V/V_0变压器-高压钠灯节电照明系统

V/V_0 Transformer-power Saving High-voltage Sodium Lamp Lighting System

城市路灯用电量比较大，在不影响深夜道路照明的前提下，适当降低加在路灯上的电压，节电效果明显，经测算，节电率达为16．1％～17．4％。推出一种路灯自动降压控制器，控制V／V0专用路灯变压器的零线自动开断而降压节电。

Urban public lighting system is of high electricity consumption. On the basis of not affecting the street lighting at night, relevant decrease of electricity voltage of the street lamp will lead to obvious power saving effect. According to the testing and calculation, the power saving rate Would reach 16.1%～17.4%. An automatic voltage decreasing controller for street lamp, which controls the N-line of the V/V0 street lamp, will automatically disconnect so as to achieve voltage decrease and power saving.