Method for producing serially combined voltage-equalizing anti-explosion arrester

A lightning protection device and independent unit technology, applied in the direction of overvoltage arresters, electrical components, spark gaps, etc. that apply spark gaps, can solve problems such as explosion accidents, reduce insulation strength, reduce residual voltage values, and improve protection functions and safety The effect of the coefficient

Inactive Publication Date: 2007-01-10
YANTAI LUOHUA ELECTRIC POWER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this state, in case of lightning strike, single-phase grounding, load shedding, automatic reclosing and other accidents or malignant working conditions such as operating overvoltage, it is easy to cause an explosion accident

Method used

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  • Method for producing serially combined voltage-equalizing anti-explosion arrester
  • Method for producing serially combined voltage-equalizing anti-explosion arrester
  • Method for producing serially combined voltage-equalizing anti-explosion arrester

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Such as image 3 As shown, it is a three-unit combined explosion-proof arrester. This embodiment is suitable for each independent unit discharge voltage is 3.3KV, and its combined overall voltage is 10KV explosion-proof and lightning protection device. It is composed of three groups of units combined in series, gap pressure equalization and explosion-proof main part and fixed sealing shell part; the main part is composed of three units, and the structure of the upper, middle and lower units is roughly the same.

[0046] The main part of each unit is as image 3 Shown: The effective discharge large-plane porous ventilated discharge gap valve group (2) clamps the hollow insulating gasket (3) to form an effective discharge large-plane porous ventilated discharge gap valve group, which is inlaid and bonded in series with the surrounding waist. The center of the insulating arc-shielding positioning garden disc (5) has a vent hole and sticks a hollow ventilated zinc oxide r...

Embodiment 2

[0053] Such as Figure 4 As shown, this embodiment is a lightning protection and explosion-proof insulator with a discharge voltage of 3KV per independent unit.

[0054] The effective discharge large-plane porous ventilating discharge gap valve piece (2) is made of stainless steel, with an effective cross-sectional area of ​​816 square millimeters and a thickness of 1.8 millimeters. The thickness of the hollow insulating washer (3) is 3 millimeters. The thickness of ventilating type insulating arc-shielding positioning garden disc (5) is 2.5 millimeters. The middle hole ventilation type zinc oxide resistance (6) is zinc oxide, and the thickness is 15 millimeters.

[0055] Its structural components are basically the same as in Embodiment 1.

[0056] The discharge voltage of the explosion-proof lightning protection insulator of the power lightning protection line is 3KV, and the tensile force is 70KN. The simulated lightning strike is 4 / 10us high-current impact, the maximum c...

Embodiment 3

[0058] This embodiment is an explosion-proof and lightning protection device with a discharge voltage of 1KV per independent unit.

[0059] The effective discharge large-plane porous ventilating discharge gap valve piece (2) is made of stainless steel, with an effective cross-sectional area of ​​325 square millimeters and a thickness of 0.6 millimeters. The thickness of the hollow insulating washer (3) is 0.9 mm. The thickness of the ventilation type insulating arc shielding positioning garden disk is 1.2 millimeters. The middle hole ventilation type zinc oxide resistance (6) is zinc oxide, and the thickness is 12 millimeters.

[0060] The main part of this embodiment is composed of one unit. Its structural components are basically the same as in Embodiment 1.

[0061] The discharge voltage of the electric lightning protection line is 1KV, the tensile force is 70KN, the simulated lightning strike is 4 / 10us high current impact, the maximum current is 43.42KA, the total resid...

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Abstract

This invention relates to a method for producing insulated lightning protection of transmission and distribution line equipment. The invented method for producing explosion, lightning protection devices of unit combined serial gap voltage-sharing which includes its main body part and fixing sealed sheel. The main body part constitutes at least a set of discharging gap valves in effective discharging large panel porous ventilation type discharging gap valve plate clamping hollow insulation pads connected in series with at least a set of hollow ventilation metal zinc oxide composite stuck with insulated tubes and ventilation holes at the center adhered with ventilation insulating arc shield location disks around its waist, available in the production of lightning protection explosion proof insulators and explosion proof lightning arrestors.

Description

(1) Technical field [0001] The invention relates to an explosion-proof and lightning protection device for power transmission and distribution line equipment. (2) Background technology [0002] In 1970, Panasonic Corporation of Japan took the lead in successfully developing a nonlinear zinc oxide resistor. At present, the lightning arrester formed by stacking and superimposing zinc oxide resistors is popular in the world. It has the advantages of good nonlinear protection characteristics, large energy absorption capacity, and good stability. But at the same time, there are also disadvantages that are difficult to overcome, that is, when a large current passes through, a large residual voltage and leakage currents of various sizes are generated, which can easily cause ant nests to break the bank. First of all, the surge arrester will generate a high residual voltage when passing a large current. In order to ensure the safety of the line equipment, it must meet the insulation...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01C7/12H01T4/00
Inventor 唐圣严唐勇唐伟唐虹
Owner YANTAI LUOHUA ELECTRIC POWER TECH
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