High Voltage Switchgear and RMU is any difference between the ring finger ring distribution network, low voltage switch cabinet how? That the supply mains to form a closed loop, power supply to the ring mains supply, then all the way from the trunk all the way to distribution out through the high-voltage switch. The advantage is that each distribution branch either left with its side of the trunk to take power, but it can take power from the right side of the trunk. When the left side of the trunk out of trouble, it will continue to receive power from the right side of the trunk, and when the right side of the trunk out of trouble, it will continue to be from the left side of the trunk power supply, so since, although the overall power supply is a single power supply, but each branch is yet to enjoy the benefits of distribution similar to dual power supply, thereby improving the reliability of power supply. The so-called "RMU" is that every power distribution branches located a switchgear (outgoing switch cabinet) while the ring is part of the trunk of this switchgear bus. That is, Tangyin low voltage ring mains outlet cabinet by each bus connection up composed of. Each outlet cabinet called "RMU." In fact single out one RMU can not see the "ring" of meaning. These RMU is not large, and thus ring The high-voltage switch cabinet is generally not used the complex structure of the circuit breaker and take high voltage switches with a simple structure with high voltage fuses. That is, the ring of high-voltage switch cabinet generally load switch. RMU with load switch operation normal current, while the removal of short-circuit current with a fuse, which replaces the combination of the two circuit breakers. Of course this is only limited to a certain capacity. Such switchgear distribution system also can be used in a non-ring structure, low voltage switch cabinet principle, so with the wide application of this switchgear, "RMU" jumped out of the ring mains and refers to the scope of the main switch load switch high voltage switchgear of low voltage fuses What are the main functions? A: The main is to achieve low-voltage distribution system short-circuit protection, low voltage switch procurement, some can achieve its overload protection. What is the main function of low voltage knife switch is? A: The no-load operation, for isolation switch. What low-voltage fuse switch and load switch main functions? A: The low-voltage fuse switch has a dual function knife switch and fuse. The main function of effective load switch off load current, can short-circuit protection. What is the main function of low voltage circuit breaker? A: both off-load circuit, can automatically trip the short circuit, overload and loss of pressure. Low voltage switch cabinet installation, Tangyin low voltage, provided by the Henan Xi Xi Connaught Electrical and Mechanical and Electrical Equipment Co. Connaught. Henan Xi Connaught Electrical Equipment Co. (www.hnxinuo.com) strong, credible, in Zhengzhou, Henan electronics, electrical products processing industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Connaught Electrical and Mechanical study into the brilliant and you work for a better future!