Development status and future trend of low voltage electrical apparatus industry in China

Classification：Company   2018-05-02 21:33:01

After more than 50 years of development, China's low-voltage electrical appliance industry has formed a complete industrial system. Its products are widely used and have huge market potential. By 2015, the power supply reliability of the agricultural network reached 99.7%, the qualified rate of the integrated voltage reached 98.5%, the average line loss rate reached 6.2%. The transformation of the agricultural network led to the huge demand for the low-voltage electrical appliances in the distribution side. 　　

Current situation of low voltage electrical appliance market in China

After more than 50 years of development, China's low-voltage electrical appliance industry has formed a complete industrial system. Its products are widely used and have huge market potential. The statistics show that there are about 1000 series of domestic low-voltage electrical appliances, with a output value of 20 billion yuan, and more than 2000 production enterprises with larger scale, mainly in Guangdong, Zhejiang and Shanghai, and other provinces and cities along the coast. At present, low voltage electrical appliances are in the first generation to the third generation, and the fourth generation products are still under development.

With the improvement of the domestic power construction level and the continuous development of low voltage electrical production technology, the new generation of low-voltage electrical appliances, which are mainly characterized by intelligence and communication, will become high grade products. At present, domestic medium and low-grade low voltage electrical appliances have basically occupied most of the domestic market, but the domestic market share of most of the products is still very low in addition to some products, and the demand for high grade low voltage electrical appliances in the domestic market is still dependent on import. 　　

At present, the market of low voltage electrical appliances is gradually expanding with the construction of power facilities. In recent years, the demand for low voltage electrical appliances at home and abroad is generally in a state of expansion, and the market prospect is very considerable. However, domestic low-voltage electrical appliance enterprises generally lack sufficient independent innovation capability and lack of high-end market competitiveness. With price war and channel war becoming more and more intense, the environment of domestic low voltage appliance industry is becoming worse and worse.

In fact, China's low voltage electrical industry technology and production level is relatively weak, most of the enterprises are small in size, the resources are relatively scattered in various aspects, and are still in the middle and low end of the repeated research and development and mutual imitation stage. In addition, the strong invasion of large foreign enterprises, which belong to the low-end market of domestic enterprises, is constantly being eaten up, and the industry competition is becoming increasingly fierce. It is gratifying that many national brands have begun to enhance their awareness of suffering. In addition to overcoming the increase in raw materials and labor costs, financing difficulties, reducing the cost of product management, increasing the upgrading and upgrading of equipment technology, strengthening cost management and cost control, it emphasizes the design of product research and development, and puts the emphasis on design to an unprecedented high. Degree.

In the increasingly competitive low-voltage electrical appliance industry, the appeal for design to enhance brand value and design to get rid of the low end problems is increasingly strong. And some forward-looking enterprises are brave enough to take a solid step, and enhance the competitiveness of brands and products through cooperation with well-known design companies. Among them, garland has its own mature methods and processes in brand strategy, product planning and product design, and has long been devoted to the brand upgrading and product innovation of low voltage electrical enterprises. With the people's electrical appliances, CHINT, noya, Tian Zheng, Long March and other brands to establish a good long-term relationship of cooperation; it is worth mentioning that the strong alliance of nokk and garland is more widely praised by the industry people, and become the object of many brands to imitate.

China's low voltage electrical appliances have formed a certain industrial scale, looking to the future, to design to improve the brand value and competitiveness will become the only way for the upgrading and transformation of low voltage electrical appliances enterprises. By giving full play to the great potential of design, it will hopefully improve the current situation of low-voltage electrical appliances industry, and push the industry towards a high end goal.

Throughout the domestic low-voltage electrical industry, various factors that impede the development of the industry have become increasingly prominent: overcapacity, lack of funds, lack of core technology, low end products, strong impact of foreign brands, and the rising of raw material costs, labor costs and financial costs, and the escalation of vicious competition between prices and channels. The overall profit growth rate of the industry has been declining, and the development of most low-voltage electrical appliances enterprises is beginning to fall into a bottleneck.

Where is the breakthrough of low voltage electrical appliances industry? Facing the dismal situation of the industry, many enterprises have changed, in addition to the traditional breakthrough mode, more attention to the overall design of brands and products, to design a breakthrough has become a consensus of many low voltage electrical enterprises.

It is worth mentioning that the strong cooperation between domestic design leader enterprise and the low voltage electrical appliances brand Noah has made a good business.　　

Seven characteristics of low voltage electrical appliance industry

The domestic low voltage electrical appliance manufacturing enterprises are small in scale and excessive in quantity. Over 90% of enterprises are in duplication of medium and low grade products, and the three generation products coexist. According to the trend of national policies, the structure of low voltage electrical appliances needs further adjustment in the next few years. Products with backward technology, large volume, high energy consumption and environmental pollution will be eliminated.

A number of famous low-voltage electrical appliances manufacturers abroad have launched a new generation of products, including Schneider Inc MT series, SIEMENS 3WL series, ABB company E series, GE company M-PACT series, Kama company Magnum series, plastic shell circuit breakers with Schneider Inc NS series, SIEMENS company 3VL series, ABB company T. Max series, GE company Recordplus series, Moeller company NZM series, Kama company G series, Mitsubishi Co WS series. In addition to the features of high performance, electronic, intelligent, modular, modular, miniaturized, the new generation of products also features such features as communication, high reliability, good maintenance performance, and environmental protection requirements. In particular, the new generation of products can connect with the fieldbus system to realize the networking of the system and make the function of low-voltage electrical apparatus product take a qualitative leap.

High performance. The rated short circuit breaking capacity and the rated short-time tolerance current are further improved, and Icu = Ics, such as the Schneider Inc's MT series products, its operation short circuit breaking and limit short circuit breaking ability is up to 150kA. 　　

High reliability. In addition to requiring a higher performance index, the product can also be used without lowering the capacity. It can be used for full capacity for a long time without overheating, so as to achieve safe operation.

Electronization. Modern enterprises have adopted the PC control system instead of the system composed of electrical and mechanical components, which is the mainstream of the mechanical electrical control system. The system requires the electrical products with high reliability and high anti-interference, and the contact can be reliably connected to low voltage and weak current, and the arc can not disturb the normal operation of electronic circuit when the contact is disconnected.

Intelligentized. With the appearance of the special integrated circuit and the high performance microprocessor, the circuit breaker realizes the intelligentization of the tripping device, which makes the protection function of the circuit breaker greatly strengthened, and can realize the functions of long time delay of overload, short circuit short delay, short circuit instantaneous, grounding, under voltage protection and so on, and can also display voltage, current, frequency, and frequency on the circuit breaker. The system operation parameters such as active power, reactive power and power factor can avoid misoperation under the influence of high-order harmonics.

Field bus technology. The new generation of low-voltage electrical appliances can be communicated and networked, can connect with a variety of open field buses, carry out two-way communication, and realize remote control, telecontrol, telemetry, telecontrol functions of electrical appliances. The application of fieldbus technology can not only monitor the distribution quality, but also reduce the loss. In addition, the field bus technology can realize regional interlocking of multiple circuit breakers in the same area, realize the automation of distribution protection and further improve the reliability of the distribution system. The buses used in the industrial field bus are Profibus, Modbus, DeviceNet, etc. Modbus and Profibus have great influence.