Xi'an Langpu Electronic Technology Co., Ltd. is a high-tech enterprise established in 2004. Two years before the company was founded, four young people who were interested in making a difference in China's road lighting industry, after two years of research and development in a difficult environment without funding, finally developed successfully: for green road lighting, The environmentally friendly and energy-saving ballast used in Europe-------NG250W-05 high-pressure sodium lamp electronic ballast, which has the characteristics of small size, light weight, high efficiency and energy saving, and strong control function.
The new high-pressure sodium lamp electronic ballast adopts advanced technologies and materials such as IC circuits and high-frequency magnetic components in modern microelectronic technology to carry out the best performance and high reliability design, energy saving and environmental protection. Its power factor is greater than 0.98, the output power is constant, the illumination is constant, and the electro-optical conversion efficiency is improved. EMI has low electromagnetic interference, excellent performance and high performance and price ratio.
The project's products are carefully designed with advanced foreign technology and have superior characteristics that traditional inductive ballasts cannot match. The performance parameters of the two products are compared as follows:
Project electronic ballast inductance ballast
1. Rated input voltage 220V/50Hz 220V/50Hz
2. Applicable voltage range 160V~265V/50Hz 198V~230V/50Hz
3. Power variation (%) 160V~265V: ±1.5% 160V~260V: > 50%
4, power factor λ ≥ 0.98 0.65 (with capacitor compensation 0.8)
5, third harmonic ≤ 7% > 17%
6, starting current (A) ≤ 0.6 3.8 ~ 4.5
7, the efficiency of electro-optical conversion
8, noise (1 meter) / moderate amount
9, efficiency 95% 50~60%
10, the working current is about 1A about 3A
11, the lamp life of more than 3 years, the replacement rate of 87%
The characteristics of the electronic ballast can be seen from the above main technical performance tables:
1. High power factor: ≥0.98, the real best transmission of grid power, in addition to heat loss, almost 100% output to the load, reactive power only accounts for a few percent, which is its main energy-saving mechanism. When the power factor of the inductor ballast is 0.65, the active power only accounts for 65% of the input power, and the reactive power accounts for 76% of the input power.
When λ=0.85, the active power accounts for 85%, and the reactive power accounts for 52.6%;
When λ=0.995, the active power accounts for 99.5%, and the reactive power only accounts for 10%.
Electronic ballasts can maximize the use of grid power supply capacity, reduce grid losses, and the reactive power of the ballast ballast is too large, increasing the reactive load of the power plant and increasing the grid loss.
2. Constant power output: When the grid voltage changes from 160V to 265V, the output power of the ballast is basically constant, and the variation is less than 1.5%, that is, the power variation of the 250W high-pressure sodium lamp is less than 3.75W, so that the high-pressure sodium lamp is in the best condition and performance. Adapt to the changes in the power grid, the most effective to ensure the stability and balance of the illumination. On the contrary, the inductance ballast power variation of 27% (under constant current performance under high pressure sodium lamp) greatly affects the lighting effect and shortens the life of the high pressure sodium lamp.
3, low-voltage starting performance is excellent, to ensure that lighting is not affected by the power grid settings. Inductive ballasts can only be normally started and lit in the range of 90% to 105%.
4, ultra-wide voltage adaptation range: 160V ~ 265V, especially suitable for long distances such as highways and other power supply occasions.
5, no low frequency noise, reduce environmental noise.
6, electromagnetic interference is small.
7. Since the working frequency of the electronic ballast is about 30KHz~45KHz, the electro-optical conversion efficiency of the high-pressure sodium lamp is improved, and the electric energy is saved under the condition of the same illumination, and the service life of the lamp tube is prolonged.
8. High efficiency and energy saving: Take the 250W high pressure sodium lamp as an example. The total power of the magnetic ballast is 320W. Under the same illumination, the total power of the electronic ballast is only 220W. Using electronic ballasts saves 100W per lamp. If you work 10 hours a day, you can save 1 kWh of electricity. According to the electricity cost of about 0.50 yuan per year, you can save 182 yuan per year, and there is a reward factor of more than 0.9. %. Take Xi'an as an example. There are 30,000 high-pressure sodium lamps, which can save 11.05 million kWh annually and save electricity for 5.47 million yuan. The adoption of electronic ballasts not only achieves high economic benefits, but also has good social benefits. This is the intrinsic motivation of countries around the world to promote the application of electronic ballasts, and is the best way to achieve green lighting.
9. It has perfect abnormal state protection measures, and protects the ballast and other auxiliary equipment when the lamp or lead is abnormal.
10. The switching time and switching mode of the street lamp can be controlled by segmentation with the power carrier technology.
In the communication with Mr. Wei Weimin, the research and development background of this product, in the late 1990s, a world-renowned IC manufacturer (USA) launched a whole new set of solutions for lighting products, and designed and produced functions. Complete IC products. After years of market tempering, the quality of the product has been continuously improved, and its performance has been improved day by day. It has been widely used in lighting products such as energy-saving lamps and fluorescent lamps, and has been successfully applied to communication power sources, electric power sources, etc., with an annual output of 10 billion chips. Its excellent performance has won wide acclaim in the market.
In view of the fact that there is no reliable and complete high-pressure sodium lamp electronic ballast solution in China, the company's Chinese technology application organization recommended that Ramp will use the IC chipset for the development and development of high-pressure sodium lamp electronic ballasts. The corresponding technical support.
Thanks to the advanced core technology development platform, it has effectively guaranteed the technological advancement of the NG250W-05 high-pressure sodium lamp electronic ballast introduced by Rump, and got rid of the stagnation of similar products in this field, and completed the technical A breakthrough.
At present, the objective reason for the failure to start smoothly in the domestic high-pressure sodium lamp electronic ballast market for many years is mainly due to its poor working conditions. Due to many factors such as working environment, power grid quality, and lamp quality, electronic ballasts are difficult to break through in the field of high-power high-pressure sodium lamps in China. Based on the particularity of the domestic market, the company introduces CPU control technology by optimizing the circuit design, so that the product has accurate and complete detection and protection functions for various abnormal states.
It is worth mentioning that there are many domestic manufacturers of high-pressure sodium lamp tubes, the quality is uneven, and the consistency is poor, which poses a problem for the ballast. Since electronic ballasts usually operate at higher frequencies, conventional output power detection techniques are difficult to meet actual needs and are costly. After several years of efforts, Ramp Company has explored a practical power control model and combined with CPU detection technology to successfully solve the problem of discrete lamp, which has created conditions for its wide application in China.
The technical indicators reached by NG250W-05 are as follows:
Input voltage: 180V-265V AC
Input current: 0.35A (cold light start at 220V) 1.20A (full power operation at 220V)
Lamp working voltage: 85Vrms
Lamp working current: 3Arms
Operating frequency: 48KHz (typical)
Power factor: ≥0.98
Working efficiency: ≥95%
Total harmonic distortion: ≤10%
Working temperature: -25°C～
Fenghua Jade Motor Co., Ltd. , http://www.nscircuitbreaker.com