The danger of circuit leakage is very high if there is no protection, in which the leakage switch is used to prevent the occurrence of accidents caused by circuit leakage. The main principle of the leakage switch is to put two line resistors on the iron core, one is the main winding line resistor, one is the secondary winding line resistor, respectively, to play the role of input current and output current. Circuit normal output current and input current is the same, if a leakage occurs at both ends of the line resistance current is not the same, there will be inductance, which makes the circuit power off in time. Can play a very good role in protection.
Leakage switch brand list
1, MGM MGE? (the world's leading power distribution brand belonging to the Schneider Electric Group, international standards in the field of power distribution, the main developer of Schneider Electric (China) Investment Co. MERLAND was founded in 1920 and quickly gained international fame by introducing a revolutionary high-voltage circuit breaker to the market. Since then, M?rtsil?'s high-voltage and low-voltage innovations have continued to improve safety and comfort in power distribution.
2, Panasonic Panasonic? (in 1918 Japan, the world's top 500 enterprises, the world's brands, large multinational companies, one of the world's largest electronics manufacturers, Panasonic (China) Co. The founder is Mr. Konosuke Matsushita, who is known as the "God of Management". At the beginning, it was a small workshop consisting of three people, one of whom was the founder of Sanyo, Mr. Toshio Inoue. Through the efforts of several generations, the company has now become a world-renowned international integrated electronics technology conglomerate with business activities in countries around the world.
3, Chint CHINT? (founded in 1984, China's largest volume of low-voltage electrical production enterprises, China's well-known trademark, high-tech enterprises, Zhejiang Chint Electrical Appliances Co. Group, Great Wall Electrical Appliance Group)
Great Wall Electrical Appliance Group is a large-scale private enterprise with industrial electrical appliances as its leading business and involves in mining, energy, real estate, investment and other fields, the group was founded in 1988, and in 1995, the Great Wall Group was established in Zhejiang Province, and in 1997, it was promoted to be a national non-regional enterprise group. The trademark of Great Wall Electrical Group "CNC" is a well-known trademark in China. 2005, the group has total assets of 3.3 billion yuan, more than 8,000 employees, annual output value of more than 9 billion yuan, and its comprehensive strength is ranked 346th among the top 500 private enterprises in the country, 184th among the top 500 manufacturing enterprises in China, and 45th among the top 500 private enterprises in China.
5, Delixi? (China Famous Trademark, electrical industry leading enterprises, high-tech enterprises, influential brand, national enterprise technology center, China Delisi Holding Group Limited)
Delisi Electric Co. ---Ltd. is a large Sino-French joint venture established on November 16, 2007, located in Liu Shi Town, Yueqing City, Zhejiang Province, with a cumulative investment of nearly RMB 2 billion, covering an area of 240,000 square meters, with more than 10,000 employees, and is the largest joint venture in China's low-voltage electrical industry.
6, Schneider (with a brilliant history of more than 170 years, global energy efficiency management experts, specializing in power and automation management industry, Schneider Electric (China) Limited)
Schneider Electric Limited (Schneider? Electric? SA?) is one of the world's top 500 companies, ?established by the Schneider brothers in 1836. Today, it is headquartered in Luié, France. Schneider Electric is a global leader in energy efficiency management, providing total solutions for the energy and infrastructure, industrial, data center and network, building and residential markets in more than 100 countries,? which is a world leader in the markets of energy and infrastructure, industrial process control, building automation, and data centers and networks, and has strong market capabilities in residential applications.In fiscal 2012, Schneider's total global revenue reached 24 billion euros, and it employs more than 140,000 people in more than 100 countries.
7, the people PEOPLE? (China Famous Trademark, China's 500 most valuable brands, the leading brand in the field of domestic industrial electrical appliances, large-scale diversified enterprise group, People's Electrical Appliances Group Co.)
8, ABB (merged by the two centuries-old international enterprises, a leader in the field of power and automation technology, the world's top 500 multinational corporations,)
8, ABB (China) (by two hundred-year-old international enterprises merged, power and automation technology field, global top 500 multinational corporations. ABB (China) Limited)
ABB Group is ranked among the world's top 500 companies, the group is headquartered in Zurich, Switzerland. ABB by the history of more than 100 years of the two international enterprises Sweden's ASEA (ASEA) and Switzerland's Brown Boveri company (BBC? Brown? Boveri) merged in 1988. Founded in 1883 and 1891, respectively, ABB is a leader in power and automation technologies that help power, utility and industrial customers improve their performance while reducing negative environmental impacts.The ABB Group operates in more than 100 countries, employs 130,000 people, and had sales of $32 billion in 2010.
The ABB Group is a leading manufacturer of power and automation technologies, and is the largest supplier of power and automation solutions in the world.
Consolidated above can be seen in our usual life leakage switch is very important, it can not only effectively control the circuit, but also to prevent leakage accidents, greatly improving the safety of our electricity. Leakage switch wiring is also very special, generally using a three-phase four-wire system, for example, three firewire (yellow, green, red), a zero line (blue), the voltage between the three firewire is 380 volts. The voltage between the fire wire and the zero line is 220V, the wiring must be in accordance with the left-zero right fire, the upper inlet and lower outlet wiring principles, so as to play a protective role.