China Lighting Appliance Street Street Light Savings Reconstruction Zhang Wankui Yueyang Teachers College Yueyang City 4140001 High Pressure Sodium Lamp Equivalent Circuit High pressure sodium lamp illuminator is a working circuit with a ballast trigger. The power ballast lamp in the circuit does not satisfy the right angle relationship between the triggers. It is found that the lamp voltage is ahead of the lamp current, and the lamp is also inductive. Its equivalent circuit 1. There is a voltage-impedance distribution model between the authors of the article 1 is the pressure, 22, 2 are the input impedance ballast impedance and the lamp impedance, respectively. Calculated for the power of the lamp.
2 street lights automatically transform the urban street lights with special transformer power supply, phase line power distribution, each phase load is more balanced. There are two kinds of control methods: light control and time control. 2. After the photosensitive relay 1 is activated in the evening, the AC contactor 1 is sucked and the street lamp is illuminated.
In order to save electricity and extend the life of the lamp, according to the requirements of late-night road lighting, the voltage is automatically reduced after the late hours, 3.
As long as the intermediate relay 1 is added to the control cabinet, the relay 10 is connected to the AC contactor 2, and the main contacts of the 2 are connected in the neutral line. The other power supply and distribution systems and control methods do not need to be changed. When 1 action, the old Xinjiang 2 is electrified, the street light starts to delay, the delay after 4 is disconnected, the normally closed contact is disconnected, 1 leg 2 is de-energized, the neutral line is disconnected, and the street lamp is connected in series. Voltage, each lamp withstand 3 load analysis with high pressure sodium lamp, 0250 for example power 250 power supply voltage 220, lamp voltage 1001 lamp current for 3 people. Ballast impedance 60 voltage 180. Input impedance 2 when the power supply voltage drops to 190, the lamp power supply = 2.59 people, the actual power consumption of the lamp is 2.59, when the power supply voltage drops to 200, the lamp current = 2.727, the lamp can also find the lamp Voltage 90.81 ballast voltage 163.1.
1 Jiang Qipeng. 6, the characteristics of the high-pressure sodium lamp at the frequency. In this article, Zhang Zhiying Fuhua Electronics Co., Ltd. is hiring a bachelor's degree or above; the industry's electric light source power electronic and electronic technology; the qualifications have more than one year of work experience is preferred; the age of 25,40 has the professional experience of the profession; If you are interested in 6 people, please contact us and hire them.
Address: Mr. Li, Chaoyang District, Chaoyang District, Beijiao City, Mr. Li Wuxi Jisheng Magnetic Devices Co., Ltd. Yumei Telecommunications Equipment Factory The company is a professional manufacturer of magnetic materials and inductors. The public magnetic core has a negative temperature range which is reduced with the increase of the ambient temperature, and the lowest power of the material is produced by the material of the factory and the permeability of the material. Around 1 or so, the magnetic ring of this material can improve the stability and reliability of the energy-saving lamp. 8 ports are inquiries from 4 related manufacturers, welcome to visit our website.
The factory is located in the former village industrial park of Xicheng Road, Wuxi, Jiangsu Province. 214046 l0137619l6167 Fax pain, the leg must contact Jin Minkun Yuan Shaoming Ma Jinghui
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