what is HRC fuse?
An HRC fuse is a type of cartridge fuse, in which the fuse element is enclosed within a transparent capsule, usually made up of steatite–a ceramic material having good mechanical strength.

1 Answer

Answer :

HRC (High Rupturing Capacity) fuse

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•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.

•At fault load condition the fuse conductor is at above its 


melting point due to high current and get breaks down.

Advantages:-

•High speed response

•Reliable

•No maintenance

•Cheaper

Disadvantages:-

•We have to replace it manually after each operation.

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Related Questions

Description : ln HRC fuse the time between cut-off and final current zero is called

Answer : ln HRC fuse the time between cut-off and final current zero is called the arcing time

Answer : H.R.C. fuse, as compared to a rewirable fuse, has no ageing effect, high speed of operation, high rupturing capacity.

Description : What is the advantage of HRC fuses when compared with rewireable fuses?

Answer : Ans.HRC fuses have high rupturing capacity, high speed of operation and no aging effect.

Description : State any two advantages of MCB over Fuse. State the standard specifications of MCB available in the market.  

Answer : Following advantages of MCB over Fuse: 1. No need of replacement of fuse wire. 2. Manually restore of supply is simple. 3. Fault understanding by visual inspection 4. More safe than fuse The standard specifications of ... 6A, 10A,16A,20A, 25A, 30A, 32A, 40A, 50A, 60A and 63A 6. 250V and 450 v

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