Capacitance measuring tool and capacitance measuring system

Abstract

The utility model provides a capacitance measurement tool and a capacitance measurement system. The capacitance measurement tool comprises a base, a plurality of measurement cavities located in the base and sequentially and adjacently arranged, and wire rows embedded in the first end and the second end of each measurement cavity. The plurality of measuring cavities comprise at least one first measuring cavity and at least one second measuring cavity; the first measuring cavity is used for installing a first-class capacitor, and the second measuring cavity is used for installing a second-class capacitor; the wire row is used for being electrically connected with a first type capacitor installed in the first measuring cavity and / or a second type capacitor installed in the second measuring cavity. The wire row comprises a leading-out wire protruding out of the base; any two adjacent measuring cavities are connected in series through a leading-out wire.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric variable measurement, and in particular to a capacitor measurement tool and a capacitor measurement system. BACKGROUND

[0002] In a voltage sensor based on the principle of a capacitive voltage sensor and a power taking device based on the principle of a capacitive voltage transformer, a high-voltage capacitor and a low-voltage capacitor are arranged. Due to the influence of the capacitor winding process, at least two high-voltage capacitors need to be arranged in the voltage sensor or the power taking device. In order to ensure the accuracy of the voltage sensor and the power taking device, the accuracy of each capacitor and the overall accuracy of the high-voltage capacitor and the low-voltage capacitor after matching need to be ensured. Therefore, when producing the voltage sensor and the power taking device, the capacitors need to be accurately selected for each voltage sensor or power taking device.

[0003] In the related art, a plurality of capacitors need to be manually connected in series by hand, and a detection contact is abutted against both ends of the capacitor to measure the capacitance value. However, this operation method needs to consume a lot of manpower, and the operation is very inconvenient, which reduces the detection efficiency, and the detection contact is prone to poor contact with the capacitor terminal, which reduces the detection accuracy. CONTENT OF THE UTILITY MODEL

[0004] The capacitor measurement tool and the capacitor measurement system provided in the embodiments of the present application can realize efficient and accurate measurement of the to-be-measured capacitors through the tool of the base, the plurality of measurement cavities, and the wire rows respectively embedded at the first end and the second end of each measurement cavity.

[0005] The technical solution of the embodiments of the present application is as follows:

[0006] The present application provides a capacitor measurement tool, which comprises: a base, a plurality of measurement cavities arranged in the base in sequence and adjacent to each other, and wire rows respectively embedded at the first end and the second end of each measurement cavity; the plurality of measurement cavities comprises at least one first measurement cavity and at least one second measurement cavity; the first measurement cavity is used for mounting a first type of capacitor, and the second measurement cavity is used for mounting a second type of capacitor; the wire rows are used for electrically connecting the first type of capacitor mounted in the first measurement cavity and / or the second type of capacitor mounted in the second measurement cavity; the wire rows comprise lead-out wires protruding from the base; any two adjacent measurement cavities are connected in series through the lead-out wires.

[0007] In the above solution, the length between the wire row at the first end of the first measurement cavity and the wire row at the second end of the first measurement cavity is equal to the length of the first type of capacitor; and the length between the wire row at the first end of the second measurement cavity and the wire row at the second end of the second measurement cavity is equal to the length of the second type of capacitor.

[0008] In the above scheme, the length of the first measuring cavity is greater than the length of the first type of capacitor, and the length difference between the length of the first measuring cavity and the length of the first type of capacitor is less than a preset length difference threshold; the length of the second measuring cavity is greater than the length of the second type of capacitor, and the length difference between the length of the second measuring cavity and the length of the second type of capacitor is less than the preset length difference threshold.

[0009] In the above scheme, the wire row is an elastic wire row; when the first type of capacitor is installed in the first measuring cavity, the elastic wire row is in a retracted state; when the first type of capacitor is not installed in the first measuring cavity, the elastic wire row is in a popped-out state.

[0010] In the above scheme, the base includes at least two rows of measuring cavities arranged in parallel, any two adjacent rows of measuring cavities are connected in parallel through a lead-out wire, each row of measuring cavities includes at least one first measuring cavity and at least one second measuring cavity; the first measuring cavity is used for installing the first type of capacitor; and the second measuring cavity is used for installing the second type of capacitor.

[0011] In the above scheme, the lead-out wire includes a bare wire segment, and the metal conductor of the bare wire segment is not wrapped with an insulating material.

[0012] In the above scheme, the wire row is a detachable wire row, and each adjacent two measuring cavities in the base have a wire row socket; the wire row socket is used for inserting the detachable wire row into the base in a plug-in manner.

[0013] The embodiment of the present application provides a capacitor measurement system, which comprises a measurement device and the capacitor measurement tool provided in the above embodiment; the measurement device comprises a measurement device main body and a wire clamp connected with the measurement device main body; the wire clamp is used for clamping the lead-out wire at two ends of a capacitor to be measured in the measuring cavity when the capacitance of the capacitor to be measured installed in the measuring cavity is measured.

[0014] In the above scheme, the wire clamp is specifically used for clamping a first lead-out wire and a second lead-out wire of at least one adjacent measuring cavity when the capacitance of the capacitor to be measured installed in the at least one adjacent measuring cavity is measured; the first lead-out wire is the lead-out wire of the first end of the first measuring cavity in the at least one adjacent measuring cavity, and the second lead-out wire is the lead-out wire of the second end of the last measuring cavity in the at least one adjacent measuring cavity.

[0015] In the above scheme, the lead-out wire includes a bare wire segment, and the metal conductor of the bare wire segment is not wrapped with an insulating material; and the wire clamp clamps the bare wire segment of the lead-out wire.

[0016] The embodiments of the present application have the following beneficial effects:

[0017] The capacitor measuring tool and the capacitor measuring system provided by the embodiments of the present application can simultaneously adapt capacitors with different capacitance values for measurement by arranging at least one first measuring cavity and at least one second measuring cavity for mounting first-type capacitors and second-type capacitors respectively, thereby improving the flexibility and application range of the capacitor measuring tool. Moreover, the line array is arranged in the first measuring cavity and the second measuring cavity, so that the capacitor and the measuring cavity can be conveniently and quickly electrically connected, thereby reducing the complexity and operation time of manually connecting the capacitor and improving the capacitor measurement efficiency. In addition, the lead wire protruding from the base is arranged in the line array, and adjacent measuring cavities are connected in series through the lead wire, which is helpful for the measurement of multiple capacitors in series and is suitable for high-precision measurement scenarios. In addition, the capacitor can be fixed by the measuring cavity, thereby ensuring good contact between the capacitor and the line array and improving the accuracy of capacitor measurement. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 FIG. 1 is a structural schematic diagram of a capacitor measuring tool provided by an embodiment of the present application;

[0019] Figure 2 FIG. 2 is another structural schematic diagram of a capacitor measuring tool provided by an embodiment of the present application;

[0020] Figure 3 FIG. 3 is a schematic diagram of a line array socket provided by an embodiment of the present application;

[0021] Figure 4 FIG. 4 is a structural schematic diagram of a capacitor measuring system provided by an embodiment of the present application.

[0022] BRIEF DESCRIPTION OF DRAWINGS

[0023] 100 - capacitor measuring tool; 1 - base; 2 - first measuring cavity; 3 - second measuring cavity; 4 - line array; 5 - lead wire; 6 - first row of measuring cavities; 7 - second row of measuring cavities; 8 - first measuring cavity in the second row of measuring cavities; 9 - second measuring cavity in the second row of measuring cavities; 10 - line array socket; 11 - detachable line array;

[0024] 200 - capacitor measuring system; 12 - measuring device; 13 - wire clamp; 14 - main body of the measuring device. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be described in further detail below with reference to the drawings, and the described embodiments should not be regarded as limiting the present application. All other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present application.

[0026] In the following description, reference is made to "some embodiments", which describe only a subset of all possible embodiments, and which can be understood as referring to a particular set of embodiments, or as a particular combination of features, without necessarily referring to the same set of embodiments or features in all cases.

[0027] In the following description, the terms "first / second / third" are merely used to distinguish similar objects, and do not represent a specific order of the objects. It can be understood that the "first / second / third" can be interchanged in a specific order or sequence as allowed, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein.

[0028] In the embodiments of the present application, the term "module" or "unit" refers to a part of a structure with a predetermined function, and works with other related parts to achieve a predetermined target, and can be implemented in whole or in part by using software, hardware (such as processing circuitry or memory), or a combination thereof.

[0029] Unless otherwise defined, all technical and scientific terms used in the embodiments of the present application have the same meanings as commonly understood by one of ordinary skill in the art. The terms used in the embodiments of the present application are merely for the purpose of describing the embodiments of the present application and are not intended to limit the present application.

[0030] The embodiments of the present application provide a capacitor measurement tool, which comprises a base, a plurality of measurement cavities arranged in the base in sequence and adjacent to each other, and a wire row embedded in the first end and the second end of each measurement cavity, respectively. The plurality of measurement cavities comprises at least one first measurement cavity and at least one second measurement cavity. The first measurement cavity is used for mounting a first type of capacitor, and the second measurement cavity is used for mounting a second type of capacitor. The wire row is used for electrical connection with the first type of capacitor mounted in the first measurement cavity and / or the second type of capacitor mounted in the second measurement cavity. The wire row comprises a lead wire protruding from the base. Any two adjacent measurement cavities are connected in series through the lead wire. In the embodiments of the present application, at least one first measurement cavity and at least one second measurement cavity are provided for mounting the first type of capacitor and the second type of capacitor, respectively, so that the capacitor measurement tool can simultaneously adapt to capacitors of different capacitance values for measurement, improving the flexibility and application range of the capacitor measurement tool. Moreover, the wire row is arranged in the first measurement cavity and the second measurement cavity, so that the capacitor and the measurement cavity can be conveniently and quickly electrically connected, reducing the complexity and operation time of manual connection of the capacitor, and improving the capacitor measurement efficiency. In addition, the lead wire protruding from the base is arranged in the wire row, and the adjacent measurement cavities are connected in series through the lead wire, which is helpful for the measurement of multiple capacitors in series and is suitable for high-precision measurement scenarios. In addition, the capacitor can be fixed by the measurement cavity, so as to ensure good contact between the capacitor and the wire row and improve the accuracy of capacitor measurement.

[0031] The capacitance measuring fixture of this application embodiment will be described in detail below with reference to the accompanying drawings.

[0032] Figure 1 This is a schematic diagram of the capacitance measuring fixture provided in the embodiments of this application; Figure 2 This is a schematic diagram of the capacitance measurement system provided in the embodiments of this application.

[0033] The following will combine Figure 1 The structure shown illustrates the capacitance measurement fixture provided in the embodiments of this application.

[0034] In some embodiments, the capacitance measuring fixture 100 includes at least: a base 1, a plurality of measuring cavities (including a first measuring cavity 2 and a second measuring cavity 3) located in the base 1 and arranged sequentially adjacent to each other, a wire array 4 respectively embedded at the first end and the second end of each measuring cavity, and a lead wire 5 included in the wire array 4.

[0035] Multiple measuring cavities include at least one first measuring cavity 2 ( Figure 1 An exemplary embodiment is shown, comprising two first measuring cavities 2 and at least one second measuring cavity 3; the first measuring cavity 2 is used to mount a first type of capacitor, and the second measuring cavity 3 is used to mount a second type of capacitor; the busbar 4 in the first measuring cavity 2 is used for electrical connection to the first type of capacitor mounted in the first measuring cavity 2, and the busbar 4 in the second measuring cavity 3 is used for electrical connection to the second type of capacitor mounted in the second measuring cavity 3; the busbar 4 includes a lead 5 protruding from the base 1. Each measuring cavity can be used individually, or two adjacent measuring cavities can be connected in series via the lead 5. By sequentially connecting each two adjacent measuring cavities in series, the capacitance value of multiple capacitors under test can be measured simultaneously.

[0036] Here, the base 1 is an insulator with insulating function; the first measuring cavity 2 and the second measuring cavity 3 are cavities opened on the base 1 for placing the first type of capacitor and the second type of capacitor; the first type of capacitor can be a high-voltage capacitor and the second type of capacitor can be a low-voltage capacitor.

[0037] In some embodiments, the first measuring cavity 2 and the second measuring cavity 3 can be arranged sequentially, such as arranging at least one second measuring cavity 3 first and then arranging at least one first measuring cavity 2; or they can be arranged at intervals, such as arranging one second measuring cavity 3 first, then arranging at least one first measuring cavity 2, then arranging another second measuring cavity 3, and so on. The specific arrangement method is not limited in this application.

[0038] In this embodiment, the busbar 4 is made of a conductive material. The busbar 4 is used for electrical connection with a first type of capacitor installed in the first measuring cavity 2 and / or a second type of capacitor installed in the second measuring cavity 3. The lead wire 5 is a conductive wire connected to the busbar 4, protruding from the base 1.

[0039] The embodiment of the present application can simultaneously adapt capacitors with different capacitance values for measurement by setting at least one first measuring cavity and at least one second measuring cavity for mounting the first type of capacitor and the second type of capacitor respectively, thereby improving the flexibility and application range of the capacitor measurement tool. Moreover, the line array is arranged in the first measuring cavity and the second measuring cavity, so that the capacitor and the measuring cavity can be conveniently and quickly electrically connected, thereby reducing the complexity and operation time of manually connecting the capacitor and improving the capacitor measurement efficiency. In addition, the line array is provided with the lead wire protruding from the base, and adjacent measuring cavities are connected in series through the lead wire, which is helpful for the measurement of multiple capacitors in series and is suitable for high-precision measurement scenarios. In addition, the capacitor can be fixed by the measuring cavity, thereby ensuring good contact between the capacitor and the line array and improving the accuracy of capacitor measurement.

[0040] In some embodiments, the length between the line array at the first end in the first measuring cavity and the line array at the second end in the first measuring cavity is equal to the length of the first type of capacitor; and the length between the line array at the first end in the second measuring cavity and the line array at the second end in the second measuring cavity is equal to the length of the second type of capacitor. Here, the length between the line array at the first end in the first measuring cavity 2 and the line array at the second end in the first measuring cavity is equal to the length of the first type of capacitor; and the length between the line array at the first end in the second measuring cavity 3 and the line array at the second end in the second measuring cavity is equal to the length of the second type of capacitor, which can ensure that the first type of capacitor and the second type of capacitor can be firmly fixed in the first measuring cavity 2 and the second measuring cavity 3 when they are installed in the first measuring cavity 2 and the second measuring cavity 3, thereby preventing the first type of capacitor or the second type of capacitor from being displaced greatly and causing the capacitor measurement result to deviate, thereby reducing the accuracy of the capacitor measurement result.

[0041] In some embodiments, the line array 4 can be an elastic line array; when the first type of capacitor is installed in the first measuring cavity 2, the elastic line array is in a retracted state; and when the first type of capacitor is not installed in the first measuring cavity 2, the elastic line array is in a popped-out state. Here, the elastic line array refers to a line array made of a conductive material with elasticity or a conductive material designed with a spring or other elastic element, which can be stretched or retracted.

[0042] On the basis that the line array 4 is an elastic line array, there can be a certain deviation between the length of the measuring cavity and the length of the capacitor.

[0043] In other embodiments, the length of the first measuring cavity 2 can also be greater than the length of the first type of capacitor, and the length difference between the length of the first measuring cavity 2 and the length of the first type of capacitor is less than a preset length difference threshold value; similarly, the length of the second measuring cavity 3 can also be greater than the length of the second type of capacitor, and the length difference between the length of the second measuring cavity 3 and the length of the second type of capacitor is less than a preset length difference threshold value.

[0044] Here, the preset length difference threshold refers to the maximum difference between the length of the capacitor and the length of the measuring cavity; for example, when the first type of capacitor is placed in the first measuring cavity 2, the front and back ends of the first type of capacitor are in contact with the elastic wire row embedded in the first end and the second end of the first measuring cavity 2, and the elastic wire row does not retract, at this time, the length difference between the first type of capacitor and the first measuring cavity 2 is the preset length difference threshold.

[0045] In some embodiments, the wire row 4 further includes a lead-out wire 5 protruding from the base 1; the lead-out wire 5 includes a bare wire segment, wherein the metal wire outside the bare wire segment is not wrapped with insulating material.

[0046] Here, the lead-out wire 5 includes two parts, a metal wire segment wrapped with insulating material and a metal wire segment not wrapped with insulating material, for example, the length of the lead-out wire 5 is 10 centimeters, including a metal wire segment wrapped with insulating material of 8 centimeters and a metal wire segment not wrapped with insulating material of 2 centimeters.

[0047] In some embodiments, the base includes at least two rows of measuring cavities arranged in parallel, any two adjacent rows of measuring cavities are connected in parallel through a lead-out wire, each row of measuring cavities includes at least one first measuring cavity and at least one second measuring cavity; wherein the first measuring cavity is used to install the first type of capacitor; the second measuring cavity is used to install the second type of capacitor. For multiple measuring cavities in the same row, any two adjacent measuring cavities are connected in series through a lead-out wire.

[0048] Referring to Figure 2 , Figure 2 is another structural schematic diagram of the capacitor measuring tool provided by the embodiments of the present application. The base includes at least two rows of measuring cavities arranged in parallel, which are the first row of measuring cavities 6 and the second row of measuring cavities 7; each row of measuring cavities includes at least one first measuring cavity and at least one second measuring cavity; wherein the first measuring cavity 8 in the second row of measuring cavities 7 is used to install the first type of capacitor, and the second measuring cavity 9 in the second row of measuring cavities 7 is used to install the second type of capacitor; here, the first type of capacitor can be a high-voltage capacitor, and the second type of capacitor can be a low-voltage capacitor; when the capacitance of multiple capacitors connected in series needs to be measured, the first measuring cavity 8 and the second measuring cavity 9 connected in series can be used for measurement, wherein the high-voltage capacitor can be installed in the first measuring cavity 8, and the low-voltage capacitor can be installed in the second measuring cavity 9; when only the capacitance of one capacitor needs to be measured, any one of the first measuring cavity 8 or the second measuring cavity 9 that can normally install the capacitor can be used for measurement.

[0049] The first end and the second end of the first measuring cavity 8 in the second row of measuring cavities 7 and the first end and the second end of the second measuring cavity 9 in the second row of measuring cavities 7 are respectively embedded with a wire row (not shown in the figure), and the wire row is connected with the lead-out wire 5. The first row of measuring cavities 6 and the second row of measuring cavities 7 are connected in parallel.

[0050] It should be noted that by arranging at least two rows of measuring cavities, a plurality of groups of capacitors can be measured at the same time, thereby improving the efficiency of capacitor measurement.

[0051] In some embodiments, the wire row is a detachable wire row, and a wire row insertion opening is arranged between each adjacent two measuring cavities in the base. The wire row insertion opening is used for inserting the detachable wire row into the base in a plug-in manner.

[0052] Referring to Figure 3 , Figure 3 is a schematic diagram of a wire row insertion opening provided by an embodiment of the present application. At least one wire row insertion opening 10 is arranged between each adjacent two measuring cavities. The detachable wire row 11 can be pulled out from the current position and inserted into the wire row insertion opening 10 to change the size of the measuring cavity. The number of wire row insertion openings can be set according to actual needs, which is not limited in the present application. By plugging and unplugging the detachable wire row, the measuring cavity can adapt to capacitors of different sizes, thereby improving the applicability of the capacitor measurement tool.

[0053] In summary, by arranging at least one first measuring cavity and at least one second measuring cavity for mounting first-type capacitors and second-type capacitors respectively, different capacitors of different capacitance values can be simultaneously adapted for measurement, thereby improving the flexibility and application range of the capacitor measurement tool. Moreover, by arranging a wire row in the first measuring cavity and the second measuring cavity, the capacitor and the measuring cavity can be conveniently and quickly electrically connected, thereby reducing the complexity and operation time of manually connecting the capacitor and improving the efficiency of capacitor measurement. In addition, the lead-out wire protruding from the base is arranged in the wire row, and adjacent measuring cavities are connected in series through the lead-out wire, which is helpful for the measurement of multiple capacitors in series and is suitable for high-precision measurement scenarios. In addition, the capacitor can be fixed by the measuring cavity to prevent the capacitor from shifting, thereby ensuring good contact between the capacitor and the wire row and improving the accuracy of capacitor measurement.

[0054] Based on the capacitor measurement tool provided in the above embodiments, an embodiment of the present application further provides a capacitor measurement system. Referring to Figure 4 , Figure 4 is a structural schematic diagram of a capacitor measurement system provided by an embodiment of the present application. The following will be described in combination with the structure shown in Figure 4 .

[0055] In some embodiments, the capacitor measurement system 200 at least includes a capacitor measurement tool 100 and a measurement device 12. The measurement device 12 includes a wire clamp 13 and a measurement device main body 14.

[0056] The measuring device 12 comprises a measuring device main body 14 and a wire clamp 13 connected to the measuring device main body; the wire clamp 13 is used to clamp the lead wires at both ends of the to-be-measured capacitor in the measuring cavity when the capacitance value of the to-be-measured capacitor installed in the measuring cavity is measured.

[0057] In some embodiments, the wire clamp 13 is specifically used to clamp the first lead wire and the second lead wire of the at least one adjacent measuring cavity when the capacitance value of the to-be-measured capacitor installed in the at least one adjacent measuring cavity is measured; the first lead wire is the lead wire at the first end of the first measuring cavity in the at least one adjacent measuring cavity, and the second lead wire is the lead wire at the second end of the last measuring cavity in the at least one adjacent measuring cavity.

[0058] Here, the first end and the second end are two completely opposite ends in the measuring cavity, for example, the leftmost end of the first measuring cavity is the first end, and the rightmost end is the second end; when there are multiple measuring cavities, the second end of the first measuring cavity and the first end of the second measuring cavity are connected in series through the lead wire.

[0059] In some embodiments, the lead wire comprises a bare wire segment, wherein the metal conductor outside the bare wire segment is not wrapped with an insulating material; the wire clamp 13 is clamped at the bare wire segment of the lead wire.

[0060] Here, the lead wire between any two measuring cavities comprises a bare wire segment, and the bare wire segment is connected in series, and the wire clamp 13 is clamped at the bare wire segment of the series-connected lead wire.

[0061] When the wire clamp 13 is clamped on the lead wire at both ends of a capacitor, the capacitance value of the capacitor can be measured, for example, when the wire clamp is clamped on the lead wire at both ends of the capacitor A, the capacitance value of the capacitor A can be measured.

[0062] When the wire clamp 12 is clamped on the lead wire at both ends of at least two series-connected capacitors, the total capacitance value of the at least two series-connected capacitors can be measured; for example, the capacitor A and the capacitor B are connected in series, and the wire clamp is clamped on the lead wire at the first end of the capacitor A and the lead wire at the second end of the capacitor B, so that the total capacitance value of the capacitor A and the capacitor B can be measured.

[0063] In summary, the capacitor is fixed by the measuring cavity, the wire clamp is clamped on the first lead wire and the second lead wire of the at least one measuring cavity, and the to-be-measured capacitor is connected to the measuring device main body through the wire clamp, so that the capacitance value measurement is realized, thereby avoiding the manual operation of the measuring personnel to abut the detection contact of the measuring device on both ends of the capacitor for measurement, reducing the labor cost, avoiding the poor contact between the detection contact and the capacitor end, and improving the capacitor measurement efficiency and detection accuracy.

[0064] The above merely provides an example of the present application, but is not intended to limit the protection scope of the present application. Any modification, equivalent replacement, and improvement made within the spirit and scope of the present application shall be included in the protection scope of the present application.

Claims

1. A capacitance measuring fixture, characterized in that, The capacitance measurement fixture includes: a base, a plurality of measurement cavities located in the base and arranged sequentially adjacent to each other, and a wire array respectively embedded at the first end and the second end of each of the measurement cavities; The plurality of measuring cavities includes at least one first measuring cavity and at least one second measuring cavity; the first measuring cavity is used to install a first type of capacitor, and the second measuring cavity is used to install a second type of capacitor; The busbar is used for electrical connection with a first type of capacitor installed in the first measuring cavity and / or a second type of capacitor installed in the second measuring cavity; the busbar includes leads protruding from the base; any two adjacent measuring cavities are connected in series through the leads.

2. The capacitance measuring fixture according to claim 1, characterized in that, The length between the first end of the busbar in the first measuring cavity and the second end of the busbar in the first measuring cavity is equal to the length of the first type of capacitor; the length between the first end of the busbar in the second measuring cavity and the second end of the busbar in the second measuring cavity is equal to the length of the second type of capacitor.

3. The capacitance measuring fixture according to claim 1, characterized in that, The length of the first measuring cavity is greater than the length of the first type of capacitor, and the length difference between the length of the first measuring cavity and the length of the first type of capacitor is less than a preset length difference threshold. The length of the second measuring cavity is greater than the length of the second type of capacitor, and the length difference between the length of the second measuring cavity and the length of the second type of capacitor is less than the preset length difference threshold.

4. The capacitance measuring fixture according to claim 1, characterized in that, The busbar is a flexible busbar; When the first type of capacitor is installed in the first measuring cavity, the elastic wire strip is in a retracted state; when the first type of capacitor is not installed in the first measuring cavity, the elastic wire strip is in a pop-up state.

5. The capacitance measuring fixture according to claim 1, characterized in that, The base includes at least two rows of measuring chambers arranged in parallel. Any two adjacent rows of measuring chambers are connected in parallel by lead wires. Each row of measuring chambers includes at least one first measuring chamber and at least one second measuring chamber. The first measuring cavity is used to install the first type of capacitor; the second measuring cavity is used to install the second type of capacitor.

6. The capacitance measuring fixture according to claim 1, characterized in that, The lead wire includes an exposed wire segment, and the exposed wire segment's metal conductor is not wrapped with insulating material.

7. The capacitance measuring fixture according to claim 1, characterized in that, The cable tray is a detachable cable tray, and a cable tray connector is located between every two adjacent measuring chambers in the base; The cable connector is used to insert the detachable cable into the base by plugging and unplugging.

8. A capacitance measurement system, characterized in that, The capacitance measurement system includes: a measuring device and the capacitance measurement fixture according to any one of claims 1 to 7; The measuring device includes a measuring device body and a wire clamp connected to the measuring device body; The wire clamp is used to clamp the leads at both ends of the capacitor to be tested in the measuring cavity when measuring the capacitance value of the capacitor to be tested installed in the measuring cavity.

9. The capacitance measurement system according to claim 8, characterized in that, The wire clamp is specifically used for: When measuring the capacitance of a capacitor to be tested installed in at least one adjacent measuring cavity, the capacitor is clamped to the first lead and the second lead of the at least one adjacent measuring cavity. The first lead is the lead at the first end of the first measuring cavity in the at least one adjacent measuring cavity, and the second lead is the lead at the second end of the last measuring cavity in the at least one adjacent measuring cavity.

10. The capacitance measurement system according to claim 8 or 9, characterized in that, The lead wire includes an exposed wire segment, and the exposed wire segment's metal conductor is not wrapped with insulating material. The clamp holds the exposed section of the lead wire.

Images