Standardized gap lightning arrester with insulating support and fault indication

Abstract

The utility model relates to a standardized gap lightning arrester with an insulation support and a fault indication function, which comprises a standardized gap lightning arrester body, the insulation support is mounted at the lower end of the standardized gap lightning arrester body, a disconnector is mounted at the lower end of the insulation support, and a second screw is mounted at the tail end of the disconnector. A mounting hole is formed in one side, far away from the lower end of the standard gap lightning arrester body, of the insulating bracket, the mounting hole in the insulating bracket is connected with the mounting hole in the metal bracket through a first screw, and a second screw at the tail end of the disconnector is connected with the first screw at the joint of the insulating bracket and the metal bracket through a copper wire woven belt. According to the utility model, the disconnector, the insulating bracket and the metal bracket are arranged on the standard gap lightning arrester body, so that when the lightning arrester is broken down by lightning stroke, the disconnector falls off and forms a fault mark, operation and maintenance personnel can easily find a fault point and can carry out targeted maintenance, and meanwhile, due to the insulating bracket, secondary accidents can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to power equipment production technical field, concretely is a kind of standardization gap arrester with insulating support with fault indication. BACKGROUND

[0002] Distribution network line is equipped with gap arrester, and the risk of line equipment suffering lightning overvoltage trip and wire breakage is reduced. The standardized gap arrester is implemented by State Grid, and the specifications of valve plate, the settings of gap, the specifications of metal support and complete machine and other technical parameters are unified, which greatly guarantees the quality of the gap arrester, ensures the safety and reliability of the power grid, more clearly specifies the technical parameter requirements of the gap arrester supply and demand parties, and unifies the gap arrester measurement and weighing. The standardized gap arrester also has the risk of lightning overvoltage breakdown, which may cause grounding. Once grounding occurs, it brings safety hazards, power outage causes economic losses and inconvenience in life. The standardized gap arrester with insulating support and fault indication is undoubtedly more favored by the distribution network line.

[0003] Therefore, the utility model provides a kind of standardized gap arrester with insulating support with fault indication. CONTENT OF UTILITY MODEL

[0004] The utility model discloses a kind of standardized gap arrester with insulating support with fault indication, by installing disengager and insulating support and metal support on standardized gap arrester body, when the standardized gap arrester with insulating support with fault indication is broken down by lightning, disengager is made to fall off, and form fault mark, and operation and maintenance personnel can easily find fault point, can be targeted maintenance;Meanwhile, insulating support plays the role of insulation, prevents grounding, and produces secondary accident.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of standardized gap arrester with insulating support with fault indication, including standardized gap arrester body, drain wire and discharge electrode, drain wire is installed on the upper surface of standardized gap arrester body, discharge electrode is installed on the side of standardized gap arrester body, insulating support is installed at the lower end of standardized gap arrester body, disengager is installed at the lower end of insulating support, second screw is installed at the tail end of disengager, installation hole is formed in the side of insulating support away from the lower end of standardized gap arrester body, the damage of standardized gap arrester body makes standardized gap arrester body from top to tail end, and then insulating support is disconnected to voltage, the installation hole on insulating support is connected with the installation hole on metal support by first screw, the second screw at the tail end of disengager is connected with the first screw at the connection of insulating support and metal support by copper wire preparation belt.

[0007] Preferably, when the standardization band gap lightning arrester body exceeds the bearing capacity range, the disengager falls off from the insulating support, and the disengager is hung below the metal support by the copper wire woven belt.

[0008] Preferably, one end of the copper wire woven belt is located on the second screw at the tail end of the disengager, and the other end of the copper wire woven belt is located below the insulating support.

[0009] Preferably, the insulating support is located below the metal support.

[0010] Compared with the prior art, the utility model has the beneficial effects that:

[0011] 1. By installing the disengager and the insulating support and the metal support on the standardization band gap lightning arrester body, when the standardization band gap lightning arrester with the insulating support and the fault indication is struck by lightning, the disengager falls off and forms a fault mark, and the fault point is easy to find by the operation and maintenance personnel, so that targeted maintenance can be carried out, and meanwhile the insulating support plays the role of insulation and prevents grounding and secondary accidents.

[0012] 2. Compared with the traditional standardization band gap lightning arrester with the insulating support and the fault indication, the utility model is safer and more reliable, protects the distribution network line operation, and has great economic benefit and social benefit. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structure schematic view of the utility model standardization band gap lightning arrester with the insulating support and the fault indication.

[0014] In the drawing: 1, standardization band gap lightning arrester body; 2, drainage wire; 3, discharge electrode; 4, insulating support; 5, metal support; 6, disengager; 7, first screw; 8, copper wire woven belt; 9, second screw. DETAILED DESCRIPTION

[0015] The technical scheme in the embodiments of the utility model will be described below in combination with the drawings in the embodiments of the utility model, and the embodiments described below are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0016] Please refer to Figure 1 The utility model provides a kind of standardization band gap lightning arrester with the insulating support and the fault indication, technical scheme is as follows:

[0017] The application relates to a standardized band-gap lightning arrester with an insulation support and a fault indication, which comprises a standardized band-gap lightning arrester body 1, a current lead 2 and a discharge electrode 3, the current lead 2 is arranged on the standardized band-gap lightning arrester body 1, the discharge electrode 3 is arranged on the side of the standardized band-gap lightning arrester body 1, voltage is led to the standardized band-gap lightning arrester body 1 through the current lead 2 at the upper end of the standardized band-gap lightning arrester body 1, passes through the gap between the top end of the standardized band-gap lightning arrester body 1 and the discharge electrode 3, and reaches the standardized band-gap lightning arrester body 1, an insulation support 4 is arranged at the lower end of the standardized band-gap lightning arrester body 1, a disengager 6 is arranged at the lower end of the insulation support 4, a second screw 9 is arranged at the tail end of the disengager 6, an installation hole is formed on the side of the insulation support 4 away from the lower end of the standardized band-gap lightning arrester body 1, the installation hole is connected with the installation hole on the metal support 5 through a first screw 7, the second screw 9 at the tail end of the disengager 6 is connected with the first screw 7 at the connection position of the insulation support 4 and the metal support 5 through a copper wire woven belt 8, finally reaches the grounding installation position, and the insulation support 4 plays an insulation role.

[0018] When the standardized band-gap lightning arrester body 1 exceeds the bearing capacity range, the disengager 6 falls off from the insulation support 4, and the disengager 6 is hung below the insulation support 4 through the copper wire woven belt 8. One end of the copper wire woven belt 8 is located on the second screw 9 at the tail end of the disengager 6, and the other end of the copper wire woven belt 8 is located below the insulation support 4 and is hung below the insulation support 4 when the disengager 6 falls off due to fault, so that a fault indication is formed. Maintenance personnel can find the fault lightning arrester according to the fault indication and replace and maintain the fault lightning arrester.

[0019] The insulation support 4 is located below the metal support 5, the insulation support 4 can effectively isolate current, prevent the current from spreading to other components or human bodies through the metal support 5, reduce the risk of electric shock, and improve the safety of equipment.

[0020] When the standardized band-gap lightning arrester with the insulation support and the fault indication releases the lightning overvoltage, the current passes through the gap, reaches the zinc oxide resistance sheet, then reaches the metal support 5 through the disengager 6 and the copper wire woven belt 8, and finally is grounded. The zinc oxide resistance sheet of the lightning arrester is in a high-resistance state normally, and is instantaneously conducted only when the lightning overvoltage reaches a critical value. When the standardized band-gap lightning arrester body 1 is subjected to a large lightning overvoltage, the zinc oxide resistance sheet rapidly returns to the high-resistance state. Once the lightning arrester is blown through by a direct lightning or a large lightning overvoltage, the disengager 6 falls off and is hung below the support, so that a fault indication is formed. Maintenance personnel can find the fault lightning arrester according to the fault indication and replace and maintain the fault lightning arrester. In addition, since the standardized band-gap lightning arrester body 1 is blown through, the standardized band-gap lightning arrester body 1 is communicated from the top end to the tail end. At this time, the insulation support 4 plays an insulation role. Even if the fault lightning arrester is not maintained in time, the fault lightning arrester will not be grounded, will not have a safety hazard, will not cause a grounding power-off trip or a safety accident, and secondary faults and safety accidents can be avoided.

[0021] Working principle:

[0022] By installing the disengager and the insulating support and the metal support on the standardized band-gap lightning arrester body, the disengager is caused to fall off when the lightning arrester is struck by lightning, and a fault mark is formed, so that the fault point is easily found by the operation and maintenance personnel, and targeted maintenance can be carried out; meanwhile, the insulating support plays an insulating role, prevents grounding, and prevents secondary accidents.

[0023] The embodiments of the utility model have been shown and described, for those skilled in the art, can carry out multiple changes, modification, replacement and variation to these embodiments without departing from the principles and spirits of the utility model, the range of the utility model is defined by the appended claims and its equivalents.

Claims

1. A standardized band-gap surge arrester with insulation support band failure indication, comprising a standardized band-gap surge arrester body (1), a current lead wire (2) and a discharge electrode (3), the current lead wire (2) is installed on the standardized band-gap surge arrester body (1), and the discharge electrode (3) is installed on the side of the standardized band-gap surge arrester body (1), characterized in that: The lower end of the standardized band gap lightning arrester body (1) is provided with an insulating support (4), the lower end of the insulating support (4) is provided with a disconnector (6), the tail end of the disconnector (6) is provided with a second screw (9), the side of the insulating support (4) away from the lower end of the standardized band gap lightning arrester body (1) is provided with a mounting hole, the damage of the standardized band gap lightning arrester body (1) makes the standardized band gap lightning arrester body (1) communicate from the top end to the tail end, and then the insulating support (4) disconnects the voltage, the mounting hole on the insulating support (4) and the mounting hole on the metal support (5) are connected through the first screw (7), and the second screw (9) at the tail end of the disconnector (6) is connected with the first screw (7) at the connection position of the insulating support (4) and the metal support (5) through the copper wire woven belt (8).

2. A standardized surge arrester with insulation support and fault indication bandgap according to claim 1, characterized in that: When the standardized band gap lightning arrester body (1) exceeds the bearing capacity range, the disconnector (6) falls off from the insulating support (4), and the disconnector (6) is hung below the metal support (5) through the copper wire woven belt (8).

3. A standardized surge arrester with insulation support and fault indication bandgap according to claim 1, characterized in that: One end of the copper wire woven belt (8) is located on the second screw (9) at the tail end of the disconnector (6), and the other end of the copper wire woven belt (8) is located below the insulating support (4).

4. A standardized surge arrester with insulation support and fault indication bandgap according to claim 1, characterized in that: The insulating support (4) is located below the metal support (5).

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