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GB447455A - Improvements in or relating to electric supply systems - Google Patents

Improvements in or relating to electric supply systems

Info

Publication number
GB447455A
GB447455A GB1770335A GB1770335A GB447455A GB 447455 A GB447455 A GB 447455A GB 1770335 A GB1770335 A GB 1770335A GB 1770335 A GB1770335 A GB 1770335A GB 447455 A GB447455 A GB 447455A
Authority
GB
United Kingdom
Prior art keywords
inductance
load
supply
stabilizing
condenser
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
GB1770335A
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.)
Ferranti Electric Ltd
Original Assignee
Ferranti Electric Ltd
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 Ferranti Electric Ltd filed Critical Ferranti Electric Ltd
Priority to GB1770335A priority Critical patent/GB447455A/en
Publication of GB447455A publication Critical patent/GB447455A/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
    • H05B41/234—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 to eliminate stroboscopic effects, e.g. feeding two lamps with different phases

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

447,455. Supply systems for discharge tubes and arcs. FERRANTI, Ltd., Hollinwood, Lancashire.-(Ferranti Electric, Ltd. ; Mount Dennis, Toronto, Canada) June 20, 1935, No. 17703. [Class 38 (iv)] A load device having a negative impedance characteristic such as a discharge tube or arc is connected to an A.C. supply source through a stabilizing inductance, a load device of similar characteristic being connected to the same supply through a stabilizing capacity so that the total load taken from the supply has a high power factor. A discharge tube 5 may be supplied through a transformer 3, 6, stabilizing inductance being provided by the inherent reactance of the winding 6. The additional load device 7 is connected to an auxiliary winding 4 through a condenser 1 and an inductance 8 may be added either, separately or in the inductance of the winding 4. The ratings of the loads 5 and 7 are similar so that their wattless currents balance out. If the voltage required by the load is different from that of the condenser, it may be coupled to the condenser circuit through a further transformer, the primary of which is in series in the condenser circuit. Alternatively, the two circuits may be connected to two secondary windings 4, 6, Fig. 4, on the transformer, one of the secondaries 6 being in series with a part of the other. The load devices may be connected separately and directly to the supply mains or through separate transformers, each load circuit incorporating capacity or inductance stabilizing means and the resultant power factor being arranged to be high.
GB1770335A 1935-06-20 1935-06-20 Improvements in or relating to electric supply systems Expired GB447455A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1770335A GB447455A (en) 1935-06-20 1935-06-20 Improvements in or relating to electric supply systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1770335A GB447455A (en) 1935-06-20 1935-06-20 Improvements in or relating to electric supply systems

Publications (1)

Publication Number Publication Date
GB447455A true GB447455A (en) 1936-05-19

Family

ID=10099725

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1770335A Expired GB447455A (en) 1935-06-20 1935-06-20 Improvements in or relating to electric supply systems

Country Status (1)

Country Link
GB (1) GB447455A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2505025A1 (en) * 1981-04-30 1982-11-05 Ujero Mg Tsz Ricse Geminilux B LIGHTING APPARATUS SAVING ENERGY AND MATERIAL

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2505025A1 (en) * 1981-04-30 1982-11-05 Ujero Mg Tsz Ricse Geminilux B LIGHTING APPARATUS SAVING ENERGY AND MATERIAL

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