CN215896180U - Low-voltage co-compensation and sub-compensation integrated parallel compensation capacitor - Google Patents
Low-voltage co-compensation and sub-compensation integrated parallel compensation capacitor Download PDFInfo
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- CN215896180U CN215896180U CN202122123132.1U CN202122123132U CN215896180U CN 215896180 U CN215896180 U CN 215896180U CN 202122123132 U CN202122123132 U CN 202122123132U CN 215896180 U CN215896180 U CN 215896180U
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Abstract
The utility model discloses a low-voltage co-compensation and sub-compensation integrated parallel compensation capacitor which comprises a metal shell, wherein the upper end of the metal shell is connected with a contact terminal, two sides of the contact terminal are connected with metal supporting columns, a capacitor core package is arranged in the metal shell, a filler is filled between the capacitor core package and the metal shell, and the filler is a heat-conducting electrolyte. The capacitor cores are separated by interphase insulating paper, and the bottom of the capacitor cores is also provided with the insulating paper. The anti-explosion device is arranged above the capacitor core package, the capacitor core package is connected with the anti-explosion device through a lead, a temperature sensor is fixedly arranged on a cover plate of the metal shell, and the temperature sensor is inserted into the filler, so that the temperature change data inside the capacitor can be collected in real time. And a discharge resistor is connected between the leads, and when the capacitor is charged to a certain value, discharge treatment is required to be carried out through the discharge resistor. The utility model has strong practicability.
Description
Technical Field
The utility model relates to the technical field of construction site equipment, in particular to a low-voltage common-compensation and separate-compensation integrated parallel compensation capacitor.
Background
In low-voltage power distribution systems, due to the increasing use of industrial and domestic electricity, impact-sensitive loads such as motors, compressors, and ac welding machines are widely used. The devices consume a large amount of reactive power in a power grid, and cause the phenomena of distortion of voltage and current waveforms, severe voltage fluctuation, reduction of power factors, three-phase imbalance and the like, so that the quality of electric energy is reduced, and huge energy waste is brought. If the reactive power can not be compensated in time, large-scale line loss is caused, and the normal use of the electric equipment and the safe operation of the electric power system are seriously influenced.
At present, reactive compensation is realized through a capacitor bank in capacitor compensation, a three-phase common compensation capacitor and a three-phase sub compensation capacitor are independently arranged, the compensation method is single, and the user selection range is small; when the three phases of the user load are unbalanced, the three-phase dynamic reactive compensation is difficult to maintain in time, and electric energy waste is formed. In addition, when the capacitor is subjected to reactive compensation again, the phenomenon of heating can be generated inevitably due to the characteristics of the capacitor, the faults of ignition, explosion, bulging and the like of the capacitor can be caused due to the overhigh operating temperature of the capacitor, and the service life of the capacitor can be shortened. Therefore, detection of the dielectric temperature inside the capacitor is essential.
Therefore, the following disadvantages are present: for a three-phase user system with unbalanced load, the actual load compensation according to each phase cannot be effectively carried out;
2. the compensation scheme is single, under compensation or over compensation exists, and the load can work in an overvoltage mode when the over compensation is carried out;
3. the traditional parallel compensation capacitor wiring terminal is easy to fall off and troublesome in wiring;
4. the device does not have the function of monitoring the temperature of the dielectric medium in the capacitor, and brings potential safety hazards to reactive compensation of the capacitor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a low-voltage common-compensation and separate-compensation integrated parallel compensation capacitor.
The utility model is realized by the following steps:
the utility model provides a low-voltage mends altogether and divides parallelly connected compensating capacitor of benefit integral type, includes metal casing, metal casing's upper end is connected with contact terminal's both sides all are connected with the metal pillar, the inside condenser core package that is equipped with of metal casing it has the stopping to fill between condenser core package and the metal casing, the stopping is heat conduction electrolyte. The capacitor cores are separated by interphase insulating paper, and the bottom of the capacitor cores is also provided with the insulating paper.
The anti-explosion device is arranged above the capacitor core package, the capacitor core package is connected with the anti-explosion device through a lead, a temperature sensor is fixedly arranged on a cover plate of the metal shell, and the temperature sensor is inserted into the filler, so that the temperature change data inside the capacitor can be collected in real time. And a discharge resistor is connected between the leads, and when the capacitor is charged to a certain value, discharge treatment is required to be carried out through the discharge resistor.
Furthermore, the capacitor core package comprises a plurality of groups of capacitor cores, the plurality of groups of capacitor cores are divided into two connection modes, namely triangular connection and star connection, a co-compensation module is formed by triangular connection, and a component compensation or co-division integrated module is formed by star connection. The RV inner lead is connected with the capacitor core in two connection modes, namely a triangular connection mode (A1, B1 and C1) and a star connection mode (A2, B2 and C2), so that a novel composite capacitor is formed. After the capacitor obtains a compensation command, the three-phase compensation is put into operation for centralized compensation; when the three-phase load is unbalanced, the split-phase compensation capacitor can compensate one phase or two phases in the three-phase insufficient compensation loop independently. And when the load power fluctuates, the reactive compensation quantity of each phase is correspondingly increased or decreased.
Furthermore, the total compensation module and the sub-compensation or total-sub integrated module are connected through a data plug wire, and are connected with a mixed compensation controller through a communication control bus, and the mixed compensation controller is connected with an indicator. The intelligent control switching is realized, and the capacitor dynamic compensation has practical significance. The capacitor core is separated by interphase insulating paper, and is connected with an RV inner lead which is connected with an explosion-proof device.
Compared with the prior art, the utility model has the beneficial effects that:
1. when the load of a user is unbalanced, single-phase compensation can be realized while angle compensation is carried out, so that the working voltage of the load is stable and normal;
2. the compensation pertinence to different users is stronger, common-phase compensation and split-phase compensation can be simultaneously carried out, and the compensation blind area is eliminated;
3. the temperature sensor is used for acquiring the temperature change data of the heat-conducting electrolyte in the single capacitor, so that various problems caused by overhigh temperature of the electrolyte in the capacitor are effectively prevented;
4. intelligent control switching, and dynamic compensation with practical significance;
5. high integration compensation, and simple and convenient use and maintenance;
6. the capacitor is internally provided with a discharge resistor, and the electric energy of the discharge container can be automatically discharged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic diagram of a metal case structure of a low-voltage common compensation and separate compensation integrated parallel compensation capacitor according to the present invention;
FIG. 2 is a first partial schematic view of a capacitor core packaging structure of the present invention;
FIG. 3 is a second partial schematic view of the capacitor core packaging structure of the present invention;
FIG. 4 is an electrical wiring diagram of the present invention;
the capacitor comprises a metal shell 1, a capacitor core package 2, a filler 3, a metal support 4, an explosion-proof device 5, a contact terminal 6, a temperature sensor 7, a discharge resistor 8, a lead 9, a cover plate 10, a common compensation module 11, a capacitor core 12 of the common compensation module, an explosion-proof device 13 connected with a separate compensation or common division integrated module, an RV inner lead 14, interphase insulating paper 15, a capacitor core 16 of the separate compensation or common division integrated module and insulating paper 17.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1-3, a low-voltage co-compensation and sub-compensation integrated parallel compensation capacitor includes a metal case 1, a contact terminal is connected to an upper end of the metal case 1, metal pillars 4 are connected to two sides of the contact terminal, a capacitor core package 2 is disposed inside the metal case 1, a filler 3 is filled between the capacitor core package 2 and the metal case 1, and the filler 3 is a heat-conducting electrolyte. The capacitor cores are separated by interphase insulating paper, and the insulating paper 17 is also placed at the bottom.
An explosion-proof device 52 is arranged above the capacitor core package 2, the capacitor core package is connected with the explosion-proof device 5 through a lead 9, a temperature sensor 7 is fixedly arranged on a cover plate 10 of the metal shell 1, and the temperature sensor 7 is inserted into the filler 3, so that the temperature change data inside the capacitor can be acquired in real time. And a discharge resistor 8 is connected between the wires 9, and when the capacitor is charged to a certain value, discharge treatment needs to be carried out through the discharge resistor 8.
In this embodiment, the capacitor core package 2 includes a plurality of groups of capacitor cores 12, the plurality of groups of capacitor cores 12 are divided into two connection modes, namely, a delta connection and a star connection, a complementary module is formed by the delta connection, and a complementary or complementary integrated module is formed by the star connection. The RV inner lead is connected with the capacitor core in two connection modes, namely a triangular connection mode (A1, B1 and C1) and a star connection mode (A2, B2 and C2), so that a novel composite capacitor is formed. After the capacitor obtains a compensation command, the three-phase compensation is put into operation for centralized compensation; when the three-phase load is unbalanced, the split-phase compensation capacitor can compensate one phase or two phases in the three-phase insufficient compensation loop independently. And when the load power fluctuates, the reactive compensation quantity of each phase is correspondingly increased or decreased.
In this embodiment, the total compensation module and the sub-compensation or total-sub integrated module are connected by a data plug wire, and are all connected with a mixed compensation controller through a communication control bus, and the mixed compensation controller is connected with an indicator. The intelligent control switching is realized, and the capacitor dynamic compensation has practical significance. The capacitor core is separated by interphase insulating paper, and is connected with an RV inner lead which is connected with an explosion-proof device.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a low-voltage mends altogether and divides parallelly connected compensating capacitor of benefit integral type which characterized in that: including metal casing (1), the upper end of metal casing (1) is connected with contact terminal (6) the both sides of contact terminal (6) all are connected with metal pillar (4), metal casing (1) inside is equipped with condenser core package (2) it has stopping (3) to fill between condenser core package (2) and metal casing (1), the top of condenser core package (2) is equipped with explosion-proof ware (5), condenser core package (2) link to each other with explosion-proof ware (5) through wire (9), fixed temperature sensor (7) that are equipped with on apron (10) of metal casing (1), temperature sensor (7) insert in stopping (3), be connected with discharge resistance (8) between the wire.
2. The low-voltage co-compensation and sub-compensation integrated parallel compensation capacitor as claimed in claim 1, wherein the capacitor core package (2) comprises a plurality of groups of capacitor cores, the plurality of groups of capacitor cores are connected in two ways, namely delta connection and star connection, the co-compensation module is formed by delta connection, and the sub-compensation or co-division integrated module is formed by star connection.
3. The low-voltage co-compensation and sub-compensation integrated parallel compensation capacitor as claimed in claim 2, wherein the co-compensation module and the sub-compensation or co-division integrated module are connected by a data plug wire, and are connected with a co-compensation controller by a communication control bus, and the co-compensation controller is connected with an indicator.
4. The low-voltage co-compensation and sub-compensation integrated parallel compensation capacitor as claimed in claim 2, wherein the capacitor cores are separated by phase-to-phase insulation paper, and the capacitor cores are connected with RV inner leads connected with an explosion-proof device.
5. A low voltage co-compensation and sub-compensation integrated parallel compensation capacitor according to claim 1, wherein the filler (3) is a heat conductive electrolyte.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122123132.1U CN215896180U (en) | 2021-09-03 | 2021-09-03 | Low-voltage co-compensation and sub-compensation integrated parallel compensation capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122123132.1U CN215896180U (en) | 2021-09-03 | 2021-09-03 | Low-voltage co-compensation and sub-compensation integrated parallel compensation capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215896180U true CN215896180U (en) | 2022-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122123132.1U Active CN215896180U (en) | 2021-09-03 | 2021-09-03 | Low-voltage co-compensation and sub-compensation integrated parallel compensation capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215896180U (en) |
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2021
- 2021-09-03 CN CN202122123132.1U patent/CN215896180U/en active Active
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