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Numerical control alarm drop-out fuse for preventing freezing rain

A fuse and sensor technology, applied in the field of anti-freezing rain numerical control alarm drop fuse, can solve the problems of personal safety hazards, high labor intensity, difficult operation, etc., to ensure no-phase operation, reduce labor intensity, and avoid line power outages Effect

Inactive Publication Date: 2012-01-11
河南一互电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the drop-out fuses currently used in the power sector, relying on manual push and pull with operating rods to open and close, the labor intensity is high, the operation is difficult, the personal safety hazard is serious, and it is difficult to operate in most harsh weather environments, especially At the beginning of 2008, several provinces in the south encountered the freezing rain disaster that occurred once in decades, which caused most of the outdoor drop-out fuses to fail to work or be damaged. The emergence of a new type of drop-out fuse has become an inevitable trend.

Method used

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  • Numerical control alarm drop-out fuse for preventing freezing rain
  • Numerical control alarm drop-out fuse for preventing freezing rain
  • Numerical control alarm drop-out fuse for preventing freezing rain

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] In the present embodiment, the anti-freezing rain method of dropping fuse comprises the following steps:

[0026] ① Collect the temperature signal of the action mechanism of the drop fuse and its action contacts in real time;

[0027] ②The collected temperature signal is sent to the electronic control part for analysis and processing. When the temperature reaches the set limit value, the heating protection device is activated, and the hot air is blown to the action mechanism and its action contacts.

[0028] Specifically, in step ②, when the collected temperature value reaches 1°C, the heating protection device is activated to blow hot air onto the action mechanism and its action contacts. The above-mentioned heating protection device includes a blower fan and a heating element.

[0029] like figure 1 , Figure 4 As shown, in order to implement the above method, the anti-freezing rain numerical control alarm drop fuse in this embodiment includes a mechanical transmis...

Embodiment 2

[0032] On the basis of Embodiment 1, this embodiment also includes the following technical features:

[0033] In step ① of the anti-freezing rain method for drop-out fuses, in addition to collecting temperature signals of the operating mechanism of the drop-out fuse and its operating contacts, it is also necessary to collect humidity signals. Correspondingly, in the drop-out fuse, a corresponding humidity sensor needs to be set on the operating mechanism of the mechanical transmission part and its operating contacts. The above-mentioned humidity sensor, like the temperature sensor, can be set according to actual needs, that is, one, four, six or even more.

[0034] Specifically, in addition to the temperature drop to a certain degree, the conditions for freezing rain also require a certain degree of humidity. When both are satisfied, freezing rain may occur. In this way, under the condition that the operating mechanism and its operating contacts are provided with a temperatur...

Embodiment 3

[0037] like figure 2 As shown, this embodiment adds the numerical control function on the basis of embodiment 1.

[0038] In the anti-freezing rain method of the drop-out fuse, when freezing rain is artificially found on the working mechanism and its action contacts, the remote control computer or portable remote control can send instructions to the electronic control part, and then the electronic control part controls the motor. The driving part starts to work and drives the mechanical transmission part and the main body part successively. The above-mentioned instructions issued by the remote control computer or the portable remote controller can be through infrared, bluetooth or wireless Zigbee network. Sending instructions through infrared, bluetooth or wireless Zigbee network are all technologies well known to those of ordinary skill in the art.

[0039]Correspondingly, in order to realize the numerical control function, a corresponding infrared, bluetooth or wireless Z...

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Abstract

The invention discloses a freezing rain preventing method of a drop-out fuse, comprising the following steps of: (1) acquiring temperature signals of an action mechanism of the drop-out fuse and an action contact thereof in real time; and (2) analyzing and processing the acquired temperature signals, starting a heating and protecting device when the temperature reaches a set threshold and blowinghot air to the action mechanism of the drop-out fuse and the action contact thereof. In the invention, since a control part and a freezing rain preventing part are arranged, a sensor can acquire the temperature signals and humidity signals to the electronic control part in real time when the action mechanism of the drop-out fuse and the action contact thereof appear freezing rain; and through theanalysis and processing, a fan and a heating element start to work, hot air is blown to the action mechanism and the action contact through an air channel, and the freezing rain is thawed, thereby effectively achieving the function of preventing the freezing rain. In addition, the electronic control part is also connected with a GSM communication circuit, can instantly upload to a remote control computer after the drop-out fuse drops out and send an alarm signal.

Description

technical field [0001] The invention relates to a method for preventing freezing rain of a drop-out fuse, in particular to a method for preventing freezing rain of an operating mechanism and its operating contacts of the drop-out fuse, and a device used in the method. Background technique [0002] Drop-out fuse is the most commonly used short-circuit protection switch for branch lines of 10kV distribution lines and distribution transformers. It has the characteristics of economy, convenient operation, and strong adaptability to outdoor environments. It is widely used in 10kV distribution lines and primary transformers. Side short circuit, overload protection and opening and closing load current. As the simplest protective electrical appliance in the power grid, it is necessary to provide good safety protection for the operator when operating it. Qualified insulating rods, commonly known as gram rods, must be used, and they are divided into two situations: switching and closi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H73/34H01H85/54H01H1/62
Inventor 方太命王俊清
Owner 河南一互电气有限公司
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