Insulator supporting device

Abstract

The utility model relates to the technical field of electrical equipment partial discharge detection, in particular to an insulator supporting device, which comprises a base. The support is fixed on the base, and a first voltage-sharing cover is arranged outside the support in a covering mode; the adapter bar is located on the upper portion of the support, and the adapter bar is covered with a second voltage-sharing cover; as the first voltage-sharing cover and the second voltage-sharing cover respectively cover the connection position of the upper end and the lower end of the insulator, the electric field distribution of the two positions is optimized, and the technical effect of improving the measurement accuracy of the partial discharge initial voltage of the insulator is achieved; meanwhile, the partial discharge initial voltage of the voltage equalizing cover is far higher than the partial discharge initial voltage of the insulator, so that the measured partial discharge initial voltage is the real partial discharge initial voltage of the insulator, and the effect of further improving the measurement accuracy is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrical equipment partial discharge detection technical field, especially a kind of insulator support device. BACKGROUND

[0002] In recent years, users have increasingly high requirements on the reliability of electrical equipment, and partial discharge during the use of electrical equipment leads to reduced reliability of insulation parts. The partial discharge inception voltage can reflect the ability of reliable operation of insulation parts.

[0003] Currently, when some electrical equipment manufacturers detect the insulation performance of insulators, due to the uneven electric field around the joints at both ends of the insulator, extra partial discharge is easily generated at the joints, affecting the measurement accuracy of the partial discharge inception voltage. In addition, the upper end of the insulator is connected and fixed by using a copper busbar, and since the round corner radius of the copper busbar is small, the partial discharge inception voltage of the copper busbar is lower than that of the post insulator. Therefore, the measured partial discharge inception voltage is usually that of the copper busbar, and thus the actual partial discharge inception voltage of the insulator cannot be measured. SUMMARY

[0004] This section aims to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name. Such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the technical problem of low measurement accuracy of the partial discharge inception voltage of the insulator in the prior art, the utility model is proposed.

[0006] The utility model aims to provide an insulator support device.

[0007] To solve the above technical problems, the utility model provides the following technical scheme: an insulator support device, comprising a base, a support fixed on the base, a first voltage equalizing cover provided outside the support, an adapter row located at the upper part of the support, and a second voltage equalizing cover provided outside the adapter row.

[0008] As a preferred scheme of the insulator support device of the utility model, the first voltage equalizing cover is in the shape of an inverted pot, a first mounting hole is provided on the upper end face of the first voltage equalizing cover, and a second mounting hole adapted to the first mounting hole is provided on the support.

[0009] As a preferred scheme of the insulator support device of the utility model, the second voltage equalizing cover is in the shape of a pot with an open upper end, a third mounting hole is provided on the lower end face of the second voltage equalizing cover, and a fourth mounting hole adapted to the third mounting hole is provided on the adapter row.

[0010] As a preferred scheme of the insulator support device of the utility model, wherein: the adapter row is L-shaped, and the fourth mounting hole is located at the horizontal part of the adapter row.

[0011] As a preferred scheme of the insulator support device of the utility model, wherein: the vertical part of the adapter row is located at the lower part of the opening of the second grading ring, and the connecting hole is arranged on the vertical part of the adapter row.

[0012] As a preferred scheme of the insulator support device of the utility model, wherein: the bracket is a 'j' character, and the two sides of the bracket are detachably mounted on the base through bolts, and the second mounting hole is located at the upper end surface of the bracket.

[0013] As a preferred scheme of the insulator support device of the utility model, wherein: the first mounting hole and the second mounting hole have the same hole diameter.

[0014] As a preferred scheme of the insulator support device of the utility model, wherein: the third mounting hole and the fourth mounting hole have the same hole diameter.

[0015] As a preferred scheme of the insulator support device of the utility model, wherein: the bracket is a conductor.

[0016] As a preferred scheme of the insulator support device of the utility model, wherein: the base is a frame structure as a whole, and the base is a conductor.

[0017] The insulator support device has the following beneficial effects: the first grading ring and the second grading ring are respectively arranged at the connecting positions of the upper and lower ends of the insulator, the electric field distribution at the two positions is optimized, and the technical effect of improving the measurement accuracy of the partial discharge inception voltage of the insulator is achieved; meanwhile, the partial discharge inception voltage of the grading ring is much higher than that of the insulator, so that the measured partial discharge inception voltage is the real partial discharge inception voltage of the insulator, and the effect of further improving the measurement accuracy is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed in the embodiment description will be briefly introduced as follows, and obviously, the drawings in the following description can be used to obtain other drawings without creative labor for those skilled in the art.

[0019] Figure 1 It is a structural schematic view during detection of the utility model.

[0020] Figure 2 It is a connection structure schematic view of the bracket and the base in the utility model.

[0021] Figure 3 It is the structural schematic view of the first voltage-sharing cover in the utility model.

[0022] Figure 4 It is the internal structure schematic view of the second voltage-sharing cover in the utility model. DETAILED DESCRIPTION

[0023] In order to make the above object, features and advantages of the utility model more apparent, comprehensible and easy to understand, the specific embodiments of the utility model are described in detail below with reference to the drawings of the specification.

[0024] In the following description, a lot of specific details are set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways different from the description herein, and those skilled in the art can make similar generalization without departing from the connotation of the utility model, therefore the utility model is not limited by the specific embodiments disclosed below.

[0025] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the utility model. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is independent or alternative to other embodiments.

[0026] Embodiment 1, refer to Figures 1-4 , the first embodiment of the utility model provides an insulator support device for detecting the partial discharge inception voltage of the insulator 900, connecting and fixing the insulator 900, comprising,

[0027] The base 100, the support 200 is fixed on the base 100, the outer cover of the support 200 is provided with the first voltage-sharing cover 300, the adapter row 400 is located at the upper part of the support 200, and the outer cover of the adapter row 400 is provided with the second voltage-sharing cover 500.

[0028] When detecting specifically, the lower end of the insulator 900 is connected with the support 200 and the first voltage-sharing cover 300, the upper end of the insulator 900 is connected with the adapter row 400 and the second voltage-sharing cover 500, the adapter row 400 is connected with the high-voltage test loop power supply through the cable, the base 100 is grounded through the cable, naturally, the support 200 and the base 100 are both conductors, and the base 100 is specifically a frame structure.

[0029] Detection principle: the high-voltage test loop power supply works, and the test voltage is slowly raised, the partial discharge detector (preferably an ultrasonic partial discharge detector) detects the discharge condition of the insulator 900, and when the first continuous discharge occurs and the discharge amount exceeds the specified minimum value, the voltage at this time is the partial discharge inception voltage.

[0030] Since the first and second voltage-sharing covers 300 and 500 are respectively covered on the connection positions of the upper and lower ends of the insulator 900, the electric field distribution of the two positions is optimized, so that the technical effect of improving the measurement accuracy of the partial discharge inception voltage of the insulator 900 is achieved; at the same time, since the partial discharge inception voltage of the voltage-sharing cover is much higher than that of the insulator 900, the measured partial discharge inception voltage is the real partial discharge inception voltage of the insulator 900, and the effect of further improving the measurement accuracy is achieved.

[0031] Further, the first voltage-sharing cover 300 is a reversed-bowl-shaped body, and the upper end surface of the first voltage-sharing cover 300 is provided with a first mounting hole 301, and the support 200 is provided with a second mounting hole 201 matched with the first mounting hole 301.

[0032] During detection, the specific mounting mode of the lower end of the insulator 900 is that the first voltage-sharing cover 300 is downwardly sleeved outside the support 200, the first mounting hole 301 and the second mounting hole 201 are aligned, then the embedded nut at the lower end of the insulator 900 is aligned with the first mounting hole 301 and the second mounting hole 201, then a bolt is screwed through the first mounting hole 301 and the second mounting hole 201 and is threadedly connected to the embedded nut at the lower end of the insulator 900, and finally the bolt is tightened.

[0033] Further, the second voltage-sharing cover 500 is a bowl-shaped body with an open upper end, and the lower end surface of the second voltage-sharing cover 500 is provided with a third mounting hole 501, and the adapter row 400 is provided with a fourth mounting hole 401 matched with the third mounting hole 501.

[0034] During detection, the specific mounting mode of the upper end of the insulator 900 is that the second voltage-sharing cover 500 is placed at the upper end of the insulator 900, the third mounting hole 501 is aligned with the embedded nut at the upper end of the insulator 900, then the adapter row 400 is placed in the second voltage-sharing cover 500, the fourth mounting hole 401 is aligned with the third mounting hole 501 and the embedded nut at the upper end of the insulator 900, then a bolt is screwed, finally one end of a cable is connected to the adapter row 400, and the other end of the cable is connected to a high-voltage test loop power supply.

[0035] Embodiment 2, refer to Figure 4 The second embodiment of the utility model is different from the previous embodiment in that the adapter row 400 is L-shaped, and the fourth mounting hole 401 is located at the horizontal part of the adapter row 400.

[0036] Since the insulator 900 is vertically installed during detection, it is inconvenient to connect the cable at the upper end of the insulator 900, and therefore the adapter row 400 is used to connect the cable and the insulator 900, specifically, the adapter row 400 is L-shaped, the horizontal part of the adapter row 400 is connected to the upper end of the insulator 900, and the vertical part of the adapter row 400 is connected to the cable connected to the high-voltage test loop power supply.

[0037] Further, the vertical part of the adapter row 400 is located at the lower part of the opening of the second equalizing cover 500, and the vertical part of the adapter row 400 is provided with a connecting hole 402.

[0038] The vertical part of the adapter row 400 is located at the lower part of the opening, facilitating the connection of the cable and the vertical part, and the cable does not need to be bent to the inside of the second equalizing cover 500.

[0039] Embodiment 3, refer to Figures 1-4 The third embodiment of the utility model is different from the previous embodiment, the support 200 is in the shape of a Chinese character 'ji', the two sides of the support 200 are detachably mounted on the base 100 by bolts, and the second mounting hole 201 is located at the upper end face of the support 200.

[0040] The support 200 is in the shape of a Chinese character 'ji' and is detachably mounted on the base 100 by bolts, facilitating the installation of the lower end of the insulator 900, specifically, the support 200 is first detached from the base 100, the bottom end of the insulator 900, the support 200 and the first equalizing cover 300 are connected together by bolts, and then the support 200 is fixed on the base 100 by another bolt, avoiding the influence of the base 100 on the installation of the bolts connecting the bottom end of the insulator 900, the support 200 and the first equalizing cover 300, the support 200 is in the shape of a Chinese character 'ji', the upper concave part of the support 200 accommodates the head of the bolt, avoiding the influence of the bolt on the installation between the support 200 and the base 100.

[0041] Further, the hole diameters of the first mounting hole 301 and the second mounting hole 201 are the same.

[0042] Further, the hole diameters of the third mounting hole 501 and the fourth mounting hole 401 are the same.

[0043] The hole diameters of the first mounting hole 301, the second mounting hole 201 and the screw hole of the embedded nut at the lower end of the insulator 900 are the same, and after being connected by bolts, the connection is firm, and the same is true for the connection at the upper end of the insulator 900.

[0044] It is important to note that the construction and arrangements of the application shown in the various exemplary embodiments are illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications can be made to the embodiments without departing from the novel teachings and advantages of the subject matter described herein. For example, elements described as integrated in a single unit can be separated, elements described as separate can be integrated, and the position, number, shape, and arrangements of elements can be varied. Accordingly, all such modifications are intended to be included within the scope of the present inventive subject matter. The order or sequence of any process or method steps can be varied or re-sequenced without departing from the general nature of the claims. Any "means plus function" clauses are intended to cover the structures described herein as performing the recited functionality and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions can be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present inventive subject matter. Accordingly, the present inventive subject matter is not limited to the particular embodiments described and illustrated herein, but extends to equivalents of which the foregoing describes are intended to cover.

[0045] Furthermore, in order to provide a concise description of the exemplary embodiments, not all features of an actual implementation can be described (i.e., those pertaining to the

[0046] It is understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions can be made. Such development efforts can inevitably lead to a number of substitutions, modifications, changes, and omissions of parts illustrated as having a specific configuration. Such are the natural consequences of research and development efforts, and

[0047] It should be noted that the above examples are only used to illustrate the technical solutions of the present application but not limit the present application, and although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and all should be included in the scope of the claims of the present application.

Claims

1. An insulator support apparatus, characterized by: Comprising, a base (100); a support (200) fixed on the base (100), an outer cover of the support (200) being provided with a first equalizing cover (300); an adapter row (400) located at an upper portion of the support (200), an outer cover of the adapter row (400) being provided with a second equalizing cover (500).

2. The insulator support apparatus of claim 1, wherein: The first equalizing cover (300) is a reversed-bowl-shaped body, an upper end surface of the first equalizing cover (300) being provided with a first mounting hole (301), the support (200) being provided with a second mounting hole (201) adapted to the first mounting hole (301).

3. The insulator support apparatus of claim 2, wherein: The second equalizing cover (500) is a bowl-shaped body with an open upper end, a lower end surface of the second equalizing cover (500) being provided with a third mounting hole (501), the adapter row (400) being provided with a fourth mounting hole (401) adapted to the third mounting hole (501).

4. The insulator support apparatus of claim 3, wherein: The adapter row (400) is L-shaped, the fourth mounting hole (401) being located at a horizontal portion of the adapter row (400).

5. The insulator support apparatus of claim 4, wherein: A vertical portion of the adapter row (400) is located at a position directly below the opening of the second equalizing cover (500), the vertical portion of the adapter row (400) being provided with a connecting hole (402).

6. The insulator support apparatus of claim 5, wherein: The support (200) is a "U"-shaped body, two sides of the support (200) being detachably mounted on the base (100) by bolts, the second mounting hole (201) being located at an upper end surface of the support (200).

7. The insulator support apparatus of claim 6, wherein: The first mounting hole (301) and the second mounting hole (201) have the same hole diameter.

8. The insulator support apparatus of claim 7, wherein: The third mounting hole (501) and the fourth mounting hole (401) have the same hole diameter.

9. An insulator support arrangement according to claim 7 or 8, wherein: The support (200) is a conductor.

10. The insulator support apparatus of claim 9, wherein: The base (100) is a frame structure as a whole, and is a conductor.

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