JPH03127433U

JPH03127433U -

Info

Publication number: JPH03127433U
Application number: JP3755890U
Authority: JP
Priority date: 1990-04-06
Filing date: 1990-04-06
Publication date: 1991-12-20
Anticipated expiration: 2004-11-14
Also published as: JPH0644260Y2

Description

[Brief explanation of the drawing]

第１図ないし第６図は本考案の一実施例を示す
もので、第１図はバスダクトの横断面図、第２図
は第１図のＡ−Ａ線断面図、第３図は蓋の背面図
、第４図は第３図のＢ−Ｂ線断面図、第５図は蓋
の他の実施例を示す断面図、第６図は開放検知器
の結線の一例を示す説明図、第７図は配電用変電
所全体を示す単線結線図、第８図は従来のバスダ
クトの点検孔の蓋を示す断面図である。１_１，１_２，１_３……変圧器、２，２_１，２_２〜２_１１……バスダクト、３_１，３_２，３_３……
閉鎖配電盤、４，４ａ，４ｂ，４ｃ……電路導体
、５……絶縁碍子、６……点検孔、７……点検孔
の蓋、８……蝶番、９……ロツク機構、１０……
ハンドル、１２……アーム、１３……ロツド、１
４……ハンドル回転停止溝、１５……ストツパ軸
、１６……ソレノイド、１７……可動片、１８，
１８_１……開放検知器、１９……軸、２０……ガ
イド、２１……振れ止め、２２……変成器、２４
……窓、２５……充電警告器、２６……発光素子
、２７……スイツチノブ、２８……継手部、２９
……ボルト、３０……ナツト、３１……カバー、
３２……変成器の２次巻線端子、３３_１，３３_２，３３_３……接地器、３４_１，３４_３……線路、
３５……配電線、３６_１，３６_３，３７_１，３７
_２，３７_３，３８_１，３８_２，３９_１，３９_２，
３９_３……開閉器、４１……励磁コイル、４２…
…操作スイツチ、４３_１，４３_３……遮断器、４
５_１，４５_３……接地機構、４６……係合片、４
７……回転体、４８_１，４８_２，４９_１〜４９_６……手動開閉器、５１……ボルト、５２……ナツ
ト。 Figures 1 to 6 show an embodiment of the present invention. Figure 1 is a cross-sectional view of a bus duct, Figure 2 is a cross-sectional view taken along line A-A in Figure 1, and Figure 3 is a cross-sectional view of a lid. 4 is a sectional view taken along the line B-B in FIG. 3, FIG. 5 is a sectional view showing another embodiment of the lid, FIG. 6 is an explanatory diagram showing an example of the connection of the open detector, and FIG. FIG. 7 is a single line diagram showing the entire distribution substation, and FIG. 8 is a sectional view showing the cover of the inspection hole of a conventional bus duct. 1 ₁ , 1 ₂ , 1 ₃ ...Transformer, 2, _{2 1} , 2 ₂ ~2 ₁₁ ... bus duct, 3 ₁ , 3 ₂ , 3 ₃ ...
Closed switchboard, 4, 4a, 4b, 4c...Electric circuit conductor, 5...Insulator, 6...Inspection hole, 7...Inspection hole cover, 8...Hinge, 9...Lock mechanism, 10...
Handle, 12... Arm, 13... Rod, 1
4...Handle rotation stop groove, 15...Stopper shaft, 16...Solenoid, 17...Movable piece, 18,
18 ₁ ... Open detector, 19... Shaft, 20... Guide, 21... Steady rest, 22... Transformer, 24
... Window, 25 ... Charge warning device, 26 ... Light emitting element, 27 ... Switch knob, 28 ... Joint part, 29
...Bolt, 30...Natsuto, 31...Cover,
32...Secondary winding terminal of transformer, 33 ₁ , 33 ₂ , 33 ₃ ... Earthing device, 34 ₁ , 34 ₃ ... Line,
35... Distribution line, 36 ₁ , 36 ₃ , 37 ₁ , 37
₂ , 37 ₃ , 38 ₁ , 38 ₂ , 39 ₁ , 39 ₂ ,
39 ₃ ... Switch, 41... Excitation coil, 42...
...operation switch, 43 ₁ , 43 ₃ ... circuit breaker, 4
5 ₁ , 45 ₃ ... Earthing mechanism, 46 ... Engagement piece, 4
7... Rotating body, 48 ₁ , 48 ₂ , 49 ₁ to 49 ₆ ...Manual switch, 51...Bolt, 52...Nut.

Claims

[Claims for Utility Model Registration] (1) In a device in which an inspection hole provided for inspecting a bus duct housing a power distribution circuit conductor is provided with a lid that can be opened and closed, a lock mechanism for locking the lid. A safety device for a bus duct inspection hole, characterized in that the primary winding side of the transformer is connected to the electric circuit conductor housed in the bus duct, and the secondary winding side is connected to the lock mechanism. (2) The safety device for a bus duct inspection hole according to claim (1), further comprising a circuit breaker that detects opening and closing of the lid and leads to the circuit conductor, and an opening detector that limits the opening and closing of the switch. (3) The safety device for a bus duct inspection hole according to claim (1) or (2), further comprising a charging warning device that detects the charging state of the electrical circuit conductor and emits light.