CN203967735U - A kind of electric capacitor circuit - Google Patents
A kind of electric capacitor circuit Download PDFInfo
- Publication number
- CN203967735U CN203967735U CN201420371286.XU CN201420371286U CN203967735U CN 203967735 U CN203967735 U CN 203967735U CN 201420371286 U CN201420371286 U CN 201420371286U CN 203967735 U CN203967735 U CN 203967735U
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- CN
- China
- Prior art keywords
- circuit
- small resistor
- sleeve pipe
- lead
- electric
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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 - Fee Related
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- Emergency Protection Circuit Devices (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The utility model discloses a kind of electric capacitor circuit, comprise multiple Capacitance parallel connection composition condenser networks; On described each electric capacity, be in series with a fuse; Described condenser network one side is also parallel with discharge resistance; Input and the output of described two lead-in wire sleeve pipe Electricity Federation condenser networks; Between the lead-in wire sleeve pipe of described output and condenser network, fast acting fuse is installed; Described output lead-in wire sleeve pipe below connects discharge circuit one end; The described discharge circuit other end is connected to discharge resistance end.Breaking down in electric capacitor circuit of the present utility model but inside, causes that, when voltage increases severely, the fast acting fuse on output lead sleeve pipe disconnects, and circuit directly imports voltage in ground by the first small resistor; In the time that circuit recovers normal work, due to the effect of the second small resistor, electric energy can not be bypassed in ground, and therefore, circuit is from having reduced to a great extent the possibility of electric capacitor circuit blast.
Description
Technical field
The utility model belongs to field of electrical equipment, particularly a kind of electric capacitor circuit.
Background technology
Electric capacitor circuit is the capacitor for electric power system and electrical equipment.Electric capacitor circuit is in parallel or be composed in series by capacitor element, and any two metallic conductors middlely separate with dielectric, form a capacitor.Existing electric capacitor circuit is made up of condenser network, housing and lead-in wire sleeve pipe.Because electric capacitor inside circuit is full of the liquid such as electrolyte, an one important index is rated insulation voltage, if after voltage overruns, may cause the accidents such as blast, high-temperature medium after blast can fire hazard etc. accident, therefore in existing technology, generally take the duplicate protections such as external circuit protection and internal circuit protection, prevent that it from causing blast because of pressure is excessive; But because capacitor internal is aging, make moist or without electric discharge combined floodgate, three-phase shortcircuit etc. continuously; To cause capacitor blast to damage.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of normal performance of capacitor and electric capacitor circuit of prevent exploding well of not affecting is provided.
The utility model is achieved through the following technical solutions: a kind of electric capacitor circuit, comprises multiple Capacitance parallel connection composition condenser networks; On described each electric capacity, be in series with a fuse; Described condenser network one side is also parallel with discharge resistance; Input and the output of described two lead-in wire sleeve pipe Electricity Federation condenser networks; Between the lead-in wire sleeve pipe of described output and condenser network, fast acting fuse is installed; Described output lead-in wire sleeve pipe below connects discharge circuit one end; The described discharge circuit other end is connected to discharge resistance end.
Further, described discharge circuit is made up of the first small resistor and the second small resistor; Between described first resistance and second largest resistance, earthing device is installed.
Further, described fast acting fuse is external in electric capacity outside; Described the first small resistor and the second small resistor are installed on electric capacity enclosure interior.
Further, described the first small resistor is identical with the second small resistor resistance, and much smaller than discharge resistance.
Further, described earthing device is peripheral to be installed with ground, and it is peripheral by seal sealed insulation.
beneficial effect
Breaking down in electric capacitor circuit of the present utility model but inside, causes that, when voltage increases severely, the fast acting fuse on output lead sleeve pipe disconnects, and circuit directly imports voltage in ground by the first small resistor; In the time that circuit recovers normal work, due to the effect of the second small resistor, electric energy can not be bypassed in ground, and therefore, circuit is from having reduced to a great extent the possibility of electric capacitor circuit blast.
Brief description of the drawings
For ease of explanation, the utility model is described in detail by following specific embodiment and accompanying drawing.
Fig. 1 is overall structure schematic diagram of the present utility model.
Embodiment
As shown in Figure 1, a kind of electric capacitor circuit of the present utility model, comprises that multiple electric capacity c compose in parallel condenser network; On described each electric capacity c, be in series with a fusing re device; Described condenser network one side is also parallel with discharge resistance R; Input and the output of described two lead-in wire sleeve pipe T Electricity Federation condenser networks; Between the lead-in wire sleeve pipe T of described output and condenser network, fast acting fuse rf is installed; Described output lead-in wire sleeve pipe T below connects discharge circuit one end; The described discharge circuit other end is connected to discharge resistance R end.
Wherein, described discharge circuit is made up of the first small resistor R1 and the second small resistor R2; Between described first resistance R 1 and second largest resistance R 2, earthing device D is installed.Described fast acting fuse rf is external in electric capacity outside; Described the first small resistor R1 and the second small resistor R2 are installed on electric capacity enclosure interior.Described the first small resistor R1 is identical with the second small resistor R2 resistance, and much smaller than discharge resistance R.Described earthing device D is peripheral to be installed with ground, and it is peripheral by seal sealed insulation.
Breaking down in electric capacitor circuit of the present utility model but inside, causes that, when voltage increases severely, the fast acting fuse on output lead sleeve pipe disconnects, and circuit directly imports voltage in ground by the first small resistor; In the time that circuit recovers normal work, due to the effect of the second small resistor, electric energy can not be bypassed in ground, and therefore, circuit is from having reduced to a great extent the possibility of electric capacitor circuit blast.
The above, be only embodiment of the present utility model, but protection range of the present utility model is not limited to this, and any variation of expecting without creative work or replacement, within all should being encompassed in protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range that claims were limited.
Claims (4)
1. an electric capacitor circuit, is characterized in that: comprise multiple Capacitance parallel connection composition condenser networks; On described each electric capacity, be in series with a fuse; Described condenser network one side is also parallel with discharge resistance; Input and the output of two lead-in wire sleeve pipe Electricity Federation condenser networks; It is characterized in that, between the lead-in wire sleeve pipe of described output and condenser network, fast acting fuse is installed; Described output lead-in wire sleeve pipe below connects discharge circuit one end; The described discharge circuit other end is connected to discharge resistance end; Described discharge circuit is made up of the first small resistor and the second small resistor; Between described the first small resistor and the second small resistor, earthing device is installed.
2. electric capacitor circuit according to claim 1, is characterized in that: described fast acting fuse is external in electric capacity outside; Described the first small resistor and the second small resistor are installed on electric capacity enclosure interior.
3. electric capacitor circuit according to claim 1, is characterized in that: described the first small resistor is identical with the second small resistor resistance, and much smaller than discharge resistance.
4. electric capacitor circuit according to claim 1, is characterized in that: described earthing device is peripheral to be installed with ground, and it is peripheral by seal sealed insulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420371286.XU CN203967735U (en) | 2014-07-07 | 2014-07-07 | A kind of electric capacitor circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420371286.XU CN203967735U (en) | 2014-07-07 | 2014-07-07 | A kind of electric capacitor circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203967735U true CN203967735U (en) | 2014-11-26 |
Family
ID=51928279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420371286.XU Expired - Fee Related CN203967735U (en) | 2014-07-07 | 2014-07-07 | A kind of electric capacitor circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203967735U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113471937A (en) * | 2021-06-23 | 2021-10-01 | 中国科学院合肥物质科学研究院 | Quick protection circuit suitable for high-power voltage source type converter |
-
2014
- 2014-07-07 CN CN201420371286.XU patent/CN203967735U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113471937A (en) * | 2021-06-23 | 2021-10-01 | 中国科学院合肥物质科学研究院 | Quick protection circuit suitable for high-power voltage source type converter |
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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: 20141126 Termination date: 20150707 |
|
| EXPY | Termination of patent right or utility model |