CN203180421U - Single-chamber environment-friendly gas-insulated metal-enclosed switchgear - Google Patents
Single-chamber environment-friendly gas-insulated metal-enclosed switchgear Download PDFInfo
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- CN203180421U CN203180421U CN 201320219258 CN201320219258U CN203180421U CN 203180421 U CN203180421 U CN 203180421U CN 201320219258 CN201320219258 CN 201320219258 CN 201320219258 U CN201320219258 U CN 201320219258U CN 203180421 U CN203180421 U CN 203180421U
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- China
- Prior art keywords
- circuit breaker
- station
- gas tank
- breaker
- vacuum circuit
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Abstract
The utility model discloses a single-chamber environment-friendly gas-insulated metal-enclosed switchgear. The switchgear comprises a circuit breaker and a bus gas chamber which is filled by nitrogen or nitrogen mixture. The circuit breaker and bus gas chamber is internally provided with a three-position switch, a main bus/connecting sleeve and a vacuum circuit breaker. The main bus/connecting sleeve is arranged above the three-position switch, the vacuum circuit breaker is arranged under the three-position switch, a close contact of the three-position switch is connected with a main bus of the main bus/connecting sleeve, and a cantilever connecting piece of the three-position switch is connected with the vacuum circuit breaker. The switchgear provided by the utility model has the advantages of simple structure, low cost, environment friendship, small land occupation, high environment adaptability, little needs on maintenance, and quick installation.
Description
Technical field
The utility model relates to switchgear, specifically refers to single box environmental-protective gas-insulating metal enclosed switchgear.
Background technology
Traditional high voltage switchgear, general high-tension line is exposed in the air, part adopts sulfur hexafluoride gas to isolate, and sulfur hexafluoride gas is greenhouse gas, its greenhouse effect are more than 6 times of carbon dioxide, can increase the weight of the atmosphere greenhouse effect in case take place to leak therefore, therefore existing high voltage switchgear exists 2 problems, dangerous and not environmental protection; In addition, existing high voltage switchgear complex structure, floor space is big, and installation process is also corresponding complicated, and assembling cycle is longer.
The utility model content
The purpose of this utility model is to provide single box environmental-protective gas-insulating metal enclosed switchgear, and this apparatus structure is simple, and cost is low, its environmental protection, floor space is little, environmental suitability is strong, safeguard less, quick for installation.
Implementation of the present utility model is as follows: single box environmental-protective gas-insulating metal enclosed switchgear, comprise the circuit breaker and the bus gas tank that are filled with nitrogen or nitrogen mixture, be provided with three-station, main bus bar and joint sleeve, vacuum circuit-breaker in described circuit breaker and the bus gas tank, described main bus bar and joint sleeve are positioned at the three-station top, vacuum circuit-breaker is positioned at the three-station below, the closing contact of three-station is connected with the main bus bar of main bus bar and joint sleeve, and the cantilever connector of three-station is connected with vacuum circuit-breaker.
Each electric apparatus room of arranging in the manner described above, can make that whole switchgear is compacter, floor space is little, employing is filled with the gas tank of nitrogen or nitrogen mixture as circuit breaker and bus gas tank, wherein circuit breaker and bus all are laid in this gas tank, make the line between circuit breaker and the bus not have obstacle, therefore the annexation of the minimizing that can try one's best between them, simplify installation method, vacuum circuit-breaker has following function: 1, the folding rated current, 2, the folding fault current, 3, cooperate three-station to realize the cable grounding function, wherein the pole of vacuum circuit-breaker is vertically mounted in this gas tank or level is installed in the gas tank, and the mechanical operating mechanism of control vacuum circuit-breaker all places this gas tank outside, so that safeguard.Three-station has 3 service positions, is respectively: 1, connect main bus bar and joint sleeve position, be called for short closing position; 2, the isolated location is called for short in the position that isolates with bus; 3, be connected to grounding contact, the contact earthing position.Above-mentioned 3 service positions are very clear and definite on the operating mechanism of three-station, isolated location, moving contact move to the two ends extreme position under the driving of insulation blanket stud during the centre position, each fixed contact of two ends, be respectively and close a floodgate and earthing position, when therefore needing, can cancel ground connection, become isolating switch, the cantilever connector is moving contact.The earthing position of three-station is only realized connecting of major loop and grounded circuit, the real ground connection of cable loop is then closed a floodgate by vacuum circuit-breaker and is bent, there are machinery and electrical interlock between the operating mechanism of three-station and the operating mechanism of vacuum circuit-breaker, only when the vacuum circuit-breaker gate-dividing state, just can be operated to earthing position, main bus bar and joint sleeve are exported station as power supply.
Further, for the high-voltage power-line that induces one, also comprise the cable vault, be provided with turnover line cable in the cable vault and be sleeved on current transformer on the turnover line outside diameter of cable face, turnover line cable extends into circuit breaker and bus gas tank away from the end on ground and is connected with the voltage input end of vacuum circuit-breaker.General high-voltage power-line is entered by the ground direction in the device of the utility model design, and therefore preferred cable vault is positioned at circuit breaker and bus gas tank below.
Preferably, leak in order to prevent the gas in circuit breaker and the bus gas tank, the turnover line outside diameter of cable also is arranged with outer bevel-type cable sleeve, and outer bevel-type cable sleeve is installed on the handing-over wall of circuit breaker and bus gas tank and cable vault.Outer bevel-type cable sleeve is as connector, thereby guarantees that link position is sealing state.
Described cable vault is positioned at circuit breaker and bus gas tank below.
In order to control hollow circuit breaker and three-station, the utility model also comprises the low voltage control chamber, indoor vacuum circuit breaker operating mechanism and the three-station operating mechanism of being equipped with of described low voltage control, vacuum circuit breaker operating mechanism is positioned at three-station operating mechanism below, and vacuum circuit breaker operating mechanism is connected with vacuum circuit-breaker, and the three-station operating mechanism is connected with three-station.Vacuum circuit breaker operating mechanism and three-station operating mechanism are configured in external environment condition and make things convenient for manual operation and maintenance.
In order to save installing space, make the entire equipment compactness, avoid vacuum circuit breaker operating mechanism and vacuum circuit-breaker link position far away excessively, be positioned at the three-station operating mechanism and the three-station link position is far away excessively, described low voltage control chamber is positioned at the top, cable vault.The low voltage control chamber is in close proximity to circuit breaker and indoor protection control unit and the gas tank gas detection valve of also being equipped with of bus gas tank low voltage control, and described gas tank gas detects valve and circuit breaker and bus gas tank internal communication.The protection control unit is gathered the information of each position, can control vacuum circuit breaker operating mechanism and the three-station operating mechanism moves automatically.Gas tank gas detects valve for detection of the gas atmosphere in circuit breaker and the bus gas tank.
In the time of need safeguarding, circuit breaker and bus gas tank also are provided with the gas tank pressure relief opening.Before maintenance, need the processing of losing heart, therefore also be furnished with the gas tank pressure relief opening.
Advantage of the present utility model is: this apparatus structure is simple, and cost is low, its environmental protection, floor space is little, environmental suitability is strong, safeguard less, quick for installation.
Description of drawings
Fig. 1 is the utility model structural representation.
Sign among the figure is expressed as respectively: 1, low voltage control chamber; 2, protection control unit; 3, vacuum circuit breaker operating mechanism; 4, vacuum circuit-breaker; 5, control room door; 6, gas tank gas detects valve; 7, circuit breaker and bus gas tank; 8, three-station operating mechanism; 10, three-station; 11, main bus bar and joint sleeve; 13, front shroud; 14, cabinet body frame; 16, gas tank pressure relief opening; 18, branch bus; 21, turnover line cable; 22, current transformer; 25, outer bevel-type cable sleeve.
Embodiment
Embodiment one
As shown in Figure 1.
Single box environmental-protective gas-insulating metal enclosed switchgear, comprise the circuit breaker and the bus gas tank 7 that are filled with nitrogen or nitrogen mixture, be provided with three-station 10, main bus bar and joint sleeve 11, vacuum circuit-breaker 4 in described circuit breaker and the bus gas tank 7, described main bus bar and joint sleeve 11 are positioned at three-station 10 tops, vacuum circuit-breaker 4 is positioned at three-station 10 belows, the closing contact of three-station 10 is connected with the main bus bar of main bus bar and joint sleeve 11, and the cantilever connector of three-station 10 is connected with vacuum circuit-breaker 4.
Each electric apparatus room of arranging in the manner described above, can make that whole switchgear is compacter, floor space is little, employing is filled with the gas tank of nitrogen or nitrogen mixture as circuit breaker and bus gas tank 7, wherein circuit breaker and bus all are laid in this gas tank, make the line between circuit breaker and the bus not have obstacle, therefore the annexation of the minimizing that can try one's best between them, simplify installation method, vacuum circuit-breaker 4 has following function: 1, the folding rated current, 2, the folding fault current, 3, cooperate three-station to realize the cable grounding function, wherein the pole of vacuum circuit-breaker is vertically mounted in this gas tank or level is installed in the gas tank, and the mechanical operating mechanism of control vacuum circuit-breaker all places this gas tank outside, so that safeguard.Three-station 10 has 3 service positions, is respectively: 1, connect main bus bar and joint sleeve position, be called for short closing position; 2, the isolated location is called for short in the position that isolates with bus; 3, be connected to grounding contact, the contact earthing position.Above-mentioned 3 service positions are very clear and definite on the operating mechanism of three-station, isolated location, moving contact move to the two ends extreme position under the driving of insulation blanket stud during the centre position, each fixed contact of two ends, be respectively and close a floodgate and earthing position, when therefore needing, can cancel ground connection, become isolating switch, the cantilever connector is moving contact.The earthing position of three-station is only realized connecting of major loop and grounded circuit, the real ground connection of cable loop is then closed a floodgate by vacuum circuit-breaker and is bent, there are machinery and electrical interlock between the operating mechanism of three-station and the operating mechanism of vacuum circuit-breaker, only when the vacuum circuit-breaker gate-dividing state, just can be operated to earthing position, main bus bar and joint sleeve 11 are as power supply output station.
Further, for the high-voltage power-line that induces one, also comprise the cable vault, be provided with turnover line cable 21 in the cable vault and be sleeved on current transformer 22 on the turnover line cable 21 outer diametric planes, pass in and out line cable 21 and extend into circuit breaker and bus gas tank 7 away from the end on ground and be connected with the voltage input end of vacuum circuit-breaker 4.General high-voltage power-line is entered by the ground direction in the device of the utility model design, and therefore preferred cable vault is positioned at circuit breaker and bus gas tank 7 belows.
Preferably, leak in order to prevent the gas in circuit breaker and the bus gas tank 7, turnover line cable 21 external diameters also are arranged with outer bevel-type cable sleeve 25, and outer bevel-type cable sleeve is installed on the handing-over wall of circuit breaker and bus gas tank 7 and cable vault.Outer bevel-type cable sleeve 25 is as connector, thereby guarantees that link position is sealing state.
Described cable vault is positioned at circuit breaker and bus gas tank 7 belows.
In order to control hollow circuit breaker and three-station, the utility model also comprises low voltage control chamber 1, vacuum circuit breaker operating mechanism 3 and three-station operating mechanism 8 are installed in the described low voltage control chamber 1, vacuum circuit breaker operating mechanism 3 is positioned at three-station operating mechanism 8 belows, and vacuum circuit breaker operating mechanism 3 is connected with vacuum circuit-breaker, and three-station operating mechanism 8 is connected with three-station.Vacuum circuit breaker operating mechanism 3 and three-station operating mechanism 8 are configured in external environment condition and make things convenient for manual operation and maintenance.
In order to save installing space, make the entire equipment compactness, avoid vacuum circuit breaker operating mechanism 3 and vacuum circuit-breaker link position far away excessively, it is far away excessively with the three-station link position to be positioned at three-station operating mechanism 8, and described low voltage control chamber 1 is positioned at the top, cable vault.Low voltage control chamber 1 is in close proximity to circuit breaker and bus gas tank 7
In the time of need safeguarding, circuit breaker and bus gas tank 7 also are provided with gas tank pressure relief opening 16.Before maintenance, need the processing of losing heart, therefore also be furnished with gas tank pressure relief opening 16.
As mentioned above, then can well realize the utility model.
Claims (8)
1. single box environmental-protective gas-insulating metal enclosed switchgear, it is characterized in that: comprise the circuit breaker and the bus gas tank (7) that are filled with nitrogen or nitrogen mixture, be provided with three-station (10) in described circuit breaker and the bus gas tank (7), main bus bar and joint sleeve (11), vacuum circuit-breaker (4), described main bus bar and joint sleeve (11) are positioned at three-station (10) top, vacuum circuit-breaker (4) is positioned at three-station (10) below, the closing contact of three-station (10) is connected with the main bus bar of main bus bar and joint sleeve (11), and the cantilever connector of three-station (10) is connected with vacuum circuit-breaker (4).
2. single box environmental-protective gas-insulating metal enclosed switchgear according to claim 1, it is characterized in that: also comprise the cable vault, be provided with turnover line cable (21) in the cable vault and be sleeved on current transformer (22) on turnover line cable (21) the outer diametric plane, pass in and out line cable (21) and extend into circuit breaker and bus gas tank (7) away from the end on ground and be connected with the voltage input end of vacuum circuit-breaker (4).
3. single box environmental-protective gas-insulating metal enclosed switchgear according to claim 2, it is characterized in that: turnover line cable (21) external diameter also is arranged with outer bevel-type cable sleeve (25), and outer bevel-type cable sleeve is installed on the handing-over wall of circuit breaker and bus gas tank (7) and cable vault.
4. single box environmental-protective gas-insulating metal enclosed switchgear according to claim 2 is characterized in that: described cable vault is positioned at circuit breaker and bus gas tank (7) below.
5. single box environmental-protective gas-insulating metal enclosed switchgear according to claim 2, it is characterized in that: also comprise low voltage control chamber (1), vacuum circuit breaker operating mechanism (3) and three-station operating mechanism (8) are installed in the described low voltage control chamber (1), vacuum circuit breaker operating mechanism (3) is positioned at three-station operating mechanism (8) below, and vacuum circuit breaker operating mechanism (3) is connected with vacuum circuit-breaker, and three-station operating mechanism (8) is connected with three-station.
6. single box environmental-protective gas-insulating metal enclosed switchgear according to claim 5 is characterized in that: described low voltage control chamber (1) is positioned at the top, cable vault.
7. single box environmental-protective gas-insulating metal enclosed switchgear according to claim 5; it is characterized in that: protection control unit (2) and gas tank gas also are installed in low voltage control chamber (1) detect valve (6), described gas tank gas detects valve and circuit breaker and bus gas tank (7) internal communication.
8. according to any described single box environmental-protective gas-insulating metal enclosed switchgear among the claim 1-7, it is characterized in that: circuit breaker and bus gas tank (7) also are provided with gas tank pressure relief opening (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320219258 CN203180421U (en) | 2013-04-26 | 2013-04-26 | Single-chamber environment-friendly gas-insulated metal-enclosed switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320219258 CN203180421U (en) | 2013-04-26 | 2013-04-26 | Single-chamber environment-friendly gas-insulated metal-enclosed switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203180421U true CN203180421U (en) | 2013-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320219258 Expired - Fee Related CN203180421U (en) | 2013-04-26 | 2013-04-26 | Single-chamber environment-friendly gas-insulated metal-enclosed switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203180421U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329381A (en) * | 2016-10-20 | 2017-01-11 | 莱福士电力电子设备（深圳）有限公司 | Ring main unit |
| CN106953262A (en) * | 2017-03-01 | 2017-07-14 | 珠海康晋电气有限公司 | A kind of gas insulated switchgear system |
-
2013
- 2013-04-26 CN CN 201320219258 patent/CN203180421U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329381A (en) * | 2016-10-20 | 2017-01-11 | 莱福士电力电子设备（深圳）有限公司 | Ring main unit |
| CN106953262A (en) * | 2017-03-01 | 2017-07-14 | 珠海康晋电气有限公司 | A kind of gas insulated switchgear system |
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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: 20130904 Termination date: 20210426 |
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| CF01 | Termination of patent right due to non-payment of annual fee |