GB431252A - Improvements in lighting installations - Google Patents
Improvements in lighting installationsInfo
- Publication number
- GB431252A GB431252A GB4111/35A GB411135A GB431252A GB 431252 A GB431252 A GB 431252A GB 4111/35 A GB4111/35 A GB 4111/35A GB 411135 A GB411135 A GB 411135A GB 431252 A GB431252 A GB 431252A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transformers
- supplied
- transformer
- wingings
- emmasingel
- 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
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/16—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies
- H05B41/20—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch
- H05B41/23—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode
- H05B41/232—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode for low-pressure lamps
- H05B41/2325—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode for low-pressure lamps provided with pre-heating electrodes
Landscapes
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
431,252. Supplying consuming devices. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Feb. 8, 1935, No. 4111. Convention date, April 19, 1934, [Class 38 (iv)] Relates to an arrangement in which a number of incandescent cathode gasfilled lamps 1, 2 are supplied from series connected transformers 6, 7 and consists in connecting a choke 9 in parallel with some of the transformers in order to reduce the time lag during starting. The cathodes may be supplied from tapped portions of the secondary wingings. Auto-transformers may be employed. The source of supply may be through a high reactance transformer which is preferably a movable winding constant current transformer.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL431252X | 1934-04-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB431252A true GB431252A (en) | 1935-07-03 |
Family
ID=19786151
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4111/35A Expired GB431252A (en) | 1934-04-19 | 1935-02-08 | Improvements in lighting installations |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB431252A (en) |
-
1935
- 1935-02-08 GB GB4111/35A patent/GB431252A/en not_active Expired
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