(Selection Guide) — How to Select the Right Fuse for Power Systems Protection

selection of right fuse for power system protection

“A fuse is essentially a metal wire or strip that heats up and melts when too much current flows through it, thereby opening the circuit and interrupting the current flow.”

In order to select the right fuse for a given system, it is imperative that the various fuse parameters are thoroughly understood. Hence, this guide will first define each contributing factor and then explain how it is used by engineers and circuit designers to choose the best device for circuit protection.

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The following factors should be considered when selecting a fuse for a given system:

  1. Normal operating current
  2. Operating Voltage
  3. Ambient Temperature
  4. Inrush Currents
  5. Maximum Fault Current
  6. Length of time in which the fuse must open

Maximum allowable I²t

To learn each factor in detail , CLICK HERE!!

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