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Ablation resistance detection device, ablation resistance detection method and ablation resistance evaluation method for arc extinguishing nozzle

An arc-extinguishing nozzle and detection device technology, which is applied to measuring devices, instruments, scientific instruments, etc., can solve the problems of inconvenient improvement of arc-extinguishing nozzles and inability to detect the ablation resistance of arc-extinguishing nozzles.

Pending Publication Date: 2020-06-02
HENAN PINGGAO ELECTRIC +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to provide an ablation resistance detection device for arc extinguishing nozzles, to solve the problem that the prior art cannot detect the ablation resistance of the improved arc extinguishing nozzles, so that the corresponding formula cannot be judged 1. The impact of molding process or shape on the ablation resistance of the arc extinguishing nozzle brings inconvenience to the improvement of the subsequent arc extinguishing nozzle. Another purpose of the present invention is to provide a method for evaluating the ablation resistance of the arc extinguishing nozzle , to solve the problem that it is impossible to determine the influence of formula, molding process and other factors on the ablation resistance of the arc extinguishing nozzle in the prior art, and bring inconvenience to the improvement of the subsequent arc extinguishing nozzle. Another purpose of the present invention is to provide a A kind of ablation resistance testing method for arc extinguishing nozzle, used for detecting the ablation resistance performance of arc extinguishing nozzle

Method used

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  • Ablation resistance detection device, ablation resistance detection method and ablation resistance evaluation method for arc extinguishing nozzle
  • Ablation resistance detection device, ablation resistance detection method and ablation resistance evaluation method for arc extinguishing nozzle
  • Ablation resistance detection device, ablation resistance detection method and ablation resistance evaluation method for arc extinguishing nozzle

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specific Embodiment 2

[0045] The specific embodiment 2 of the ablation resistance detection device for the arc extinguishing nozzle of the present application: the difference between this embodiment and the specific embodiment 1 is that the wiring sleeve is a wiring sleeve matched with the housing, and the wiring sleeve The voltage level of the pipe and the main body of the arc extinguishing chamber are the same, and the connection between the wiring sleeve and the basin-type insulator flange can be directly realized without setting a transition pipe.

specific Embodiment 3

[0046] The specific embodiment 3 of the ablation resistance detection device for the arc extinguishing nozzle of the present application: the difference between this embodiment and the specific embodiment 1 is that the hollow composite insulator is used to connect with the basin-type insulator flange at one end with an enlarged diameter Section, so that the hollow composite insulator flange and the hole diameter of the basin insulator flange are matched, and there is no need to set a transition tube at this time.

specific Embodiment 4

[0047] The specific embodiment 4 of the ablation resistance detection device for the arc extinguishing nozzle of the present application: the difference between this embodiment and the specific embodiment 1 is that the basin-type insulator is not provided with a ventilation channel, and the detection device needs to be inflated separately Inflate the shell and two wiring sleeves.

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Abstract

The invention relates to an ablation-resistant detection device, an ablation-resistant detection method and an ablation-resistant evaluation method for an arc extinguishing nozzle. The ablation resistance evaluation method for the arc extinguishing nozzle comprises a first step of taking at least two arc extinguishing nozzles with different single forming parameters, a second step of carrying outthe ablation resistance detection method for the arc extinguishing nozzles recorded in the invention under the same test condition, and a third step of comparing the ablation amount of each arc extinguishing nozzle and judging the influence of the single forming parameter on the ablation resistance. According to the ablation resistance evaluation method for the arc extinguishing nozzle, under thesame test conditions (the factors, such as voltage, current, ablation time, etc., influencing the ablation amount, are not changed), at least two arc extinguishing nozzles with different single forming parameters are detected, the influence of the single forming parameters on the ablation resistance of the arc extinguishing nozzles is judged according to the corresponding relation between the ablation amount and the single forming parameters (formula, forming process or shape), and technical support is provided for the subsequent improvement of the arc extinguishing nozzles.

Description

Technical field [0001] The invention relates to an ablation resistance detection device, a detection method and an evaluation method for an arc extinguishing nozzle. Background technique [0002] The arc extinguishing nozzle, as the core component of the arc extinguishing device of the circuit breaker to control the arc and create high-speed air blowing conditions, plays an extremely important role in opening and closing. It should not only have excellent electrical properties, mechanical properties and chemical corrosion resistance, but also fully consider the arc ablation resistance. When the circuit breaker is opening and closing, the arc burns in the nozzle and exchanges energy with the nozzle, causing the nozzle surface to ablate and internal decomposition. The ablation resistance of the nozzle material directly affects the breaking capacity and service life of the high-voltage circuit breaker. [0003] In the prior art, after the formulation, molding process and shape of th...

Claims

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Application Information

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IPC IPC(8): G01N25/00
CPCG01N25/00
Inventor 卢银花侯亚峰吴明清董保莹赵晓民李付永赵华伟
Owner HENAN PINGGAO ELECTRIC