As the first and second generations of smart electrical products gradually withdraw from the mainstream market due to performance reasons, the new generation of products featuring intelligent features will accelerate to become the market leader. At this stage, due to technical limitations, the low-voltage electrical appliance industry will also strengthen the research of basic smart technologies in the near future.
A low-voltage electrical appliance is a component or device that can manually or automatically switch circuits on or off according to external signals and requirements to achieve switching, control, protection, detection, transformation, and adjustment of circuits or non-electrical objects. In recent years, the low-voltage electrical industry has seen unprecedented opportunities for development. It is estimated that the newly installed capacity will be about 21GW per year from 2001 to 2010. Calculating according to the experience and matching ratio, it requires 480,000 low voltage frame circuit breakers and 4.82 million molded case circuit breakers each year. In addition, the state encourages the export of electromechanical products and the export volume has steadily increased.
However, according to industry sources, "from the market situation, China's production of low-end low-voltage electrical appliances basically occupy the vast majority of the domestic market, but domestic high-end low-voltage electrical products in addition to individual products can be equally with foreign similar products, other domestic high-end low-voltage The domestic market share of electrical appliances is still very low.†In fact, the first and second generation low-voltage electrical products have lagged performance and low profits, and the third-generation products cannot meet the demand. The development of a new generation of low-voltage electrical products is an urgent task.
A new generation of low-voltage electrical intelligence is the first point
The next few years will be the main period of smart grid construction. Smart grids and complete sets of equipment, intelligent power distribution and control systems will usher in the golden period. However, in the process of smart grid construction, State Grid Co., Ltd. and design departments tend to favor foreign brands. Domestic monopoly industries also directly participate in the manufacture of low-voltage electrical appliances. In addition, the power grid is made up of many electrical appliances, and the power grid must be intelligent. It must first realize the intelligentization of electrical appliances. The intelligentization of low-voltage electrical appliances is the future development direction, but higher requirements are put forward for the integration of low-voltage electrical systems and the overall solution.
In this regard, the basis for the development of a new generation of products consists of three aspects: market demand, technological development trends (including industry standard development trends) and system development trends. Choosing new product projects in combination with these three aspects is the correct approach.
At present, the basic meaning of intelligent low-voltage electrical appliances mainly includes the following functions: complete protection and control functions, both electrical parameter measurement, external fault detection, alarm and switch internal fault self-diagnosis and alarm, system operation status monitoring, power usage management functions ( Or part of it). From the perspective of the current technical conditions, it is still necessary to strengthen the research of basic intelligent technologies.
1) What kind of intelligent functions should all types of low-voltage electrical appliances have under their low-voltage distribution and control systems? How to implement these functions
2) Research and development of intelligent low-voltage electrical standards; research on intelligent functional testing equipment and testing methods.
3) Research on the intelligent low-voltage electrical integration technology; When multiple intelligent appliances are integrated, the intelligent function of different low-voltage electrical appliances is discarded; the coordination and cooperation of multiple functions overlap.
4) Research on intelligent low-voltage electrical reliability (including EMC technology).
The emergence of new technologies in the future will accelerate the development of new-generation intelligent low-voltage electrical appliances featuring high performance, intelligence, high breaking, communication, miniaturization, modularization, and energy saving as the mainstream products of the market. Market share will also be further expanded.
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