GB1146220A - An emergency power supply - Google Patents

An emergency power supply

Info

Publication number
GB1146220A
GB1146220A GB48471/67A GB4847167A GB1146220A GB 1146220 A GB1146220 A GB 1146220A GB 48471/67 A GB48471/67 A GB 48471/67A GB 4847167 A GB4847167 A GB 4847167A GB 1146220 A GB1146220 A GB 1146220A
Authority
GB
United Kingdom
Prior art keywords
thyristors
mains
supply
pulse generator
energized
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
GB48471/67A
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of GB1146220A publication Critical patent/GB1146220A/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
    • H02J9/061—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 DC powered loads
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems

Abstract

1,146,220. Standby supply systems. INTERNATIONAL STANDARD ELECTRIC CORP. 25 Oct., 1967 [28 Oct., 1966], No. 48471/67. Heading H2H. An A.C. load 6 can be supplied alternatively from mains 1, 2 or a battery fed inverter output 31, 32 through interlocked electronic switch means 7, 8 dependent on whether the mains voltage is above or below a determined value. On mains failure, a pulse generator 11 is blocked by a voltage sensing device 10 via a NOR circuit 24 and a time delay circuit 23 is energized. After a half cycle delay to allow for the transition time, a pulse generator is energized firing thyristors 8. On restoration of the supply thyristors 8 are blocked and after a half cycle interval pulse generator 11 is energized firing thyristors 7. The time delays may be reduced if gate turn off thyristors with appropriate circuitry are employed. The pulse generators may be multivibrators. Circuits 19, 20 supply power alternatively to the control circuits. Device 10 may also provide a further time delay of say 1 sec. to allow on restoration of the supply mains transients to subside before switching over. The system may be adapted for multiphase operation.
GB48471/67A 1966-10-28 1967-10-25 An emergency power supply Expired GB1146220A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST026045 1966-10-28

Publications (1)

Publication Number Publication Date
GB1146220A true GB1146220A (en) 1969-03-19

Family

ID=7460822

Family Applications (1)

Application Number Title Priority Date Filing Date
GB48471/67A Expired GB1146220A (en) 1966-10-28 1967-10-25 An emergency power supply

Country Status (4)

Country Link
BE (1) BE705809A (en)
DE (1) DE1590623C3 (en)
GB (1) GB1146220A (en)
NL (1) NL6714611A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0132022A2 (en) * 1983-05-23 1985-01-23 Caloyeras, Inc. AC uninterruptible power system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3173422D1 (en) * 1981-04-30 1986-02-20 Michele Cerciello Control circuit for a device to commute from one alternating voltage to another
DE3209939C2 (en) * 1982-03-18 1984-03-08 Siemens AG, 1000 Berlin und 8000 München Uninterruptible power supply device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0132022A2 (en) * 1983-05-23 1985-01-23 Caloyeras, Inc. AC uninterruptible power system
EP0132022A3 (en) * 1983-05-23 1985-08-14 Caloyeras, Inc. Ac uninterruptible power system

Also Published As

Publication number Publication date
DE1590623C3 (en) 1975-05-07
DE1590623A1 (en) 1970-04-16
DE1590623B2 (en) 1974-08-29
NL6714611A (en) 1968-04-29
BE705809A (en) 1968-04-30

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