Electric lamp and discharge devices: systems – Plural load device systems
Patent
1995-02-09
1996-03-12
Gonzalez, Frank
Electric lamp and discharge devices: systems
Plural load device systems
315318, 315DIG4, H05B 3702
Patent
active
054989388
ABSTRACT:
A lighting system comprises a number of central power supplies, with each central power supply being powered from a 277 Volt/60 Hz power line and operative to provide a voltage output of 277 Volt RMS magnitude and 30 kHz frequency to each of a plurality of special incandescent lighting fixtures.
Each special lighting fixture comprises: i) an incandescent lamp designed to be properly powered by a voltage of 24 Volt RMS magnitude, and ii) a transformer operative to convert the 277 VoltRMS/30 kHz voltage to a 24 VoltRMS/30 kHz voltage.
The reason for using 24 Volt incandescent lamps is that, at the lumen output levels normally required of light bulbs used in general lighting applications, an incandescent light bulb designed for and operated on 24 Volt RMS exhibits substantially higher efficacy and/or durability for a given lumen output level as compared with a light bulb designed for and operated on 277 Volt RMS (or 120 Volt RMS). The reason for distributing power by way of 277 VoltRMS/30 kHz instead of 277 Volt/60 Hz (or 120 Volt/60 Hz) relates to the fact that size, weight, efficiency and cost of a transformer suitable for operation on 30 kHz are very much more advantageous than would be the case at 277 Volt/60 Hz (or 120 Volt/60 Hz).
REFERENCES:
patent: 2587169 (1952-02-01), Kivari
patent: 3525012 (1970-08-01), Dimitracopoulos
patent: 4001571 (1977-01-01), Martin
patent: 4207497 (1980-06-01), Capewell et al.
patent: 4207498 (1980-06-01), Spira et al.
patent: 4349863 (1982-09-01), Petersen
patent: 4443778 (1984-04-01), Mewissen
patent: 4591764 (1986-05-01), Nilssen
Gonzalez Frank
Ratliff Reginald A.
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