摘要
本文论述了一种新型高效节能双管荧光灯镇流器的结构和原理,推求了该镇流器电参数的估算公式,提供了30W及40W双管荧光灯采用该镇流器和采用两个通用的电感式镇流器时的对比实验数据,结果表明:在荧光灯光输出相同的前提下,采用该镇流器不仅接入电路的功率因数高,可减少输入电流50%;而且可减少输入有功功率,30W及40W双灯节能镇流器,在额定电压下,可减少输入有功分别为7W和5W左右。电路总体可节约有功20%,节约无功80%。
In this paper, the principle of start--work and economizing electricityDouble-tube Fluorescent Lamp's Ballast (DFLB) was elaborated, a formulafor reckoning electric factors of the new DFLB, and the data of contrastexperiments were provided, in which 30 W and 40 W double-tube fluorescentlamps were connected with the new DFLB and two normal inductive ballastsseparately. The results indicate that on the premise that the light outputfrom the fluorescent lamps keep same, the DFLB not only raises the powerfactors of the circuit, reduces the electric current input by 50%, but alsoreduces active power input. With the rated voltage, 30 W DFLB can economizeon active power input by about 7W, the circuit can save active power by 20%and idle power by 80% in all.
关键词
双管荧光灯
镇流器
有功功率
Fluorescent Lamp
Ballast
Active power input
Loss of active power
Electric circuit
Power factor
