Analysis of energy saving technology and product selection principle

The European IEC555-2 standard, which was replaced by EN61000-3-2, took the lead in putting forward the requirements for the harmonic current of the electrical equipment, which promoted the research and development of the global PFC technology. Street lamp energy saving, standard first, is very necessary. In fact, street lamps energy-saving products are far ahead of the standard, and the characteristics of the industry do not adapt to some of the products, resulting in a lot of unnecessary losses and waste.

LED lights have many advantages, but also have shortcomings, the current use of LED lamp is also very high, but according to the Chinese energy information network to the latest reports, the polysilicon for solar photovoltaic power generation is of high energy consumption and high pollution products, at the same time, there are also people who believe that the solar power generation system of electric energy regeneration the ratio is too low, the application of a substantially similar solar street lamps is a waste of energy, solar street lamps should not be extended. In this paper, the LED street lamp is not in-depth analysis, below we from the high intensity gas discharge lamp and the like, such as street lamps to save the life of the lamp to talk about some superficial view.

For the choice of light street lights, electrical appliances, energy saving and extend the life of the lamp, we recommend the quality of the electronic ballast.

For the use of centralized streetlight Saver, we should start from the perspective of system engineering, adhere to the following three principles: one is to prolong the life of lamps is not reduced, two hurt street lamp transformer, three section electrical products and its high reliability, does not require additional maintenance. Based on these three principles, in the current centralized streetlight saver in every kind of, we recommend the use of product and the high frequency switching power supply voltage of the electromagnetic adjustable contact pressure products, a precondition for the use of these two products is their technology must be pass, that is to say in the process of regulating pressure, can do not over voltage or voltage drop, current continuous and non impact. The contactless electromagnetic voltage regulator function has the advantages of simple products, we have a few years of practical experience, the voltage is high, it is the highest blood pressure reached 4 * 12V (we do not recommend the use of such a high gear voltage), does not produce off phenomenon, and can really prolong the life of lamps and to reduce the maintenance workload. For high frequency switching power supply voltage regulation products, but only according to the theoretical analysis and the promotion of individual manufacturers recommended. By the way, it is not desirable to pursue the electricity saving rate for the Lantern festival.

Also referred to as non contact voltage regulator or regulated products, due to the different levels of technology, design or production of products with a large difference in performance. Some contactless voltage technology has not yet fully passed, in the stall switch may have generated voltage or voltage drop, current interruption or the current impact, and to the use of electrical load or regulator surrounding the bad influence of this kind of product is usually used in electrical circuits, high leakage inductance and resistance like the current limiting reactance transformer components, or in the stall switch use for a long time (close to milliseconds) discontinuous.

For the current interruption is not strictly required equipment or computer class in front of the rectifying device, electrical products, intermittent 10 msec or drop instantly, has no effect on the work, but for high strength gas discharge lamp sodium lamp type, current millisecond interruption may cause arc instability, even out, out in the hot immediately re trigger will affect the life of lamps, which is the main reason for some Street Department said "using electricity will shorten the life of lamps". If the voltage generated when the voltage or voltage drop was causing the lamp extinguished instantly and restart the lamp life will be affected, this is in accordance with the relevant technical articles and the conclusion of our large test, correct discussion.

A non-contact electromagnetic pressure regulating technology and energy-saving lamp technology, in the discussion of century power experts online has come to an end, the technology has been fully affirmed and highly appraised by a scientist and inventor in the national achievements of science and Technology Forum, and as the first sign of responsibility ", can also go to Nanjing Mao Electrical Control Institute of technology website to view more detailed information (including news content, technical debates summary, test waveform picture and video etc.). The breakthrough of the contactless electromagnetic pressure regulating technology can correct the incorrect conclusion of the high pressure sodium lamp experiment.

We see in the Fujian freeway street lamp energy-saving technology seminar, energy-saving products, some companies use the United States, Japan technology is using AC contactor control shift, the response speed of action contactor is not fast enough, the impact of current exists in the inductive load shifting is often caused by the contact welding phenomenon, the contactor can not be divided broken, reduces the reliability and service life of the product. Therefore, it is necessary to carry out regular maintenance and replacement of the operation, increase operating costs. In addition, the use of AC contactor shift voltage adjustment of energy-efficient lighting products for high intensity gas discharge lamp (HID lamp) load usually appear easy to extinguish the lamp, easy to damage and other issues. The reason is that the HID lamp current is not led to a change in the voltage shift, there may even produce impulse current and transient voltage or voltage drop, easy to cause the HID lights or re lit HID lights, accelerated aging, shorten the service life.

We are in the city of Shanghai City Street Management Research Institute heard some of the company's street lighting energy-saving equipment using sodium lamp to do the test