An alarm device and method for identifying metal vaporization in electrical equipment

Abstract

The present disclosure provides an alarm device and method for identifying metal vapor on electrical equipment, comprising an insulating member, wherein at least two parallel conductive elements are embedded on the insulating member, wherein one conductive element of two adjacent conductive elements is connected to the positive pole of a power source, and the other conductive element is connected to the negative pole of the power source; at least one indicator light is connected in series in a loop formed by the power source and the two conductive elements, and the degree of metal vapor coverage on the insulating member is judged according to the on and off of the indicator light; the present disclosure arranges conductive elements at intervals on the surface of the insulating member, and when metal vapor coverage occurs, the indicator light is always on, so that the degree of metal vapor coverage on the insulating member can be discovered in time, which greatly improves the maintenance efficiency and accuracy of maintenance personnel.

Description

Technical Field

[0001] The present disclosure relates to the technical field of electric power engineering, and in particular to an alarm device and method for identifying metal vapors in electrical equipment. Background Art

[0002] The statements in this section merely provide background art related to the present disclosure and do not necessarily constitute prior art.

[0003] Insulating members or insulating connectors are provided between each terminal on the terminal block of the electrical equipment, and the terminal block of each electrical equipment is also provided as a whole on an insulating substrate, thereby ensuring electrical insulation between each terminal block.

[0004] When the terminal block is broken down and burned by high voltage, an instantaneous temperature of thousands of degrees will be generated. Because the wiring terminals are made of metal conductive material, they will vaporize under high temperature conditions to produce metal vapor. The metal vapor will adhere to the insulating parts, making the insulating parts conductive. If the metal vapor is not cleaned after the maintenance is completed, electrical connection between the terminals is likely to occur when power is turned on, resulting in secondary breakdown.

[0005] The inventors of the present disclosure have discovered that the existing method is that after the maintenance personnel have completed the maintenance, they use a blade to scrape the insulating parts to remove the metal vapor on the surface of the insulating parts. However, this manual processing method cannot guarantee whether the scraping is clean, that is, the maintenance personnel cannot determine whether there is any metal vapor remaining after scraping, which may cause extremely high risks when power is turned on. In the case of residual metal vapor, even if no secondary breakdown occurs at the time, it is easy for the insulating parts to conduct electricity during the subsequent long-term operation, thereby causing further secondary hazards. Summary of the invention

[0006] In order to address the deficiencies in the prior art, the present disclosure provides an alarm device and method for identifying metal vapor in electrical equipment. By arranging conductive elements at intervals on the surface of an insulating part, an indicator light is always on when metal vapor coverage occurs, so that the degree of metal vapor coverage on the insulating part can be detected in time, greatly improving the maintenance efficiency and accuracy of maintenance personnel.

[0007] In order to achieve the above objectives, the present disclosure adopts the following technical solutions:

[0008] A first aspect of the present disclosure provides an alarm device for identifying metal vapors in electrical equipment.

[0009] An alarm device for identifying metal vapors in electrical equipment, comprising an insulating member, wherein at least two parallel conductive elements are embedded in the insulating member, wherein one conductive element of two adjacent conductive elements is connected to a positive electrode of a power source, and the other conductive element is connected to a negative electrode of the power source;

[0010] At least one alarm module is connected in series in the loop formed by the power supply and the two conductive elements, and the coverage degree of the metal vapor on the insulating part is determined according to the alarm result.

[0011] As some possible implementations, two sides of the insulating member are wiring terminals of different phases or the same phase.

[0012] As a further limitation, the conductive element is disposed on an upper surface of the insulating member between two adjacent connecting terminals.

[0013] As some possible implementations, a plurality of parallel grooves are formed on the surface of the insulating member, and the conductive elements are embedded and fixed in the grooves.

[0014] As a further limitation, the depth of the groove is greater than the maximum outer diameter of the conductive element.

[0015] As a further limitation, the conductive element and the insulating member are integrally formed.

[0016] As a further limitation, the intervals between the parallel grooves are the same and are smaller than a preset threshold.

[0017] As some possible implementations, the conductive element is a wire.

[0018] A second aspect of the present disclosure provides an alarm method for identifying metal vapor in electrical equipment.

[0019] An alarm method for identifying metal vapor in electrical equipment, using the alarm device described in the first aspect of the present disclosure, comprises the following steps:

[0020] When a high voltage leakage breakdown occurs in electrical equipment, replace the electrical equipment connectors and wiring with new ones;

[0021] When at least one alarm module gives an alarm, it is determined that the insulating member is covered with residual metal vapor, causing a partial area of ​​the insulating member to be conductive.

[0022] As some possible implementations, at least three levels of alarm are set;

[0023] When only two adjacent conductive elements are electrically connected, a three-level alarm is issued, the alarm insulation is marked with the alarm level and alarm position, and the position between the two alarm conductive elements is manually scraped or replaced;

[0024] When multiple adjacent conductive elements are electrically connected, a secondary alarm is issued, the alarm insulation is marked with the alarm level and alarm position, and the position between the two alarm conductive elements is manually scraped or replaced;

[0025] When the indicator lights corresponding to the two conductive elements with the farthest adjacent distance to the insulating part are both on, a first-level alarm is issued, the alarm insulating part is marked with the alarm level and alarm position, and the insulating part is replaced.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] 1. The device and method disclosed in the present invention, by setting conductive elements at intervals on the surface of the insulating part, when metal vapor coverage occurs, the indicator light is always on, so that the degree of metal vapor coverage on the insulating part can be discovered in time, which greatly improves the maintenance efficiency and accuracy of maintenance personnel.

[0028] 2. The device and method disclosed in the present invention can evaluate the conductivity of insulating parts in a graded manner, effectively ensure the insulation performance of insulating parts, replace insulating parts that seriously fail to meet the requirements, and greatly improve the safety performance of power equipment.

[0029] Advantages of additional aspects of the present disclosure will be given in part in the following description and in part will become apparent from the following description or will be learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings constituting a part of the present disclosure are used to provide a further understanding of the present disclosure. The illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation on the present disclosure.

[0031] Figure 1 This is a schematic diagram of the structure of an alarm device for identifying metal vapors in electrical equipment provided in Example 1 of the present disclosure.

[0032] Figure 2 This is a schematic diagram of the structure of the terminal block provided in Example 1 of the present disclosure.

[0033] Figure 3 This is a schematic diagram of the structure of the terminal block provided in Example 2 of the present disclosure.

[0034] 1-Insulation; 2-Wire; 3-Power supply; 4-Indicator light. DETAILED DESCRIPTION

[0035] The present disclosure is further described below in conjunction with the accompanying drawings and embodiments.

[0036] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present disclosure. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present disclosure belongs.

[0037] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present disclosure. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0038] In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present disclosure, and do not specifically refer to any part or element in the present disclosure and should not be understood as limitations on the present disclosure.

[0039] In the present disclosure, terms such as "fixed connection", "connected", "connection", etc. should be understood in a broad sense, indicating that it can be fixedly connected, integrally connected or detachably connected; it can be directly connected or indirectly connected through an intermediate medium. For relevant scientific research or technical personnel in this field, the specific meanings of the above terms in the present disclosure can be determined according to specific circumstances, and they cannot be understood as limitations on the present disclosure.

[0040] In the absence of conflict, the embodiments in the present disclosure and the features in the embodiments may be combined with each other.

[0041] Embodiment 1:

[0042] like Figure 1 As shown, Embodiment 1 of the present disclosure provides an alarm device for identifying metal vapors in electrical equipment, comprising an insulating member, wherein four parallel conductive elements are embedded in the insulating member, wherein one conductive element of two adjacent conductive elements is connected to the positive electrode of a power source, and the other conductive element is connected to the negative electrode of the power source;

[0043] An indicator light is connected in series in the loop formed by the power supply and the two conductive elements, and the degree of metal vapor coverage on the insulating part is judged according to the on and off of the indicator light.

[0044] It is understandable that in some other embodiments, the indicator light may be replaced by a buzzer, or both the indicator light and the buzzer may be provided. Those skilled in the art may make a selection according to specific working conditions, which will not be elaborated here.

[0045] It is understandable that in some other embodiments, the conductive elements may also be two, three, five or more. Those skilled in the art may select and design them according to specific working conditions, which will not be elaborated here.

[0046] It can be understood that in some other embodiments, the indicator lights may be two, three or more, the indicator lights between every two adjacent conductive elements are of the same color, and the indicator lights between different adjacent conductive elements are of different colors.

[0047] In this embodiment, the two sides of the insulating member are connected with wiring terminals of different phases or the same phase. Specifically, the wiring terminals of phase A, phase B and phase C are separated by insulating plates.

[0048] The conductive element is arranged on the upper surface of the insulating plate between two adjacent connecting terminals.

[0049] In this embodiment, a plurality of parallel grooves along the edge direction are formed on the upper surface of the insulating plate, and the conductive elements are embedded and fixed in the grooves.

[0050] In this embodiment, the depth of the groove is greater than the maximum outer diameter of the conductive element, which prevents the conductive elements in each groove from being connected when not covered by metal vapor, thereby improving the safety performance of the insulating plate.

[0051] It can be understood that in some other embodiments, the conductive element and the insulating component are integrally formed, and the conductive element is embedded in the process of preparing the insulating component.

[0052] In this embodiment, the spacing between each parallel groove is the same, and the spacing is less than a preset threshold. The setting of the threshold is designed according to specific working conditions. The spacing cannot be too small to prevent direct connection between each conductive element, and the spacing cannot be too large to prevent a reduction in the coverage sensitivity to metal vapor.

[0053] In this embodiment, the conductive element is a bare copper wire. It is understandable that in some other embodiments, the conductive element may also be a bare aluminum wire, or a conductive rod made of copper or aluminum.

[0054] Embodiment 2:

[0055] like Figure 1 and Figure 3 As shown, embodiment 2 of the present disclosure provides an alarm device for identifying metal vapors in electrical equipment, in which the individual terminals on the terminal row are not only separated by individual insulating plates, but also two adjacent rows of insulating plates are separated by an integral insulating plate, and the upper surfaces of all insulating plates are provided with parallel conductive elements spaced a preset distance apart. The other structures are the same as those provided in embodiment 1 and will not be repeated here.

[0056] Embodiment 3:

[0057] Embodiment 3 of the present disclosure provides an alarm method for identifying metal vapor in electrical equipment, using the alarm device described in Embodiment 1 or Embodiment 2 of the present disclosure, including the following steps:

[0058] When a high voltage leakage breakdown occurs in electrical equipment, replace the electrical equipment connectors and wiring with new ones;

[0059] When at least one indicator light is on, it is determined that the insulating member is covered with residual metal vapor, causing a partial area of ​​the insulating member to be conductive.

[0060] As some possible implementation methods, three levels of alarm are set;

[0061] When only two adjacent conductive elements are electrically connected, a three-level alarm is issued, the alarm insulation is marked with the alarm level and alarm position, and the position between the two alarm conductive elements is manually scraped or replaced;

[0062] When multiple adjacent conductive elements are electrically connected, a secondary alarm is issued, the alarm insulation is marked with the alarm level and alarm position, and the position between the two alarm conductive elements is manually scraped or replaced;

[0063] When the indicator lights corresponding to the two conductive elements with the farthest adjacent distance to the insulating part are both on, a first-level alarm is issued, the alarm insulating part is marked with the alarm level and alarm position, and the insulating part is replaced.

[0064] It is understandable that in some other embodiments, more levels of alarms can be set, such as level four alarms, level five alarms, etc. Those skilled in the art can set the alarm levels according to the number of conductive elements set on the surface of the specific insulating part, which will not be repeated here.

[0065] The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. For those skilled in the art, the present disclosure may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. An alarm device for identifying metal vapors in electrical equipment, characterized in that: It comprises an insulating member, wherein a plurality of parallel conductive elements are embedded in the insulating member, wherein one conductive element of two adjacent conductive elements is connected to the positive electrode of the power supply, and the other conductive element is connected to the negative electrode of the power supply; At least one alarm module is connected in series in the loop formed by the power supply and the two conductive elements, and the coverage degree of the metal vapor on the insulating part is determined according to the alarm result; Set at least three levels of alarm; When only two adjacent conductive elements are electrically connected, a three-level alarm is issued, the alarm insulation is marked with the alarm level and alarm position, and the position between the two alarm conductive elements is manually scraped or replaced; When multiple adjacent conductive elements are electrically connected, a secondary alarm is issued, the alarm insulation is marked with the alarm level and alarm position, and the position between the two alarm conductive elements is manually scraped or replaced; When the indicator lights corresponding to the two conductive elements with the farthest adjacent distance to the insulating part are both on, a first-level alarm is issued, the alarm insulating part is marked with the alarm level and alarm position, and the insulating part is replaced.

2. The alarm device for identifying metal vapors in electrical equipment according to claim 1, characterized in that: The two sides of the insulating member are respectively connected with wiring terminals of different phases or the same phase.

3. The alarm device for identifying metal vapors in electrical equipment according to claim 2, characterized in that: The conductive element is arranged on the upper surface of the insulating member between two adjacent connecting terminals.

4. The alarm device for identifying metal vapors in electrical equipment according to claim 1, characterized in that: A plurality of parallel grooves are formed on the surface of the insulating member, and the conductive elements are embedded and fixed in the grooves.

5. The alarm device for identifying metal vapors in electrical equipment according to claim 4, characterized in that: The depth of the groove is greater than the maximum outer diameter of the conductive element.

6. The alarm device for identifying metal vapors in electrical equipment according to claim 4, characterized in that: The conductive element and the insulating member are integrally formed.

7. The alarm device for identifying metal vapors in electrical equipment according to claim 4, characterized in that: The intervals between the parallel grooves are the same and are smaller than a preset threshold.

8. The alarm device for identifying metal vapor in electrical equipment according to claim 1, characterized in that: The conductive element is a wire.

9. An alarm method for identifying metal vapors in electrical equipment, using the alarm device according to any one of claims 1 to 8, characterized in that: The following steps are involved: When a high voltage leakage breakdown occurs in electrical equipment, replace the electrical equipment connectors and wiring with new ones; When at least one alarm module gives an alarm, it is determined that the insulating member is covered with residual metal vapor, causing a partial area of ​​the insulating member to be conductive.

10. The alarm method for identifying metal vapor in electrical equipment according to claim 9, characterized in that: Set at least three levels of alarm; When only two adjacent conductive elements are electrically connected, a three-level alarm is issued, the alarm insulation is marked with the alarm level and alarm position, and the position between the two alarm conductive elements is manually scraped or replaced; When multiple adjacent conductive elements are electrically connected, a secondary alarm is issued, the alarm insulation is marked with the alarm level and alarm position, and the position between the two alarm conductive elements is manually scraped or replaced; When the indicator lights corresponding to the two conductive elements with the farthest adjacent distance to the insulating part are both on, a first-level alarm is issued, the alarm insulating part is marked with the alarm level and alarm position, and the insulating part is replaced.

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