| 摘要 |
<P>PROBLEM TO BE SOLVED: To miniaturize the entire panelboard by miniaturizing a drawer type device having a current cut-off function to stack as many drawer type devices as possible in the panelboard, and reducing a wiring space with no inhibition on easy cable wiring operation. <P>SOLUTION: A vacuum valve 22c as well as a high voltage fuse 22a are laterally arranged to reduce the height of a drawer type device 22 than before, allowing stacking and storing of more drawer type devices 22 in a panelboard 21 than before. By employing a first insulating frame 22i of integral structure in which the high voltage fuse 22a is stored on upper side while the vacuum valve 22c is stored in lower side, divided for each phase unit, breakage of other components is prevented when the high voltage fuse 22a breaks. A power supply side disconnection part 22e is laterally deviated from a load side disconnection part 22f to allow vertical bus lines 24a to be arranged vertically and linearly. A fixing second insulating frame 22q fixes the vertical bus lines 24a and load side terminals 22h. <P>COPYRIGHT: (C)2008,JPO&INPIT |
