CN104715869A - Insulator support fixed gap overvoltage protector - Google Patents
Insulator support fixed gap overvoltage protector Download PDFInfo
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- CN104715869A CN104715869A CN201510169616.6A CN201510169616A CN104715869A CN 104715869 A CN104715869 A CN 104715869A CN 201510169616 A CN201510169616 A CN 201510169616A CN 104715869 A CN104715869 A CN 104715869A
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- 239000012212 insulator Substances 0.000 title claims abstract description 94
- 230000001012 protector Effects 0.000 title claims abstract description 66
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 13
- 229920002379 silicone rubber Polymers 0.000 claims description 8
- 239000004945 silicone rubber Substances 0.000 claims description 8
- 238000005452 bending Methods 0.000 claims description 7
- 239000004593 Epoxy Substances 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 229910044991 metal oxide Inorganic materials 0.000 abstract description 11
- 150000004706 metal oxides Chemical class 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000009413 insulation Methods 0.000 abstract description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
本发明涉及一种绝缘子支撑固定间隙过电压保护器，包括保护器上引线、小绝缘罩、绝缘子支撑件、上引流球、下引流球、避雷器本体和保护器安装板，所述绝缘子支撑件和避雷器本体一上、一下地设置；所述小绝缘罩套接在所述绝缘子支撑件的上端，上引流球和下引流球一一对应地设置在所述绝缘子支撑件的上、下端；保护器安装板固定在所述避雷器本体的下端。本发明的绝缘子支撑固定间隙过电压保护器，将绝缘子支撑件和金属氧化物避雷器直接连接一体结构，整体成型，使得整个过电压保护器更加小型化，绝缘防护可靠性增加，生产工艺要求更高，生产技术更进一步。
The invention relates to an overvoltage protector supported by an insulator with a fixed gap, comprising an upper lead wire of the protector, a small insulating cover, an insulator support, an upper drainage ball, a lower drainage ball, a lightning arrester body and a protector mounting plate, the insulator support and The arrester body is set up and down; the small insulating cover is sleeved on the upper end of the insulator support, and the upper drainage ball and the lower drainage ball are respectively arranged on the upper and lower ends of the insulator support; the protector The mounting plate is fixed on the lower end of the arrester body. The insulator support fixed gap overvoltage protector of the present invention directly connects the insulator support and the metal oxide arrester to form an integral structure, which makes the entire overvoltage protector more miniaturized, increases the reliability of insulation protection, and requires higher production technology. , the production technology goes further.
Description
技术领域technical field
本发明涉及一种绝缘子支撑固定间隙过电压保护器。The invention relates to an overvoltage protector supported by an insulator with a fixed gap.
背景技术Background technique
目前，我国大、中城市10kV配电线路基本都采用了绝缘导线作为架空配电线路，有效地解决了裸导线难以解决的走廊和安全问题，但架空绝缘导线也带来一个新的问题：架空绝缘导线雷电过电压的击穿点就在支柱绝缘子的附近200mm范围内，从而导致绝缘子沿面闪络或击穿，而受绝缘层的阻挡作用，雷击后工频续流电弧弧根集中在绝缘层的击穿点，易造成绝缘导线熔化断线，严重威胁设备和人身的安全。At present, the 10kV distribution lines in large and medium cities in my country basically use insulated wires as overhead distribution lines, effectively solving the corridor and safety problems that are difficult to solve with bare wires, but overhead insulated wires also bring a new problem: overhead The lightning overvoltage breakdown point of insulated conductors is within 200mm of the post insulator, which will cause the insulator to flashover or breakdown along the surface, and due to the blocking effect of the insulating layer, the arc root of the power frequency freewheeling arc will concentrate on the insulating layer after the lightning strike breakdown point, it is easy to cause the insulated wire to melt and disconnect, which seriously threatens the safety of equipment and personal safety.
现在10kV线路上，国内采取两种主要的方案来解决架空绝缘导线雷击断线的，一是放电金具，二是采用过电压保护器，此处主要对过电压保护器的现有技术及优缺点作介绍：常规的过电压保护器结构，是由环状或球状间隙与金属氧化物避雷器本体组成，带环形电极的过电压保护器，其空气间隙是架空绝缘导线到环状引弧圈的距离；球状间隙则是，上引流球穿刺或剥线接进架空绝缘导线，下引流球连接金属氧化物避雷器上端：这俩种间隙，都是活动间隙，线上安装工序繁琐，且极易受人工及其他因素影响。这类过电压保护器主要防护线路雷击断线，并不能有效地防止工频闪络跳闸。At present, on the 10kV line, two main solutions are adopted in China to solve the lightning breakage of overhead insulated conductors. One is discharge fittings, and the other is the use of overvoltage protectors. Here, the existing technology and advantages and disadvantages of overvoltage protectors are mainly discussed. Introduction: The conventional overvoltage protector structure is composed of a ring or spherical gap and a metal oxide arrester body. For an overvoltage protector with ring electrodes, the air gap is the distance from the overhead insulated wire to the ring arc striker The spherical gap is that the upper drainage ball is punctured or stripped and connected to the overhead insulated wire, and the lower drainage ball is connected to the upper end of the metal oxide arrester: these two kinds of gaps are all movable gaps, and the online installation process is cumbersome and easily affected by manual work. and other factors. This type of overvoltage protector mainly protects the line from lightning strike and disconnection, and cannot effectively prevent power frequency flashover tripping.
还有一类过电压保护器，过电压保护器本体上部分为金属氧化物避雷器本体，接入线路系统，下部分为绝缘部件，安装在安装板上，俩者之间引出引流球，对应安装板上的接地引流球，形成空气固定间隙，保护器本体上端接入10kV系统，下端安装在接地安装板上。间隙距离虽是固定的，解决了人工安装间隙的不稳定性，但是保护器中的金属氧化物避雷器本体时刻接入线路系统，这使得其空气间隙仅仅是一个引弧放电间隙，丧失了隔绝线路与金属氧化物避雷器本体的作用，避雷器本体需要考虑其老化性能，增加了线路中对保护器的巡检和更换工作。There is also a type of overvoltage protector. The upper part of the overvoltage protector body is the metal oxide arrester body, which is connected to the line system, and the lower part is the insulating part, which is installed on the mounting plate. The drainage ball is drawn between the two, corresponding to the mounting plate. The grounding drainage ball on the top forms a fixed air gap, the upper end of the protector body is connected to the 10kV system, and the lower end is installed on the grounding mounting plate. Although the gap distance is fixed, it solves the instability of the manual installation gap, but the metal oxide arrester body in the protector is always connected to the line system, which makes its air gap only an arc discharge gap and loses the isolation circuit With the role of the metal oxide arrester body, the arrester body needs to consider its aging performance, which increases the inspection and replacement work of the protector in the line.
发明内容Contents of the invention
本发明的目的，就是为了解决上述现有技术存在的问题，考虑过电压保护器的空气间隙稳定性、安装便捷性、高耐污性以及抗老化耐用性，而提供一种绝缘子支撑固定间隙过电压保护器，是以绝缘子作为支撑件形成固定空气间隙的过电压保护器，将绝缘子支撑件和金属氧化物避雷器直接连接一体结构，整体成型，使得整个过电压保护器更加小型化，绝缘防护可靠性增加，生产工艺要求更高，生产技术更进一步。The purpose of the present invention is to solve the above-mentioned problems in the prior art, and to provide an insulator supporting fixed gap overvoltage protector considering the air gap stability, installation convenience, high pollution resistance and aging resistance durability. The voltage protector is an overvoltage protector that uses the insulator as a support to form a fixed air gap. The insulator support and the metal oxide arrester are directly connected to an integrated structure and formed as a whole, which makes the entire overvoltage protector more miniaturized and reliable in insulation protection. Increased reliability, higher production process requirements, and further production technology.
实现上述目的的技术方案是：一种绝缘子支撑固定间隙过电压保护器，包括保护器上引线、小绝缘罩、绝缘子支撑件、上引流球、下引流球、避雷器本体和保护器安装板，其中：The technical solution to achieve the above purpose is: an overvoltage protector supported by an insulator with a fixed gap, including an upper lead wire of the protector, a small insulating cover, an insulator support, an upper drainage ball, a lower drainage ball, a surge arrester body and a protector mounting plate, wherein :
所述绝缘子支撑件和避雷器本体一上、一下地设置，所述绝缘子支撑件的下端与所述避雷器本体的上端相连，所述绝缘子支撑件的外部和避雷器本体的外部均包裹有硅橡胶外套；The insulator support and the arrester body are arranged one above the other, the lower end of the insulator support is connected to the upper end of the arrester body, and the outside of the insulator support and the arrester body are wrapped with a silicone rubber jacket;
所述小绝缘罩套接在所述绝缘子支撑件的上端，所述小绝缘罩的一侧开设一上引线安装孔，所述保护器上引线的一端穿过该上引线安装孔并与所述绝缘子支撑件的上端相连；The small insulating cover is sleeved on the upper end of the insulator support, an upper lead installation hole is opened on one side of the small insulating cover, and one end of the upper lead of the protector passes through the upper lead installation hole and is connected to the upper lead installation hole. The upper ends of the insulator supports are connected;
所述上引流球和下引流球一一对应地设置在所述绝缘子支撑件的上、下端，且所述上引流球位于所述小绝缘罩的下方；The upper drainage ball and the lower drainage ball are arranged on the upper and lower ends of the insulator support one by one, and the upper drainage ball is located below the small insulating cover;
所述保护器安装板固定在所述避雷器本体的下端。The protector mounting plate is fixed on the lower end of the arrester body.
上述的一种绝缘子支撑固定间隙过电压保护器，其中，所述绝缘子支撑件的下端为绝缘子下电极，该绝缘子下电极具有外螺纹；The above-mentioned insulator support fixed gap overvoltage protector, wherein the lower end of the insulator support is the lower electrode of the insulator, and the lower electrode of the insulator has external threads;
所述避雷器本体的上端为避雷器上电极，该避雷器上电极具有内螺纹；The upper end of the arrester body is the upper electrode of the arrester, and the upper electrode of the arrester has internal threads;
所述绝缘子下电极旋转进入所述避雷器上电极的内螺纹形成的螺纹孔中，且所述绝缘子下电极与所述避雷器上电极的连接处通过销子固定连接。The lower electrode of the insulator rotates into the threaded hole formed by the inner thread of the upper electrode of the arrester, and the connection between the lower electrode of the insulator and the upper electrode of the arrester is fixedly connected by a pin.
上述的一种绝缘子支撑固定间隙过电压保护器，其中，所述绝缘子下电极与所述避雷器上电极的连接处沿所述绝缘子下电极的径向开设一通孔，所述销子插接在该通孔内。The above-mentioned overvoltage protector supported by an insulator with a fixed gap, wherein a through hole is opened at the junction of the lower electrode of the insulator and the upper electrode of the arrester along the radial direction of the lower electrode of the insulator, and the pin is plugged into the inside the through hole.
上述的一种绝缘子支撑固定间隙过电压保护器，其中，所述绝缘子支撑件的外部包裹的硅橡胶外套和所述避雷器本体的外部均包裹的硅橡胶外套一体成型。The above-mentioned overvoltage protector supported by insulators with fixed gaps, wherein the silicone rubber jacket wrapped outside the insulator support and the silicone rubber jacket wrapped outside the arrester body are integrally formed.
上述的一种绝缘子支撑固定间隙过电压保护器，其中，所述上引流球通过上金属连接件安装在所述绝缘子支撑件的上端；所述下引流球过下金属连接件安装在所述绝缘子支撑件的下端；所述上引流球和下引流球位于同一平面内。The above-mentioned insulator support fixed gap overvoltage protector, wherein, the upper diversion ball is installed on the upper end of the insulator support through the upper metal connector; the lower diversion ball is installed on the insulator through the lower metal connector. The lower end of the support member; the upper drainage ball and the lower drainage ball are located in the same plane.
上述的一种绝缘子支撑固定间隙过电压保护器，其中，所述上引流球包括横向部和向下折弯部，所述横向部的一端与所述上金属连接件相固定，另一端与所述向下折弯部的顶端相连，所述向下折弯部的底端为所述上引流球的放电端，所述向下折弯部的底端呈球形结构；The above-mentioned insulator-supported fixed-gap overvoltage protector, wherein the upper diversion ball includes a transverse portion and a downwardly bent portion, one end of the transverse portion is fixed to the upper metal connector, and the other end is fixed to the upper metal connector. The top of the downward bending part is connected, the bottom end of the downward bending part is the discharge end of the upper drainage ball, and the bottom end of the downward bending part has a spherical structure;
所述下引流球呈棒形结构，所述下引流球的一端与所述下金属连接件相连，另一端呈球形结构且为所述下引流球的放电端。The lower drainage ball has a rod-shaped structure, one end of the lower drainage ball is connected to the lower metal connector, and the other end is a spherical structure and is a discharge end of the lower drainage ball.
上述的一种绝缘子支撑固定间隙过电压保护器，其中，所述绝缘子支撑件由耐酸型环氧玻璃纤维拉挤成型。The above-mentioned insulator-supported fixed-gap overvoltage protector, wherein the insulator support is formed by pultrusion of acid-resistant epoxy glass fiber.
上述的一种绝缘子支撑固定间隙过电压保护器，其中，所述绝缘子支撑件具有三个伞裙。The above-mentioned insulator support fixed gap overvoltage protector, wherein the insulator support has three sheds.
本发明的绝缘子支撑固定间隙过电压保护器，是以绝缘子作为支撑件形成固定空气间隙的过电压保护器，将绝缘子支撑件和金属氧化物避雷器直接连接一体结构，整体成型，使得整个过电压保护器更加小型化，绝缘防护可靠性增加，生产工艺要求更高，生产技术更进一步。The insulator-supported fixed-gap overvoltage protector of the present invention is an overvoltage protector that uses insulators as supports to form a fixed air gap. The insulator support and the metal oxide arrester are directly connected to an integrated structure and integrally formed, so that the entire overvoltage protection The device is more miniaturized, the reliability of insulation protection is increased, the production process requirements are higher, and the production technology is further advanced.
附图说明Description of drawings
图1是本发明的绝缘子支撑固定间隙过电压保护器的结构示意图；Fig. 1 is a schematic structural view of an insulator-supported fixed-gap overvoltage protector of the present invention;
图2是绝缘子支撑件与避雷器的内部连接结构图；Fig. 2 is a structural diagram of the internal connection between the insulator support and the arrester;
图3是本发明的绝缘子支撑固定间隙过电压保护器的使用状态图。Fig. 3 is a view of the use state of the insulator-supported fixed-gap overvoltage protector of the present invention.
具体实施方式Detailed ways
为了使本技术领域的技术人员能更好地理解本发明的技术方案，下面将结合附图对本发明作进一步说明。In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described below in conjunction with the accompanying drawings.
请参阅图1和图2，本发明的实施例，一种绝缘子支撑固定间隙过电压保护器，包括保护器上引线1、小绝缘罩2、绝缘子支撑件4、上引流球3、下引流球5、避雷器本体6和保护器安装板7。Please refer to Fig. 1 and Fig. 2, an embodiment of the present invention, an insulator support fixed gap overvoltage protector, including protector upper lead 1, small insulating cover 2, insulator support 4, upper drainage ball 3, lower drainage ball 5. Arrester body 6 and protector mounting plate 7.
绝缘子支撑件4和避雷器本体6一上、一下地设置，绝缘子支撑件4的下端与避雷器本体6的上端相连。The insulator support 4 and the arrester body 6 are arranged one above the other, and the lower end of the insulator support 4 is connected to the upper end of the arrester body 6 .
请参阅图2，绝缘子支撑件4的下端为绝缘子下电极41，该绝缘子下电极41具有外螺纹；避雷器本体6的上端为避雷器上电极61，该避雷器上电极61具有内螺纹；绝缘子下电极41旋转进入避雷器上电极61的内螺纹形成的螺纹孔中，且绝缘子下电极41与避雷器上电极61的连接处通过销子8固定连接。绝缘子下电极41与避雷器上电极61的连接处沿绝缘子下电极41的径向开设一通孔，销子8插接在该通孔内。绝缘子支撑件4的外部和避雷器本体6的外部均包裹有硅橡胶外套9，且绝缘子支撑件4的外部包裹的硅橡胶外套和避雷器本体6的外部均包裹的硅橡胶外套一体成型。Please refer to Fig. 2, the lower end of the insulator support 4 is the lower electrode 41 of the insulator, and the lower electrode 41 of the insulator has external threads; the upper end of the arrester body 6 is the upper electrode 61 of the arrester, and the upper electrode 61 of the arrester has internal threads; Rotate into the threaded hole formed by the inner thread of the upper electrode 61 of the arrester, and the connection between the lower electrode 41 of the insulator and the upper electrode 61 of the arrester is fixedly connected by the pin 8 . A through hole is opened at the joint between the lower electrode 41 of the insulator and the upper electrode 61 of the arrester along the radial direction of the lower electrode 41 of the insulator, and the pin 8 is inserted into the through hole. Both the outside of the insulator support 4 and the outside of the arrester body 6 are wrapped with a silicone rubber jacket 9 , and the silicone rubber jacket wrapped outside the insulator support 4 and the outside of the arrester body 6 are integrally formed.
再请参阅图1，小绝缘罩2套接在绝缘子支撑件4的上端；小绝缘罩2的一侧开设一上引线安装孔，保护器上引线1的一端穿过该上引线安装孔并与绝缘子支撑件4的上端相连；上引流球3和下引流球5一一对应地设置在绝缘子支撑件4的上、下端，且上引流球3位于小绝缘罩2的下方；保护器安装板7固定在避雷器本体6的下端。Referring to Fig. 1 again, the small insulating cover 2 is sleeved on the upper end of the insulator support 4; one side of the small insulating cover 2 is provided with an upper lead installation hole, and one end of the upper lead 1 of the protector passes through the upper lead installation hole and is connected with the upper lead installation hole. The upper end of the insulator support 4 is connected; the upper drainage ball 3 and the lower drainage ball 5 are arranged on the upper and lower ends of the insulator support 4 in one-to-one correspondence, and the upper drainage ball 3 is located below the small insulating cover 2; the protector mounting plate 7 It is fixed on the lower end of the arrester body 6.
上引流球3通过上金属连接件安装在绝缘子支撑件4的上端；下引流球5过下金属连接件安装在绝缘子支撑件4的下端；上引流球3和下引流球5位于同一平面内。上引流球3包括横向部31和向下折弯部32，横向部31的一端与上金属连接件相固定，另一端与向下折弯部32的顶端相连，向下折弯部32的底端为上引流球的放电端，向下折弯部32的底端呈球形结构；下引流球5呈棒形结构，下引流球5的一端与下金属连接件相连，另一端呈球形结构且为下引流球5的放电端。The upper drainage ball 3 is installed on the upper end of the insulator support 4 through the upper metal connector; the lower drainage ball 5 is installed on the lower end of the insulator support 4 through the lower metal connector; the upper drainage ball 3 and the lower drainage ball 5 are located in the same plane. The upper drainage ball 3 includes a transverse portion 31 and a downwardly bent portion 32. One end of the transverse portion 31 is fixed to the upper metal connector, the other end is connected to the top of the downwardly bent portion 32, and the bottom of the downwardly bent portion 32 is The end is the discharge end of the upper drainage ball, and the bottom end of the downward bending part 32 is in a spherical structure; the lower drainage ball 5 is in a rod-shaped structure, and one end of the lower drainage ball 5 is connected with the lower metal connector, and the other end is in a spherical structure and It is the discharge end of the lower drainage ball 5.
绝缘子支撑件4由耐酸型环氧玻璃纤维拉挤成型。绝缘子支撑件4具有三个伞裙42。The insulator support 4 is pultruded from acid-resistant epoxy glass fiber. The insulator support 4 has three sheds 42 .
请参阅图3，本发明的本发明的绝缘子支撑固定间隙过电压保护器，现场安装十分简易便捷，保护器上引线1直接连入架空绝缘电缆10，保护器安装板7安装在位于被保护的绝缘子20的下端的绝缘子安装架201上。Please refer to Fig. 3, the insulator of the present invention supports the fixed gap overvoltage protector of the present invention, and the on-site installation is very simple and convenient. The lead wire 1 on the protector is directly connected to the overhead insulating cable 10, and the protector mounting plate 7 is installed on On the insulator mounting frame 201 of the lower end of the insulator 20.
本发明的绝缘子支撑固定间隙过电压保护器，针对10kV绝缘架空线路上遇到的雷电过电压、工频过电压和操作过电压等，进行有效全面的防护，将过电压击穿形成的工频电弧引入间隙燃烧，并通过金属氧化物避雷器将能量释放到大地，从而使高能量电弧弧根远离绝缘导线，避免了电弧烧断导线的情况，起到良好的防范雷击断线功能，而避雷器本体具有的优良非线性伏安特性，瞬间灭弧，空气间隙阻断了系统的工频续流，防止了雷击跳闸。The insulator-supported fixed-gap overvoltage protector of the present invention provides effective and comprehensive protection against lightning overvoltage, power frequency overvoltage, and operating overvoltage encountered on 10kV insulated overhead lines. The arc is introduced into the gap to burn, and the energy is released to the ground through the metal oxide arrester, so that the arc root of the high-energy arc is far away from the insulated wire, avoiding the situation of the arc burning the wire, and it has a good function of preventing lightning strike and disconnection. The arrester body It has excellent nonlinear volt-ampere characteristics, instantaneous arc extinguishing, and the air gap blocks the power frequency continuous flow of the system and prevents lightning tripping.
本发明的绝缘子支撑固定间隙过电压保护器与常规的过电压保护器不同之处：The difference between the insulator-supported fixed-gap overvoltage protector of the present invention and conventional overvoltage protectors:
(1)现场安装十分简易便捷，保护器上引线1直接连入架空绝缘电缆10，保护器安装板7安装在被保护的绝缘子20的绝缘子安装架201上，两步到位；(1) On-site installation is very simple and convenient. The upper lead wire 1 of the protector is directly connected to the overhead insulated cable 10, and the protector mounting plate 7 is installed on the insulator mounting frame 201 of the insulator 20 to be protected, and two steps are in place;
(2)以绝缘子支撑件4支撑构成的空气间隙，处在避雷器的上端，隔绝了线路系统对金属氧化物避雷器本体6的持续工频作用，延长避雷器的使用寿命；(2) The air gap formed by the support of the insulator support 4 is located at the upper end of the arrester, which isolates the continuous power frequency effect of the line system on the metal oxide arrester body 6, and prolongs the service life of the arrester;
(3)以绝缘子支撑件4支撑构成的空气间隙，空气间隙距离稳定，安装时免调整，避免受风摆、安装时等外力作用对间隙距离的影响，提高了保护器的电气性能稳定性；(3) The air gap formed by the support of the insulator support 4, the air gap distance is stable, no adjustment is required during installation, and the influence of external forces such as wind swing and installation on the gap distance is avoided, and the electrical performance stability of the protector is improved;
(4)绝缘子支撑件4的三个伞裙42，充分保证了整个过电压保护器的爬电距离，其耐污秽性能更加优异，伞裙与上下引流球构成的空气间隙绝缘配合良好，保证电弧放电路径在空气间隙之间。(4) The three sheds 42 of the insulator support 4 fully ensure the creepage distance of the entire overvoltage protector, and its pollution resistance performance is more excellent. The discharge path is between the air gaps.
本发明将绝缘子支撑件和金属氧化物避雷器直接连接一体结构，整体成型，使得整个过电压保护器更加小型化，绝缘防护可靠性增加，生产工艺要求更高，生产技术更进一步。The invention directly connects the insulator support and the metal oxide lightning arrester to form an integral structure, so that the entire overvoltage protector is more miniaturized, the insulation protection reliability is increased, the production process requirements are higher, and the production technology is further advanced.
以上实施例仅供说明本发明之用，而非对本发明的限制，有关技术领域的技术人员，在不脱离本发明的精神和范围的情况下，还可以做出各种变换或变型，因此所有等同的技术方案也应该属于本发明的范畴，应由各权利要求所限定。The above embodiments are only for the purpose of illustrating the present invention, rather than limiting the present invention. Those skilled in the relevant technical fields can also make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all Equivalent technical solutions should also belong to the scope of the present invention and should be defined by each claim.
Claims (8)
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| CN109346253A (en) * | 2018-12-21 | 2019-02-15 | 辽宁华隆电力科技股份有限公司 | A kind of novel metal oxide arrester |
| CN109509596A (en) * | 2018-12-21 | 2019-03-22 | 辽宁华隆电力科技股份有限公司 | A kind of metal oxide arrester |
| CN110767394A (en) * | 2019-12-04 | 2020-02-07 | 国网上海市电力公司 | An insulator-supported lightning arrester suitable for distribution network station area |
| CN114050013A (en) * | 2021-09-24 | 2022-02-15 | 上海兆邦电力器材有限公司 | Fully insulated and separable external series fixed gap arrester for live work |
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