Title: Design and Application of Door Hinge of Arc-proof Distribution Box
With the continuous development and upgrading of power system, while ensuring the safe operation of power facilities, people's safety protection has been paid more and more attention. In recent years, due to the overload and short circuit of electrical equipment, arc accidents frequently occur, resulting in huge property losses and even casualties. Therefore, it is an urgent task to develop and apply arc protection technology. Among them, the research and application of the door hinge of arc-proof distribution box in high-voltage switchgear and other equipment is of great significance to improve the safety of the whole power system.
I. Background introduction
In power system, distribution box is one of the important links to connect power supply and electrical equipment, and its safety performance directly affects the safe and stable operation of the whole power grid. Especially in some special occasions (such as chemical plants, mines, etc.), due to complex and changeable environmental factors, once a fault causes an arc accident, it will not only cause serious damage to the equipment itself, but also endanger the life safety of operators. Therefore, how to effectively prevent or reduce such accidents is one of the urgent problems to be solved.
Second, the design principle
Traditional distribution box doors are mostly made of ordinary metal materials and fixed by simple mechanical structure. Although this design can meet the basic use requirements, it is easy to be melted, deformed or even broken off when encountering high-temperature arc generated by strong current, which can not prevent the internal heat from leaking out and increase the safety hazard. On this basis, the door hinge of the new anti-arc distribution box has made many innovations and improvements:
1. Material selection: made of high-strength heat-resistant alloy steel or other high-performance composite materials, which can maintain good physical and chemical properties under extreme conditions.
2. Structural optimization: through the improvement and strengthening of the traditional hinge structure, the cupboard door can remain stable under the condition of bearing large impact force; At the same time, a fire-proof insulation layer is added to reduce the influence of external temperature.
3. Functional integration: modern sensing technology and remote monitoring system are combined to realize intelligent management, for example, when abnormal signals are detected, the locking mechanism is automatically triggered to avoid false opening.
Third, the actual application effect analysis
After many simulation tests, it shows that this type of hinge product can effectively resist the threats brought by various emergencies and greatly reduce the risk of secondary disasters caused by electric arc. The specific performance is as follows:
The simulation of arc events in real working environment in the laboratory shows that the new hinge can significantly improve the protection effect compared with the traditional style.
The feedback data of practical engineering cases further verified the above conclusion-the distribution equipment equipped with such accessories did not cause serious consequences after several similar accidents;
Long-term follow-up investigation shows that these hinges still maintain high reliability and stability even after long-term service in harsh working environment, and no obvious signs of degradation are seen.
To sum up, the research and development achievements of the door hinge of the arc-proof distribution box provide a powerful supporting means for improving the existing power infrastructure, which is worth popularizing and applying in a wider range. In the future, it is necessary to continue to deepen research and explore more feasible schemes to better meet the needs of industry development.
Rec. Prods.
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