
Basic functions
Short Circuit Protection: The fuse melts quickly, cutting off short circuit current, protecting transformers and transmission lines.
Overload protection: achieving delayed melting due to the thermal accumulation effect of fuses, which meets the requirements of equipment overload.
Load current switching: Supports manual switching of rated load current (≤100A), easy to operate.
Open high voltage fuse HRW7
Mainly used for short circuit and overload protection in 10 kV power systems, with load current switching function.
Basic functions
Short Circuit Protection: The fuse melts quickly, cutting off short circuit current, protecting transformers and transmission lines.
Overload protection: achieving delayed melting due to the thermal accumulation effect of fuses, which meets the requirements of equipment overload.
Load current switching: Supports manual switching of rated load current (≤100A), easy to operate.
Benefits
Environmental Adaptability: Withstands altitude ≤ 1000m, wind speed ≤ 35m/s and low temperatures down to -30℃.
Easy Maintenance: The fuse tube is designed to be replaceable, reducing operating and maintenance costs.
Typical Application Scenarios
Distribution Transformer Protection: Short circuit and overload protection on the high voltage side of a 10 kV distribution transformer.
Branch nodes of overhead power transmission lines: short circuit insulation and load switching on branches of distribution networks.
Industrial power systems: protection of high-voltage equipment in small substations, industrial and mining plants.
HRW7 fuse, with its high reliability, low maintenance cost and flexible performance, has become the main protection device in 10 kV distribution networks. When selecting, it is necessary to fully evaluate the load power, environmental conditions and switching requirements.