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Fuse emergency auxiliary contact

A technology of auxiliary contacts and fuses, applied in emergency protection devices, electrical components, circuits, etc., can solve the problems of increased operation risk, psychological tension of staff, improper installation or operation, etc., to reduce night work time and work. Strength, simplification of steps to deal with faulty fuses, effect of reducing work time and work intensity

Active Publication Date: 2010-11-17
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to improper installation or operation, product quality, environmental factors, etc., the contacts often generate high temperature and affect the normal operation of the fuse.
In particular, the exchange of fuses accounts for a large proportion of nighttime emergency repair work. However, due to the lack of lighting at night, the operation is difficult, the repair process of faulty fuses is cumbersome, and the operation steps of replacing fuses are cumbersome. A series of problems such as complex, heavy workload, single emergency repair method, lack of effective treatment methods, etc., often cause staff psychological stress, high mental pressure, increase the risk of operation, and the reliability of power supply for users cannot be guaranteed

Method used

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Embodiment Construction

[0011] The present invention will be further described in detail through specific embodiments below.

[0012] see figure 1 , the figure shows a fuse emergency auxiliary contact of the present invention, including two contact pieces 1 vertically fixed on both sides of the base 2, the cross section of the contact piece 1 along the vertical direction is in the shape of "几", " The part in the shape of a few" protrudes outward, and the bottom of the contact piece 1 is fixed on both sides of the base 2 by nuts 4. The tops of the two contact pieces 1 are rectangular long pieces extending outward and bent at a certain angle. In the center of the base 2 there is a connecting hole 3 vertically penetrating through the melt carrier, and in the middle of the side end surface of the bottom of the base 2 there is a screw hole 5 .

[0013] During actual assembly, the base 2 and the upper cap end of the melt-carrying part can be well matched with the bolt through the screw hole 5, so that the...

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Abstract

The invention discloses a fuse emergency auxiliary contact, which simplifies steps of processing a faulty fuse wire, greatly reduces the night work time and work intensity of a worker, improves the working safety to the greatest degree, greatly reduces the potential safety hazard during work, improves the speed of recovering the power supply to a great degree, and saves precious time for further repairing and analyzing accident causes. The fuse emergency auxiliary contact is realized by the following technical scheme: the fuse emergency auxiliary contact comprises two contact blades which are vertically fixed on two sides of a base respectively, and the sections of the contact blades are in an inverted U shape.

Description

technical field [0001] The invention relates to an auxiliary contact, in particular to an emergency auxiliary contact of a fuse. technical background [0002] PRW10 series dropout fuse is the most commonly used short-circuit protection switch for branch lines of 10kV distribution lines and distribution transformers. It is economical, easy to operate, and adaptable to outdoor environments. It is widely used in 10kV distribution lines and The primary side of the distribution transformer is used for protection and equipment switching and switching operations. As an over-current protector, the drop-out fuse can break the circuit in time when there is an overload and short-circuit current, and play a role in protecting equipment and lines. However, due to improper installation or operation, product quality, environmental factors and other reasons, the contacts often generate high temperature and affect the normal operation of the fuse. In particular, the exchange of fuses accou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H85/143
Inventor 金鸣庆
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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