GB431252A - Improvements in lighting installations - Google Patents

Improvements in lighting installations

Info

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
Application number
GB4111/35A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB431252A publication Critical patent/GB431252A/en
Expired legal-status Critical Current

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.
GB4111/35A 1934-04-19 1935-02-08 Improvements in lighting installations Expired GB431252A (en)

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)

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