1. What is a contactless silicon controlled switch?
The advantages of contactless switch in electromagnetic compatibility, reliability and safety are incomparable to contact switch. The contactless switch is controlled by silicon controlled rectifier, and it is turned on and off inside the PN junction without spark, which makes up for the shortage of spark when the contact switch is combined and avoids the misoperation caused by spark caused by excessive current or air breakdown in the high voltage circuit. The contactless switch also has good high voltage resistance. For example, when some large motors start, the starting current is too large (basically equivalent to short-circuit current) because of the great inertia of the rotor from standstill to rotation, but when they stop, the inertia will continue to run, resulting in high voltage. Contactless switches can be applied here.
Second, the manufacturer recommended
1. Henan Chen Hao Electric Co., Ltd. is located in Xinxiang City, an important city north of the Yellow River, the hinterland of Taihang and the core area of Central Plains urban agglomeration; Just across the river from Zhengzhou, the provincial capital, and Kaifeng, the ancient capital, it is the economic, cultural and transportation center of northern Henan, a national transportation hub city, and only 50 minutes' drive from Xinzheng International Airport, with very convenient transportation.
Since its establishment, the company has been based on respect for science, love for career and strict attitude towards work; Combining scientific theory with practice, through unremitting efforts, we have developed a series of high-precision electrical products such as high and low-voltage reactive power compensation controllers, smart capacitors and compound switches. Our products include remote power distribution monitoring and monitoring automation terminals.
2. Yueqing Xifan Electric Co., Ltd. is a professional manufacturer of various high and low voltage reactors, series reactors, filter reactors, single/three-phase incoming reactors, three-phase output reactors, DC filter reactors, current limiting reactors, starting reactors, core-adjusting reactors, transformers, reactive power compensation controllers, contactors, intelligent compound switches and similar products. Xifan electric appliance takes honest service as its purpose.
3. Zhejiang Liu Jing Rectifier Co., Ltd. is an enterprise specializing in the production and research of power semiconductor devices and anti-reflection diodes. It is a professional manufacturer of photovoltaic anti-reflective diodes in China. Since its establishment, the enterprise has always adhered to the concept of honest management and sustainable management, and has always focused on rectifier, photovoltaic anti-reflective diode and power semiconductor industries. After years of development, the enterprise has now developed into a comprehensive enterprise integrating product research and development, manufacturing, commerce, import and export of goods technology and online sales. ? Enterprises produce in strict accordance with national standards and implement CQC? Has the т12008standard been passed? IQNET？ CQC？ ISO900 1:2008？ CE？ SGS？ ROHS？ TUV certification, master the core technology of photovoltaic anti-reflective diode, and have national patents. The enterprise mainly produces a full range of anti-reflection diode products, such as photovoltaic anti-reflection diode, anti-reflection diode for junction box, anti-reflection diode for DC cabinet, anti-reflection diode for inverter, anti-reflection diode for solar energy, single-channel photovoltaic anti-reflection diode module, dual-channel negative photovoltaic anti-reflection diode module and dual-channel positive anti-reflection diode module, and provides design services for junction box, DC cabinet and inverter anti-reflection diode for solar energy customers. Ordinary rectifiers, fast rectifiers, ordinary thyristors, bidirectional thyristors, fast thyristors, high-frequency thyristors, bridge rectifiers, power semiconductor modules, Schottky modules, ultra-fast recovery diodes, special modules for welding machines, solid-state relays, solid-state voltage regulators, profile radiators and so on.
The examples recommended above not only have the basic knowledge of contactless silicon controlled switches, but also the recommendations and suggestions of manufacturers. Therefore, from the perspective of mature technology scale, it can help us to screen reliable contactless SCR switches. Generally speaking, they are special switch products with outstanding performance in electromagnetic compatibility, reliability and safety. They will not cause potential safety hazards due to excessive current, and they are available in a variety of sizes and specifications.