Module 4 : Overcurrent Protection
Lecture 14 : Fuse Protection
14.6 Physics of Fuse Interruption
  The equation brings out the following concepts;
1. The current is proportional to the area under the difference of source and arc voltage. The inductance provides a stored
  energy and the necessary voltage to sustain the current even if the instantaneous arc voltage of the fuse momentarily exceeds the source voltage.
2. Thus, a higher source voltage will adversely affect the interruption of current.
3. Conversely, a high fuse arc voltage, sustained over time will help in greater limitation of the fault current.
4. Lower the inductance, higher the available prospective fault current.
 
   
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