A low-voltage electrical appliance is a component or device that can be manually or automatically switched on and off a circuit according to external signals and requirements to realize the switch, control, protection, detection, transformation and adjustment of the circuit or non-electric object. The development of low-voltage electrical appliances depends on the development of the economy and the needs of the development of modern industrial automation, as well as the research and application of new technologies, new processes and new materials. In terms of worldwide applications, low-voltage appliances are currently developing in the direction of high performance, high reliability, miniaturization, modularization, combination and universality of parts.
communicationability
With the development and application of computer network, the low-voltage electrical appliances controlled by computer network are required to communicate with the central control computer. Communication low-voltage appliances will become one of the important development directions of low-voltage appliances in the future. In order to realize the connection between low-voltage electrical components and computer networks, the following three schemes are generally used. One is to develop new interface appliances that connect the network to traditional low-voltage electrical components. The other is to derive or add computer network interface functions on traditional products. The third is to directly develop new electrical appliances with computer interfaces and communication functions.
intelligentize
In order to realize the two-way communication between low-voltage electrical appliances and the central control computer, low-voltage electrical appliances must be developed into electronic and mechatronics, and some electrical appliances are required to have intelligent functions. At present, the development of intelligent electrical appliances is mainly carried out on type circuit breakers, plastic-case circuit breakers, motor control, protectors and other products. The main feature of the intelligent flower circuit breaker is that it is equipped with an intelligent trip device. The main feature of the intelligent AC contactor and starter is that it is equipped with an intelligent point system, and its control loop includes a voltage detection circuit, a suction signal generation circuit and a holding signal generation circuit. With the development of science and technology, more and more intelligent low-voltage machines begin to appear in large factories.
High performance, energy saving, miniaturization
In addition to improving its main technical performance, the high performance of new low-voltage electrical appliances will also focus on the pursuit of comprehensive technical and economic indicators, such as low-voltage circuit breakers, plastic-case circuit breakers in addition to improving the short-circuit segment capacity, will also pay special attention to the reduction of the flashover distance. At the same time, it is required to miniaturize, which is also very important for the development of a new generation of compact low-voltage complete equipment. For AC contactors, it is no longer one-sided pursuit of the improvement of electromechanical life, but the focus of research on product function combination and derivation, breaking reliability, action reliability, contact reliability and energy saving.
Prospect analysis:
In the future, wire and cable and low-voltage electrical appliances will develop together under the promotion of national policies and market environment.
First, with the sustained and rapid growth of China's economy, providing a huge market space for cable products, the strong temptation of the Chinese market, making the world focus on the Chinese market, in the short decades of reform and opening up, the huge production capacity formed by China's cable manufacturing industry makes the world sit up and take notice.
Second, in the context of the ambitious development goals proposed in the 12th Five-Year Plan outline and the sustained macroeconomic growth, fixed asset investment, industrial production and overall consumption, especially the rapid growth of urban population, will inevitably drive the growth of power generation and electricity consumption. Therefore, the future market development space of low-voltage electrical appliances will continue to expand.