HRC (High Rupturing Capacity) fuse
•HRC
fuse is High Rupturing Capacity fuse.
•At
the time of fault it disconnect the circuit very fast.
•Filling
powder is silica sand.
•No
flashover occurred.
•Heat
at the time of fault convert melt silica into glass.
Construction:-
•Ceramic
body with metal end cap.
•Fuse
element is silver conductor.
•
•Size
is vary according to usage.
•Air
tight.
Working:-
•Under
normal load condition the fuse conductor is at
temperature below its melting point.
temperature below its melting point.
•At
fault load condition the fuse conductor is at above its
melting point due to high current and get breaks down.
melting point due to high current and get breaks down.
Advantages:-
•High
speed response
•Reliable
•No
maintenance
•Cheaper
Disadvantages:-