GB703918A - Improvements in or relating to power supply systems using batteries - Google Patents

Improvements in or relating to power supply systems using batteries

Info

Publication number
GB703918A
GB703918A GB2865850A GB2865850A GB703918A GB 703918 A GB703918 A GB 703918A GB 2865850 A GB2865850 A GB 2865850A GB 2865850 A GB2865850 A GB 2865850A GB 703918 A GB703918 A GB 703918A
Authority
GB
United Kingdom
Prior art keywords
battery
load
supply
voltage
main source
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
GB2865850A
Inventor
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 GB2865850A priority Critical patent/GB703918A/en
Publication of GB703918A publication Critical patent/GB703918A/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

Landscapes

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

Abstract

703,918. Supply systems depending on two or more sources. STANDARD TELEPHONES & CABLES, Ltd. Nov. 23, 1951 [Nov. 23, 1950], No. 28658/50. Class 38 (4) Stand-by power supply equipment for a load. say, a telephone exchange, normally powered by a rectifier-unit, or other main source, having an output voltage equal to that required by the load, comprises a battery, normally floating across the main source, and a switching system manually or automatically operated upon failure of the main source whereby the battery supply voltage may be brought un to that required by the load by the introduction of one or more end cells, the supply to the load being maintained during the switching operation by a second battery. In one arrangement, Fig. 3, a load 24 is normally supplied from the A.C. mains over a rectifier 23 across which also floats either battery No. 1 or battery No. 2, according as to whether the movable contact 21 of an end-cell switch engages fixed contact 22a or 22b, the other battery being connected to a charger 26 over a switch 25. Trickle chargers 27, 28 are provided to enable the end cells of the two batteries to be charged independently of the other cells. If the main supply fails the floating battery maintains the supply to load, although probably at reduced voltage. The contact 21 is then moved to the right to increase the voltage to the desired value'by introduction of one or more end cells. Several other modified arrangements are described. Specifications 553,833, 641,791 and 641,794 are referred to.
GB2865850A 1950-11-23 1950-11-23 Improvements in or relating to power supply systems using batteries Expired GB703918A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2865850A GB703918A (en) 1950-11-23 1950-11-23 Improvements in or relating to power supply systems using batteries

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2865850A GB703918A (en) 1950-11-23 1950-11-23 Improvements in or relating to power supply systems using batteries

Publications (1)

Publication Number Publication Date
GB703918A true GB703918A (en) 1954-02-10

Family

ID=10279077

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2865850A Expired GB703918A (en) 1950-11-23 1950-11-23 Improvements in or relating to power supply systems using batteries

Country Status (1)

Country Link
GB (1) GB703918A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2130029A (en) * 1982-09-28 1984-05-23 Thye Nam Mak Improvements in battery power supply units

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2130029A (en) * 1982-09-28 1984-05-23 Thye Nam Mak Improvements in battery power supply units

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