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| Intelligent as low-voltage electrical development of a new direction |
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Raise the level of domestic electric power construction, and low-voltage electrical production technology continues to evolve, intelligent and can communicate the main features of the new generation of low-voltage electrical high-end products.
In recent years, low-voltage electrical industry continue its rapid development, market capacity and power to the development of low-voltage electrical industry is closely linked to the rapid development of the domestic power grid construction, a broad space for the development of low-voltage electrical industry.
Experts believe that China has become the largest producer of low-voltage electrical, and become a major exporter. High-end product development will continue to be the main direction for future industry. New power generation equipment corresponding distribution equipment, as well as existing power equipment replacement and maintenance needs in accordance with the "12th Five-Year" period, is expected to conventional circuit breaker, molded case circuit breaker, mini circuit breaker, AC contactor, thermal relays, earth leakage circuit breakers and other product demand will reach more than 200 million units.
Huge market potential
Low-voltage electrical industry in China after 50 years of development, has formed a complete industrial system and its products are widely used, huge market potential. The statistics show that about 1000 series of domestic low-voltage electrical products, the output value reached 20 billion yuan, with the production of enterprises above designated size of over 2000, mainly in the coastal provinces and cities in Guangdong, Zhejiang and Shanghai. At present, low voltage electrical products in the technological level of the first generation to third generation, fourth generation of product development is still under development.
Secretary-General of the China Electrical Equipment Industrial Association, the universal low-voltage electrical branch Yintian Wen said: "The current low-voltage electrical appliances manufacturing enterprises in China, the annual sales income and total assets of large enterprises in more than 500 million yuan less than 10, the vast majority are SMEs , resulting in lack of economies of scale and competitiveness, but also lead to economic resources too thin, the lack of efficiency. "
Raise the level of domestic electric power construction, and low-voltage electrical production technology continues to evolve, intelligent and can communicate the main features of the new generation of low-voltage electrical high-end products. At present, the domestic, the low-grade low-voltage electrical basically occupy the vast majority of domestic market, the domestic high-grade low-voltage electrical appliances in addition to individual products can be evenly divided with similar foreign products, most of the products of domestic market share is still low, the domestic market for high-grade low-voltage electrical demand is still dependent on imports.
Development was the seven characteristics
Small-scale domestic low-voltage electrical manufacturers, an excessive number of more than 90 percent of enterprises in the repeated production of end products, co-existence of three generations of products. Require further adjustment in accordance with national policy direction, the structure of the low-voltage electrical products in the next period of time. Technology behind the bulky, high energy consumption and environmental pollution will be eliminated.
Abroad a number of low-voltage electrical manufacturers have launched a new generation of products, including the framework of circuit breakers Schneider MT series, the Siemens 3WL series, ABB E-series, GE M-PACT series, Kama Company Magnum series; plastic The shell circuit breaker Schneider NS series, Siemens 3VL series, ABB company Tmax series, GE Recordplus series, Moeller company NZM series, Kama G Series Mitsubishi WS series. A new generation of products in addition to have the characteristics of high-performance, electronic, intelligent, modular, combination, miniaturization, can communicate, high reliability, maintenance performance, in line with environmental requirements and other features. In particular, a new generation of products can be connected to the fieldbus system, the system network, a qualitative leap in the low-voltage electrical products.
High performance. Rated short-circuit breaking capacity and rated short time withstand current to further improve and achieve Icu = Ics, such as Schneider, MT series, the short-circuit breaking and limit short-circuit breaking capacity up to 150kA.
High reliability. In addition to products requiring high performance, but also to do without derating to use, can be full-capacity long-term use without overheating, in order to achieve safe operation.
Electronically. The modern enterprise has been using PC control system instead of a system composed by the electrical - mechanical components, has been the mainstream of the mechanical and electrical control systems. The system requirements for electrical products with high reliability, high noise immunity, and also requires the contacts can be reliably connected to the normal operation of low voltage and weak current, the contact is open when the arc does not interfere with electronic circuits.
Intelligent. With the advent of ASIC and high-performance microprocessors, circuit breakers to achieve the release of intelligent circuit breaker protection is greatly enhanced and can be achieved are set out time-lapse, short circuit short time delay, short-circuit transient ground, undervoltage protection function can also be displayed on the circuit breaker system operating parameters of voltage, current, frequency, active power, reactive power, power factor, etc., and to avoid higher harmonics under the influence of malfunction.
Fieldbus technology. A new generation of low-voltage electrical products enable communications, networking, a variety of open fieldbus connection, two-way communication, remote control of electrical products, remote communication, telemetry, remote adjustment function. The application of fieldbus technology, not only to monitor the quality of distribution loss reduction. Moreover, the fieldbus technology can achieve more than one circuit breaker in the same regional grid regional chain to achieve the automation of power distribution protection, to further improve the reliability of distribution systems. The field of industrial field bus used bus, Profibus, Modbus, DeviceNet, Modbus and Profibus.
Modular, combined. Such as ABB launch of the Tmax series, thermal-magnetic, electronic, electronic communication style release, can be used interchangeably. Annex all of the modular structure, and do not need to open the lid can be installed. Into different functional modules according to different needs of portfolio modular combinations, the direction of development of today's low-voltage electrical industry. Auxiliary contact units installed in the body of the contactor, the delay components can be adapted to the requirements of different occasions, since the lock components, interfaces, components, mechanical chain components and surge voltage components, thereby expanding the product scope of application, simplifying the production process, and user-friendly installation, use and maintenance. At the same time, will further improve product reliability and product quality.
The use of green materials. Product materials selection, manufacturing process and the use of the process does not pollute the environment, in line with EU environmental directives. |
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Time：2012-03-01 View：2027 |
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