 1352049A GB 679831 A GB679831 A GB 679831A
Authority
GB
United Kingdom
Prior art keywords
alternator
motor
clutch
mains
stand
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
GB1352049A
Inventor
Kenneth George Hodgson
Frank Fairley
Richard Kelly
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB1352049A priority Critical patent/GB679831A/en
Publication of GB679831A publication Critical patent/GB679831A/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
    • H02J9/066—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 characterised by the use of dynamo-electric machines

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)

Abstract

679,831. Emergency supply systems. STANDARD TELEPHONES & CABLES, Ltd. May 12, 1950 20, 1949; June 15, 1949], Nos. 13520/49 and 15967/19. Class 38 (iv). An alternator for continuously supplying a load is normally driven by a mains-fed A.C. or D.C. motor through a free-wheel clutch which, upon failure of the mains and consequent slowing of the motor, slips and actuates contacts (within the clutch) for bringing into operation stand-by means for driving the alternator and, preferably, also means for isolating the motor from the faulty mains. In the arrangement shown in Fig. 3 the stand-by means is a D.C. source which, upon slipping of the clutch, drives a D.C. motor coupled to the same shaft as the alternator. A fly-wheel maintains the alternator speed during changeover. In the modified system of Fig. 6, the stand-by means is an engine which is started, upon slipping of the free-wheel clutch, by energization of a magnetic clutch for coupling the alternator and engine together. The engine subsequently drives the alternator. To accelerate change-over, the motor may be braked upon mains failure. Specification 656,787 is referred to.
GB1352049A 1949-05-20 1949-05-20 Improvements in or relating to electrical power supply equipment Expired GB679831A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1352049A GB679831A (en) 1949-05-20 1949-05-20 Improvements in or relating to electrical power supply equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1352049A GB679831A (en) 1949-05-20 1949-05-20 Improvements in or relating to electrical power supply equipment

Publications (1)

Publication Number Publication Date
GB679831A true GB679831A (en) 1952-09-24

Family

ID=10024465

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1352049A Expired GB679831A (en) 1949-05-20 1949-05-20 Improvements in or relating to electrical power supply equipment

Country Status (1)

Country Link
GB (1) GB679831A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3514625A (en) * 1968-02-20 1970-05-26 Us Air Force System for providing uninterrupted electrical power
EP1261099A2 (en) * 2001-05-23 2002-11-27 General Electric Company Low-energy storage fast-start uninterruptible power supply system and method
BE1026574B1 (en) * 2018-08-28 2020-03-30 Euro Diesel S A Method of supplying an electrical appliance with direct current and accumulator of electrical energy

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3514625A (en) * 1968-02-20 1970-05-26 Us Air Force System for providing uninterrupted electrical power
EP1261099A2 (en) * 2001-05-23 2002-11-27 General Electric Company Low-energy storage fast-start uninterruptible power supply system and method
EP1261099A3 (en) * 2001-05-23 2005-08-17 General Electric Company Low-energy storage fast-start uninterruptible power supply system and method
US7129593B2 (en) 2001-05-23 2006-10-31 General Electric Company Low-energy storage fast-start uninterruptible power supply method
BE1026574B1 (en) * 2018-08-28 2020-03-30 Euro Diesel S A Method of supplying an electrical appliance with direct current and accumulator of electrical energy

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