JPH03116525U

JPH03116525U -

Info

Publication number: JPH03116525U
Application number: JP2217590U
Authority: JP
Priority date: 1990-03-07
Filing date: 1990-03-07
Publication date: 1991-12-03

Description

【図面の簡単な説明】第１図は本考案の一実施例を示す開閉装置の相
互鎖錠を示す図、第２図は一般的な開閉装置を示
す単線結線図である。１……主母線、２……ライン回線、３……母線
側断路器、４……遮断器、５……ライン側断路器
、６……ライン側接地開閉器、７……キー機構、
７Ａ……キー、８，９……キー機構、９Ａ……キ
ー、１０，１１，１２……キー機構、１２Ａ……
キー、１３……キー機構。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram showing mutual locking of a switching device according to an embodiment of the present invention, and FIG. 2 is a single line diagram showing a general switching device. 1... Main bus, 2... Line line, 3... Bus bar side disconnector, 4... Circuit breaker, 5... Line side disconnector, 6... Line side earthing switch, 7... Key mechanism,
7A...key, 8,9...key mechanism, 9A...key, 10,11,12...key mechanism, 12A...
Key, 13...Key mechanism.

Claims

[Scope of Claim for Utility Model Registration] In a device in which a line line having a busbar-side disconnector, a circuit breaker, a line-side disconnector, and a line-side earthing switch is connected to the main bus, the line-side disconnector is on this line side. The disconnect switch is “
When the line side disconnector is in the "closed" state, the first key for manual operation can be inserted, and when the key is turned on, the line side disconnector can be operated, and when the line side disconnector is in the "closed" state, the first key can be inserted. a first key mechanism that is twisted to an extraction position to maintain the "closed" state of the line-side disconnector so that the first key can be extracted;
When the key is in the ON position, the line-side disconnector can be operated, and when the line-side disconnector is in the "open" state, the second key is inserted and twisted to the removal position to turn the line-side disconnector into the "open" state. and a second key mechanism that maintains the line-side earthing switch and allows the second key to be removed, and the line-side earthing switch is configured to insert the second key when the line-side earthing switch is in the "open" state. When the key is turned on, the line side earthing switch can be operated, and this line side earthing switch is
a third key mechanism that maintains the "open" state of the line-side earthing switch by twisting the second key to the insertion/extraction position when the second key is in the "open" position, and allows the second key to be extracted; This bus side disconnect switch is “closed”.
the second key can be inserted when the state is
When the key is turned on, the busbar side disconnect switch can be operated.
When the busbar side disconnector is in the "closed" state, the second key is inserted and twisted to the extraction position to maintain the busbar side disconnector in the "closed" state and to enable the second key to be extracted. The busbar side disconnector is operable when the key mechanism and the third key are in the on position, and when the busbar side disconnector is in the "open" state, the third key is inserted and twisted to the removal position to disconnect the busbar side disconnector. “Opening” of the vessel
a fifth key mechanism that maintains the state and allows the third key to be removed; the circuit breaker is configured such that the third key can be inserted when the circuit breaker is in the "open"state; When the circuit breaker is opened, the circuit breaker becomes operable.
The opening/closing device comprises a sixth key mechanism that maintains the "closed" state of the circuit breaker by twisting the third key to an insertion/extraction position when the third key is in the inserted/extracted position, and allows the third key to be extracted.