Strip fuse isolation switch technical characteristics are mainly single and double breakpoint breakpoints,
Strip fuse isolation switch it not only has a switch, protection function, through the other system feature that can extend its function, so it has more flexibility, may say that it is not only a kind of switch type, more important is that he is a complete set of intelligent system. The plug-in technology cable branch circuit with power distribution screen, such as with a pull-out type technology, it is more economical. It has the advantages of compact structure, and through the line side of the socket contact, can realize the rapid refit or all the switches are equipped with electronic fuse monitoring device, it can be to 3 fuses are electronic fuse monitoring, through a separate mounting fault indicator to realize the control room power supply and signal transmission to the control room. According to alarm indicator design, can be as many as 10 or as many as 100 isolating switch in series, the " + ", " - " line, and signal lines are connected. The three lines end with the fault indicator connected to the control room, the fault signal ( a signal ) is transmitted via a signal line.
Since the fuse protection has many irreplaceable advantages, has been widely used in Europe, especially in the low voltage power network of cable and line protection of these application areas. Therefore various strip isolating switch has been successfully applied to the continuous development of the technology of switch and fuse combination, due to its small size, high safety, reasonable price and other advantages, there is reason to believe that, 3NJ Series bar disconnecting switch must be such as power grids and other more broad fields play a greater role in. In recent years, the development that farming net transforms, to the demand for such products will be greatly increased, at the same time for safety lamp, is also very necessary. |