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Core rod of ultra-high-voltage post composite insulator and manufacturing method thereof

A composite insulator and UHV technology, applied in the mandrel for UHV post composite insulator and its manufacturing field, can solve the problems of easy fracture, affecting the electrical performance and life of the product, and brittle fracture, so as to improve wind resistance and bending resistance Ability, great practical and popularization value, high effect of mechanical performance

Inactive Publication Date: 2010-06-23
南方电网技术研究中心 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

All-ceramic post insulators are heavy and prone to defects such as fracture and brittle fracture
Porcelain core composite sheath post insulators are manufactured by bonding the shed made of silicone rubber synthetic material to the porcelain post. Since the porcelain core is not made by precision machining, the microscopic unevenness on the surface may easily cause the silicone rubber shed to stick. If the junction is not strong, bubbles and other phenomena will be generated, which will affect the electrical performance and life of the product
Hollow composite post insulators use hollow insulating tubes as posts, and are filled with insulating gas or filled with foam for insulation. Since the gas and fillings are prone to leakage, it is necessary to monitor the changes of the internal gas and fillings, and there are certain hidden dangers in safety.

Method used

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  • Core rod of ultra-high-voltage post composite insulator and manufacturing method thereof
  • Core rod of ultra-high-voltage post composite insulator and manufacturing method thereof
  • Core rod of ultra-high-voltage post composite insulator and manufacturing method thereof

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Embodiment Construction

[0039] Refer to attached figure 1 , with figure 2 , the mandrel for ultra-high voltage post composite insulators of the present invention is composed of a rod core 1 and a winding tube 2, the winding tube 2 is arranged on the periphery of the rod core 1, and the winding tube 2 is a tube that is wound and cured by glass fiber yarn impregnated with epoxy resin glue Body, the rod core 1 is a core with a damping groove 11 on the surface, and the damping groove 11 on the rod core 1 is a spiral arc groove. The winding pipe 2 is composed of layer I 21, layer II 22, and layer III 23, and layer I 21, layer II 22, and layer III 23 are respectively wound and cured by glass fiber yarn impregnated with epoxy resin glue , the layer I 21 in the winding pipe 2 is composed of an inner layer I21a and an outer layer I 21b, and the winding angle α of the glass fiber yarn of the inner layer I 21a 1 For: 25°≤α 1 ≤30°; the winding angle β of the glass fiber yarn of the outer layer I 21b 1 For: ...

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Abstract

The invention relates to a core rod of an ultra-high-voltage post composite insulator used for power transmission and transformation in the power industry and a manufacturing method thereof. The core rod consists of a rod core and a winding tube, wherein the winding tube is arranged on the periphery of the rod core and is a tube made by winding and curing a glass fiber yarn dipped with epoxy resin glue. The core rod is characterized in that the rod core is a core body with a damping slot on the surface thereof, and the winding tube consists of a layer I, a layer II and a layer III, and the three layers are respectively formed by winding and curing a glass fiber yarn dipped with epoxy resin glue. Since the pultrusion rod is used as an inner core, and the damping slot is processed on the surface of the rod core, the connection between the rod core and the winding tube is more reliable; and since the winding tube consists of multiple layers and forms a large-diameter core rod through laminated winding and curing, the invention improves the performance of the winding tube, is applicable to the ultra-high-voltage condition and greatly improves the wind resistance and bending resistance of the post composite insulator.

Description

technical field [0001] The invention relates to a mandrel of a composite insulator used for power transmission and transformation in the power industry, in particular to a mandrel for an ultra-high voltage post composite insulator and a manufacturing method thereof. Background technique [0002] After retrieving relevant patent documents, no mandrel and its manufacturing method for UHV post composite insulators with the same structure as the present invention have been retrieved. The existing post insulators for power transmission and transformation mainly include: all-ceramic post insulators, porcelain core composite jacket post insulators, hollow composite post insulators and solid composite post insulators. All-ceramic post insulators are heavy and prone to defects such as fracture and brittle fracture. Porcelain core composite sheath post insulators are manufactured by bonding the shed made of silicone rubber synthetic material to the porcelain post. Since the porcelain...

Claims

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Application Information

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IPC IPC(8): H01B17/38H01B17/14
Inventor 赵杰李立浧罗兵
Owner 南方电网技术研究中心
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