Lightning arrester on-line monitor

Abstract

The utility model relates to the technical field of monitors, in particular to a lightning arrester on-line monitor which comprises a monitor shell, an outer edge is arranged on the outer side wall of one end of the monitor shell, a closed disc is arranged at one end of the monitor shell, the closed disc and the outer edge are fixedly installed through a plurality of screws, and a high-voltage end rod is fixedly connected to the middle position of one side of the closed disc. An external assembly is arranged on the outer side of one end of the monitor shell, the external assembly comprises an outer ring frame and an auxiliary ring frame, two fixing flanges are arranged on the outer side wall of the outer ring frame, the fixing flanges can be installed on a fixing frame on a lightning arrester, and a leading-out frame is fixedly installed at one end of the high-voltage end rod. According to the utility model, through the buckling arrangement of the auxiliary ring frame and the outer ring frame, the outer edge and the sealing disc are protected, the risk that rainwater erodes and permeates from a gap between the outer edge and the sealing disc is reduced, the protection on the monitor shell is increased, and meanwhile, the screws on the outer edge and the sealing disc can be protected; and the sealing disc can be conveniently assembled and disassembled during subsequent maintenance.

Description

Technical Field

[0001] This utility model relates to the field of monitoring instrument technology, specifically to an online monitoring instrument for surge arresters. Background Technology

[0002] The surge arrester online monitoring instrument is used in conjunction with zinc oxide surge arresters in high-voltage AC power systems. This instrument is connected in series in the surge arrester's grounding circuit. The milliammeter in the monitoring instrument monitors the leakage current (peak value) through the surge arrester under operating voltage, which can determine whether the surge arrester is damp or if any components are abnormal. The action counter records the number of overvoltage actions of the surge arrester. Surge arrester online monitoring is generally directly installed on the surge arrester's operating point, and is directly exposed to the outdoor environment during use, making it susceptible to rain corrosion. Therefore, a surge arrester online monitoring instrument that reduces the impact of rain corrosion is proposed. Utility Model Content

[0003] The purpose of this utility model is to provide an online monitoring instrument for surge arresters. By using the interlocking arrangement between the secondary ring frame and the outer ring frame, protection is provided between the outer edge and the closed plate, reducing the risk of rainwater erosion and seepage through the gap between the outer edge and the closed plate, and increasing the protection of the monitoring instrument housing, thereby solving the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An online surge arrester monitoring instrument includes a monitoring instrument housing. One end of the outer wall of the monitoring instrument housing has an outer edge. One end of the monitoring instrument housing has a sealing plate, which is fixedly installed to the outer edge by multiple screws. A high-voltage end rod is fixedly connected to the middle of one side of the sealing plate. An external assembly is provided on the outer side of one end of the monitoring instrument housing. The external assembly includes an outer ring frame and a secondary ring frame. The outer wall of the outer ring frame has two fixing flanges, which can be installed with the fixing frame on the surge arrester.

[0006] Furthermore, one end of the high-voltage end rod is fixedly equipped with a lead-out bracket, and one end of the lead-out bracket is equipped with a wiring bolt.

[0007] Furthermore, an insulator is fitted into the middle position of the high-voltage end rod.

[0008] Furthermore, the sub-ring frame has a notch at its bottom end and an annular portion at its middle position, with a rubber ring fixed to one end of the annular portion.

[0009] Furthermore, the sub-ring frame is fastened to the outer ring frame, the outer side wall of the outer ring frame is fixedly connected with multiple threaded seats, and the sub-ring frame is connected to the ring-shaped part by screws.

[0010] Furthermore, one end of the fixed flange is rotatably connected to the outer ring frame, a fixed rod is fixedly connected between the other ends of the two fixed flanges, a sleeve rod is fixedly connected at the middle position of the fixed rod, a sliding rod is slidably inserted into the sleeve rod, a fastening knob is screwed onto the outer wall of one end of the sleeve rod, and a grounding bolt is installed at the other end of the fixed flange.

[0011] Furthermore, one end of the slide rod is fixedly connected to a support plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The interlocking mechanism between the sub-ring frame and the outer ring frame provides protection between the outer edge and the sealing plate, reducing the risk of rainwater erosion and seepage through the gap between the outer edge and the sealing plate, increasing the protection of the monitoring instrument housing, and also protecting the screws on the outer edge and the sealing plate, making it convenient to install and remove the sealing plate during subsequent maintenance.

[0014] 2. By setting up the sleeve rod and slide rod, the slide rod supports the monitoring instrument housing. By adjusting the extension length of the slide rod, the tilt angle of the monitoring instrument housing can be adjusted, which facilitates the installation and fixing of the fixed flange and the surge arrester base. After that, the tilt angle of the monitoring instrument housing can be adjusted as needed, so that the instrument panel on the monitoring instrument is easy to observe. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall side view structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the overall installation state of this utility model;

[0018] Figure 4 This is a schematic diagram of the external components and the enclosed disk of this utility model;

[0019] Figure 5 This is a schematic diagram of the outer ring frame and the secondary ring frame structure in this utility model.

[0020] In the diagram: 100, Monitor housing; 110, Outer edge; 120, Enclosed disc; 130, High-voltage end rod; 131, Insulator; 140, Lead-out frame; 141, Wiring bolt; 200, External assembly; 210, Outer ring frame; 211, Threaded seat; 220, Secondary ring frame; 221, Ring-shaped part; 222, Notch part; 230, Fixed flange; 240, Fixed rod; 250, Sleeve rod; 251, Sliding rod; 252, Support plate; 253, Fastening knob; 260, Grounding bolt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4 In this embodiment of the utility model, the surge arrester online monitoring instrument includes a monitoring instrument housing 100. An outer edge 110 is provided on the outer side wall of one end of the monitoring instrument housing 100. A sealing plate 120 is provided on one end of the monitoring instrument housing 100. The sealing plate 120 and the outer edge 110 are fixedly installed by multiple screws. A high-voltage end rod 130 is fixedly connected to the middle position of one side of the sealing plate 120. An external component 200 is provided on the outer side of one end of the monitoring instrument housing 100. The external component 200 includes an outer ring frame 210 and a secondary ring frame 220. Two fixing flanges 230 are provided on the outer side wall of the outer ring frame 210. The fixing flanges 230 can be installed with the fixing frame on the surge arrester. A lead-out frame 140 is fixedly installed on one end of the high-voltage end rod 130. A wiring bolt 141 is installed on one end of the lead-out frame 140. An insulator 131 is sleeved and installed in the middle position of the high-voltage end rod 130. A grounding bolt 260 is installed on the other end of the fixing flange 230.

[0023] Specifically, the monitor is connected in series between the surge arrester and the ground. The monitor is fixed near the base of the surge arrester in a position that is easy to observe by grounding bolt 260. At the same time, grounding bolt 260 serves as the grounding terminal. Grounding bolt 260 is in a conductive state with monitor housing 100 through fixing flange 230, outer ring frame 210, and grounding of monitor housing 100. Wiring bolt 141 is connected to surge arrester.

[0024] Example 1

[0025] like Figure 5 As shown, in this embodiment, the bottom end of the sub-ring frame 220 is provided with a notch 222, and the middle position of the sub-ring frame 220 is provided with an annular part 221. One end of the annular part 221 is fixedly connected with a rubber ring. The sub-ring frame 220 is fastened to the outer ring frame 210. Multiple threaded seats 211 are fixedly connected to the outer side wall of the outer ring frame 210. The sub-ring frame 220 and the annular part 221 are connected by screws.

[0026] In this embodiment, the interlocking arrangement between the secondary ring frame 220 and the outer ring frame 210 provides protection between the outer edge 110 and the closed disc 120, reducing the risk of rainwater erosion and penetration through the gap between the outer edge 110 and the closed disc 120, and increasing the protection of the monitoring device housing 100.

[0027] like Figure 5 As shown, in this embodiment, one end of the fixed flange 230 is rotatably connected to the outer ring frame 210, and a fixed rod 240 is fixedly connected between the other ends of the two fixed flanges 230. A sleeve rod 250 is fixedly connected at the middle position of the fixed rod 240, and a slide rod 251 is slidably inserted into the sleeve rod 250. A fastening knob 253 is screwed onto the outer wall of one end of the sleeve rod 250, and a support plate 252 is fixedly connected to one end of the slide rod 251.

[0028] In specific implementation, the sleeve rod 250 and the slide rod 251 are set up, and the other end of the sleeve rod 250 and the slide rod 251 are both arc-shaped. The center of the arc is coaxial with the rotation axis of one end of the fixed flange 230. The slide rod 251 supports the monitoring instrument housing 100. By adjusting the extension length of the slide rod 251, the tilt angle of the monitoring instrument housing 100 is adjusted. After the fixed flange 230 is installed and fixed with the surge arrester base, the tilt angle of the monitoring instrument housing 100 can be adjusted as needed, so that the instrument panel on the monitoring instrument is easy to observe.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A surge arrester online monitoring instrument, comprising a monitoring instrument housing (100), characterized in that, The outer side wall of one end of the monitoring instrument housing (100) is provided with an outer edge (110), and a closed plate (120) is provided at one end of the monitoring instrument housing (100). The closed plate (120) and the outer edge (110) are fixedly installed by multiple screws. A high-voltage end rod (130) is fixedly connected to the middle position of one side of the closed plate (120). An external component (200) is provided on the outer side of one end of the monitoring instrument housing (100). The external component (200) includes an outer ring frame (210) and a secondary ring frame (220). The outer side wall of the outer ring frame (210) is provided with two fixing flanges (230). The fixing flanges (230) can be installed with the fixing frame on the surge arrester.

2. The online surge arrester monitoring instrument according to claim 1, characterized in that, One end of the high-voltage end rod (130) is fixedly installed with a lead-out bracket (140), and one end of the lead-out bracket (140) is installed with a wiring bolt (141).

3. The online monitoring instrument for surge arresters according to claim 1, characterized in that, An insulator (131) is sleeved and installed at the middle position of the high-voltage end rod (130).

4. The online monitoring instrument for surge arresters according to claim 1, characterized in that, The bottom end of the sub-ring frame (220) is provided with a notch (222), and a ring-shaped part (221) is provided in the middle position of the sub-ring frame (220). One end of the ring-shaped part (221) is fixedly connected with a rubber ring.

5. The online surge arrester monitoring instrument according to claim 1, characterized in that, The sub-ring frame (220) is fastened to the outer ring frame (210), and a plurality of threaded seats (211) are fixed to the outer side wall of the outer ring frame (210). The sub-ring frame (220) and the ring-shaped part (221) are connected by screws.

6. The online surge arrester monitoring instrument according to claim 1, characterized in that, One end of the fixed flange (230) is rotatably connected to the outer ring frame (210), and a fixed rod (240) is fixedly connected between the other ends of the two fixed flanges (230). A sleeve rod (250) is fixedly connected at the middle position of the fixed rod (240). A slide rod (251) is slidably inserted into the sleeve rod (250). A fastening knob (253) is screwed onto the outer wall of one end of the sleeve rod (250). A grounding bolt (260) is installed at the other end of the fixed flange (230).

7. The online surge arrester monitoring instrument according to claim 6, characterized in that, One end of the slide bar (251) is fixedly connected to a support plate (252).

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