Lightning arrester and on-line monitor connecting mechanism and transformer neutral point complete set protection device

Abstract

The utility model provides a lightning arrester and on-line monitor connecting mechanism and transformer neutral point complete set protection device, including connecting lead, insulating seat, winding subassembly and elastic member, winding subassembly includes bottom plate, wrapping post and first guide post, first guide post and wrapping post both are fixedly connected on the bottom plate, and the elastic member is fixed on the bottom plate. A connecting hole is formed in the side, away from the wrapping post, of the bottom plate, the bottom plate is rotationally connected to the insulating base through the connecting hole, the elastic piece is arranged in the connecting hole and exerts torsional force on the bottom plate, the first end of the elastic piece is connected to the insulating base, the second end of the elastic piece is connected to the bottom plate, and the connecting wire is wound around the wrapping post. The first end of the connecting wire bypasses the first guide column and extends out of one side of the bottom plate, and the second end of the connecting wire extends out of the other side of the bottom plate. Torsional force is applied to the bottom plate through the elastic piece, so that the winding assembly tensions the connecting wire, and the situation that the connecting wire shakes along with wind and consequently the connecting position is loosened is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to power transmission equipment technical field, concretely relates to a lightning arrester and on -line monitoring appearance connecting mechanism and transformer neutral point complete protection device. BACKGROUND

[0002] The transformer neutral point gap grounding protection complete protection device adopts the complete equipment of integrating isolating switch, zinc oxide lightning arrester, discharge gap and current transformer etc.

[0003] With the safe operation of power equipment more and more important, the influence and loss that power failure accident brings to production and life are more and more big, therefore urgently need to carry out real-time or timing on -line monitoring to the operation state of power equipment, and timely reflect the good and bad degree of insulation, so as to take preventive measures. Monitoring instrument is usually installed on the monitored equipment or accessory, to automatically collect, process and send the monitoring device of the state of the monitored equipment. The existing neutral point complete equipment adopts the on -line monitoring of monitoring instrument, and is connected with the lightning arrester through two copper stranded wires and copper bar, when being in high altitude area, due to the influence of environmental factors such as wind force temperature, the copper stranded wire and copper bar connection may be loose due to the shaking, so that the information monitored by the on -line monitoring device is unstable, or cannot be monitored.

[0004] In view of the above, a lightning arrester and on -line monitoring appearance connecting mechanism and transformer neutral point complete protection device are urgently needed to solve or at least partially solve the problems existing in the prior art. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a lightning arrester and on -line monitoring appearance connecting mechanism, which aims at solving the problem of loose connection in the prior art, and the specific technical scheme is as follows:

[0006] A lightning arrester and on -line monitoring appearance connecting mechanism, including connecting wire, insulating seat, winding assembly and elastic piece, winding assembly includes bottom plate, winding column and first guide column, first guide column and winding column are all fixedly connected on the same side of bottom plate, the end away from winding column of bottom plate is equipped with connecting hole, bottom plate is rotatably connected on insulating seat through connecting hole, elastic piece is arranged in connecting hole, and the elastic piece exerts torsional force on the bottom plate, the first end of elastic piece is connected on insulating seat, the second end of elastic piece is connected on bottom plate, connecting wire is wound on winding column, the first end of connecting wire passes through first guide column and extends from the side of bottom plate, and the second end of connecting wire extends from the other side of bottom plate.

[0007] The winding post is provided with a groove, and the connecting wire is wound in the groove.

[0008] The groove is a spiral groove.

[0009] The winding assembly further comprises a second guide post arranged on the bottom plate and arranged on the side of the winding post away from the first guide post.

[0010] The winding post, the first guide post and the second guide post are all circular posts.

[0011] The elastic member is a torsion spring.

[0012] The winding post and the first guide post are fixedly connected to the bottom plate by welding.

[0013] The winding post and the first guide post are coated with a zinc plating layer on the outer surfaces.

[0014] In another aspect, the utility model also provides a transformer neutral point complete protection device, and specific technical schemes are as follows:

[0015] A transformer neutral point complete protection device, comprising a disconnecting switch, a lightning arrester, a current transformer and a frame, the disconnecting switch, the lightning arrester and the current transformer are all installed on the frame, the disconnecting switch is provided with a connecting row, the disconnecting switch is connected with the lightning arrester through the connecting row, the current transformer is provided with a connecting pipe and a grounding row, the current transformer is communicated with the frame through the grounding row, the first end of the connecting pipe is connected with the current transformer, the second end of the connecting pipe extends upwards and is connected with a discharge gap rod, the first end of the discharge gap rod is connected with the connecting pipe, the second end of the discharge gap rod is connected with the connecting row, and the lightning arrester and the on-line monitoring instrument connecting mechanism and the on-line monitoring instrument are all installed on the frame, the insulating seat is installed on the frame, the first end of the connecting wire is connected with the end of the lightning arrester away from the disconnecting switch, and the second end of the connecting wire is connected with the input end of the on-line monitoring instrument.

[0016] The technical scheme of the utility model has the following beneficial effects:

[0017] When in use, the first end of the connecting wire is fixedly connected to the lightning arrester, the second end of the connecting wire is sequentially wound around the first guide post and the winding post, and extends out from the end of the winding post away from the first guide post and is fixedly connected to the input end of the on-line monitoring instrument, after fixing the wire, the elastic member is in a compressed state, the elastic member exerts a torsional force on the bottom plate, the bottom plate and the first guide post and the winding post are rotated, so that the two ends of the connecting guide are always in a taut state, and when encountering a strong wind environment, because the connecting guide is in a taut state, it will not shake due to wind, so that the situation that the connecting wire shakes with the wind and causes the connecting part to loosen is prevented.

[0018] In addition to the purposes, features and advantages described above, the utility model has other purposes, features and advantages. Below will be described in detail Figures 1-5 , the utility model makes further detailed explanation. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings that form a part of this application serve to provide further understanding of the utility model, the illustrative embodiment of the utility model and the explanation thereof serve to explain the utility model, and do not constitute undue limitation on the utility model. In the drawings:

[0020] Figure 1 It is the whole structure schematic diagram of the utility model kind lightning arrester and on-line monitoring appearance connecting mechanism;

[0021] Figure 2 It is the internal structure schematic diagram of the utility model kind lightning arrester and on-line monitoring appearance connecting mechanism;

[0022] Figure 3 It is the partial enlarged schematic diagram of the utility model kind lightning arrester and on-line monitoring appearance connecting mechanism;

[0023] Figure 4 It is the whole structure schematic diagram of the utility model kind transformer neutral point complete protection device one of;

[0024] Figure 5 It is the whole structure schematic diagram of the utility model kind transformer neutral point complete protection device two.

[0025] Wherein, 1, disconnecting switch;11, connecting row;2, lightning arrester;3, current transformer;31, connecting pipe;32, grounding row;33, discharge gap rod;4, frame;5, lightning arrester and on-line monitoring appearance connecting mechanism;51, connecting wire;52, insulating seat;53, winding assembly;531, bottom plate;5311, connecting hole;532, winding column;5321, recess;533, first guide column;534, second guide column;54, elastic part;6, on-line detection instrument. DETAILED DESCRIPTION

[0026] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below, and the preferred embodiment of the utility model is given. However, the utility model can be realized in many different forms, and is not limited to the embodiments described in this paper. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application.

[0028] Embodiment:

[0029] Referring to Figures 1-5 , the embodiment provides a lightning arrester and online monitor connection mechanism, which comprises a connecting wire 51, an insulating base 52, a winding assembly 53 and an elastic member 54. The winding assembly 53 comprises a bottom plate 531, a winding column 532 and a first guide column 533. The first guide column 533 and the winding column 532 are both fixedly connected on the same side of the bottom plate 531. An end of the bottom plate 531 away from the winding column 532 is provided with a connecting hole 5311. The bottom plate 531 is rotatably connected to the insulating base 52 through the connecting hole 5311. The elastic member 54 is arranged in the connecting hole 5311 and exerts a torsional force on the bottom plate 531. A first end of the elastic member 54 is connected to the insulating base 52, and a second end of the elastic member 54 is connected to the bottom plate 531. The connecting wire 51 is wound around the winding column 532. A first end of the connecting wire 51 is arranged to extend out from one side of the bottom plate 531 by winding around the first guide column 533. A second end of the connecting wire 51 extends out from the other side of the bottom plate 531.

[0030] Specifically, the first guide column 533 is arranged in parallel with the winding column 532.

[0031] It can be understood that, in use, the first end of the connecting wire 51 is fixedly connected to the lightning arrester 2, and the second end of the connecting wire 51 is sequentially wound around the first guide column 533 and the winding column 532 and extends out from an end of the winding column 532 away from the first guide column 533 and is fixedly connected to an input end of the online monitor 6. After the wire is fixed, the elastic member 54 is in a compressed state, and the elastic member 54 exerts a torsional force on the bottom plate 531, so that the bottom plate 531 and the first guide column 533 and the winding column 532 are rotated, thereby keeping the two ends of the connecting wire 51 in a taut state at all times. When encountering a strong wind environment, because the connecting wire 51 is in a taut state, it will not sway due to wind, thereby preventing the connecting wire 51 from swaying and causing the connection to loosen. In addition, it is worth noting that when it is necessary to adjust the tension of the connecting wire 51, it is only necessary to adjust the compression amount of the elastic member 54. The greater the compression amount of the elastic member 54, the greater the elastic force provided, thereby keeping the connecting wire 51 in a taut state at all times.

[0032] As a more preferred embodiment, the winding column 532 is provided with a groove 5321, and the connecting wire 51 is wound in the groove 5321.

[0033] It can be understood that, by the setting of the groove 5321, when the connecting wire 51 is wound on the winding column 532, the connecting wire 51 is embedded in the groove 5321, and the connecting wire 51 is relatively fixed on the winding column 532 by the setting of the groove 5321, preventing the connecting wire 51 from relatively sliding with respect to the winding column 532 to cause the connecting wire 51 wound on the winding column 532 to be loose.

[0034] As a preferred embodiment, the groove 5321 is a spiral groove.

[0035] It can be understood that, by setting the groove 5321 as a spiral groove, the cross section of the spiral groove is semicircular, embedding the connecting wire 51 in the spiral groove for fixation, making the connecting wire 51 more stable.

[0036] As a preferred embodiment, the winding assembly 53 further comprises a second guide column 534, which is arranged on the bottom plate 531, and the second guide column 534 is arranged on the side of the winding column 532 away from the first guide column 533.

[0037] By guiding the connecting wire 51 through the first guide column 533 and the second guide column 534, and simultaneously rotating the first guide column 533 and the second guide column 534 with the bottom plate 531, the connecting wire 51 is tensioned, because the first guide column 533 and the second guide column 534 are far away from the rotation center of the bottom plate 531, so that when the bottom plate 531 rotates by the same angle, the connecting wire 51 is moved by a greater distance, thereby improving the tensioning effect of the connecting wire 51.

[0038] As a preferred embodiment, the winding column 532, the first guide column 533 and the second guide column 534 are all circular columns.

[0039] It can be understood that, when the connecting wire 51 passes through the first guide column 533 and the second guide column 534, the connecting wire 51 smoothly transitions through the first guide column 533 and the second guide column 534 by the transition of the circular surface of the outer surface of the first guide column 533 and the second guide column 534, preventing the connecting wire 51 from stress concentration (i.e., if the first guide column 533 is square, when the connecting wire 51 passes through the corner of the first guide column 533, the connecting wire 51 is easily bent at the corner, thereby causing stress concentration at the corner, and the position of stress concentration is prone to cracking, leading to the breakage of the connecting wire 51).

[0040] As a preferred embodiment, the elastic member 54 is a torsion spring, the torsion spring exerts a torsion force, the first end of the torsion spring acts on the insulating base 52, and the second end of the torsion spring acts on the bottom plate 531, so that the bottom plate 531 has a tendency of torsion, and the wire column 532 and the first guide column 533 on the bottom plate 531 tension the connecting wire 51.

[0041] As a preferred embodiment, the wire column 532 and the first guide column 533 are fixedly connected to the bottom plate 531 by welding. It can be understood that the first guide column 533 and the wire column 532 can be fixedly connected to the bottom plate 531 by welding, which can firmly fix the first guide column 533 and the wire column 532 to the bottom plate 531, and such a fixing manner is not prone to loosening and the like, so that the wire assembly 53 is more firm and stable. Of course, in some other embodiments, the first guide column 533 and the wire column 532 can also be fixedly connected to the bottom plate 531 by riveting and threaded connection.

[0042] As a preferred embodiment, the outer surfaces of the wire column 532 and the first guide column 533 are coated with a zinc plating layer.

[0043] It can be understood that the wire column 532 and the first guide column 533 are made of steel material, and the zinc plating layer is coated on the outer surfaces of the wire column 532 and the first guide column 533 to protect the wire column 532 and the first guide column 533 from corrosion. Of course, oil paint can also be sprayed to prevent corrosion. The bottom plate 531 and the second guide column 534 also adopt the same corrosion prevention manner as the wire column 532 and the first guide column 533.

[0044] On the other hand, with reference to Figures 1-5 The application also provides a complete transformer neutral point protection device, and the specific technical scheme is as follows:

[0045] The utility model provides a transformer neutral point complete protection device, including isolator 1, lightning arrester 2, current transformer 3 and frame 4, isolator 1, lightning arrester 2 and current transformer 3 all are installed on frame 4, is provided with connecting row 11 on isolator 1, and isolator 1 is connected with lightning arrester 2 through connecting row 11, is provided with connecting pipe 31 and ground row 32 on current transformer 3, and current transformer 3 is communicated with frame 4 through ground row 32, the first end of connecting pipe 31 is connected with current transformer 3, the second end of connecting pipe 31 extends upwards and is connected with discharge gap rod 33, the first end of discharge gap rod 33 is connected with connecting pipe 31, and the second end of discharge gap rod 33 is connected with connecting row 11, still include above-mentioned lightning arrester and on-line monitoring appearance connecting mechanism 5 and on-line detection instrument 6, and on-line detection instrument 6 and lightning arrester and on-line monitoring appearance connecting mechanism 5 all are installed on frame 4, and insulating seat 52 is installed on frame 4, and the first end of connecting wire 51 is connected with the one end of lightning arrester 2 away from isolator 1, and the second end of connecting wire 51 is connected with the input end of on-line monitoring appearance.

[0046] It needs to be explained that discharge gap rod 33 actually breaks along the middle part, and one end is connected with connecting pipe 31, and the other end is connected with connecting row 11, and discharge small balls are arranged on both sides of the breaking point.

[0047] It can be known that the on-line monitoring appearance is used for monitoring lightning arrester 2, so that the on-line monitoring appearance can monitor the discharge times and leakage current of lightning arrester 2 in real time.

[0048] The above only for the preferred embodiment of the utility model has been only, and does not limit the utility model, for the skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A connection mechanism between a lightning arrester and an online monitor, characterized in that: It includes a connecting wire (51), an insulating seat (52), a winding assembly (53) and an elastic member (54). The winding assembly (53) includes a base plate (531), a winding post (532) and a first guide post (533), wherein the first guide post (533) and the winding post (532) are both fixedly connected to the same side of the base plate (531). A connection hole (5311) is provided at one end of the bottom plate (531) away from the winding post (532), and the bottom plate (531) is rotatably connected to the insulating seat (52) through the connection hole (5311). The elastic member (54) is arranged in the connecting hole (5311), and the elastic member (54) applies a torsional force to the bottom plate (531), a first end of the elastic member (54) is connected to the insulating seat (52), and a second end of the elastic member (54) is connected to the bottom plate (531). The connecting wire (51) is wound on the winding post (532), the first end of the connecting wire (51) passes around the first guide post (533) and extends out from one side of the base plate (531), and the second end of the connecting wire (51) extends out from the other side of the base plate (531).

2. The lightning arrester and online monitor connection mechanism according to claim 1, characterized in that: The winding post (532) is provided with a groove (5321), and the connecting wire (51) is wound in the groove (5321).

3. The lightning arrester and online monitor connection mechanism according to claim 2, characterized in that: The groove (5321) is a spiral groove.

4. The lightning arrester and online monitor connection mechanism according to claim 1, characterized in that: The winding assembly (53) further includes a second guide post (534), which is arranged on the base plate (531), and the second guide post (534) is arranged on a side of the winding post (532) away from the first guide post (533).

5. The lightning arrester and online monitor connection mechanism according to claim 4, characterized in that: The winding column (532), the first guide column (533) and the second guide column (534) are all circular columns.

6. The lightning arrester and online monitor connection mechanism according to claim 1, characterized in that: The elastic member (54) is a torsion spring.

7. The lightning arrester and online monitor connection mechanism according to claim 1, characterized in that: The winding post (532) and the first guide post (533) are fixedly connected to the bottom plate (531) by welding.

8. The lightning arrester and online monitor connection mechanism according to claim 1, characterized in that: The outer surfaces of the winding post (532) and the first guide post (533) are coated with a zinc coating.

9. A complete set of transformer neutral point protection devices, characterized by: The invention comprises an isolating switch (1), a lightning arrester (2), a current transformer (3) and a frame (4); the isolating switch (1), the lightning arrester (2) and the current transformer (3) are all mounted on the frame (4); a connecting bar (11) is provided on the isolating switch (1); the isolating switch (1) is connected to the lightning arrester (2) via the connecting bar (11); a connecting pipe (31) and a grounding bar (32) are provided on the current transformer (3); the current transformer (3) is communicated with the frame (4) via the grounding bar (32); a first end of the connecting pipe (31) is connected to the current transformer (3); a second end of the connecting pipe (31) extends upward and is connected to a discharge gap rod (33); a first end of the discharge gap rod (33) is connected to the connecting pipe (31); and a second end of the discharge gap rod (33) is connected to the connecting bar (11). It also includes a lightning arrester and online monitor connecting mechanism (5) according to any one of claims 1 to 8, and an online detector (6), wherein the online detector (6) and the lightning arrester and online monitor connecting mechanism (5) are both mounted on the frame (4), the insulating seat (52) is mounted on the frame (4), the first end of the connecting wire (51) is connected to an end of the lightning arrester (2) away from the disconnector (1), and the second end of the connecting wire (51) is connected to the input end of the online monitor.

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