GB703918A - Improvements in or relating to power supply systems using batteries - Google Patents
Improvements in or relating to power supply systems using batteriesInfo
- 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
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.
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)
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 |
-
1950
- 1950-11-23 GB GB2865850A patent/GB703918A/en not_active Expired
Cited By (1)
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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