• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar

How Engineering Works

  • Home
  • About Us
  • Electrical Engineering
    • Interview Questions
  • Privacy Policy
  • Disclaimer
  • Contact Us
  • Blog

What are the differences between fuse and circuit breaker?

September 27, 2017 by

DWQA Questions › Category: Switchgear and Protection › What are the differences between fuse and circuit breaker?
0 Vote Up Vote Down
admin Staff asked 5 years ago
3 Answers
0 Vote Up Vote Down
admin Staff answered 5 years ago

Fuse
1. It is generally used in low voltage application.
2. It can detect and interrupt the fault.
3. Its work on the principle of electrical and thermal properties.
4. Operating time of fuse is very small.
5. Fuse element needs to replace after every operation.
6. Fuse cannot be used as an ON/OFF switch.

Circuit Breaker
1. Circuit breaker is suitable for high voltage application.
2. Circuit breaker cannot detect fault. It perform only interruptions and deductions of fault is made by relay.
3. Circuit breaker work on the electromagnetical principle.
4. Operating time of circuit breaker is higher as compared to fuse.
5. Circuit breaker can be used again and again after operation.
6. Circuit breaker can be used as an ON/OFF switch.

0 Vote Up Vote Down
boby answered 5 years ago

  The basic difference is that, if a fuse “Blows out” it literally blows out the Fuse wire, so you need to replace that with another fuse wire to complete the circuit again. Circuit Breakers (CBs) will disconnect the circuit during overloaded or fault situation and will re-connect the circuit once the fault has been cleared, it also has a manual turn ON switch so that you can connect it when ever required without any replacement of parts in the CB.

0 Vote Up Vote Down
ML answered 5 years ago

Fuse : Offers you over-current protection.
Circuit Breaker : Offers you over-current, overload or short-circuit protection. It basically works after the protective relays sense a fault in your circuit.

Primary Sidebar

Related Questions

  • Why is the capacitance effect not present in short transmission lines? asked by admin
  • What is Buchholz relay? Which equipment is protected by it? asked by admin
  • What do you mean by Switchgear? asked by admin
  • What is vacuum circuit breaker and where it is used? asked by admin

INTERVIEW QUESTIONS

MCQ or Objective





Recommended Post

MCQ on Engineering Materials – 4

MCQ on Basic Electrical – 4

MCQs on Power Generation

MCQ on Electrical Unit – 1

MCQ on Alternator – 1

Categories

  • Electrical Articles (19)
  • Electrical MCQ (75)
  • Electrical Questions (11)
  • Interviews Questions (7)
  • IQ Test (1)
  • Uncategorized (12)

Join Our Whatsapp Group


About Us | Privacy Policy | Disclaimer


Copyright@2017-2022