CN212341285U - Capacitor tower for synthesis test - Google Patents
Capacitor tower for synthesis test Download PDFInfo
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- CN212341285U CN212341285U CN202021652898.8U CN202021652898U CN212341285U CN 212341285 U CN212341285 U CN 212341285U CN 202021652898 U CN202021652898 U CN 202021652898U CN 212341285 U CN212341285 U CN 212341285U
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Abstract
The utility model discloses a synthetic test condenser tower in the electrical property test equipment technical field, include: a base; a plurality of superposes the tower layer on the base in proper order, and each tower layer all includes: an inner frame; a capacitor bank including a plurality of capacitors; an outer frame surrounding the capacitor bank; one end of the fling-cut switch is electrically connected with the external frame, and the other end of the fling-cut switch is electrically connected with the anodes of the capacitors; the interlayer series switch is used for connecting the external frame of any tower layer with the internal frame of the tower layer above the external frame; and the high-voltage output end is electrically connected with the external frame of the top tower layer. The capacitor tower is low in cost and convenient to maintain.
Description
Technical Field
The utility model relates to an electrical property test equipment technical field, in particular to synthetic test condenser tower.
Background
With the trend development of modern power grids towards high voltage and large capacity, the function of a high-voltage circuit breaker for providing safety guarantee for the power grids is increasingly improved. In power generation, power transmission and transformation and distribution equipment of a power system, various short circuits may occur, and a breaker is required to rapidly remove a fault when the short circuit occurs, so that huge loss is avoided. Since the reliability of the whole system is very high when the power system is operated in real time, the high-voltage circuit breaker must be checked and certified for the performance of the corresponding parameters before being put into operation. The current technological development level is not perfect, the on-off process of the high-voltage circuit breaker and some related problems are very complicated, and the circuit breaker meeting various on-off performances and other requirements cannot be designed completely by means of theoretical analysis and quantitative calculation methods. Therefore, the development of high-voltage electric appliance products must provide information and experience through type tests and preventive tests, and finally, whether the high-voltage electric appliance products can be sized and produced or not is identified through the tests. Therefore, it is very important to accurately and reliably test various on-off performances of the high-voltage circuit breaker through the test system before the high-voltage circuit breaker is produced and put into operation.
There are many methods for verifying the breaking performance of a high-voltage circuit breaker, wherein a direct test is a short-circuit test method, and the external test current, voltage, transient state and power frequency recovery voltage are all provided by a power supply loop. The direct test method comprises a network test method and a direct current generator test method, wherein a power supply of the network test method is directly provided by a test station for power distribution, and the test method is high in test cost, can generate high-power short circuit impact and has influence on the stability of a power grid; the direct current generator test method is powered by a large-capacity generator set, so that the investment is huge, the maintenance is difficult, and the test times and the capacity are greatly limited.
SUMMERY OF THE UTILITY MODEL
The synthetic test capacitor tower solves the problems of large investment, difficult maintenance and the like in a conventional test method, so that the test cost is reduced, and the synthetic test capacitor tower is convenient to maintain.
The embodiment of the application provides a synthetic test capacitor tower, includes:
a base;
a plurality of tower layer, a plurality of the tower layer superpose in proper order in on the base, each tower layer all includes:
an inner frame;
the capacitor bank comprises a plurality of capacitors, the capacitors are distributed on two sides of the internal frame, and the negative electrode of each capacitor is electrically connected with the internal frame;
an outer frame surrounding the capacitor bank;
one end of each fling-cut switch is electrically connected with the external frame, and the other end of each fling-cut switch is electrically connected with the positive electrodes of the capacitors;
the interlayer series switch is arranged between any one of the tower layers and the tower layer above the tower layer, and is used for connecting the external frame of the lower tower layer with the internal frame of the upper tower layer;
and the high-voltage output end is arranged above the tower layer and is electrically connected with the external frame of the tower layer on the top layer.
The beneficial effects of the above embodiment are as follows: the capacitor tower for the synthetic test adopts a multilayer series connection structure, adjacent tower layers are connected in series through an interlayer series switch, and the capacitor of each tower layer is connected in series and then outputs test current and voltage from an output end; a plurality of capacitors can be selected for parallel connection in a single tower layer through the fling-cut switch, so that various combinations of the capacitors are realized, the test waveform adjustment is facilitated, and the test requirements are met.
On the basis of the above embodiments, the present application can be further improved, specifically as follows:
in one embodiment of the present application, a sleeve of the capacitor in any one of the tower layers is disposed toward an outside, and the on-off switch is disposed between the capacitor and the external frame. The capacitor adopts a horizontal structure, the sleeve is towards the outside of the tower layer, the fling-cut switch is also arranged outside, the working state of the capacitor is judged by the manual work from the outside through observing the state of the fling-cut switch, and meanwhile, the maintenance and the installation are convenient.
In one embodiment of the present application, the capacitor tower further includes an interlayer parallel switch, where the interlayer parallel switch includes an outer parallel switch and an inner parallel switch, the outer parallel switch is used to connect the outer frames of the adjacent tower layers, and the inner parallel switch is used to connect the inner frames of the adjacent tower layers. The adjacent tower layers can be connected in parallel through the interlayer parallel switch, different test voltages can be conveniently output by selecting the interlayer parallel switch or the interlayer series switch, test waveforms are adjusted, and test requirements are met.
In one embodiment of this application, base and bottom be provided with the support column between the tower layer and adjacent respectively between the tower layer, the support column includes a plurality of straight insulating pillar and a plurality of oblique insulating pillar, and is a plurality of straight insulating pillar evenly distributed, every oblique insulating pillar all sets up adjacent between the straight insulating pillar. The oblique insulating support is obliquely pulled between the adjacent straight insulating supports to form a triangular stable structure, so that the stability of the capacitor tower is enhanced.
In one embodiment of the present application, the outer frame is a grading ring. The equalizing ring is installed on each tower layer, so that a good equalizing effect is achieved, and no corona is generated during testing.
In one embodiment of the present application, a maintenance platform is disposed on the inner frame, and a maintenance ladder is disposed on one side of the maintenance platform. The maintenance is convenient.
In one embodiment of the present application, the on-off switch includes an air cylinder, a moving contact, and a stationary contact; the fixed end of the cylinder is fixedly arranged on the external frame, the moving contact is arranged at the telescopic end of the cylinder and is electrically connected with the external frame, and the fixed contact is respectively and electrically connected with the anodes of the capacitors. The static contact is electrically connected with the anode of the capacitor through the extension of the lead in each sleeve, the moving contact is connected with the external frame through the lead, the cylinder is controlled by the external controller, and the moving contact is driven by the cylinder to be in contact with or far away from the static contact, so that the switching control of the capacitor connected with the static contact is realized.
In one embodiment of the present application, the moving contact and the static contact are both hemispherical, and opposite sides of the moving contact and the static contact are respectively provided with a contact plane. The moving contact and the static contact are of hemispherical structures, so that the field intensity of the fling-cut switch is improved, the voltage resistance of the fling-cut switch is improved, the contact surface of the moving contact and the static contact is a plane, the contact area of the moving contact and the static contact is increased, the contact resistance is reduced, and the through-current capacity of the fling-cut switch is enhanced.
In one embodiment of the present application, the moving contact has a rectangular cross section and is matched with the fixed contact; the cross section of the static contact is U-shaped, the opening of the static contact faces to the moving contact, and the periphery of the static contact is provided with a voltage-sharing cover. During contact, the moving contact is inserted in the static contact, so that two surfaces of the moving contact and the static contact are in contact, the contact area is increased, the contact resistance is reduced, the through-flow capacity of the fling-cut switch is enhanced, the field intensity of the fling-cut switch is improved by the voltage-sharing cover, and the voltage-withstanding performance of the fling-cut switch is improved.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
1. compared with a test station and a large-capacity generator set, the capacitor tower for the synthetic test has the advantages of low input cost and convenience in maintenance;
2. a plurality of capacitors can be selected to be connected in parallel in a single tower layer through the fling-cut switch, and the adjacent tower layers are connected in parallel or in series through the interlayer parallel switch, so that different test voltages can be conveniently output, test waveforms can be adjusted, and test requirements can be met;
3. capacitor sleeve pipe is outside towards the tower layer, and the fling-cut switch also sets up in the outside, is favorable to the manual work to judge capacitor operating condition through observing fling-cut switch's state from the outside, also is convenient for maintain and install simultaneously.
4. The oblique insulating support is obliquely pulled between the adjacent straight insulating supports to form a triangular stable structure, so that the stability of the capacitor tower is enhanced.
Drawings
Fig. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic diagram of a tower layer structure;
fig. 4 is a schematic structural diagram of a fling-cut switch in the second embodiment;
fig. 5 is a schematic structural diagram of a fling-cut switch in the third embodiment.
The device comprises a base 1, an internal frame 21, a capacitor 22, a fling-cut switch 23, an air cylinder 231, a movable contact 232, a fixed contact 233, a voltage-sharing cover 234, an external frame 24, a support 25, a maintenance platform 26, a maintenance ladder 27, an interlayer series switch 3, an external parallel switch 4, a high-voltage output end 5, a straight insulating support 61 and an inclined insulating support 62.
Detailed Description
The present invention will be further explained with reference to the following embodiments, which are to be understood as illustrative only and not as limiting the scope of the invention, and modifications of the various equivalent forms of the present invention by those skilled in the art after reading the present invention fall within the scope of the appended claims.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "vertical" and "outer peripheral surface" are used to indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the product of the present invention is usually placed when in use, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element to be referred must have a specific position, be constructed in a specific orientation, and be operated, and therefore should not be construed as limiting the present invention.
Furthermore, the term "vertical" or the like does not imply that the components are required to be absolutely horizontal or overhanging, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the various embodiments or examples and features of the various embodiments or examples described herein can be combined and combined by those skilled in the art without conflicting aspects.
The embodiment of the application solves the problems of large investment, difficult maintenance and the like in the conventional test method by providing the capacitor tower for the synthesis test, thereby reducing the test cost and facilitating the maintenance.
In order to solve the above problems, the technical solution in the embodiment of the present application has the following general idea:
the first embodiment is as follows:
as shown in fig. 1-3, embodiments of the present application provide a synthetic test capacitor tower comprising: the device comprises a base 1, a plurality of tower layers, an interlayer series switch 3, an interlayer parallel switch and a high-voltage output end 5; a plurality of tower layers are sequentially stacked on the base 1, support columns are respectively and fixedly connected between the base 1 and the bottom tower layer and between adjacent tower layers, each support column comprises a plurality of straight insulation support columns 61 and a plurality of inclined insulation support columns 62, the straight insulation support columns 61 are uniformly distributed, and the inclined insulation support columns 62 are obliquely pulled between the adjacent straight insulation support columns 61; each tower layer comprises an internal frame 21, a capacitor bank, a plurality of fling-cut switches 23 and an external frame 24, the capacitor bank comprises a plurality of capacitors 22, the plurality of capacitors 22 are distributed on two sides of the internal frame 21, sleeves of the capacitors 22 are arranged towards the outside, and the negative electrode of each capacitor 22 is electrically connected with the internal frame 21; the external frame 24 is a grading ring, the external frame 24 is fixed on the internal frame 21 through a support piece 25, the external frame 24 is arranged around the capacitor bank, the fling-cut switch 23 is arranged between the capacitors 22 and the external frame 24, one end of the fling-cut switch 23 is electrically connected with the external frame 24, the other end of the fling-cut switch is electrically connected with the anodes of the capacitors 22, the internal frame 21 is also provided with a maintenance platform 26, and one side of the maintenance platform 26 is provided with a maintenance ladder 27 which is communicated up and down; the interlayer series switch 3 is used for connecting an external frame 24 of any tower layer with an internal frame 21 of the previous tower layer, the interlayer parallel switch comprises an external parallel switch 4 and an internal parallel switch (not shown in the figure), the external parallel switch 4 is used for connecting the external frame 24 of the adjacent tower layer, and the internal parallel switch is used for connecting the internal frame 21 of the adjacent tower layer; the high voltage output terminal 5 is arranged above the tower layer, and the high voltage output terminal 5 is electrically connected with the outer frame 24 of the tower layer on the top layer.
The fling-cut switch, the interlayer series switch and the interlayer parallel switch are all electrically connected with an external controller, and the controller can respectively and independently control the on-off of each switch.
The technical scheme provided in the embodiment at least has the following technical effects or advantages:
1. compared with a test station and a large-capacity generator set, the capacitor tower for the synthetic test has the advantages of low input cost and convenience in maintenance;
2. a plurality of capacitors can be selected to be connected in parallel in a single tower layer through the fling-cut switch, and the adjacent tower layers are connected in parallel or in series through the interlayer parallel switch, so that different test voltages can be conveniently output, test waveforms can be adjusted, and test requirements can be met;
3. capacitor sleeve pipe is outside towards the tower layer, and the fling-cut switch also sets up in the outside, is favorable to the manual work to judge capacitor operating condition through observing fling-cut switch's state from the outside, also is convenient for maintain and install simultaneously.
4. The oblique insulating support is obliquely pulled between the adjacent straight insulating supports to form a triangular stable structure, so that the stability of the capacitor tower is enhanced.
Example two:
as shown in fig. 4, on the basis of the first embodiment, the on-off switch includes an air cylinder 231, a movable contact 232, and a stationary contact 233; the fixed end of the cylinder 231 is fixedly arranged on the external frame 24, the moving contact 232 is arranged on the telescopic end of the cylinder 231, the moving contact 232 is electrically connected with the external frame 24, the fixed contact 233 is arranged on the sleeve end of the capacitor 22, the fixed contact 233 is respectively electrically connected with the anode of the capacitor 22, the moving contact 232 and the fixed contact 233 are both hemispherical, and contact planes are respectively arranged on the opposite sides of the moving contact 232 and the fixed contact 233.
Example three:
as shown in fig. 5, on the basis of the first embodiment, the on-off switch includes an air cylinder 231, a movable contact 232, and a stationary contact 233; the fixed end of the cylinder 231 is fixedly arranged on the external frame 24, the moving contact 232 is arranged on the telescopic end of the cylinder 231, the moving contact 232 is electrically connected with the external frame 24, the fixed contact 233 is arranged on the sleeve end part of the capacitor 22, the fixed contact 233 is respectively electrically connected with the anode of the capacitor 22, and the cross section of the moving contact 232 is rectangular and matched with the fixed contact 233; the cross section of the static contact 233 is U-shaped, the opening of the static contact 233 faces the moving contact 232, and the periphery of the static contact 233 is provided with a voltage-sharing cover 234.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (9)
1. A synthetic test capacitor tower, comprising:
a base;
a plurality of tower layer, a plurality of the tower layer superpose in proper order in on the base, each the tower layer all includes:
an inner frame;
the capacitor bank comprises a plurality of capacitors, the capacitors are distributed on two sides of the internal frame, and the negative electrode of each capacitor is electrically connected with the internal frame;
an outer frame surrounding the capacitor bank;
one end of each fling-cut switch is electrically connected with the external frame, and the other end of each fling-cut switch is electrically connected with the positive electrodes of the capacitors;
the interlayer series switch is arranged between any one of the tower layers and the tower layer above the tower layer, and is used for connecting the external frame of the lower tower layer with the internal frame of the upper tower layer;
and the high-voltage output end is arranged above the tower layer and is electrically connected with the external frame of the tower layer on the top layer.
2. The capacitor tower of claim 1, wherein: the sleeve of the capacitor in any tower layer is arranged towards the outside, and the fling-cut switch is arranged between the capacitor and the external frame.
3. The capacitor tower of claim 1, wherein: the capacitor tower further comprises an interlayer parallel switch, the interlayer parallel switch comprises an outer parallel switch and an inner parallel switch, the outer parallel switch is used for connecting the outer frames of the adjacent tower layers, and the inner parallel switch is used for connecting the inner frames of the adjacent tower layers.
4. The capacitor tower of claim 1, wherein: the base and bottom between the tower layer and adjacent be provided with the support column between the tower layer respectively, the support column includes a plurality of straight insulating support posts and a plurality of oblique insulating support posts, and is a plurality of straight insulating support post evenly distributed, every oblique insulating support post all sets up in adjacent between the straight insulating support post.
5. The capacitor tower of claim 1, wherein: the outer frame is a grading ring.
6. The capacitor tower of claim 1, wherein: the inner frame is provided with a maintenance platform, and one side of the maintenance platform is provided with a maintenance ladder.
7. The capacitor tower of claim 1, wherein: the switching switch comprises an air cylinder, a moving contact and a static contact; the fixed end of the cylinder is fixedly arranged on the external frame, the moving contact is arranged at the telescopic end of the cylinder and is electrically connected with the external frame, and the fixed contact is respectively and electrically connected with the anodes of the capacitors.
8. The capacitor tower of claim 7, wherein: the moving contact and the static contact are hemispherical, and contact planes are respectively arranged on opposite sides of the moving contact and the static contact.
9. The capacitor tower of claim 7, wherein: the cross section of the moving contact is rectangular and is matched with the fixed contact; the cross section of the static contact is U-shaped, the opening of the static contact faces to the moving contact, and the periphery of the static contact is provided with a voltage-sharing cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021652898.8U CN212341285U (en) | 2020-08-10 | 2020-08-10 | Capacitor tower for synthesis test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021652898.8U CN212341285U (en) | 2020-08-10 | 2020-08-10 | Capacitor tower for synthesis test |
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| Publication Number | Publication Date |
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| CN212341285U true CN212341285U (en) | 2021-01-12 |
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| CN202021652898.8U Active CN212341285U (en) | 2020-08-10 | 2020-08-10 | Capacitor tower for synthesis test |
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