Module 3 : Overcurrent Protection
Lecture 14 :
Fuse Protection
Review Questions
1.
Differentiate between abnormal state and faulty state.
2.
What are the advantages and disadvantages of fuse?
3.
Define the following terms:
a) Available fault current.
b) Interrupting rating.
c) Voltage rating.
4.
Explain the physics of arc interruption in a fuse.
5.
Explain how does a current limiting fuse, insert a high series resistance in the fault circuit? What benefits does it
achieve?
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