High Voltage Current Limiting Fuse

Short Description:

High-voltage current-limiting fuse is one of the main protection components of electrical equipment, and is widely used in 35KV substation equipment. When the power system fails or encounters bad weather, the generated fault current increases, and the high-voltage current-limiting fuse plays an important protective role as a protector for power equipment.

The improved fuse cover adopts high-strength aluminum alloy material, and the waterproof adopts imported sealing ring. Using a quick and convenient spring-pressed hair, the end is pressurized, making the diversion and waterproof performance better than the old fuse.

Product Detail

Product Tags

Product Features and Scope of Use

1. The fuse is reasonably designed and easy to operate. It does not require dismantling any connecting parts. One person can open the end cap to complete the replacement of the fuse tube.
2. The end is made of high-strength aluminum alloy material, which will not rust even if it runs outdoors for a long time, and has a long service life.
3. The 35KV high-voltage fuse in the substation can be blown, reducing the risk of replacing the fuse tube.
4. Suitable for short circuit and overload protection of transmission lines and power transformers.
5. It is suitable for the altitude below 1000 meters, the ambient temperature is not higher than 40℃, not lower than -40℃.

Product Structure

The fuse consists of a melting tube, a porcelain sleeve, a fastening flange, a rod-shaped cylindrical insulator and a terminal cap. The end caps and the melt tube at both ends are fixed in the porcelain sleeve by press fitting, and then the porcelain sleeve is fixed on the rod-shaped post insulator with the fastening flange. The melt tube adopts the raw material containing high silicon oxide as the arc extinguishing medium, and uses the small diameter metal wire as the fuse. When an overload current or a short-circuit current passes through the fuse tube, the fuse is blown immediately, and the arc appears in several parallel narrow slits. The metal vapor in the arc seeps into the sand and is strongly dissociated, which quickly extinguishes the arc. Therefore, this fuse has good performance and large breaking capacity.

Installation Precautions

1. The fuse can be installed horizontally or vertically.
2. When the data of the fuse tube does not match the working voltage and rated current of the line, it shall not be connected to the line for use.
3. After the melt hose is blown, the user can remove the wiring cap and replace the melt hose with the same specifications and performance requirements.

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