CN203325713U - Power capacitor - Google Patents
Power capacitor Download PDFInfo
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- CN203325713U CN203325713U CN2013203136396U CN201320313639U CN203325713U CN 203325713 U CN203325713 U CN 203325713U CN 2013203136396 U CN2013203136396 U CN 2013203136396U CN 201320313639 U CN201320313639 U CN 201320313639U CN 203325713 U CN203325713 U CN 203325713U
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- power capacitor
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Abstract
The utility model discloses a power capacitor, which comprises a lead bushing, a liquid medium, an inner fuse, a capacitor element, a casing shell, a discharge resistor and a housing. The lead bushing, the liquid medium, the inner fuse, the capacitor element, the casing shell and the discharge resistor are all arranged in the cavity of the housing. An explosion-proof valve is arranged on the casing shell. According to the technical scheme of the utility model, due to the adoption of the explosion-proof type power capacitor provided by the utility model, the traditional requirements on power capacitors can be met. Meanwhile, even when the pressure inside the power capacitor increases suddenly due to an internal fault so as to cause the internal and external failure protection, the pressure inside the power capacitor can also be released quickly. Therefore, the power capacitor is prevented from exploding and getting fire.
Description
Technical field
The utility model relates to the electric equipment field, relates in particular to a kind of power capacitor.
Background technology
Power capacitor is the capacitor for electric power system and electrical equipment.Power capacitor is in parallel or be composed in series by capacitor element, and any two metallic conductors middlely separate with dielectric, form a capacitor.
Referring to Fig. 1, in Fig. 1, lead-in wire sleeve pipe 1, liquid medium 2, internal fuse 3, capacity cell 4, cabinet shell 5, discharge resistance 6 form traditional power capacitor.
Because traditional power capacitor adopts enclosed construction, inside is full of liquid medium, when internal wetted, temperature exceeding standard occur, without electric discharge continuously during the catastrophe failure such as combined floodgate, three-phase shortcircuit, internal current increases, cause the liquid medium gasification, internal gas pressure increases, and leakage of oil or bulge phenomenon occur the lighter, severe one can set off an explosion, catch fire, and very easily causes near the equipment of fault power capacitor to be damaged.
The utility model content
In view of this, the utility model provides a kind of power capacitor, the deficiency of in order to overcome traditional power capacitor, easily blasting, catching fire when the fault.
A kind of power capacitor, comprise lead-in wire sleeve pipe, liquid medium, internal fuse, capacity cell, cabinet shell, discharge resistance, also comprises:
Shell, described lead-in wire sleeve pipe, liquid medium, internal fuse, capacity cell, cabinet shell, discharge resistance are placed in described shell;
Be arranged at the explosion-proof valve on described cabinet shell.
Preferably, in above-mentioned power capacitor, described shell comprises housing and shell upper cover, and described shell upper cover is fixed by bolt and described housing.
Preferably, in above-mentioned power capacitor, also comprise:
Be arranged on described outer casing inner wall the support of fixing described cabinet shell.
Preferably, in above-mentioned power capacitor, on the shell wall of described shell, be provided with observation window.
Preferably, in above-mentioned power capacitor, described observation window is arranged on the shell wall of described shell below.
The utility model provides a kind of power capacitor of explosion-proof type; this power capacitor can not only meet the requirement of electrical network to the conventional electric power capacitor; and can be when power capacitor internal fault pressure jump; inside and outside is protected in malfunctioning situation; discharge rapidly the pressure of power capacitor inside, do not occur power capacitor blast, catch fire.Simultaneously, can also avoid the bulge phenomenon of power capacitor, secondary fault occurs in the miscellaneous equipment of stopping in fault coverage, in addition, has also alleviated the equipment filth degree that the liquid medium seepage forms, and affects apparatus insulated and clean appearance.
The accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of traditional power capacitor that Fig. 1 provides for the utility model;
A kind of structural representation of the power capacitor that Fig. 2 provides for the utility model embodiment;
Another structural representation of the power capacitor that Fig. 3 provides for the utility model embodiment;
Another structural representation of the power capacitor that Fig. 4 provides for the utility model embodiment;
Another structural representation of the power capacitor that Fig. 5 provides for the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making under the creative work prerequisite the every other embodiment obtained, and all belong to the scope of the utility model protection.
Referring to Fig. 2, the utility model embodiment provides a kind of power capacitor, comprises lead-in wire sleeve pipe 1, liquid medium 2, internal fuse 3, capacity cell 4, cabinet shell 5, discharge resistance 6, also comprises:
Shell 7, lead-in wire sleeve pipe 1, liquid medium 2, internal fuse 3, capacity cell 4, cabinet shell 5, discharge resistance 6 all are placed in the shell chamber of shell 7;
Be arranged at the explosion-proof valve 8 on cabinet shell 5.
In Fig. 2, lead-in wire sleeve pipe 1, liquid medium 2, internal fuse 3, capacity cell 4, cabinet shell 5, discharge resistance 6 form traditional power capacitor.Shell 7 is set outside the conventional electric power capacitor, the conventional electric power capacitor is put into to shell 7, and mineralization pressure release jacket coating between shell and conventional electric power capacitor, be provided with explosion-proof valve 8 on cabinet shell 5, when power capacitor internal fault pressure jump, explosion-proof valve 8 actions, in case, liquid, admixture of gas ejection, enter the earth pressure release interlayer, with air insulated, avoided cabinet shell cracking blast and on fire, after the power capacitor internal pressure is recovered normally, explosion-proof valve 8 is closed.
It should be noted that, the quantity of explosion-proof valve can be set according to actual needs, at this, do not do restriction, in addition, can explosion-proof valve be set the optional position on cabinet shell 5, preferred, on the top of cabinet shell 5, explosion-proof valve is set.
The utility model provides a kind of power capacitor of explosion-proof type; this power capacitor can not only meet the requirement of electrical network to the conventional electric power capacitor; and can be when power capacitor internal fault pressure jump; inside and outside is protected in malfunctioning situation; discharge rapidly the pressure of power capacitor inside, do not occur power capacitor blast, catch fire.Simultaneously, can also avoid the bulge phenomenon of power capacitor, secondary fault occurs in the miscellaneous equipment of stopping in fault coverage, in addition, has also alleviated the equipment filth degree that the liquid medium seepage forms, and affects apparatus insulated and clean appearance.
Referring to Fig. 3, the utility model embodiment provides the structural representation of another power capacitor, comprises lead-in wire sleeve pipe 1, liquid medium 2, internal fuse 3, capacity cell 4, cabinet shell 5, discharge resistance 6, also comprises:
Shell 7, lead-in wire sleeve pipe 1, liquid medium 2, internal fuse 3, capacity cell 4, cabinet shell 5, discharge resistance 6 all are placed in the shell chamber of shell 7;
Be arranged at the explosion-proof valve 8 on cabinet shell 5.
Lead-in wire sleeve pipe 1, liquid medium 2, internal fuse 3, capacity cell 4, cabinet shell 5, discharge resistance 6 form traditional power capacitor.Shell 7 is set outside the conventional electric power capacitor, the conventional electric power capacitor is put into to shell 7, and mineralization pressure release jacket coating between shell and conventional electric power capacitor, be provided with explosion-proof valve 8 on cabinet shell 5, when power capacitor internal fault pressure jump, explosion-proof valve 8 actions, in case, liquid, admixture of gas ejection, enter the earth pressure release interlayer, with air insulated, avoided cabinet shell cracking blast and on fire, after the power capacitor internal pressure is recovered normally, explosion-proof valve 8 is closed.
Different from above-mentioned power capacitor, the shell of the power capacitor that the utility model embodiment provides comprises housing 71 and shell upper cover 72, and shell upper cover 72 is fixing with housing 72 by bolt 9.
When power capacitor internal fault pressure jump, the explosion-proof valve action, in case, liquid, admixture of gas ejection, enter the earth pressure release interlayer, and after the power capacitor internal pressure is recovered normally, safety valve cuts out.Enter liquid after the earth pressure release interlayer, admixture of gas cooling after, be stored in earth pressure release interlayer bottom, shell 7 is divided into dismountable housing 71 can clear up with shell upper cover 72 cooled liquid, the admixture of gas that is stored in earth pressure release interlayer bottom easily.
Referring to Fig. 4, the utility model embodiment provides the structural representation of another power capacitor, comprises lead-in wire sleeve pipe 1, liquid medium 2, internal fuse 3, capacity cell 4, cabinet shell 5, discharge resistance 6, also comprises:
Shell 7, lead-in wire sleeve pipe 1, liquid medium 2, internal fuse 3, capacity cell 4, cabinet shell 5, discharge resistance 6 all are placed in the shell chamber of shell 7;
Be arranged at the explosion-proof valve 8 on cabinet shell 5.
Lead-in wire sleeve pipe 1, liquid medium 2, internal fuse 3, capacity cell 4, cabinet shell 5, discharge resistance 6 form traditional power capacitor.Shell 7 is set outside the conventional electric power capacitor, the conventional electric power capacitor is put into to shell 7, and mineralization pressure release jacket coating between shell and conventional electric power capacitor, be provided with explosion-proof valve 8 on cabinet shell 5, when power capacitor internal fault pressure jump, explosion-proof valve 8 actions, in case, liquid, admixture of gas ejection, enter the earth pressure release interlayer, with air insulated, avoided cabinet shell cracking blast and on fire, after the power capacitor internal pressure is recovered normally, explosion-proof valve 8 is closed.
Different from above-mentioned power capacitor, the power capacitor that the utility model embodiment provides also comprises and being arranged on outer casing inner wall, the support 10 of static housing shell.Support 10 can be weldingly fixed on the inwall of power capacitor cabinet shell.In the middle of support 10, air vent hole can be set, make whole earth pressure release layer UNICOM, the earth pressure release valve events of which side in power capacitor no matter, the earth pressure release layer has enough earth pressure release spaces.
When power capacitor internal fault pressure jump, during the explosion-proof valve action, power capacitor may produce and rock because of the action of explosion-proof valve, make the components and parts cisco unity malfunction of power capacitor inside, therefore on the inwall of shell, support is set, for the static housing shell, so just can make when explosion-proof valve moves, the device in power capacitor can be worked normally.
It should be noted that, can quantity and the position of support be set according to actual conditions, at this, do not do and repeat.
Referring to Fig. 5, the utility model embodiment provides the structural representation of another power capacitor, comprises lead-in wire sleeve pipe 1, liquid medium 2, internal fuse 3, capacity cell 4, cabinet shell 5, discharge resistance 6, also comprises:
Shell 7, lead-in wire sleeve pipe 1, liquid medium 2, internal fuse 3, capacity cell 4, cabinet shell 5, discharge resistance 6 all are placed in the shell chamber of shell 7;
Be arranged at the explosion-proof valve 8 on cabinet shell 5.
Lead-in wire sleeve pipe 1, liquid medium 2, internal fuse 3, capacity cell 4, cabinet shell 5, discharge resistance 6 form traditional power capacitor.Shell 7 is set outside the conventional electric power capacitor, the conventional electric power capacitor is put into to shell 7, and mineralization pressure release jacket coating between shell and conventional electric power capacitor, be provided with explosion-proof valve 8 on cabinet shell 5, when power capacitor internal fault pressure jump, explosion-proof valve 8 actions, in case, liquid, admixture of gas ejection, enter the earth pressure release interlayer, with air insulated, avoided cabinet shell cracking blast and on fire, after the power capacitor internal pressure is recovered normally, explosion-proof valve 8 is closed.
Different from above-mentioned power capacitor, be provided with observation window 11 on the shell wall of power capacitor shell in the utility model embodiment.
When power capacitor internal fault pressure jump, the explosion-proof valve action, in case, liquid, admixture of gas ejection, enter the earth pressure release interlayer, and after the power capacitor internal pressure is recovered normally, safety valve cuts out.Enter liquid after the earth pressure release interlayer, admixture of gas cooling after, be stored in earth pressure release interlayer bottom, observe whether in earth pressure release interlayer bottom, store mixture for the ease of personnel, grasp power capacitor ruuning situation, can on the shell wall of shell, observation window be set.Preferably, observation window is arranged on the shell wall of shell below.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment that between each embodiment, identical similar part is mutually referring to getting final product.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.Multiple modification to these embodiment will be apparent for those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from spirit or scope of the present utility model, realization in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (5)
1. a power capacitor, comprise lead-in wire sleeve pipe, liquid medium, internal fuse, capacity cell, cabinet shell, discharge resistance, it is characterized in that, also comprises:
Shell, described lead-in wire sleeve pipe, liquid medium, internal fuse, capacity cell, cabinet shell, discharge resistance all are placed in the shell chamber of described shell;
Be arranged at the explosion-proof valve on described cabinet shell.
2. power capacitor according to claim 1, is characterized in that, described shell comprises housing and shell upper cover, and described shell upper cover is fixed by bolt and described housing.
3. power capacitor according to claim 1, is characterized in that, also comprises:
Be arranged on described outer casing inner wall the support of fixing described cabinet shell.
4. power capacitor according to claim 1, is characterized in that, on the shell wall of described shell, is provided with observation window.
5. power capacitor according to claim 4, is characterized in that, described observation window is arranged on the shell wall of described shell below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203136396U CN203325713U (en) | 2013-05-31 | 2013-05-31 | Power capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203136396U CN203325713U (en) | 2013-05-31 | 2013-05-31 | Power capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203325713U true CN203325713U (en) | 2013-12-04 |
Family
ID=49665026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203136396U Expired - Lifetime CN203325713U (en) | 2013-05-31 | 2013-05-31 | Power capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203325713U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108615607A (en) * | 2018-04-04 | 2018-10-02 | 上海广吉电气有限公司 | Insulator fuse type high voltage capacitor |
-
2013
- 2013-05-31 CN CN2013203136396U patent/CN203325713U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108615607A (en) * | 2018-04-04 | 2018-10-02 | 上海广吉电气有限公司 | Insulator fuse type high voltage capacitor |
| CN108615607B (en) * | 2018-04-04 | 2020-06-12 | 上海广吉电气有限公司 | Insulator fuse type high voltage-resistant capacitor |
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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: 20131204 |
|
| CX01 | Expiry of patent term |