CN203398615U - Gas insulated switchgear - Google Patents
Gas insulated switchgear Download PDFInfo
- Publication number
- CN203398615U CN203398615U CN201320557464.3U CN201320557464U CN203398615U CN 203398615 U CN203398615 U CN 203398615U CN 201320557464 U CN201320557464 U CN 201320557464U CN 203398615 U CN203398615 U CN 203398615U
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- chamber
- protection device
- vacuum circuit
- self
- overcurrent protection
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Abstract
The utility model discloses a gas insulated switchgear including a cabinet body, a vacuum circuit breaker, a three-work-station isolation switch, a wire inlet insulator and a wire outlet insulator. An SF6 hermetic gas chamber, a mechanism chamber, a pressure releasing channel and a cable chamber are arranged in the cabinet body. The vacuum circuit breaker includes a vacuum circuit breaker body and an operation mechanism. The three-work-station isolation switch includes a three-work-station isolation switch body and an action mechanism. The wire inlet insulator is connected with the wire outlet insulator electrically through the vacuum circuit breaker body and the three-work-station switch body. A cable is connected with the wire outlet insulator electrically. A current transformer is arranged in the cable chamber and sleeves on the cable. The mechanism chamber is inside provided with a self-powered overcurrent protection device. A power terminal of the self-powered overcurrent protection device is connected with the current transformer electrically. A control terminal of the self-powered overcurrent protection device is connected with an opening solenoid of the operation mechanism electrically. The gas insulated switchgear provided by the utility model has advantages of being compact and reasonable in structure, low in cost and very good in using effect.
Description
Technical field
The utility model relates to a kind of gas-filling cabinet, belongs to electric switch technical field.
Background technology
Gas-filling cabinet is compared and is had numerous advantages with general air insulation cabinet.First owing to adopting the Compressed Gas (as SF6 gas) of excellent performance, greatly improved insulation property, 3 times of 2 ∽ that compressed gas insulation performance is air, and along with the rising of electric pressure, advantage is more obvious.Because this advantage is convenient to the less cabinet size of design, be conducive to develop to miniaturization; Secondly owing to adopting the Compressed Gas of excellent performance, sometimes can also improve arc extinction performance; Again, owing to adopting closed structure, be not therefore subject to the impact of extraneous environment (as condensation, filth, toy and chemical substance etc.), can be used for severe place.Spread unchecked in German Elbe as 2002, and gas-filling cabinet part is flooded, and but restores electricity very soon, and this has fully proved the feature that gas-filling cabinet is not affected by adverse circumstances.In addition, owing to adopting non-maintaining product structure, greatly reduce maintenance work, reduced maintenance cost.The structure of gas-filling cabinet in the market is mostly gone back Shortcomings, and still having can improvements.
Utility model content
To this, the purpose of this utility model is to provide the rational gas-filling cabinet of a kind of compact conformation.
The technical scheme that realizes the utility model object is:
, comprise cabinet, vacuum circuit-breaker, tri-station isolating switch, inlet wire insulator and outlet insulator; In described cabinet, be provided with SF6 sealed gas chamber, mechanism chamber, pressure release passage and cable vault;
Described vacuum circuit-breaker comprises vacuum circuit breaker body and operating mechanism, described tri-station isolating switch comprises tri-station isolating switch body and actuating mechanism, described inlet wire insulator is electrically connected to described outlet insulator through described vacuum circuit breaker body, described three-station body, described vacuum circuit breaker body and tri-station isolating switch body are arranged in SF6 sealed gas chamber, it is indoor that described operating mechanism and actuating mechanism are arranged on described mechanism, and the cable being arranged in described cable vault is electrically connected to described outlet insulator;
The pressure release orifice of described SF6 sealed gas chamber is communicated with pressure release passage;
In described cable vault, be also provided with current transformer, described current transformer is enclosed within on described cable;
Described mechanism is also provided with self-powered overcurrent protection device in chamber, and the power end of described self-powered overcurrent protection device is electrically connected to described current transformer, and the control end of described self-powered overcurrent protection device is electrically connected to the switching winding of described operating mechanism.
In technique scheme, also comprise the Pressure gauge that detects described SF6 sealed gas chamber internal pressure.
In technique scheme, the pressure release orifice place in described SF6 sealed gas chamber is provided with explosion-protection equipment.
In technique scheme, described pressure release orifice is arranged on the bottom of described SF6 sealed gas chamber.
In technique scheme, described SF6 sealed gas chamber and mechanism chamber are arranged side by side on described cabinet Nei top, described pressure release passage and cable vault are arranged side by side in described cabinet Nei bottom, and described pressure release passage is arranged on the below of described SF6 sealed gas chamber, described cable vault is arranged on the below of described mechanism chamber.
In technique scheme, described self-powered overcurrent protection device is fixedly mounted on described operating mechanism.
The utlity model has positive effect:
(1) in gas-filling cabinet of the present utility model, in described cable vault, current transformer is set, described current transformer is enclosed within on described cable; In described mechanism chamber, self-powered overcurrent protection device is set, the power end of described self-powered overcurrent protection device is electrically connected to described current transformer, and the control end of described self-powered overcurrent protection device is electrically connected to the switching winding of described operating mechanism.By adopting current transformer for self-powered overcurrent protection device provides electric energy, do not need to connect external power source; In use, when the electric current in cable is greater than the preset value of self-powered overcurrent protection device, self-powered overcurrent protection device will send separating brake instruction and drive the switching winding action of operating mechanism, makes breaker open operation; Than traditional gas-filling cabinet, gas-filling cabinet of the present utility model voltage transformer need not be installed, can realize switch protection, can effectively reduce the height of gas-filling cabinet, compact conformation is reasonable, with low cost, has good result of use.
(2) in gas-filling cabinet of the present utility model, described SF6 sealed gas chamber and mechanism chamber are arranged side by side on described cabinet Nei top, described pressure release passage and cable vault are arranged side by side in described cabinet Nei bottom, and described pressure release passage is arranged on the below of described SF6 sealed gas chamber, described cable vault is arranged on the below of described mechanism chamber.Said structure is reasonable, in use more convenient wiring and attended operation.
(3) in gas-filling cabinet of the present utility model, described self-powered overcurrent protection device is fixedly mounted on described operating mechanism.By adopting this structure that the mount pad that self-powered overcurrent protection device is installed just need not be set on the inwall of mechanism chamber, make the installation of self-powered overcurrent protection device fixing convenient.
Accompanying drawing explanation
Fig. 1 is the structural representation of gas-filling cabinet of the present utility model;
Fig. 2 is the end view of gas-filling cabinet shown in Fig. 1.
Reference numeral shown in figure is: 1-cabinet; 11-SF6 sealed gas chamber; 12-mechanism chamber; 13-pressure release passage; 14-cable vault; 2-inlet wire insulator; 3-outlet insulator; 4-vacuum circuit-breaker; 5-tri-station isolating switch; 6-current transformer; 7-cable; 8-self-powered overcurrent protection device; 9-Pressure gauge; 10-explosion-protection equipment.
Embodiment
Below in conjunction with Figure of description, a kind of embodiment of gas-filling cabinet of the present utility model is elaborated:
As depicted in figs. 1 and 2, a kind of gas-filling cabinet, comprises cabinet 1, vacuum circuit-breaker 4, tri-station isolating switch 5, inlet wire insulator 2 and outlet insulator 3; In described cabinet 1, be provided with SF6 sealed gas chamber 11, mechanism chamber 12, pressure release passage 13He cable vault 14; Described vacuum circuit-breaker 4 comprises vacuum circuit breaker body and operating mechanism, described tri-station isolating switch 5 comprises tri-station isolating switch body and actuating mechanism, described inlet wire insulator 2 is electrically connected to described outlet insulator 3 through described vacuum circuit breaker body, described three-station body, described vacuum circuit breaker body and tri-station isolating switch body are arranged in SF6 sealed gas chamber 11, described operating mechanism and actuating mechanism are arranged in described mechanism chamber 12, and the cable 7 being arranged in described cable vault 14 is electrically connected to described outlet insulator 3; The pressure release orifice of described SF6 sealed gas chamber 11 is communicated with pressure release passage 13; In described cable vault 14, be also provided with current transformer 6, described current transformer 6 is enclosed within on described cable 7; In described mechanism chamber 12, be also provided with self-powered overcurrent protection device 8; the power end of described self-powered overcurrent protection device 8 is electrically connected to described current transformer 6, and the control end of described self-powered overcurrent protection device 8 is electrically connected to the switching winding of described operating mechanism.By adopting current transformer 6 for self-powered overcurrent protection device 8 provides electric energy, do not need to connect external power source; In use, when the electric current in cable is greater than the preset value of self-powered overcurrent protection device 8, self-powered overcurrent protection device 8 will send separating brake instruction and drive the switching winding action of operating mechanism, makes breaker open operation; Than traditional gas-filling cabinet, gas-filling cabinet of the present utility model voltage transformer need not be installed, can realize switch protection, can effectively reduce the height of gas-filling cabinet, designs simplification is reasonable, with low cost, has good result of use.
In the gas-filling cabinet of the present embodiment, also comprise the Pressure gauge 9 that detects described SF6 sealed gas chamber 11 internal pressures.
In the gas-filling cabinet of the present embodiment, the pressure release orifice place in described SF6 sealed gas chamber 11 is provided with explosion-protection equipment 10, in order to protect the electric component in cabinet 1.
In the gas-filling cabinet of the present embodiment, described pressure release orifice is arranged on the bottom of described SF6 sealed gas chamber 11.
In the gas-filling cabinet of the present embodiment, described SF6 sealed gas chamber 11He mechanism chamber 12 is arranged side by side on described cabinet 1 Nei top, described pressure release passage 13He cable vault 14 is arranged side by side in described cabinet 1 Nei bottom, and described pressure release passage 13 is arranged on the below of described SF6 sealed gas chamber 11, described cable vault 14 is arranged on the below of described mechanism chamber 12, said structure is reasonable, in use more convenient wiring and attended operation.
In the gas-filling cabinet of the present embodiment; described self-powered overcurrent protection device 8 is fixedly mounted on described operating mechanism; by adopting this structure that the mount pad that self-powered overcurrent protection device 8 is installed just need not be set on the inwall of mechanism chamber 12, make the installation of self-powered overcurrent protection device 8 fixing convenient.
Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all execution modes.And these belong to apparent variation or the change that connotation of the present utility model extends out and still belong to protection range of the present utility model.
Claims (6)
1. a gas-filling cabinet, comprises cabinet (1), vacuum circuit-breaker (4), tri-station isolating switch (5), inlet wire insulator (2) and outlet insulator (3); In described cabinet (1), be provided with SF6 sealed gas chamber (11), mechanism chamber (12), pressure release passage (13) and cable vault (14);
Described vacuum circuit-breaker (4) comprises vacuum circuit breaker body and operating mechanism, described tri-station isolating switch (5) comprises tri-station isolating switch body and actuating mechanism, described inlet wire insulator (2) is through described vacuum circuit breaker body, described three-station body is electrically connected to described outlet insulator (3), described vacuum circuit breaker body and tri-station isolating switch body are arranged in SF6 sealed gas chamber (11), described operating mechanism and actuating mechanism are arranged in described mechanism chamber (12), the cable (7) being arranged in described cable vault (14) is electrically connected to described outlet insulator (3),
The pressure release orifice of described SF6 sealed gas chamber (11) is communicated with pressure release passage (13);
It is characterized in that: in described cable vault (14), be also provided with current transformer (6), described current transformer (6) is enclosed within on described cable (7);
Described mechanism is also provided with self-powered overcurrent protection device (8) in chamber (12); the power end of described self-powered overcurrent protection device (8) is electrically connected to described current transformer (6), and the control end of described self-powered overcurrent protection device (8) is electrically connected to the switching winding of described operating mechanism.
2. gas-filling cabinet according to claim 1, is characterized in that: also comprise the Pressure gauge (9) that detects described SF6 sealed gas chamber (11) internal pressure.
3. gas-filling cabinet according to claim 2, is characterized in that: the pressure release orifice place in described SF6 sealed gas chamber (11) is provided with explosion-protection equipment (10).
4. gas-filling cabinet according to claim 3, is characterized in that: described pressure release orifice is arranged on the bottom of described SF6 sealed gas chamber (11).
5. gas-filling cabinet according to claim 4, it is characterized in that: described SF6 sealed gas chamber (11) and mechanism chamber (12) are arranged side by side on described cabinet (1) Nei top, described pressure release passage (13) and cable vault (14) are arranged side by side in described cabinet (1) Nei bottom, and described pressure release passage (13) is arranged on the below of described SF6 sealed gas chamber (11), described cable vault (14) are arranged on the below of described mechanism chamber (12).
6. according to the gas-filling cabinet described in any one in claim 1 to 5, it is characterized in that: described self-powered overcurrent protection device (8) is fixedly mounted on described operating mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320557464.3U CN203398615U (en) | 2013-09-09 | 2013-09-09 | Gas insulated switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320557464.3U CN203398615U (en) | 2013-09-09 | 2013-09-09 | Gas insulated switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203398615U true CN203398615U (en) | 2014-01-15 |
Family
ID=49910115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320557464.3U Expired - Fee Related CN203398615U (en) | 2013-09-09 | 2013-09-09 | Gas insulated switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203398615U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105071279A (en) * | 2015-08-21 | 2015-11-18 | 亚洲电力设备(深圳)股份有限公司 | Load switch ring main unit suitable for being insulated by environment-friendly gas |
| CN107834420A (en) * | 2017-11-21 | 2018-03-23 | 北京合纵科技股份有限公司 | A kind of switch cubicle pressure relief device |
-
2013
- 2013-09-09 CN CN201320557464.3U patent/CN203398615U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105071279A (en) * | 2015-08-21 | 2015-11-18 | 亚洲电力设备(深圳)股份有限公司 | Load switch ring main unit suitable for being insulated by environment-friendly gas |
| CN107834420A (en) * | 2017-11-21 | 2018-03-23 | 北京合纵科技股份有限公司 | A kind of switch cubicle pressure relief device |
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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: 20140115 Termination date: 20190909 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |