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Home » FAQs » Electronic ballasts, power factor and harmonic performance
Electronic ballasts, power factor and harmonic performance
2013-03-24 07:37:48
 

1,Fluorescent lamp electronic ballast ,in order to ensure normal ignited, and achieve the performance indicators, electronic ballasts should be consistent with the requirements of national standard GB15143 and GB / T 15144.
2. Rated supply voltage and voltage transformation range. Ballast housing or in the terminal at the end of the AC input should be clear signs of the parameters. Indicated a wide voltage range (eg, 100 to 250V), selection is necessary to sedate. 100V will be able to start properly ballast for power frequency voltage rating or higher (240V) field seasonal series resonant voltage across the capacitor is particularly very high impact, not only on the lamp, and could be damaged other elements.
2,rated output power or power matching lamps with electronic ballasts, model and carried by the tube counts. Lamp power should be matched with electronic ballasts, and some ballast called "connected with 16 ~ 40W fluorescent lamp", should not be optional. Ballast carrying the best power is certain, it is not possible to accommodate such a large scope of this impossible to meet the performance of the fluorescent ballast.
3,line power factor λ. Although national standards do not set the lower limit of the rated supply voltage, rated frequency, and fluorescent lamp supporting line power factor λ ≥ 0.90.
4,supply current harmonic content flag "L" or the "H." Electronic ballasts and fluorescent lamps rated voltage, reach stable working conditions, with the "L" and "H" logo electronic ballast supply current harmonic content does not exceed the national standard GB / T 15144 and GB T 17263 provisions, such as shown in the table.
5,Only capacitor filter, the harmonic content of the supply current will not reach the level of the "H" level and the "L" level. Extensive use of electronic ballasts spaces, harmonic content must reach the level of "L" or "H" level, otherwise it will affect the running of the supply network security.Lamp warm-up time. Not less than 0.4 seconds.

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