Voltage transformer for simulating detection of SF6 gas humidity

Abstract

The present invention relates to a voltage transformer for simulating the detection of SF6 gas humidity, which includes a voltage transformer housing, a hollow connecting pipe, a humidity detector, a support plate, a positioning plate, a sealing flange, and an electrical connection terminal. Mainly through the arrangement of the hollow connecting pipe, the humidity detector, the support plate, the positioning plate, the sealing flange, and the electrical connection terminal, the humidity detector can be arranged inside the cavity of the hollow connecting pipe. In addition, the arrangement of the sealing flange can seal the voltage transformer housing and the hollow connecting pipe, thereby preventing leakage of SF6 gas, maintaining the sealing performance of the voltage transformer, and enabling the voltage transformer to meet sealing requirements. The voltage transformer can simulate the humidity and performance inside the voltage transformer, establish the relationship between the SF6 gas humidity and the voltage transformer performance, and enable staff to quickly troubleshoot whether the voltage transformer fault is caused by humidity, thereby improving the troubleshooting efficiency of the voltage transformer.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical components, and in particular to a voltage transformer for simulating and detecting SF6 gas humidity. Background Art

[0002] In GIS (Gas Insulated Switchgear) equipment, SF6 gas is usually filled into the GIS equipment to form an insulating environment inside the GIS equipment, so as to maintain good insulation between the internal components of the GIS equipment and ensure the safe operation of the GIS equipment.

[0003] As a key component of GIS equipment, voltage transformers are widely used for their functions, including power supply and measurement of line electrical parameters. Voltage transformers not only provide excellent circuit protection but also provide timely information on operating circuit electrical parameters, providing a valuable reference for circuit maintenance and improvement. Similarly, to maintain insulation, voltage transformers are filled with SF6 gas to prevent short circuits and other line faults.

[0004] Although SF6 gas provides excellent insulation in voltage transformers, humidity levels inevitably fluctuate during operation. Large humidity fluctuations can adversely affect the performance of the voltage transformer. Traditionally, when a voltage transformer malfunctions, it's difficult to pinpoint humidity, complicating troubleshooting. Establishing a relationship between humidity and voltage transformer performance would allow personnel to quickly determine if humidity is the cause of the problem, improving troubleshooting efficiency. Summary of the Invention

[0005] Based on this, it is necessary to provide a voltage transformer for simulating the detection of SF6 gas humidity. This voltage transformer can simulate the humidity and performance of the voltage transformer, establish the relationship between SF6 gas humidity and voltage transformer performance, and help personnel quickly troubleshoot whether humidity is the cause of voltage transformer faults, thereby improving the efficiency of voltage transformer troubleshooting.

[0006] In order to solve the above technical problems, the technical solution of the present invention is:

[0007] A voltage transformer for simulating the detection of SF6 gas humidity, comprising a voltage transformer housing, a hollow connecting pipe, a humidity detector, a supporting plate, a positioning plate, a sealing flange, and electrical connection terminals;

[0008] The voltage transformer housing is provided with a through hole, the hollow connecting tube extends from the surface of the voltage transformer housing, and the cavity of the hollow connecting tube is connected to the through hole; the support plate is fixed to the inner wall of the hollow connecting tube, the support plate is provided with a guide groove, the positioning plate is arranged in the guide groove, the humidity detector is fixed to the positioning plate, and the positioning plate can move along the guide groove to drive the humidity detector to move in the cavity of the hollow connecting tube;

[0009] The sealing flange is connected to the end of the hollow connecting pipe away from the voltage transformer housing for sealing the hollow connecting pipe; the electrical connection terminal is provided on the sealing flange, and the electrical connection terminal has a functional end and a control end, the functional end extends into the cavity of the hollow connecting pipe, and the control end extends in a direction away from the hollow connecting pipe, the functional end is electrically connected to the humidity detector, and the control end is used to be electrically connected to an external controller.

[0010] In one embodiment, the support plate has a mounting portion and a supporting portion, the mounting portion is fixed to the inner wall of the hollow connecting tube, the supporting portion extends from the mounting portion to support the positioning plate, and the guide groove is provided on the supporting portion.

[0011] In one embodiment, the support portion is parallel to the axis of the hollow connecting tube.

[0012] In one embodiment, a positioning slot is provided on the positioning plate, and the humidity detector is snapped into the positioning slot.

[0013] In one embodiment, the groove wall of the positioning groove is perpendicular to the axis of the hollow connecting tube.

[0014] In one embodiment, the positioning slot extends to the interior of the voltage transformer housing, and the detection end of the humidity detector is snapped into the positioning slot.

[0015] In one embodiment, the positioning plate has a raised portion, and the raised portion is connected to the support plate to make the positioning slot protrude from the support plate.

[0016] In one embodiment, the length of the guide groove is 75 mm to 85 mm.

[0017] In one embodiment, the length of the hollow connecting tube is 18 cm to 25 cm.

[0018] In one embodiment, the voltage transformer for simulating the detection of SF6 gas humidity further includes a locking plate, on which a locking slot is provided. Both ends of the locking plate are fixed to the positioning plate, and the locking slot is covered on the surface of the humidity detector.

[0019] In the above-mentioned voltage transformer for simulating the detection of SF6 gas humidity, the humidity detector can be set inside the cavity of the hollow connecting tube mainly by setting the hollow connecting tube, the humidity detector, the support plate, the positioning plate, the sealing flange and the electrical connection terminal. In addition, the voltage transformer housing and the hollow connecting tube can be sealed by setting the sealing flange to avoid leakage of SF6 gas, maintain the sealing performance of the voltage transformer, and enable the voltage transformer to meet the sealing requirements. Since the cavity of the hollow connecting tube is connected to the through hole on the voltage transformer housing, the humidity information of the SF6 gas inside the voltage transformer housing can be obtained by detecting the humidity detector. When using the above-mentioned voltage transformer for simulating the detection of SF6 gas humidity, the humidity detector is fixed on the positioning plate, the positioning plate is installed in the guide groove on the support plate, the humidity detector is electrically connected to the functional end of the electrical connection terminal, and the hollow connecting tube and the voltage transformer housing are sealed by the sealing flange. The control end of the electrical connection terminal is then electrically connected to an external controller, which controls the humidity detector or receives and displays the SF6 gas humidity information detected by the humidity detector. This simulates the humidity and performance inside the voltage transformer, establishes a relationship between SF6 gas humidity and voltage transformer performance, and allows personnel to quickly troubleshoot whether humidity is causing a fault in the voltage transformer, thereby improving the efficiency of voltage transformer troubleshooting. Furthermore, by moving the positioning plate within the guide groove on the support plate, the position of the humidity detector can be controlled, and the humidity at different locations inside the voltage transformer housing can be detected, which is beneficial for improving the accuracy of SF6 gas humidity information detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the structure of a voltage transformer for simulating detection of SF6 gas humidity in one embodiment of the present invention;

[0021] Figure 2 for Figure 1 A top view of the corresponding voltage transformer used to simulate the detection of SF6 gas humidity;

[0022] Figure 3 for Figure 1 The corresponding schematic diagram of the interior of the hollow connecting tube of the voltage transformer used to simulate the detection of SF6 gas humidity;

[0023] Figure 4 for Figure 1Schematic diagram of the structure of the support plate of the corresponding voltage transformer for simulating the detection of SF6 gas humidity, where (a) is the front view and (b) is the bottom view;

[0024] Figure 5 for Figure 1 Schematic diagram of the structure of the positioning plate of the corresponding voltage transformer for simulating the detection of SF6 gas humidity, where (a) is the main view and (b) is the bottom view;

[0025] Figure 6 for Figure 1 Schematic diagram of the structure of the locking plate of the corresponding voltage transformer for simulating the detection of SF6 gas humidity, where (a) is the main view and (b) is the bottom view.

[0026] Description of the marks in the figure:

[0027] 100. Voltage transformer for simulating the detection of SF6 gas humidity; 101. Voltage transformer housing; 102. Connecting flange; 1021. Connecting flange fixing hole; 103. Hollow connecting pipe; 1031. Fixing seat; 104. Sealing flange; 1041. Sealing flange fixing hole; 105. Electrical connection terminal; 1051. Functional end; 106. Adsorbent; 107. Stop valve; 108. Self-sealing joint; 109. Protective cap; 110. Insulator; 201. Humidity detector; 202. Support plate; 2021. Mounting portion; 2022. Support portion; 20221. Guide groove; 203. Positioning plate; 2031. Positioning slot; 2032. Raising portion; 204. Locking plate; 2041. Locking slot. DETAILED DESCRIPTION

[0028] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0030] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] See also Figures 1 to 6One embodiment of the present invention provides a voltage transformer 100 for simulating the detection of SF6 gas humidity. The voltage transformer 100 for simulating the detection of SF6 gas humidity includes a voltage transformer housing 101, a hollow connecting pipe 103, a humidity detector 201, a support plate 202, a positioning plate 203, a sealing flange 104, and an electrical connection terminal 105. The voltage transformer housing 101 is provided with a through hole (not shown in the figure). The hollow connecting pipe 103 extends from the surface of the voltage transformer housing 101, and the cavity of the hollow connecting pipe 103 is connected to the through hole. The support plate 202 is fixed to the inner wall of the hollow connecting pipe 103. The support plate 202 is provided with a guide groove 20221. The positioning plate 203 is disposed within the guide groove 20221. The humidity detector 201 is fixed to the positioning plate 203. The positioning plate 203 can move along the guide groove 20221 to drive the humidity detector 201 to move within the cavity of the hollow connecting pipe 103. The sealing flange 104 is connected to one end of the hollow connecting tube 103 away from the voltage transformer housing 101 for sealing the hollow connecting tube 103; the electrical connection terminal 105 is provided on the sealing flange 104, and the electrical connection terminal 105 has a functional end 1051 and a control end (not shown in the figure), the functional end 1051 extends into the cavity of the hollow connecting tube 103, and the control end extends in a direction away from the hollow connecting tube 103, the functional end 1051 is electrically connected to the humidity detector 201, and the control end is used to be electrically connected to an external controller.

[0033] In the voltage transformer 100 for simulating the detection of SF6 gas humidity in this embodiment, the humidity detector 201 can be set inside the cavity of the hollow connecting tube 103, mainly through the arrangement of the hollow connecting tube 103, the humidity detector 201, the support plate 202, the positioning plate 203, the sealing flange 104, and the electrical connection terminal 105. In addition, the sealing flange 104 can be used to seal the voltage transformer housing 101 and the hollow connecting tube 103, thereby preventing leakage of SF6 gas, maintaining the sealing performance of the voltage transformer, and enabling the voltage transformer to meet the sealing requirements. Because the cavity of the hollow connecting tube 103 is connected to the through hole on the voltage transformer housing 101, the humidity information of the SF6 gas inside the voltage transformer housing 101 can be detected by the humidity detector 201. When using the voltage transformer 100 of this embodiment for simulating the detection of SF6 gas humidity, the humidity detector 201 is fixed to the positioning plate 203, which is then installed in the guide groove 20221 on the support plate 202. The humidity detector 201 is electrically connected to the functional end 1051 of the electrical connection terminal 105, and the hollow connecting tube 103 and the voltage transformer housing 101 are sealed via the sealing flange 104. The control end of the electrical connection terminal 105 is then electrically connected to an external controller, which controls the humidity detector 201 or receives and displays SF6 gas humidity information detected by the humidity detector 201. This allows the humidity and performance inside the voltage transformer to be simulated, establishing a relationship between SF6 gas humidity and voltage transformer performance, allowing personnel to quickly troubleshoot whether humidity-related faults in the voltage transformer are causing them, and improving the efficiency of voltage transformer troubleshooting. Furthermore, by moving the positioning plate 203 in the guide groove 20221 on the support plate 202, the position of the humidity detector 201 can be controlled, and the humidity at different positions inside the voltage transformer housing 101 can be detected, which is conducive to improving the accuracy of SF6 gas humidity information detection.

[0034] Please refer again Figure 4 In a specific example, the support plate 202 includes a mounting portion 2021 and a support portion 2022. The mounting portion 2021 is fixed to the inner wall of the hollow connecting tube 103. The support portion 2022 extends from the mounting portion 2021 to support the positioning plate 203. A guide groove 20221 is provided on the support portion 2022. Furthermore, the support portion 2022 is parallel to the axis of the hollow connecting tube 103. The provision of the mounting portion 2021 allows the support portion 2022 to protrude from the inner wall of the hollow connecting tube 103, avoiding interference with the inner wall of the hollow connecting tube 103 and facilitating improved installation stability of the humidity detector 201. Furthermore, the support portion 2022 is disposed perpendicularly to the mounting portion 2021.

[0035] Specifically, the length of the guide groove 20221 is 75 mm to 85 mm. That is, the movement stroke of the positioning plate 203 along the guide groove 20221 is 75 mm to 85 mm. Optionally, the length of the guide groove 20221 is 75 mm, 76 mm, 77 mm, 78 mm, 79 mm, 80 mm, 81 mm, 82 mm, 83 mm, 84 mm, or 85 mm.

[0036] Please refer again Figure 5 In a specific example, the positioning plate 203 is provided with a positioning slot 2031, into which the humidity detector 201 is snapped. The provision of the positioning slot 2031 allows the humidity detector 201 to be more stably mounted on the positioning plate 203. Furthermore, the walls of the positioning slot 2031 are perpendicular to the axis of the hollow connecting tube 103. This further maintains the parallel arrangement of the humidity detector 201 and the inner wall of the hollow connecting tube 103, ensuring smoother movement of the humidity detector 201.

[0037] In a specific example, the positioning slot 2031 extends into the interior of the voltage transformer housing 101, and the detection end of the humidity detector 201 is snapped into the positioning slot 2031. In this case, the humidity information of the SF6 gas inside the voltage transformer housing 101 can be directly detected by the humidity detector 201.

[0038] Please refer again Figure 5 In one specific example, the positioning plate 203 has a raised portion 2032 connected to the support plate 202 to allow the positioning slot 2031 to protrude from the support plate 202. The provision of the raised portion 2032 allows the positioning slot 2031 to protrude from the support plate 202, effectively preventing the humidity detector 201 from colliding with components within the hollow connecting tube 103 during movement. Furthermore, the raised portion 2032 is fixedly connected to the support portion 2022 of the support plate 202. It will be appreciated that the raised portion 2032 can be fixedly connected to the support portion 2022 of the support plate 202 through the engagement of a screw and nut assembly.

[0039] Please refer again Figure 3 and Figure 6In a specific example, the voltage transformer 100 for simulating the detection of SF6 gas humidity further includes a locking plate 204, on which a locking slot 2041 is provided. Both ends of the locking plate 204 are fixed to the positioning plate 203, and the locking slot 2041 covers the surface of the humidity detector 201. The provision of the locking plate 204 allows the humidity detector 201 to be more stably fixed to the positioning plate 203. Furthermore, the position of the humidity detector 201 can be further fixed by the clamping effect of the locking slot 2041. Specifically, both ends of the locking plate 204 are fixed to the raised portion 2032 of the positioning plate 203. It is understandable that the two ends of the locking plate 204 can be fixedly connected to the raised portion 2032 of the positioning plate 203 by the cooperation of the screw and nut assembly.

[0040] In a specific example, the locking slot 2041 is staggered with the positioning slot 2031. Furthermore, the locking slot 2041 is completely staggered with the positioning slot 2031.

[0041] Please refer again Figures 1 to 3 In a specific example, a voltage transformer 100 for simulating the detection of SF6 gas humidity further includes a connecting flange 102, which is disposed at the outer edge of the through hole and located outside the voltage transformer housing 101. The connecting flange 102 is fixedly connected to an end of a hollow connecting pipe 103 proximal to the voltage transformer housing 101 to secure the hollow connecting pipe 103 to the voltage transformer housing 101. The provision of the connecting flange 102 makes it more convenient to connect the hollow connecting pipe 103 to the exterior of the voltage transformer housing 101.

[0042] Furthermore, the connecting flange 102 and the hollow connecting tube 103 are integrally formed. This integrally formed structure facilitates processing and molding, effectively improves the airtightness between the connecting flange 102 and the hollow connecting tube 103, and facilitates connection to the voltage transformer housing 101, thereby improving the airtightness between the hollow connecting tube 103 and the voltage transformer housing 101.

[0043] In a specific example, a fixing seat 1031 is provided at one end of the hollow connecting tube 103 near the sealing flange 104. The fixing seat 1031 protrudes from the outer edge of the connecting tube for connection with the sealing flange 104. The provision of the fixing seat 1031 allows for a stable connection between the hollow connecting tube 103 and the sealing flange 104, thereby securing the hollow connecting tube 103 and the sealing flange 104. It will be appreciated that the protrusion of the fixing seat 1031 from the outer edge of the hollow connecting tube 103 facilitates mating connection with the sealing flange 104. Optionally, the outer diameter of the fixing seat 1031 is equal to the outer diameter of the sealing flange 104.

[0044] Furthermore, the fixing base 1031 and the hollow connecting tube 103 are integrally formed. This integrally formed structure facilitates processing and molding, effectively improves the airtightness between the fixing base 1031 and the hollow connecting tube 103, and facilitates connection with the sealing flange 104, thereby improving the overall sealing of the voltage transformer housing 101, the hollow connecting tube 103, the fixing base 1031, and the sealing flange 104.

[0045] In a specific example, the outer diameter of the sealing flange 104 is smaller than the outer diameter of the connecting flange 102. It will be appreciated that both the sealing flange 104 and the connecting flange 102 are provided with a plurality of fixing holes for passing fixing members. When installing the sealing flange 104 and the connecting flange 102, the connecting flange 102 is mounted to the voltage transformer housing 101 by inserting the fixing members into the fixing holes, and the sealing flange 104 is mounted to the connecting pipe by inserting the fixing members into the fixing holes. For the purpose of distinction, the fixing holes on the connecting flange 102 are referred to as the connecting flange fixing holes 1021, and the fixing holes on the sealing flange 104 are referred to as the sealing flange fixing holes 1041. It will be appreciated that the fixing members may be screws, bolts, pins, etc.

[0046] In a specific example, the connecting flange fixing holes 1021 on the connecting flange 102 are distributed around the center of the connecting flange 102, and the sealing flange fixing holes 1041 on the sealing flange 104 are distributed around the center of the sealing flange 104. Furthermore, the connecting flange fixing holes 1021 on the connecting flange 102 are evenly distributed around the center of the connecting flange 102, and the sealing flange fixing holes 1041 on the sealing flange 104 are evenly distributed around the center of the sealing flange 104. Furthermore, the number of connecting flange fixing holes 1021 on the connecting flange 102 is an even number, and the number of sealing flange fixing holes 1041 on the sealing flange 104 is an even number. Furthermore, the number of sealing flange fixing holes 1041 on the sealing flange 104 is twice the number of connecting flange fixing holes 1021 on the connecting flange 102. Furthermore, the distance between two adjacent sealing flange fixing holes 1041 on the sealing flange 104 is half the distance between two adjacent connecting flange fixing holes 1021 on the connecting flange 102. Furthermore, the connecting flange fixing holes 1021 on the connecting flange 102 are evenly distributed around the electrical connection terminals 105 , and the sealing flange fixing holes 1041 on the sealing flange 104 are evenly distributed around the electrical connection terminals 105 .

[0047] exist Figure 1In the illustrated voltage transformer 100 for simulating SF6 gas humidity detection, the number of connecting flange fixing holes 1021 on the connecting flange 102 is four, and the number of sealing flange fixing holes 1041 on the sealing flange 104 is eight. The four connecting flange fixing holes 1021 on the connecting flange 102 are evenly distributed around the electrical connection terminal 105, and the eight sealing flange fixing holes 1041 on the sealing flange 104 are evenly distributed around the electrical connection terminal 105.

[0048] In a specific example, the length of the hollow connecting tube 103 is 18 cm to 25 cm. Optionally, the length of the hollow connecting tube 103 is 18 cm, 19 cm, 20 cm, 21 cm, 22 cm, 23 cm, 24 cm or 25 cm. Preferably, the length of the hollow connecting tube 103 is 20 cm. It will be understood that the length of the hollow connecting tube 103 can be arbitrarily selected from the length ranges and length point values ​​listed above, that is, the length of the hollow connecting tube 103 can be any length from 18 cm to 25 cm, and is not limited to 18 cm, 19 cm, 20 cm, 21 cm, 22 cm, 23 cm, 24 cm or 25 cm.

[0049] Please refer again Figure 1 In a specific example, the voltage transformer 100 for simulating SF6 gas humidity detection further includes an adsorber 106 located within the voltage transformer housing 101. The adsorber 106 can adsorb moisture and / or impurity gases within the voltage transformer, maintaining a stable SF6 gas state within the voltage transformer. It is understood that the adsorber 106 contains an adsorbent.

[0050] Furthermore, the adsorber 106 is closer to the top of the voltage transformer housing 101 than the through-hole. Placing the adsorber 106 closer to the top of the voltage transformer housing 101 facilitates installation and effectively maintains the proper installation of the voltage transformer 100 for simulating SF6 gas humidity detection. Furthermore, the adsorber 106 is closer to the top of the voltage transformer housing 101 than the through-hole, and is located within the voltage transformer housing 101 where no other electrical components are present. This prevents interference with the normal operation of these components, allowing the adsorber 106 to be more fully utilized.

[0051] Please refer again Figure 1 In a specific example, a voltage transformer 100 for simulating SF6 gas humidity detection further includes an insulator 110 located on top of the voltage transformer housing 101. Insulator 110 is located on top of the voltage transformer housing 101 to improve insulation between the interior of the voltage transformer housing 101 and the external environment. Furthermore, insulator 110 is a pot-type insulator.

[0052] In a specific example, a voltage transformer 100 for simulating SF6 gas humidity detection further includes a shutoff valve 107 located outside the voltage transformer housing 101. This shutoff valve 107 is used to connect and isolate the interior and exterior of the voltage transformer housing 101. The provision of shutoff valve 107 allows SF6 gas to be introduced into or removed from the voltage transformer housing 101. Furthermore, shutoff valve 107 exhibits excellent sealing properties, effectively maintaining the tightness of the voltage transformer housing 101.

[0053] It is understood that the voltage transformer 100 for simulating the detection of SF6 gas humidity also includes a self-sealing joint 108, which is mounted on the stop valve 107. The provision of the self-sealing joint 108 can further improve the sealing performance of the stop valve 107. Furthermore, the voltage transformer for simulating the detection of SF6 gas humidity also includes a protective cap 109. The protective cap 109 is disposed on the self-sealing joint 108. The protective cap 109 ensures a more stable installation of the self-sealing joint 108 on the stop valve 107. It is understood that the protective cap 109 can be, but is not limited to, a nut.

[0054] It can be understood that the voltage transformer 100 for simulating the detection of SF6 gas humidity also includes indispensable electrical components of the voltage transformer, so as to better simulate the actual use of the voltage transformer.

[0055] It can also be understood that the voltage transformer 100 for simulating the detection of SF6 gas humidity also includes multiple connecting components, such as screw-nut connecting components, and the components that need to be connected in the voltage transformer 100 for simulating the detection of SF6 gas humidity are connected through the setting of the connecting components.

[0056] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The above-described embodiments merely represent several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art may make a number of variations and improvements without departing from the spirit of the present invention, and these variations and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be based on the appended claims, and the description and drawings may be used to interpret the content of the claims.

Claims

1. A voltage transformer for simulating the detection of SF6 gas humidity, characterized in that: It includes a voltage transformer housing, a hollow connecting pipe, a humidity detector, a supporting plate, a positioning plate, a sealing flange and an electrical connection terminal; The voltage transformer housing is provided with a through hole, the hollow connecting tube extends from the surface of the voltage transformer housing, the length of the hollow connecting tube is 18 cm to 25 cm, and the cavity of the hollow connecting tube is connected to the through hole; the support plate is fixed to the inner wall of the hollow connecting tube, the support plate is provided with a guide groove, the length of the guide groove is 75 mm to 85 mm, the positioning plate is arranged in the guide groove, the humidity detector is fixed to the positioning plate, and the positioning plate can move along the guide groove to drive the humidity detector to move in the cavity of the hollow connecting tube; The sealing flange is connected to the end of the hollow connecting pipe away from the voltage transformer housing for sealing the hollow connecting pipe; the electrical connection terminal is provided on the sealing flange, and the electrical connection terminal has a functional end and a control end, the functional end extends into the cavity of the hollow connecting pipe, and the control end extends in a direction away from the hollow connecting pipe, the functional end is electrically connected to the humidity detector, and the control end is used to be electrically connected to an external controller.

2. The voltage transformer for simulating detection of SF6 gas humidity according to claim 1, characterized in that: The support plate has a mounting portion and a supporting portion, the mounting portion is fixed to the inner wall of the hollow connecting tube, the supporting portion extends from the mounting portion to support the positioning plate, and the guide groove is provided on the supporting portion.

3. The voltage transformer for simulating detection of SF6 gas humidity according to claim 2, characterized in that: The supporting portion is parallel to the axis of the hollow connecting tube.

4. The voltage transformer for simulating detection of SF6 gas humidity according to claim 1, characterized in that: The positioning plate is provided with a positioning slot, and the humidity detector is snapped into the positioning slot.

5. The voltage transformer for simulating detection of SF6 gas humidity according to claim 4, characterized in that: The groove wall of the positioning groove is perpendicular to the axis of the hollow connecting pipe.

6. The voltage transformer for simulating detection of SF6 gas humidity according to claim 4, characterized in that: The positioning slot extends to the interior of the voltage transformer housing, and the detection end of the humidity detector is clamped in the positioning slot.

7. The voltage transformer for simulating detection of SF6 gas humidity according to claim 4, characterized in that: The positioning plate has a raised portion, and the raised portion is connected to the support plate to make the positioning slot protrude from the support plate.

8. The voltage transformer for simulating detection of SF6 gas humidity according to any one of claims 1 to 7, characterized in that: It also includes a locking plate, which is provided with a locking slot. Both ends of the locking plate are fixed to the positioning plate, and the locking slot is covered on the surface of the humidity detector.

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