CN202771994U - Mechanical interlocking device applied between line grounding and cable chamber door of cubicle gas insulated switchgear - Google Patents
Mechanical interlocking device applied between line grounding and cable chamber door of cubicle gas insulated switchgear Download PDFInfo
- Publication number
- CN202771994U CN202771994U CN 201220344298 CN201220344298U CN202771994U CN 202771994 U CN202771994 U CN 202771994U CN 201220344298 CN201220344298 CN 201220344298 CN 201220344298 U CN201220344298 U CN 201220344298U CN 202771994 U CN202771994 U CN 202771994U
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- China
- Prior art keywords
- plate
- limiting
- circuit breaker
- chamber door
- cable chamber
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Abstract
The utility model discloses a mechanical interlocking device applied between a line grounding and a cable chamber door of a cubicle gas insulated switchgear, wherein a limiting connecting lever is rotatably arranged on a mechanism bracket, and the lower end of the limiting connecting lever is connected with the mechanism bracket through a spring; a three-position disconnecting switch operating mechanism indicating dial is arranged on the mechanism bracket; a limiting plate is arranged on a limiting baffle plate rod, and one end of the limiting baffle plate rod is arranged on a door lifting baffle plate; an interlocking plate is rotatably arranged on a circuit breaker change-over switch; a limiting interlocker is arranged on a circuit breaker side plate, and a torsional spring is arranged between the limiting interlocker and the circuit breaker side plate; a movable plate is rotatably arranged at the front end of the limiting interlocker, and the movable plate is connected with the limiting interlocker through a spring; a supporting plate is arranged on the lower part of a circuit breaker; and the lower side of the supporting plate is connected with a cable chamber door through a limiting pin. According to the mechanical interlocking device, interlocking between the cable chamber door and the circuit breaker as well as and the three-position operating mechanism is realized, so as to avoid an accident in case that the cable chamber door is opened due to an erroneous operation of maintenance staff.
Description
Technical field
The utility model relates to a kind of mechanical interlocks of gas-filling cabinet, particularly the mechanical interlocks of a kind of gas-filling cabinet between line-to-ground and the cable chamber door.
Background technology
At present, in general the medium pressure gas insulation cabinet does not have the mechanical latching relation between cable chamber door and the line side ground connection, rely on the handling safety regulations to guarantee.
Press gas-filling cabinet without earthing independently in traditional switch cubicle, ground connection realizes by three-station and circuit breaker interlock, and therefore, the interlocking between ground connection and the cable chamber door will be realized with cable chamber door by three-station and circuit breaker, and is relatively complicated.
Tri-station isolating switch: relevantly respectively close, isolation, three kinds of states of ground connection; Closing in the pass can be by the short circuit current under normal operating current and the fault under the state; Infallible ground of energy buffer circuit under isolation; Under ground state, can with loop ground connection, under exceptional condition, can carry the abnormal current of regulation.
Three-Position Switch Operate Institutions: can operate and finish the mechanical device that three stations close minute the ground action.
Circuit breaker: can close close, carrying, beginning operating loop normal current, also can close at the appointed time close, the switchgear of the overload current (comprising short circuit current) of carrying and switch regulation.
In operation maintenance, when being in "on" position such as switch cubicle, should first breaker open operation, three-station is operated to ground state, and last breaker closing can operate when making a circuit cable side ground connection and open cable chamber door.When maintenance was finished, after the first cable chamber door of palpus was closed, circuit breaker just can carry out sub-switching operation, and three-station is operated to closing position, and last breaker switching-on operation is finished a circuit cable side energising.Prevented the generation of security incident.
The utility model content
The technical problems to be solved in the utility model provides a kind of simple in structure, security performance is high a kind of gas-filling cabinet with the mechanical interlocks between line-to-ground and the cable chamber door.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of gas-filling cabinet is characterized in that: comprise Three-Position Switch Operate Institutions indicating dial, mechanism rack, spacing connecting lever, spring, limiting plate, limiting block plate stem, spacing interlocking, torsion spring, portable plate, carry door guard plate, spacer pin, supporting plate, circuit breaker side plate, circuit breaker change over switch and interlock plate with the mechanical interlocks between line-to-ground and the cable chamber door;
Described spacing connecting lever is rotating to be placed on the mechanism rack, and its lower end is connected with mechanism rack by spring; Described Three-Position Switch Operate Institutions indicating dial is placed on the mechanism rack; Described limiting plate is placed on the limiting block plate stem, and an end of described limiting block plate stem is placed in to be carried on the door guard plate; Described interlock plate is rotating to be placed on the device change over switch of road, and described spacing interlocking is placed on the circuit breaker side plate, is provided with torsion spring between described spacing interlocking and the circuit breaker side plate; Portable plate is rotatable to be placed in spacing interlocking front end, and described portable plate is connected by spring with spacing interlocking; Described supporting plate is placed in the circuit breaker bottom, and described supporting plate downside is connected with cable chamber door by spacer pin.
By technique scheme, the beneficial effects of the utility model are:
The utility model is to be provided with interlock between the three-position switch operation mechanism of gas-filling cabinet and circuit breaker and cable chamber door, can open cable chamber door when making primary circuit cable side ground connection; And only have when cable chamber door is closed, just can carry out the operation of breaker operator and three-station; After this interlock was installed, the safety requirements in the repair and maintenance had been satisfied in circuit breaker and three-station misoperation when having prevented that the unearthed misoperation of opening cable chamber door of primary circuit cable side and cable chamber door from not closing.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the utility model the utility model assembling schematic diagram;
Spacing connecting lever view when Fig. 2 is the ungrounded state of the utility model three stations;
Spacing connecting lever view when Fig. 3 is the utility model three station ground state;
Spacing Interlock Status schematic diagram when Fig. 4 is the utility model breaker open operation;
Spacing Interlock Status schematic diagram when Fig. 5 is the utility model breaker closing;
Numeral and the represented corresponding component title of letter among the figure:
1, Three-Position Switch Operate Institutions indicating dial 2, mechanism rack 3, spacing connecting lever 4, spring 5, limiting plate 6, limiting block plate stem 7, spacing interlocking 8, torsion spring 9, portable plate 10, carry door guard plate 11, cable chamber door 12, spacer pin 13, supporting plate 14, circuit breaker side plate 15, circuit breaker change over switch 16, interlock plate
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
To shown in Figure 5, a kind of gas-filling cabinet of the utility model comprises Three-Position Switch Operate Institutions indicating dial 1, mechanism rack 2, spacing connecting lever 3, spring 4, limiting plate 5, limiting block plate stem 6, spacing interlocking 7, torsion spring 8, portable plate 9, carries door guard plate 10, spacer pin 12, supporting plate 13, circuit breaker side plate 14, circuit breaker change over switch 15 and interlock plate 16 with the mechanical interlocks between line-to-ground and the cable chamber door referring to Fig. 1.
Spacing interlocking 7 is placed on the circuit breaker side plate 14, is provided with torsion spring 8 between spacing interlocking 7 and the circuit breaker side plate 14; Interlock plate 16 withstands spacing interlocking 7, and interlock plate 16 angles are closed with circuit breaker and minute rotated.
14 of circuit breaker side plates produce spacing to spacing interlocking 7 tops, reach position-limiting action to carrying door guard plate 10, interlock plate 16 rotations during breaker closing, and the power of torsion spring 8 makes interlock plate 16 rotations and removes that to carry door guard plate 10 spacing.
Above demonstration and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (1)
1. a gas-filling cabinet is characterized in that: comprise Three-Position Switch Operate Institutions indicating dial, mechanism rack, spacing connecting lever, spring, limiting plate, limiting block plate stem, spacing interlocking, torsion spring, portable plate, carry door guard plate, spacer pin, supporting plate, circuit breaker side plate, circuit breaker change over switch and interlock plate with the mechanical interlocks between line-to-ground and the cable chamber door;
Described spacing connecting lever is rotating to be placed on the mechanism rack, and its lower end is connected with mechanism rack by spring; Described Three-Position Switch Operate Institutions indicating dial is placed on the mechanism rack; Described limiting plate is placed on the limiting block plate stem, and an end of described limiting block plate stem is placed in to be carried on the door guard plate; Described interlock plate is rotating to be placed on the device change over switch of road, and described spacing interlocking is placed on the circuit breaker side plate, is provided with torsion spring between described spacing interlocking and the circuit breaker side plate; Portable plate is rotatable to be placed in spacing interlocking front end, and described portable plate is connected by spring with spacing interlocking; Described supporting plate is placed in the circuit breaker bottom, and described supporting plate downside is connected with cable chamber door by spacer pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220344298 CN202771994U (en) | 2012-07-16 | 2012-07-16 | Mechanical interlocking device applied between line grounding and cable chamber door of cubicle gas insulated switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220344298 CN202771994U (en) | 2012-07-16 | 2012-07-16 | Mechanical interlocking device applied between line grounding and cable chamber door of cubicle gas insulated switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202771994U true CN202771994U (en) | 2013-03-06 |
Family
ID=47778547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220344298 Expired - Fee Related CN202771994U (en) | 2012-07-16 | 2012-07-16 | Mechanical interlocking device applied between line grounding and cable chamber door of cubicle gas insulated switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202771994U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956657A (en) * | 2014-04-10 | 2014-07-30 | 北京华电瑞通电力工程技术有限公司 | Interlocking plate preventing straying into charged interval and high-voltage switch gear |
| CN111415831A (en) * | 2020-03-14 | 2020-07-14 | 广东正超电气有限公司 | Mechanical locking control mechanism for grounding switch and cable chamber door of switch cabinet |
| CN112509836A (en) * | 2020-12-01 | 2021-03-16 | 上海平高天灵开关有限公司 | Linkage type interlocking structure for switch cabinet |
| CN114141557A (en) * | 2021-10-18 | 2022-03-04 | 上海益君电气有限公司 | Aerify cabinet cable chamber door and prevent mistake interlocking device |
-
2012
- 2012-07-16 CN CN 201220344298 patent/CN202771994U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956657A (en) * | 2014-04-10 | 2014-07-30 | 北京华电瑞通电力工程技术有限公司 | Interlocking plate preventing straying into charged interval and high-voltage switch gear |
| CN111415831A (en) * | 2020-03-14 | 2020-07-14 | 广东正超电气有限公司 | Mechanical locking control mechanism for grounding switch and cable chamber door of switch cabinet |
| CN111415831B (en) * | 2020-03-14 | 2022-04-08 | 广东正超电气有限公司 | Mechanical locking control mechanism for grounding switch and cable chamber door of switch cabinet |
| CN112509836A (en) * | 2020-12-01 | 2021-03-16 | 上海平高天灵开关有限公司 | Linkage type interlocking structure for switch cabinet |
| CN114141557A (en) * | 2021-10-18 | 2022-03-04 | 上海益君电气有限公司 | Aerify cabinet cable chamber door and prevent mistake interlocking device |
| CN114141557B (en) * | 2021-10-18 | 2024-04-05 | 上海益君电气有限公司 | Anti-misoperation interlocking device for cable chamber door of inflatable cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20200716 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |