CN202423946U - Combined switch electrical appliance air chamber - Google Patents
Combined switch electrical appliance air chamber Download PDFInfo
- Publication number
- CN202423946U CN202423946U CN2011205454110U CN201120545411U CN202423946U CN 202423946 U CN202423946 U CN 202423946U CN 2011205454110 U CN2011205454110 U CN 2011205454110U CN 201120545411 U CN201120545411 U CN 201120545411U CN 202423946 U CN202423946 U CN 202423946U
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- CN
- China
- Prior art keywords
- air chamber
- breaker
- electrical equipment
- switch electrical
- shell
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Gas-Insulated Switchgears (AREA)
Abstract
The utility model relates to a combined switch electrical appliance air chamber which is simple in structure and excellent in performance, and is used for a power system. The combined switch electrical appliance air chamber comprises an air chamber shell, and a breaker and an isolation switch which are arranged in the shell, wherein the isolation switch is distributed below the breaker; a sleeve pipe which is used for connecting an external cable with the air chamber is embedded on the shell; and the breaker is a permanent magnet breaker. Compared with the prior art, the breaking current time of the permanent magnet breaker is obviously shorter than that of a spring operation mechanism breaker.
Description
Technical field
The utility model relates to a kind of device for switching air chamber, the combined electrical equipment air chamber of circuit breaker and isolating switch in especially a kind of electric power system.
Background technology
Circuit breaker obtains development more and more widely as the supply power mode of drop-out current in the electric power system; Consider high stability, high reliability that electric equipment uses; Require the power supply unit in the electric power system that tangible cut-off point need be provided; The combined combined electrical apparatus supply power mode of circuit breaker and isolating switch more and more receives the support in market, but there are many deficiencies in so in the market combined electrical apparatus, is mainly reflected in following aspect:
1, circuit breaker adopts spring operating mechanism basically; The one, operating mechanism is complicated, amount of parts is many; Mechanism's stability in use, poor reliability show 50% circuit breaker failure all because of the breaker mechanism fault causes according to power department to circuit breaker failure statistics, in case and mechanism have only special technical staff to solve when breaking down; The 2nd, the quenching time is long, and its arc extinction performance brought great test when the circuit breaker of employing spring operating mechanism ran into short circuit current.
2, the isolating switch volume of combined electrical apparatus employing is big, and most of isolating switch does not possess grounding function;
3, the isolating switch fracture of combined electrical apparatus employing is invisible, and whether interlock puts in place can not to observe the isolation dynamic/static contact in the equipment running process, and this brings very big influence for safety, stable operation and overhaul of the equipments of equipment.
4, most of combined electrical apparatus adopts air insulation; Gas is big, the IP degree of protection is not high, also have portion to adopt the gas isolated gas-filled type combined electrical apparatus of SF6, but inflatable air chamber does not design inner temperature measuring equipment; In equipment running process, the air chamber internal temperature can not be detected, on-line monitoring can not be realized.
The utility model content
The purpose of the utility model is to provide a kind of unit switch electrical equipment air chamber of simple in structure, function admirable.
In order to address the above problem; The technical scheme that the utility model adopts is, unit switch electrical equipment air chamber comprises the shell of air chamber; And installation circuit breaker and isolating switch in the enclosure; Isolating switch is arranged in the below of circuit breaker, is embedded with the sleeve pipe that supplies extraneous cable to be connected with air chamber on the shell, and said circuit breaker is a permanent magnet mechanism circuit-breaker;
As improvement, said isolating switch is a three-stations load switch;
As improvement, also comprise the three-stations load switch operating mechanism that is arranged on the shell outside;
As improvement, also comprise the breaker open operation handle of manual control;
As improvement, also comprise the isolated port watch window of observing isolated port and the grounding ports watch window of observing grounding ports;
As improvement, isolated port watch window and/or grounding ports watch window are installed camera;
As improvement, the gas that charges in the air chamber is SF6 gas;
As improvement, also comprise the infrared temperature measurement apparatus of air chamber internal temperature on-line testing.
The beneficial effect that the utility model produces is,
1, the circuit breaker that adopts on the related combined electrical apparatus of present technique scheme is a permanent-magnet operating mechanism; The permanent magnet mechanism amount of parts is about 25% of a spring mechanism amount of parts; Its operation lifetime is higher than spring operating mechanism far away, and most importantly the permanent magnet mechanism circuit-breaker drop-out current time is starkly lower than the operating machine of the spring mechanism circuit-breaker;
2, the isolating switch that adopts on the related combined electrical apparatus of present technique scheme realizes by three-stations load switch, not only realizes the function of isolating, and the function that can also be grounded, and advantages of small volume;
3, the combined electrical apparatus that relates to of this technical scheme is when operation; Three-stations load switch can play the function of cut-offfing normal rated current; Then rely on circuit breaker to realize cut-offfing of short circuit current when running into short circuit current; Need not design interlock between circuit breaker and the three-stations load switch like this, simplify whole combined electrical apparatus structural design greatly;
4, the related combined electrical apparatus of present technique scheme is sealed in circuit breaker and three-stations load switch in the sealed air chamber that is full of insulating gass such as SF6; The shell protection grade is high; Equipment operation does not receive the influence of external environment; And sealed air chamber's enclosure designs isolation fracture observation window, grounding ports observation window, and camera can be installed above observation window, realize the on-line monitoring of isolation fracture, ground connection fracture; Effectively avoid because of faults such as isolator operating mechanism cause the dynamic and static contact interlock of isolation not in place, the accident that exploitation is burnt in long-time running takes place.
5, be designed with infrared temperature measurement apparatus on the related combined electrical apparatus sealed air chamber shell of present technique scheme; Can in equipment utilization process, test sealed air chamber's internal temperature; And, effectively guarantee the stable operation of equipment operation at the auxiliary on-line monitoring of realization power equipment down of associated communication.
6, the related combined electrical apparatus of present technique scheme is designed with the urgent separating brake handle of circuit breaker, and the separating brake of circuit breaker is realized by electric operating under the normal condition, runs into special circumstances and also can rely on urgent separating brake handle to realize breaker open operation.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the side structure sketch map of the utility model embodiment.
Reference numeral: 1. permanent magnet mechanism circuit-breaker; 2. three-stations load switch; 3. three-stations load switch operating mechanism; 4. sleeve pipe; 5. lead;
6. infrared temperature measurement apparatus; 7. isolation fracture watch window; 8. ground connection fracture watch window; 9. the urgent separating brake handle of circuit breaker; 10. sealed air chamber's shell.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is elaborated.
The unit switch electrical equipment air chamber that the utility model provides is the combined device for switching air chamber of circuit breaker and isolating switch; Comprise: sealed air chamber's shell 10; With the switch module that is arranged in sealed air chamber's shell 10, wherein, switch module comprises: permanent magnet mechanism circuit-breaker 1; And the three-stations load switch 2 that is arranged in permanent magnet mechanism circuit-breaker 1 below, three-stations load switch 2 is connected with sleeve pipe 4 on being embedded in sealed air chamber's shell 10 through lead 5.The utility model also comprises: be installed in the three-stations load switch operating mechanism 3 in sealed air chamber's shell 10 outsides, easy access; Like Fig. 2, the urgent separating brake handle 9 of circuit breaker is installed on sealed air chamber's shell 10, when running into special circumstances, can rely on the urgent separating brake handle 9 of circuit breaker to realize the separating brake of permanent magnet mechanism circuit-breaker 1, improved coefficient of safety; On sealed air chamber's shell 10, also be provided with isolation fracture watch window 7 and ground connection fracture watch window 8; Be used for isolation fracture and ground connection fracture are observed; Further improve, can on isolation fracture watch window 7 and/or ground connection fracture observation window 8, camera be installed, realize on-line monitoring isolation fracture, ground connection fracture; Effectively avoid because of faults such as isolator operating mechanism cause the dynamic and static contact interlock of isolation not in place, long-time running causes accident to take place.The gas that in air chamber, charges into is the good SF6 gas of insulating properties, and infrared temperature measurement apparatus 6 is installed in the outside of sealed air chamber's shell 10, and it can monitor sealed air chamber's internal temperature in equipment running process, effectively guaranteed operation stability of equipment.
Claims (8)
1. a unit switch electrical equipment air chamber comprises the shell of air chamber, and circuit breaker and isolating switch in the enclosure is installed; Isolating switch is arranged in the below of circuit breaker; Be embedded with the sleeve pipe that supplies extraneous cable to be connected on the shell, it is characterized in that said circuit breaker is a permanent magnet mechanism circuit-breaker with air chamber.
2. according to the said unit switch electrical equipment of claim 1 air chamber, it is characterized in that said isolating switch is a three-stations load switch.
3. according to the said unit switch electrical equipment of claim 2 air chamber, it is characterized in that, also comprise the three-stations load switch operating mechanism that is arranged on the shell outside.
4. according to the said unit switch electrical equipment of claim 3 air chamber, it is characterized in that, also comprise the breaker open operation handle of manual control.
5. according to the said unit switch electrical equipment of claim 4 air chamber, it is characterized in that, also comprise the isolated port watch window of observing isolated port and the grounding ports watch window of observing grounding ports.
6. according to the said unit switch electrical equipment of claim 5 air chamber, it is characterized in that isolated port watch window and/or grounding ports watch window are installed camera.
7. according to the said unit switch electrical equipment of claim 6 air chamber, it is characterized in that the gas that charges in the air chamber is SF6 gas.
8. according to the said unit switch electrical equipment of claim 7 air chamber, it is characterized in that, also comprise the infrared temperature measurement apparatus of air chamber internal temperature on-line testing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205454110U CN202423946U (en) | 2011-12-23 | 2011-12-23 | Combined switch electrical appliance air chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205454110U CN202423946U (en) | 2011-12-23 | 2011-12-23 | Combined switch electrical appliance air chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202423946U true CN202423946U (en) | 2012-09-05 |
Family
ID=46748672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205454110U Expired - Lifetime CN202423946U (en) | 2011-12-23 | 2011-12-23 | Combined switch electrical appliance air chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202423946U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103178466A (en) * | 2011-12-23 | 2013-06-26 | 青岛特锐德电气股份有限公司 | Combined switch appliance air chamber |
| CN104599870A (en) * | 2014-07-30 | 2015-05-06 | 新疆特变电工自控设备有限公司 | Permanent magnetic and elastic operation combined mechanism |
| CN109244924A (en) * | 2018-09-20 | 2019-01-18 | 沈阳华德海泰电器有限公司 | A kind of gas insulated combined electrical equipment of band isolation on-load switch |
-
2011
- 2011-12-23 CN CN2011205454110U patent/CN202423946U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103178466A (en) * | 2011-12-23 | 2013-06-26 | 青岛特锐德电气股份有限公司 | Combined switch appliance air chamber |
| CN104599870A (en) * | 2014-07-30 | 2015-05-06 | 新疆特变电工自控设备有限公司 | Permanent magnetic and elastic operation combined mechanism |
| CN104599870B (en) * | 2014-07-30 | 2017-01-25 | 新疆特变电工自控设备有限公司 | Permanent magnetic and elastic operation combined mechanism |
| CN109244924A (en) * | 2018-09-20 | 2019-01-18 | 沈阳华德海泰电器有限公司 | A kind of gas insulated combined electrical equipment of band isolation on-load switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |
|
| CX01 | Expiry of patent term |