News

  • Must the low voltage disconnector lag behind the low voltage circuit breaker?

    Is there such a view that the disconnector is a low-level, and the circuit breaker is a high-level, where the disconnector is used, the circuit breaker can be used instead? This idea is debatable, but disconnectors and circuit breakers have their own applications. Low voltage circuit breaker is ...
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  • Yuye brand molded case circuit breaker selection elements

    According to the structure of the circuit breaker classification, there are universal type, plastic shell type, plastic case circuit breaker, which is suitable for rated voltage 690V, frequency 50/60Hz, rated current 16 to 1600A distribution system or as a transformer, motor, capacitor and other ...
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  • Selection and use of double power automatic transfer switch

    When the mains power and the generator power conversion, the particularity of the generator should be taken into account first. After the mains power is cut off, the generator will start automatically. The output of the power of the outgoing motor can only be achieved after the indicators of the ...
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  • The difference between leakage circuit breaker 1P+N and 2P

    1P+N leakage circuit breaker is: Monopole two wire, that is, a single piece of air switch, and a leakage protection module combined with the switch, the fire line, zero line together in and out of the combination switch, when the leakage occurs when the leakage module drives the air switch trip, ...
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  • Function and principle of ATS automatic converter for diesel generator set

    ATS is a double power automatic switch, the ATS automatic switch cabinet is mainly composed of control components and circuit breakers, can be manually or automatically controlled on and off power supply. The structure is simple and easy to operate, and the operator is easy to master the use meth...
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  • 2nd International Industrial and Energy Internet Innovation and Development Conference to open in July

    The 2nd International Industrial and Energy Internet Innovation and Development Conference will take place from July 9 to 10 in Wenzhou city, east China’s Zhejiang Province, according to a press conference held Thursday. The theme of this year’s conference is “Digital Energy, S...
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  • Application of Safety Distance of Arc and Waveform Distortion Resistance Test Bench for MCCB

    In recent years, with the in-depth construction of new infrastructure in China, the comprehensive transformation of 5G base stations, the wide use of power electronic equipment and the rapid development of photovoltaic power generation, the requirements for traditional low-voltage appliances are ...
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  • The first 145 kV environment-friendly vacuum circuit breaker in China was put into operation in Henan

    On June 3rd,2021, the first 145 kV environment-friendly vacuum circuit breaker (3150 amperes) in China was put into operation at 110 kV xiangyun substation of state grid henan electric power company. After the equipment is put into operation, it will effectively reduce the use of sulfur hexafluo...
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  • The importance and operation of dual power automatic switch

    Power failure I believe we all have experienced, power failure at home when the electrical equipment can not be used, such as in summer, the weather is so hot, if the electricity is stopped, without the help of air conditioning, we will be hot and sweating, this feeling is quite uncomfortable. Th...
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  • PLC overview and application field

    The company mainly produces AC contactor, mini circuit breaker, plastic enclosure circuit breaker, double power automatic switch, frame circuit breaker, vacuum circuit breaker and other products. Huatong takes everyone to understand the overview of PLC and the application field. Introduction Over...
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  • Modern information management technology

    China One Two Three Electric Co., Ltd. is a high-tech enterprise specializing in the research, development and manufacturing of double power automatic transfer switch, disconnecting switch and molded case circuit breaker. The company has a group of high-quality technical and management per...
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  • Development and trend of automatic transfer switch

    Automatic transfer switch in China has gone through four stages of development, are contactor type, circuit breaker type, load switch type and double throw type. The development: Contact type: This is the generation of China’s conversion switch. It consists of two AC contactors and m...
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