Product overview

HFCR-11F drop out fuse is a short-circuit protection switch used for distribution lines and primary side of distribution transformers?, It has the characteristics of economy, easy operation, and strong adaptability to outdoor environments. It is widely used in branch lines of 10-35kV distribution lines and the primary side of distribution transformers, for overload and short-circuit protection, and can switch rated load currents.

Technical parameters and performance characteristics

Rated voltage: suitable for power systems ranging from 10-35kV.

Protection function: It has the functions of short circuit protection, overload protection, and isolation circuit.

Working environment: Suitable for power systems with a frequency of 50Hz, capable of working normally at ambient temperatures ranging from -30 ℃ to+40 ℃, with an altitude not exceeding 1000m and a maximum wind speed not exceeding 35m/s.

Structure composition and usage method

The HFCR-11F drop out fuse mainly consists of high-strength insulators, parallel groove connection terminals, upper contacts, fuse tubes, and other components. Its working principle is that during normal operation, the fuse tube is tensioned by the fuse to form a closed position; When the system malfunctions, the fault current causes the fuse to quickly melt, forming an arc that is then extinguished by the arc extinguishing cover, and the fuse tube drops to form a clear breaking position.

Maintenance and upkeep suggestions

In order to ensure the normal operation and prolong the service life of FCR-11 drop out fuse, it is recommended to regularly check whether all components of the fuse are intact, especially the condition of the insulator and fuse tube. In addition, it is necessary to ensure that the working environment of the fuse meets the specified requirements and avoid using it in harsh environments.

Technical Parameter