Energy saving device for public lighting system and method...

Details Energy saving device for public lighting system and method... Energy saving device for public lighting system and method...

H - Electricity

05

B

H05B 41/14 (2006.01) H02M 1/32 (2007.01) H02M 1/42 (2007.01)

Patent

CA 2566175

This invention is referred to an energy saving device which supplies the high efficiency sodium steam lamps and a method providing additional savings of electrical energy by means of the temporary reduction in the luminous flow of a high efficiency sodium steam lamp. The energy saving device includes in its operation protection against low voltage supply, regulation of supply voltage and protection in absence or damage of the lamp. In turn, the method includes a sequence for a reliable ignition of the lamp, a modulation routine in frequency for elimination of acoustic resonance and an automatic turn off sequence in view of damage of the photocell which is a consequence in this type of devices, as well as a consumption detection system to keep the output power steady and therefore, keep the power consumption under a steady value.

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