• <kbd id="kdace"></kbd>
  • 您好,歡迎來到濟南通宇恒成自動化工程有限公司網站!


    當前位置: 首頁- 新聞中心 > 客戶見證


    發布時間:2021-10-18 來源:http://www.apartrz.cn/ 瀏覽量:

    1、 Low voltage fuse
    Low voltage fuse is a simple circuit protection appliance. Its principle is that when the current flowing through the fuse reaches or exceeds the fixed value for a certain time, its own melt melts and cuts off the circuit. Its action principle is simple and easy to install. It is generally not used alone. It is mainly used to cooperate with other electrical appliances.
    2、 Low voltage circuit breaker
    Low voltage circuit breaker is also called automatic switch, commonly known as air switch. When the automatic control or protection control operation is carried out, the circuit breaker can carry out the opening or connecting operation of the circuit under the control of the comprehensive protection device. The circuit breaker can not only make and break the normal load current, but also bear the short-circuit current for a certain time, and can break the short-circuit current and cut off the faulty lines and equipment.
    3、 The difference between the two
    There is no obvious difference between circuit breaker and fuse, and there is no great difference in their application. They are all equipment mainly used for open circuit protection. However, the fuse belongs to disposable equipment when in use. After use, it needs to be replaced and treated by staff in time. It is a cheap and widely used control equipment. The circuit breaker has the advantages of electric remote control function, complete protection function, convenient adjustment and continuous use in case of fault disconnection.
    4、 Option
    (1) For general equipment, fuses should be selected for protective appliances in general distribution cabinets. Because the fuse has good current limiting characteristics, low price and easy to meet the selectivity requirements. However, when there are few power supply and consumption equipment and the impact of accidental power failure is not too great, non selective circuit breaker can also be selected.
    (2) Non selective circuit breaker or leakage protector is usually selected for the protective appliances in the terminal distribution box to improve the sensitivity of the protective appliances.
    (3) If the expected short-circuit current at the installation point is less than the rated section of the circuit breaker, the fuse can be used as backup protection because the rated short-circuit analysis ability of the fuse is strong.
    MNS low-voltage drawer cabinet provides you with the above wonderful contents. For more wonderful contents, please click to enter our website: http://www.apartrz.cn We will have more content for you to check later.
    首頁首頁 產品產品 電話電話 置頂置頂
    亚洲国产日韩在线观看第一页|无码精品日韩专区第一页|国产伦精品一区二区三区四区视频|国产欧美激情一区二区三区 国产伦精品一区二区三区女|亚洲国产精品无码一区二区三区|色综合久久久久久久久五月|久久av免费一区二区三区 久久久综合香蕉尹人综合网|日韩久久久久久无码精品|国内精品一区二区无码|中文字幕精品久久久人妻 国产日产韩产麻豆|国产精品无码在线观看|国产免费一区二区三区在线观看|日韩欧美精品综合久久
  • <kbd id="kdace"></kbd>