A high voltage glass insulator, also known as a toughened glass insulator, is an electrical insulation component used in high-voltage transmission and distribution lines. It is typically assembled into insulator strings to support conductors and prevent current leakage. First manufactured around the s, the high voltage glass insulator has been widely used ever since due to its excellent mechanical strength and electrical performance.

For more information, please visit Yipeng.

How are High Voltage Glass Insulators Made?

The high-voltage glass insulator comprises a toughened glass disc, a hot-dip galvanized cap and pin, and a stainless steel security clip, all bonded with high-strength cement adhesive.

High Voltage Glass Insulator Manufacturing Process (How the Toughened Glass Disc Is Made)

1. Raw Material Preparation – 2. Melting – 3. Molding – 4. Annealing – 5. Toughening (Tempering) – 6. Quality Inspection – 7. Storage and Transportation

Production Line Diagram for High Voltage Glass Insulators

How do High Voltage Glass Insulators Work?

Mechanical Support
High voltage glass insulators withstand mechanical stresses such as tension, wind, and ice loads through:

• Tempered glass strength – Enhances durability and ensures line stability.
• Series configuration – Multiple insulators in a string adapt to different voltage and load requirements.
• Self-destruction feature – If broken, the glass shatters safely while metal fittings remain connected, preventing system failure.

Electrical Insulation
High voltage glass insulators prevent high-voltage conductors from leaking current to grounded towers or poles through:

• High resistance material – Glass is a poor conductor, effectively blocking current flow.
• Extended creepage distance – Disc or open-type designs increase the surface path to reduce flashover caused by pollution.
• Anti-pollution properties – The smooth glass surface resists dust accumulation, minimizing electrical breakdown risks.

How to Choose the Right High Voltage Glass Insulators: 3 Key Considerations

1. Drawings and Technical Parameters of High Voltage Glass Insulators

When selecting glass insulators, the following key technical parameters should be considered:

• Nominal Creepage Distance: A longer creepage distance helps prevent leakage or breakdown caused by surface polarization of the insulating material, ensuring the safe operation of electrical equipment.
• Minimum Mechanical Damage Load: For example, 120 kN (as shown in the drawing).
• Suitable Coupling Size: A standardized size facilitates the assembly of a stable insulator string.
• Hot-Dip Galvanized Accessories: Corrosion-resistant for long-term durability.

You can choose between IEC or ANSI international standards based on the requirements of your power transmission and distribution project. To purchase glass insulators, simply provide your drawings and technical specifications to the manufacturer for verification. They will then produce and quote based on your requirements.

2. Line Voltage Selection

The appropriate high-voltage glass insulator should be selected based on the line voltage. You can refer to the table below for guidance.

Based on Gaoya Power‘s 20 years of experience in supplying glass insulators:

• For 220 kV transmission lines, glass insulators with a mechanical strength of 160 kN or higher are recommended.
• For 500 kV and above ultra-high voltage (UHV) lines, glass insulators with a mechanical strength of 300 kN or more are typically used.

3. Environmental Considerations

Different environmental conditions require different types of high voltage glass insulators for optimal performance:

• Standard Glass Insulators: Suitable for low-pollution areas with conventional environmental conditions.
• Anti-Pollution Glass Insulators: Recommended for high salt fog, high humidity, and highly polluted areas, as they feature a longer creepage distance to prevent contamination-related failures.
• Aerodynamic Glass Insulators: Best suited for arid and sandy environments, where their streamlined design helps reduce dust and rain adhesion. These insulators are also ideal for use in deserts and industrial pollution zones.
• Standard Insulators in Cold Climates: In extremely cold environments without nearby pollution sources, standard glass insulators are an appropriate choice.

How do Pollutants Affect High-Voltage Glass Insulators?

Pollutants like dust, industrial emissions, salt spray, and bird droppings can weaken the performance of glass insulators in several ways:

• Reduced Insulation & Conductive Layer Formation
  Moisture turns surface contaminants into a conductive layer, increasing leakage current and possibly leading to arc discharge or flashover.
• Pollution Flashover Risk
  In humid or foggy conditions, pollutants lower surface resistance, making it easier for high voltage to break down the air, causing sudden short-circuit discharge.
• Increased Leakage Current & Energy Loss
  A continuous conductive path from wet pollutants raises leakage current, causing power loss, overheating, and faster aging of the insulator.

Four Solutions to Reduce the Effects of Pollution on High-Voltage Glass Insulators

• Use Anti-Pollution Insulators
  Designed with long creepage distances, these insulators extend the surface path for leakage current, reducing the risk of flashover.
• Perform Regular Cleaning
  High-pressure water washing or manual cleaning helps remove accumulated contaminants and maintain insulation performance.
• Apply Anti-Fouling Coatings
  Coatings like silicone rubber enhance water repellency, preventing moisture absorption and reducing flashover risk.
• Optimize Insulator Configuration
  Increasing the number of insulators improves the overall insulation level, reducing the impact of environmental pollution.

Why Choose High-Voltage Glass Insulators?

CNA - Aerodynamic Disc Suspension Glass Insulator Replacement Fixture - Google Patents

Aerodynamic Disc Suspension Glass Insulator Replacement Fixture Download PDF

Info

Publication number

CNA

CNA CNA CNA CNA CN A CN A CN A CN A CN A CN A CN A CN A CN A CN A CN A CN A

Authority

CN

China

Prior art keywords

glass insulator

aerodynamic

clamp

screw

live

Prior art date

-05-28

Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Pending

Application number

CNA

Other languages

Chinese (zh)

Inventor

张洪君

安云强

潘跃

刘洋

范守敏

祖广魁

李赞

赵小卫

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

State Grid Corp of China SGCC

State Grid Liaoning Electric Power Co Ltd

Original Assignee

State Grid Corp of China SGCC

State Grid Liaoning Electric Power Co Ltd

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

-05-28

Filing date

-05-28

Publication date

-08-28

-05-28 Application filed by State Grid Corp of China SGCC, State Grid Liaoning Electric Power Co Ltd filed Critical State Grid Corp of China SGCC

-05-28 Priority to CNA priority Critical patent/CNA/en

-08-28 Publication of CNA publication Critical patent/CNA/en

Status Pending legal-status Critical Current

Links

• Espacenet
• Global Dossier
• Discuss

• insulator Substances 0.000 title claims abstract description 37
• glass Substances 0.000 title claims abstract description 26
• suspension Substances 0.000 title claims description 4
• Structural steel Inorganic materials 0.000 claims abstract description 10
• protective effect Effects 0.000 claims description 9
• biological transmission Effects 0.000 abstract description 6
• method Methods 0.000 abstract description 3
• electric field Effects 0.000 abstract description 2
• manufacturing process Methods 0.000 abstract description 2
• electricity Effects 0.000 abstract 2
• defect Effects 0.000 abstract 1
• elimination Effects 0.000 abstract 1
• elimination reaction Methods 0.000 abstract 1
• diagram Methods 0.000 description 4
• insulation Methods 0.000 description 3
• XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
• composite material Substances 0.000 description 1
• drinking water Substances 0.000 description 1
• drinking water Nutrition 0.000 description 1
• effects Effects 0.000 description 1
• favourable effect Effects 0.000 description 1
• inspection Methods 0.000 description 1

Images

Landscapes

• Insulators (AREA)
• Electric Cable Installation (AREA)

Abstract

The invention relates to an aerodynamic disc-shaped suspending type glass insulator replacing clamp which is suitable for operation of professionally replacing and adding a large-edge glass insulator under a live-working condition in the process of electricity transmission. According to the structure, the aerodynamic disc-shaped suspending type glass insulator replacing clamp is characterized in that a fixing girder is arranged between screw rods, a fastener is arranged on the fixing girder, and a socket clamp is connected with the lower portions of the screw rods. According to the aerodynamic disc-shaped suspending type glass insulator replacing clamp, the large-edge glass insulator can be replaced easily, the socket clamp is installed on angle iron arranged above a hanging point, ground electric potential operation is conducted by an operator, the operation is conducted in a position away from a strong electric field, safety of live-working is improved to a great extent, working intensity of the operator is reduced, operation cost is reduced, advantages are provided to the performance of the live-working, defect elimination can be conducted on the ground electric potential operation in time, safe and stable operation of a power network is guaranteed, reliability of power distribution of an electric transmission line is effectively improved and the aerodynamic disc-shaped suspending type glass insulator replacing clamp can be popularized and used in the professional electricity transmission and production easily.

Description

空气动力型盘型悬式玻璃绝缘子更换卡具Aerodynamic Disc Suspension Glass Insulator Replacement Fixture

技术领域 technical field

本发明涉及一种绝缘子更换工具，尤其涉及一种空气动力型盘型悬式玻璃绝缘子更换卡具，适于输电专业带电更换、增加大沿玻璃绝缘子作业。 The invention relates to an insulator replacement tool, in particular to an aerodynamic disk-type suspended glass insulator replacement jig, which is suitable for live replacement and addition of large-edge glass insulators in the field of power transmission.

背景技术 Background technique

目前220kV线路直线串绝缘组合大多为，横担端为1片大沿玻璃绝缘子，下端为合成绝缘子，由于线路遭受雷击，造成大沿玻璃绝缘子绝缘值低，表面有闪络痕迹，不适合再运行及下次雷击故障点查找。另外为了提高线路绝缘水平，部分原只是合成绝缘子的，目前也在逐步增加大沿玻璃绝缘子，但现有技术中大多只能停电进行更换或增加。 At present, most of the insulation combinations of 220kV lines are straight line series. The cross-arm end is a large-edge glass insulator, and the lower end is a composite insulator. Because the line is struck by lightning, the insulation value of the large-edge glass insulator is low, and there are flashover marks on the surface, so it is not suitable for further operation. And find the fault point of the next lightning strike. In addition, in order to improve the insulation level of the line, some of them were only synthetic insulators, and the large edge glass insulators are also gradually added at present, but most of them can only be replaced or added after power failure in the prior art.

发明内容 Contents of the invention

本发明针对上述现有技术中存在的问题，提供了一种空气动力型盘型悬式玻璃绝缘子更换卡具，解决了现有技术中作业人员必须直接提升导线才能转移荷载的问题。 Aiming at the problems in the above-mentioned prior art, the present invention provides an aerodynamic disc-type suspension glass insulator replacement jig, which solves the problem in the prior art that operators must directly lift the wires to transfer the load.

本发明的技术方案如下： Technical scheme of the present invention is as follows:

丝杠之间设有固定梁，固定梁上设有紧固件，丝杠的下部连接有碗头卡具。 Fixed beams are arranged between the leading screws, fasteners are arranged on the fixed beams, and bowl head clamps are connected to the lower part of the leading screws.

所述的紧固件为固定销或保护夹板。 The fasteners are fixing pins or protective splints.

For more information, please visit Composite Insulator.

所述的固定销通过元宝螺丝固定在角铁上。 The fixed pin is fixed on the angle iron by the ingot screw.

所述的保护夹板为4片V型板。 The protective splints are four V-shaped plates.

所述的碗头卡具采用卡槽和元宝螺丝紧固。 The bowl head fixture is fastened with a card slot and ingot screws.

所述的碗头卡具与绝缘子碗头相匹配。 The bowl head fixture is matched with the insulator bowl head.

所述的丝杠上设有丝杠扳手。 A lead screw wrench is provided on the lead screw.

本发明的优点效果如下： The advantages and effects of the present invention are as follows:

对更换大沿玻璃绝缘子非常容易，卡具安装在挂点上方角铁上，作业人员属地电位作业，远离强电场进行操作，大幅度提高带电作业的安全性，减轻作业人员劳动强度，降低作业成本，为开展带电作业提供有利条件，可及时进行地电位作业消缺，保证电网安全稳定运行，有效地提高了输电线路供电可靠性，易于在输电生产专业推广使用。 It is very easy to replace the large edge glass insulator. The fixture is installed on the angle iron above the hanging point. The operator works at the ground potential and operates away from the strong electric field, which greatly improves the safety of live work, reduces the labor intensity of the operator, and reduces the operating cost. , to provide favorable conditions for carrying out live-line work, it can timely eliminate the lack of ground potential work, ensure the safe and stable operation of the power grid, effectively improve the reliability of power supply of transmission lines, and be easy to promote and use in power transmission production.

附图说明 Description of drawings

图1为本发明的结构示意图。 Fig. 1 is a structural schematic diagram of the present invention.

图2为本发明的实施例结构示意图。 Fig. 2 is a structural schematic diagram of an embodiment of the present invention.

图3为本发明的碗头卡具的局部结构示意图。 Fig. 3 is a schematic diagram of a partial structure of the bowl head jig of the present invention.

图4为本发明保护夹板的局部结构示意图。 Fig. 4 is a schematic diagram of a partial structure of the protective splint of the present invention.

图中： 1、丝杠，2、固定销，3、横担角铁，4、大沿玻璃绝缘子，5、合成绝缘子，6、碗头卡具，7、保护夹板，8、固定梁。 In the figure: 1. Lead screw, 2. Fixed pin, 3. Cross arm angle iron, 4. Large edge glass insulator, 5. Synthetic insulator, 6. Bowl clamp, 7. Protective splint, 8. Fixed beam.

具体实施方式 Detailed ways

以下参照附图，结合具体实施例，详细描述本发明。 The present invention will be described in detail below in conjunction with specific embodiments with reference to the accompanying drawings.

实施例1Example 1

如图1、3所示，为挂点角铁不喝水时更换、增加大沿玻璃绝缘子作业，丝杠1上设有丝杠扳手，丝杠1之间设有固定梁8，固定梁8上设有固定销2，固定销2通过元宝螺丝固定在横担角铁3上，丝杠1的下部连接有与绝缘子碗头相匹配的碗头卡具6，碗头卡具6采用卡槽和元宝螺丝紧固。 As shown in Figures 1 and 3, for the replacement and addition of large edge glass insulators when the hanging point angle iron does not drink water, a screw wrench is provided on the screw 1, and a fixed beam 8 is installed between the screw 1, and the fixed beam 8 There is a fixed pin 2 on the top, and the fixed pin 2 is fixed on the cross-arm angle iron 3 through the ingot screw. The lower part of the lead screw 1 is connected with the bowl head fixture 6 matching the insulator bowl head. The bowl head fixture 6 adopts a card slot Fasten with ingot screws.

实施例2Example 2

如图2所示，为挂点角铁喝水时更换、增加大沿玻璃绝缘子作业，所述的固定梁通过保护夹板7固定，保护夹板7为4片V型板。其它结构同实施例1。 As shown in Figure 2, when drinking water for the hanging point angle iron, replace and increase the large edge glass insulator operation, the fixed beam is fixed by the protective splint 7, and the protective splint 7 is 4 V-shaped plates. Other structures are with embodiment 1.

本发明的工作过程如下。 The working process of the present invention is as follows.

作业人员将卡具固定梁放置横担挂点正上方，如带电作业，需要穿戴合格的均压服，将固定销搬至横担角铁上，上紧元宝螺丝，如果横担角铁安装位喝水时，利用保护夹板固定卡具固定梁，调节丝杠扳手，将绝缘子碗头卡具调整到能够卡上绝缘子碗头位置，将碗头卡具与碗头卡牢，并将螺丝上紧，检查各部连接，将导线保护绳挂好，带电作业应选择挂绝缘绳， 检查无误后，搬动丝杠，提升整个卡具，并带动绝缘子提升，当绝缘子提升到球头能够从碗头脱出时，停止提升，再次检查各部连接无误后，拔出碗头弹簧销，即销针，拔出大沿玻璃绝缘子销针，将大沿玻璃绝缘子取出，反顺序进行安装和拆卸卡具。 The operator places the fixture fixing beam directly above the hanging point of the cross-arm. If the work is live, it needs to wear a qualified pressure equalizing suit, move the fixing pin to the cross-arm angle iron, and tighten the ingot screw. If the cross-arm angle iron is installed in place When the water is in the water, use the protective splint to fix the fixture to fix the beam, adjust the screw wrench, adjust the insulator bowl fixture to the position where it can be stuck on the insulator bowl, clamp the bowl fixture and the bowl firmly, and tighten the screws. Check the connection of each part, hang the wire protection rope well, and choose to hang the insulating rope for live work. After the inspection is correct, move the lead screw, lift the whole fixture, and drive the insulator to lift. When the insulator is lifted to the point where the ball head can come out of the bowl head , stop the lifting, check again that the connection of each part is correct, pull out the bowl head spring pin, that is, the pin, pull out the pin of the big edge glass insulator, take out the big edge glass insulator, and install and remove the fixture in reverse order.

本发明的保护范围以权利要求为准，不受具体实施例所限制。 The scope of protection of the present invention is based on the claims, and is not limited by specific embodiments.

Claims (7)

1.空气动力型盘型悬式玻璃绝缘子更换卡具；其特征在于丝杠之间设有固定梁，固定梁上设有紧固件，丝杠的下部连接有碗头卡具。 1. Aerodynamic type suspension glass insulator replacement jig; It is characterized in that there are fixed beams between the screw screws, fasteners are arranged on the fixed beams, and bowl head jigs are connected to the lower part of the screw screws. 2. 根据权利要求1所述的空气动力型盘型悬式玻璃绝缘子更换卡具，其特征在于所述的紧固件为固定销或保护夹板。 2. The jig for replacing aerodynamic disc-type suspension glass insulators according to claim 1, wherein the fasteners are fixed pins or protective splints. 3.根据权利要求2所述的空气动力型盘型悬式玻璃绝缘子更换卡具，其特征在于所述的固定销通过元宝螺丝固定在角铁上。 3. The aerodynamic plate-type suspended glass insulator replacement jig according to claim 2, characterized in that the fixing pin is fixed on the angle iron by an ingot screw. 4.根据权利要求2所述的空气动力型盘型悬式玻璃绝缘子更换卡具，其特征在于所述的保护夹板为4片V型板。 4. The aerodynamic plate-type suspended glass insulator replacement jig according to claim 2, characterized in that the protective splints are four V-shaped plates. 5.根据权利要求1所述的空气动力型盘型悬式玻璃绝缘子更换卡具，其特征在于所述的碗头卡具采用卡槽和元宝螺丝紧固。 5. The aerodynamic plate-type suspended glass insulator replacement jig according to claim 1, characterized in that the bowl head jig is fastened by a slot and an ingot screw. 6.根据权利要求1或5所述的空气动力型盘型悬式玻璃绝缘子更换卡具，其特征在于所述的碗头卡具与绝缘子碗头相匹配。 6. The aerodynamic plate-type suspended glass insulator replacement jig according to claim 1 or 5, characterized in that the bowl head jig matches the insulator bowl head. 7.根据权利要求1所述的空气动力型盘型悬式玻璃绝缘子更换卡具，其特征在于所述的丝杠上设有丝杠扳手。 7. The jig for replacing the aerodynamic disk-type suspended glass insulator according to claim 1, wherein a screw wrench is provided on the screw. CNA -05-28 -05-28 Aerodynamic Disc Suspension Glass Insulator Replacement Fixture Pending CNA (en)

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Cited By (2)

* Cited by examiner, † Cited by third party Publication number Priority date Publication date Assignee Title CNA (en) * -07-08 -10-22 国家电网公司 Single-string-insulator maintenance device CNA (en) * -10-09 -01-11 国家电网公司 Replace the operational method and its closed fixture yoke plate device of 500kV aerodynamic type insulator

Citations (7)

* Cited by examiner, † Cited by third party Publication number Priority date Publication date Assignee Title USA (en) * -10-27 -01-03 Semple, Jr.; Alan R. Electrical insulator change-out tool CNY (en) * -09-22 -07-01 华北电网有限公司张家口供电公司 Composite insulator end chucking appliance CNA (en) * -03-23 -12-15 福建省电力有限公司厦门电业局 Straight line tower closed hanging wire board insulator series ground potential live replacement device CNU (en) * -12-23 -08-24 保定供电公司 Universal clamp apparatus for cross arm of electric transmission line tangent tower JPA (en) * -02-22 -09-01 Chugoku Electric Power Co Inc:The Device and method for fixing insulator chain CNA (en) * -08-12 -12-07 江苏省电力公司南京供电公司 Tools for live replacement of tension insulators CNU (en) * -09-19 -04-25 湖南省电力公司长沙电业局 Aerodynamic insulator replacing tool for steel tower side phase cross arms

• • -05-28 CN CNA patent/CNA/en active Pending

Patent Citations (7)

* Cited by examiner, † Cited by third party Publication number Priority date Publication date Assignee Title USA (en) * -10-27 -01-03 Semple, Jr.; Alan R. Electrical insulator change-out tool CNY (en) * -09-22 -07-01 华北电网有限公司张家口供电公司 Composite insulator end chucking appliance JPA (en) * -02-22 -09-01 Chugoku Electric Power Co Inc:The Device and method for fixing insulator chain CNA (en) * -03-23 -12-15 福建省电力有限公司厦门电业局 Straight line tower closed hanging wire board insulator series ground potential live replacement device CNU (en) * -12-23 -08-24 保定供电公司 Universal clamp apparatus for cross arm of electric transmission line tangent tower CNA (en) * -08-12 -12-07 江苏省电力公司南京供电公司 Tools for live replacement of tension insulators CNU (en) * -09-19 -04-25 湖南省电力公司长沙电业局 Aerodynamic insulator replacing tool for steel tower side phase cross arms

Cited By (4)

* Cited by examiner, † Cited by third party Publication number Priority date Publication date Assignee Title CNA (en) * -07-08 -10-22 国家电网公司 Single-string-insulator maintenance device CNB (en) * -07-08 -01-11 国家电网公司 Single-string-insulator maintenance device CNA (en) * -10-09 -01-11 国家电网公司 Replace the operational method and its closed fixture yoke plate device of 500kV aerodynamic type insulator CNB (en) * -10-09 -02-14 国家电网公司 Operation method for replacing 500kV aerodynamic insulator and closed clamping yoke plate device thereof

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Date Code Title Description -08-28 C06 Publication -08-28 PB01 Publication -09-25 C10 Entry into substantive examination -09-25 SE01 Entry into force of request for substantive examination -04-05 RJ01 Rejection of invention patent application after publication

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