250W高压钠灯电感镇流器和电子镇流器性能分析
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英文
250W high pressure sodium lamp electronic ballast inductance ballasts and comparative analysis of performance and energy-saving
High-pressure sodium lamp is a high intensity gas discharge lamp, and its development began in 1955. Now, high-pressure sodium lamp life of up to 10,000 hours, light efficiency is higher than 100 lm / W. High-pressure sodium lamp work issued gold white light, it has a high luminous efficiency, low power consumption, long life, transparent fog ability and so on. Is widely used in roads, highways, airports, terminals, stations, squares, industrial and mining enterprises, parks and other venues lighting. High-color high-pressure sodium lamp is mainly used in sports centers, exhibition halls, casinos, department stores and hotels and other places lighting, is widely used.
The following pairs of commonly used high-pressure sodium lamp of 250W inductive and electronic ballasts for performance and energy efficiency were analyzed.
First, performance comparison
1.Their own power. 250W Ballast power consumption of about 22W,and with the output power increases. 250W electronic ballast power consumption of about 12W, and basically a constant value. Electronic Ballast own low power consumption, low temperature, the system efficiency.
2. With the benchmark light with the light effect. Ballast with the benchmark light, its luminous efficiency is about the base and the base lights with light ballast efficiency 0.95% -0.98%. Of high frequency electronic ballasts because the current lighting, its photoelectric conversion rate is slightly higher than the inductive ballast. Another self-power small electronic ballast, making it the benchmark light after the light efficiency is about supporting the base and the base lamp ballast with 110% optical efficiency.
3. Lamp life. Ballast is very difficult to start the feature is fully consistent with the lamp start-up requirements. When the input supply voltage variations and lamp aging, the lamp power fluctuations over large areas, greatly shorten the lamp life, increase the routine maintenance costs. Electronic ballasts can directly control the lamp current, in smaller start-up current, shortening the lamp start-up time. In a wide range of supply voltage variations and lamp aging, maintains constant lamp power, reducing the lamp light decline, thus greatly extending lamp life, reduce routine maintenance costs.
4.Input power voltage range. On the inductance ballast, lamp power supply voltage fluctuations with the input change. When the supply voltage is high, the lamp of serious super-power (when the input voltage to 250V,some inductance ballast output power up to 380W or so), ballasts and light fever severe, greatly reducing the lamp and the lamp life. The electronic ballast with constant power output. In a wide range of supply voltage changes, be able to maintain a constant lamp power, reducing the lamp light decline, thereby significantly extending the life of lamps and lighting.