high voltage HRC fuse for oil-immersed transformer protection

 Application

 The product is used in indoor system of AC 50Hz and rated voltage of 10-15.5kV to protect transformers and other electric facilities from short circuit. An overall protection can be achieved for indoor electric system when it is connected in series together with oil-immersed overloding protection fuse links. The products are tested by National High Voltage Electric Facilities Quality Supervising and Testing Center, and they are in accordance with GB15166.2 and IEC 282-1.

Design features:

S type high voltage HRC current limiting fuses is insert installation,the striker parallels to the fuse element made from pure silver.they are sealed in the fuse tube filled with chemically treated high purity quart sand.the fuse tube is made from heat resistance.high duty ceramic or expoxy glass.when fault circuit happpens .the fuse link melts.the high resistant metal wire paralleling to fuse links metlts immediately at the apperance of the arc.and the striker jumps out to push the chained equipment contact .signaling the melting automatically cutting the circuit.the striker has spring type striker use high pressure caused by the lighting power to push the striker.

S type high voltage HRC current limiting fuses has many merites as high current limiting ability .high breaking capacity .quick and punctual in action .reliable in performance.

DIN HRC "S" type high voltage fuse for transformer protection:

1. According to bussmann DIN "S" type high performance back-up fuse

2. Comply with IEC282-1, DIN, BS

3. This fuse is intended to protect distribution networks and transformer, for indoor as well as outdoor use.

4. Any other specifications can be designed specially.

  Note:under stipulated condition,min.breaking current of fuses could be as high as 2.5-3times than ratred current.