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Inductive ballast, a noun unfamiliar industry term.
Weicheng Electronics, the lighting industry knows that it may have little, but it is well known in the capacitor industry. Almost all of them in the capacitor industry know that they have more than 40 years of experience and technology in capacitors.
By chance, the inspiration of the inspiration, they turned their attention to the lighting industry to develop a new generation of ring-shaped magnetic ballasts.
Weicheng Electronics is not a pioneer in magnetic ballasts, but it is definitely an innovator of magnetic ballasts.
Since the promotion of green lighting projects in China, energy-saving green lighting products have emerged one after another. In the past two years, energy-saving magnetic ballasts are comparable to electronic ballasts and are developing rapidly. Among them, energy-saving ring-shaped magnetic ballasts are mainly used. The toroidal magnetic ballast is a new type of energy-saving magnetic ballast. The silicon steel sheet is wound into a ring-shaped iron core, and the corresponding slot is opened on the iron core and the corresponding number of enameled wires are wound around the ring core. An inductive ballast. From the current ring-shaped inductor ballast products on the market, there are two main categories: one is a ring-shaped magnetic ballast for low-power fluorescent lamps; the other is a toroidal magnetic ballast for high-intensity gas discharge. . The most prominent features of the toroidal inductor ballast can be summarized as follows: First, energy saving, safe and reliable; Second, suitable for national conditions. The ring-shaped magnetic ballast is also concerned by experts and scholars for its outstanding energy-saving and practicality. It is considered to be a new generation of traditional magnetic ballasts with good development prospects.
Weicheng Electronics was inspired by these and started research on a new generation of toroidal magnetic ballasts under the leadership of its own strong R&D team.
In this regard, Aladdin Lighting Network exclusive interview with Wei Cheng Electronics Chairman and General Manager Mr. Wei Weiwen.
Responding to the national energy conservation and emission reduction call
Aladdin Lighting Network: Can you briefly introduce the original intention of developing a new generation of toroidal inductor ballasts?
Wei Weiwen: We have always been a capacitor, and have been doing it for forty years. It is also famous in the industry. Entering the lighting industry can be said to be accidental. Ring-shaped magnetic ballasts are highly regarded and respected by many experts for their outstanding energy efficiency. The development of this product is also a response to the national energy conservation and emission reduction call, can contribute to the national energy conservation and emission reduction is also what I have been pursuing. We are not the first manufacturer to manufacture a toroidal inductor ballast. Many experts and companies have been concerned before. Based on the research and development of our predecessors, our R&D team has worked hard to develop a new generation of toroidal magnetic ballasts. We all know that the ballast is a bridge between the light source and the power supply system. It produces a high-voltage light-emitting tube. After the light tube is ignited, it acts as a ballast to make the lamp work normally and stably.
The main objectives of Article 11 of the Eleventh Five-Year Plan are that high-intensity gas discharge lamps should be equipped with energy-saving magnetic ballasts. Article 9 stipulates that the energy efficiency factor (BEF) of the high-pressure sodium lamp ballast energy efficiency index meets or exceeds the GB19574-2004 standard, and the initiative meets or exceeds the energy-saving evaluation value GB19574-2004 standard. Article 10 stipulates strict implementation of the road lighting power density value standard, and the annual urban lighting power saving target reaches 5%. It is necessary to prevent the pursuit of energy saving at the expense of lighting effects. Article 14 stipulates that high-pressure sodium lamps should be used for expressways, trunk roads, secondary trunk roads and branch roads, and high-pressure sodium lamps should be used for motor vehicles and pedestrian mixed traffic roads in residential areas. Our product is also in strict accordance with the national 11th Five-Year Outline and strictly meets the national energy-saving standards. China HID Energy-saving Lighting Technology R&D Expert Group also believes that Weicheng Electronics' new generation of ring ballast is also the only energy-efficient energy-saving test that has passed the national energy-saving test. The ballast, which has completely independent intellectual property rights in the world. This brings us the most stable, efficient and economical comprehensive energy-saving benefits. Weicheng Electronics' energy-saving ballasts can fully meet the goals of the 11th Five-Year Energy Saving and Emission Reduction National Policy in the field of outdoor lighting. At present, our product will get the national energy-saving certification in May this year. The ring-shaped magnetic ballast we studied will be launched with sodium lamp and metal halide lamp, and applied and developed in the field of road lighting.
Analysis of current status of magnetic ballasts
Aladdin Lighting Network: Can you briefly analyze some of the current status of magnetic ballasts?
Wei Weiwen: We can look at a set of circuit diagrams first:
It can be seen from this set of diagrams that the loss of the ballast accounts for the main loss of the circuit, and it is also the problem that the street lamp needs to solve most.
The current inductance ballast itself has a relatively large loss. Due to different types of models, its own loss accounts for 15-30% of the lamp power. The power loss ratio of the small town is higher. Both theory and experiment prove that: The self-loss of the inductive ballast can improve the utilization of electric energy and achieve energy saving. Looking at the current situation of traditional ballasts in China:
1. The design method of the traditional ballast is not the most reasonable form of magnetic circuit structure.
2. The assembly process is loose due to the loose core structure and high duty factor, which increases the leakage flux and increases its energy consumption.
3. Due to market factors, the production of ballasts is in a dilemma. If high-grade silicon steel sheets are used, the cost is extremely high; if low-grade silicon steel sheets are used, it is impossible to achieve energy-saving purposes. Therefore, reducing the power loss of the inductive ballast is one of the main problems that should be solved in the green lighting process.
Since the promotion of green lighting projects in China, energy-saving green lighting products have emerged one after another. In the past two years, energy-saving magnetic ballasts are comparable to electronic ballasts and are developing rapidly. Among them, energy-saving ring-shaped magnetic ballasts are mainly used. The toroidal inductance ballast is a new type of energy-saving magnetic ballast, and it is also concerned by experts and scholars for its outstanding energy-saving and practicality. It is considered to be a new generation of traditional magnetic ballasts. Has a good development prospects.
I have been committed to the development of energy-saving business. As the company's leadership, I hope that the company will develop in this direction.
Analysis of working principle of a new generation of toroidal inductance ballast
Aladdin Lighting Network: Please introduce the working principle of Weicheng's new generation of ring-shaped magnetic ballasts?
Qi Weiwen: Traditional magnetic ballasts are usually made of E-shaped silicon steel sheets, which are laminated into iron cores and wrapped around them to form an enameled wire package. Because the E-shaped silicon steel sheet works unevenly in the plane of the iron piece, the outer ring is sparse and the inner ring is dense. The density at the inner corner of the 90 is the highest, and the magnetic flux density at the four outer corners is small. The E-shaped silicon steel sheet is limited by its own mechanical properties, and the magnetic flux density cannot be made high. Therefore, in order to reduce the eddy current loss of the E-shaped silicon steel sheet, the thickness of the sheet is often made thin, and each layer of silicon steel sheet is insulated. In this way, the space factor of the iron core is increased, and the cross-sectional area of ​​the iron core needs to be increased to compensate, and the circumference of each enameled wire is correspondingly increased. Undoubtedly, in addition to increasing the material loss of the silicon-silicon steel sheet and the enameled wire, the ballast volume and The weight is increased, and in addition, the copper loss and iron loss of the ballast itself are increased, that is, the power loss thereof is increased. Therefore, the ordinary E-shaped iron core ballast is large in volume, heavy in weight, high in internal resistance of the coil and low in work efficiency. At present, the most commonly used low-efficiency magnetic ballast for high-pressure sodium lamps in road lighting is this.
The annular ballast comprises a toroidal core and a winding wound along the toroidal core, the winding segments being evenly distributed along the toroidal core, and the adjacent two windings are connected end to end. The toroidal core is composed of two semicircular annular silicon steel lamination stacks, and the two laminations are snap-connected. Since the windings are evenly distributed along the toroidal core in a segmented manner, that is, after winding the required number of layers, the next winding is sequentially wound, so that the voltage difference between the layers of the windings and between the segments and the windings of the windings is reduced. It can effectively avoid winding breakdown damage caused by voltage fluctuations, and can also effectively reduce magnetic loss. Because the magnetic flux leakage gap is fixed, the ballast has no noise, stable working performance, and prolongs the life of the bulb; the laminated core is simple to form, easy to stack and wind, and does not require heat treatment, which simplifies the production process and reduces the product cost. . Compared with electronic ballasts and traditional ballasts, the energy saving effect is remarkable and the service life is extended.
Let's take a look at the comparison data of energy-saving ring-shaped inductor street lamps and ordinary inductor street lamps (400W sodium lamps):
Through the display of working principles and analysis of market data, it is not difficult to see that compared with traditional ballasts, Weicheng's new generation of ring-shaped magnetic ballasts has significant energy-saving effect and longer service life.
A new generation of ring inductor ballasts and electronic ballasts PK
Aladdin Lighting Network: Generally, electronic ballasts have more advantages than magnetic ballasts. Can you say that Weicheng's new generation of ring-shaped magnetic ballasts has some advantages over electronic ballasts?
Yan Weiwen: The point you said is correct. Electronic ballasts are close to ring-shaped magnetic ballasts in terms of energy saving, but the biggest advantage of our products is that they are more environmentally friendly and have a longer service life than electronic ballasts. Use under any environment.
A new generation of ring-shaped magnetic ballasts mainly has the following technical advantages and features:
Environmental protection and energy saving Relative to electronic ballasts, our products have high recycling value and no pollution.
Efficacy tolerance - the highest temperature resistance level of 220 degrees can be used normally.
The higher the power factor of the high power factor, the lower the line loss. The power factor is at 0.95, which exceeds the traditional ballast power factor. The power factor of the internationally renowned brands is only 0.85.
The temperature rise of ultra-low temperature rise of 400W will not exceed 55 degrees; the ballast can still touch the surface of the ballast by hand for three consecutive months of energization, thus prolonging the life of the light source, capacitor and trigger by 23 times and fully reducing the electric energy. Converted into heat energy consumption.
The low starting current is only 75% of the starting current of the same power luminaire, which is 5% 10% lower than the national standard;
Ultra-high stability, the ballast is the most stable energy-saving magnetic ballast in the world; 242V destructive voltage is normal for three consecutive months; the internationally renowned brand ballast 242V is energized for 3 hours, fully adapted to China The actual state of application of the regional voltage.
Electronic ballasts are electronic products that are fast-changing and can be worn out in a few years. Inductive ballasts use silicon steel sheets, copper and other materials. They are low-carbon products with a life span of 50 years, and are recyclable and environmentally friendly. Our products are currently available in HID, especially sodium lamps and metal halide lamps, in the direction of 70W-1000W. And we are cheaper than electronic ballasts, and in the same kind of magnetic ballasts, the market price is only about 20%.
Now LED is very hot, LED has become the object of the industry with its many advantages. Compared with LEDs, sodium lamps and metal halide lamps using our new generation of ring-shaped inductor ballasts also have some advantages that LEDs can't match. LEDs currently use streetlights, which have poor fogging performance, while sodium lamps using ring-shaped magnetic ballasts are better than LEDs. LED light decays faster and ages easily with increasing temperature, while inductive ballasts are not affected by temperature. Studies have also shown that too much LED viewing has a greater impact on the human eye.
In this regard, we can look at a set of analysis tables for energy-saving markets (where Weicheng's new generation of magnetic ballasts belong to the eleventh-five green energy-saving ballast category):
The new generation of ring-shaped magnetic ballasts once again verified the concept of energy saving and environmental protection, and met the requirements of national energy conservation and emission reduction.
In 2010, it will increase the promotion and promotion of the energy-saving concept of magnetic ballasts.
Aladdin Lighting Network: Your company is mainly engaged in capacitor products. Can you talk about how to promote a new generation of magnetic ballasts after entering the lighting industry?
Yan Weiwen: This product will get the national energy-saving certification in May of this year, and we will consider the whole lamp to launch sodium lamp and metal halide lamp, which will be mainly used in the field of road lighting. Since the development of this product, we have been doing some promotion. After we get the certification, we will gradually promote it. We have already signed up for the Guangzhou International Lighting Exhibition in June this year, as well as the Hannover Exhibition in Germany, Hong Kong. We are all planning to participate in the lighting exhibition, and then increase our efforts and publicity in some well-known media.
After editing:
If you are an electrical engineer, lighting designer, engineering manager or user, what kind of products do you really need when choosing a lighting product? Everyone wants to choose a green lighting product that is cheap and good. Under the premise of lighting, environmental protection and green in the lighting industry, many energy-saving and environmentally-friendly products are out of the market, so many people cannot choose. Aladdin Lighting Network reminds you to choose your energy-saving lighting products, please polish your bright eyes, so that you can choose only the right ones. 