Table of Contents
What is difference between HBC and HRC fuse?
The fuse is the oldest device used to protect electrical circuits and equipments against overload and short circuits. 3- High Rupturing Capacity (H.R.C) or High Breaking Capacity (H.B.C) Fuses. The Semi-enclosed Fuse: This type is made from two sections, the base and the carrier.
What is a HBC fuse?
An HBC fuse is a fuse designed to withstand a higher current than the fuse rating without rupturing or breaking. A fuse with a nominal rating of 100A, applied to a motor, for instance, should blow (with the fusible link clearing the circuit by becoming an open in the circuit) after the current exceeds 100A.
Where is a HBC fuse used?
In many industrial applications high breaking capacity (HBC) fuses are used to protect electrical installations against overcurrents, especially in the power distribution network. At high rated current, HBC fuses have more parallel fuselinks mounted inside.
What is difference between HRC fuse and normal fuse?
An HRC fuse do not falsely operate when carrying normal currents, which commonly happens in a re-wirable fuse because of oxidation and the reduction of the cross-sectional area. This is avoided in HRC fuses by hermetically sealing the fuse element within the ceramic body.
What are the disadvantages of HRC fuses?
Disadvantages of H.R.C Fuse:
- After each operation, they have to be replaced.
- Heat being produced by the arc may affect the associated switches.
What are the advantages and disadvantages of HRC fuse?
Advantages and Disadvantage of H.R.C. Fuse
- No maintenance except periodic tightening of connections.
- Coordination and discrimination to a high degree.
- Low initial cost compared to circuit breaker.
- Non-deterioration for long periods.
- Simple and easy installation.
- High breaking capacity.
- Extreme reliability.
What is a HRC fuse?
HRC fuse or high rupturing capacity fuse– In that type of fuse, the fuse wire or element can carry short circuit heavy current for a known time period. During this time if the fault gets removed, then it does not blow off. Otherwise, it blows off or melts.
How many types of electrical fuses are there?
Fuses can be divided into two major categories, AC fuses, and DC fuses.
What are the advantages of HRC fuses?
Advantages of HRC Fuse:
- It clears high as well as low fault currents.
- Do not deteriorate with age.
- Having high-speed operation.
- Provides reliable discrimination.
- Require no maintenance.
- Cheaper than other circuit interrupting devices with same rating.
- Permit consistent performance.
How many different HRC fuses are there?
1. What are the types of HRC fuses? There are usually 3 types of fuses that are listed below: Sr.No.
What is the disadvantage of HRC fuse?
Disadvantages of HRC fuses : Heat produced by the arc may affect the associated switches. They have to be replaced after each operation.