CN2636464Y - Natural air cooling medium voltage switch cabinet - Google Patents
Natural air cooling medium voltage switch cabinet Download PDFInfo
- Publication number
- CN2636464Y CN2636464Y CN 03271308 CN03271308U CN2636464Y CN 2636464 Y CN2636464 Y CN 2636464Y CN 03271308 CN03271308 CN 03271308 CN 03271308 U CN03271308 U CN 03271308U CN 2636464 Y CN2636464 Y CN 2636464Y
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- Prior art keywords
- circuit breaker
- cabinet
- bus
- contact
- house
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Abstract
The utility model relates to a natural-draft medium-voltage switch cabinet, which comprises a circuit breaker. Wherein, contact arm for each phase of the circuit breaker is increased from one to two, thus realizing six incoming lines and six outgoing lines. An opening is arranged at a front end of a circuit breaker contact box. A lower part of a cabinet (1) is arranged with a surrounding hermetic air passage (14). A clapboard is positioned amongst a cable house (10), a bus-bar house (13) and a back auxiliary cabinet (12). An upper part of a circuit breaker house (8) is provided with a clapboard. Tops of the bus-bar house (13) and the circuit breaker house (8) are provided with a vent hole (15), thus forming a single and effective natural draft passage and favoring heat dissipation of an engaging piece of a static circuit breaker contact and other key parts.
Description
Technical field the utility model relates to a kind of cabinet, particularly a kind of natural air cooled Medium Voltage Switchgear.
The existing Medium Voltage Switchgear of background technology generally adopts air blast cooling, and rated current is 3150A to the maximum.The structure of this Medium Voltage Switchgear as shown in Figure 1, be provided with low pressure cell (5), breaker chamber (8), cable vault (10), bus-bar room (13) and rear secondary cabinet (12) in the inside of cabinet (1), the fixed contact of circuit breaker (6) is positioned within the contact box (7), be connected with (11) with bus (3), bus (11) is drawn outside the cabinet by wall bushing (2), circuit breaker is every a contact arm mutually, the sealing of contact box front end, fan (4) is equipped with at the top that fan (9), breaker chamber (8) and bus-bar room (13) are housed in the bottom of cabinet (1), is used for carrying out air blast cooling.The shortcoming of this switch cubicle is that the maintenance rate of fan is higher, need to have a power failure changes, for the user makes troubles and economically loss.
The summary of the invention the purpose of this utility model provides a kind of natural air cooled Medium Voltage Switchgear, and it need not be provided with fan, has reduced maintenance load and interruption duration, and is easy to use.
The purpose of this utility model is achieved through the following technical solutions: a kind of natural air cooled Medium Voltage Switchgear, be provided with low pressure cell (5) in the inside of cabinet (1), breaker chamber (8), cable vault (10), bus-bar room (13) and rear secondary cabinet (12), the fixed contact of circuit breaker (6) is positioned within the contact box (7), be connected with (11) with bus (3), bus (11) is drawn outside the cabinet by wall bushing (2), it is characterized in that circuit breaker changes two contact arms of every phase into by contact arm of every phase, be provided with the air duct (14) of sealing all around in the bottom of cabinet (1), the dividing plate that sealing is arranged between cable vault (10) and bus-bar room (13) and the rear secondary cabinet (12), dividing plate is arranged at the top of breaker chamber (8), and ventilating opening (15) is arranged at the top of bus-bar room (13) and breaker chamber (8).
In the technique scheme, the front opening of the contact box of circuit breaker (7), making between itself and the fixed contact (6) has the gap (16) that can ventilate.
The principle of technique scheme is, one, because circuit breaker changes two contact arms of every phase into by contact arm of every phase, and advance three with traditional three and go out mode and change six into and advance six and go out, increased area of dissipation, help reducing the temperature at contact of breaker place; Two,, help scattering and disappearing of heat for the key position of temperature rise has designed single natural wind airflow channel.
This airflow channel is made up of the dividing plate on the top of air duct (14), cable vault (10) and the bus-bar room (13) of the bottom of cabinet (1) and the dividing plate between the rear secondary cabinet (12), breaker chamber (8) and the ventilating opening (15) at bus-bar room (13) and breaker chamber (8) top, natural wind enters cable vault (10) from the air duct (14) of cabinet bottom, contact box (7) through arranging down enters breaker chamber, again by last row's
Contact box enters bus-bar room, and two ventilating openings (15) from the top of bus-bar room (13) and breaker chamber (8) flow out at last.Because this passage has bigger height section ratio, windage is little, distinguished and admirable bigger, whole air-cooled stroke is all flowed through, and cabinet is interior easily to generate heat and the position of difficult heat radiation, particularly the engaging piece at the circuit breaker dynamic/static contact has formed good air duct, thereby fall the temperature rise of having controlled in the cabinet effectively, make this cabinet still can operate as normal when big electric current.And traditional switch cubicle is not owing to there is a single airflow channel, distinguished and admirable disorderly and unsystematic in the cabinet, and windage is bigger, has influenced radiating efficiency.
The utility model has the advantages that, one, do not need to be provided with fan, reduced maintenance load and interruption duration, easy to use; Two, owing to solved the heat dissipation problem of big electric current key position, can improve the rated current of switch cubicle.
Description of drawings Fig. 1 is the structural representation of existing air blast cooling switch cubicle.
Fig. 2 is the structural representation of the utility model switch cubicle.
Fig. 3 is the structure chart (sectional view) of the utility model contact of breaker box.
Embodiment is described further the utility model below in conjunction with drawings and Examples.
The said natural air cooled Medium Voltage Switchgear of embodiment, the long 2375mm of cabinet (1), wide 1000mm, high 2050mm, be provided with low pressure cell (5) in the inside of cabinet (1), breaker chamber (8), cable vault (10), bus-bar room (13) and rear secondary cabinet (12), the fixed contact of circuit breaker (6) is positioned within the contact box (7), be connected with (11) with bus (3), bus (11) is drawn outside the cabinet by wall bushing (2), bus is connected to current transformer on (11), contact of breaker changes two contact arms of every phase into by contact arm of every phase, six advance six goes out, the contact box of circuit breaker (7) front opening, and the bigger gap that can ventilate (16) arranged between the fixed contact (6), present embodiment uses the circuit breaker of model as ZN12-12, be provided with the air duct (14) of sealing all around in the bottom of cabinet (1), the dividing plate that sealing is arranged between cable vault (10) and bus-bar room (13) and the rear secondary cabinet (12), dividing plate is arranged at the top of breaker chamber (8), two ventilating openings (15) are arranged respectively at the top of bus-bar room (13) and breaker chamber (8), form single natural wind passage.Through test, the Medium Voltage Switchgear of present embodiment has better heat radiating effect and good electric property, and rated current can reach 4000A, cooperates with the vacuum contactor of Performance Match, can use under the occasion that high-frequencies such as power plant are cut-off.
Claims (2)
1, a kind of natural air cooled Medium Voltage Switchgear, be provided with low pressure cell (5) in the inside of cabinet (1), breaker chamber (8), cable vault (10), bus-bar room (13) and rear secondary cabinet (12), the fixed contact of circuit breaker (6) is positioned within the contact box (7), be connected with (11) with bus (3), bus (11) is drawn outside the cabinet by wall bushing (2), it is characterized in that circuit breaker changes two contact arms of every phase into by contact arm of every phase, be provided with the air duct (14) of sealing all around in the bottom of cabinet (1), the dividing plate that sealing is arranged between cable vault (10) and bus-bar room (13) and the rear secondary cabinet (12), dividing plate is arranged at the top of breaker chamber (8), and ventilating opening (15) is arranged at the top of bus-bar room (13) and breaker chamber (8).
2, Medium Voltage Switchgear according to claim 1 is characterized in that the front opening of the contact box (7) of said circuit breaker, and making between itself and the fixed contact (6) has the gap (16) that can ventilate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03271308 CN2636464Y (en) | 2003-07-23 | 2003-07-23 | Natural air cooling medium voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03271308 CN2636464Y (en) | 2003-07-23 | 2003-07-23 | Natural air cooling medium voltage switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2636464Y true CN2636464Y (en) | 2004-08-25 |
Family
ID=34300666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03271308 Expired - Fee Related CN2636464Y (en) | 2003-07-23 | 2003-07-23 | Natural air cooling medium voltage switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2636464Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101794968B (en) * | 2009-12-10 | 2012-03-21 | 成都通力集团股份有限公司 | Double-pole isolating switch cabinet for outdoor direct current 1500 V contact net system |
| CN101636889B (en) * | 2007-04-26 | 2012-07-04 | 三菱电机株式会社 | Metal closed type switch gear |
| CN101682178B (en) * | 2007-06-25 | 2013-01-02 | 三菱电机株式会社 | Metal-closed switch gear |
| CN103681021A (en) * | 2012-08-31 | 2014-03-26 | 施耐德电器工业公司 | Air cooling structure for circuit breaker |
| CN107453269A (en) * | 2017-08-23 | 2017-12-08 | 中科电力装备集团有限公司 | A kind of tri-station isolating switch and breaker |
| CN110311337A (en) * | 2018-03-27 | 2019-10-08 | 国网河南省电力公司登封市供电公司 | A kind of enclosed bus bridge |
| CN111181057A (en) * | 2020-03-13 | 2020-05-19 | 国网吉林省电力有限公司辽源供电公司 | Put cabinet in that cooling radiating effect is good |
-
2003
- 2003-07-23 CN CN 03271308 patent/CN2636464Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101636889B (en) * | 2007-04-26 | 2012-07-04 | 三菱电机株式会社 | Metal closed type switch gear |
| CN101682178B (en) * | 2007-06-25 | 2013-01-02 | 三菱电机株式会社 | Metal-closed switch gear |
| CN101794968B (en) * | 2009-12-10 | 2012-03-21 | 成都通力集团股份有限公司 | Double-pole isolating switch cabinet for outdoor direct current 1500 V contact net system |
| CN103681021A (en) * | 2012-08-31 | 2014-03-26 | 施耐德电器工业公司 | Air cooling structure for circuit breaker |
| CN103681021B (en) * | 2012-08-31 | 2016-03-02 | 施耐德电器工业公司 | For the air-cooled structure of circuit breaker |
| CN107453269A (en) * | 2017-08-23 | 2017-12-08 | 中科电力装备集团有限公司 | A kind of tri-station isolating switch and breaker |
| CN110311337A (en) * | 2018-03-27 | 2019-10-08 | 国网河南省电力公司登封市供电公司 | A kind of enclosed bus bridge |
| CN111181057A (en) * | 2020-03-13 | 2020-05-19 | 国网吉林省电力有限公司辽源供电公司 | Put cabinet in that cooling radiating effect is good |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |