The fuse breaks the circuit if a fault in an appliance causes too much current to flow . This protects the wiring and the appliance if something goes wrong. The fuse contains a piece of wire that melts easily. If the current going through the fuse is too great, the wire heats up until it melts and breaks the circuit.
Why do we use fuse in most electric machines?
A fuse provides a safe and cost effective way to protect an electrical device or installation from electrical overloads which could damage components or wiring and potentially cause a fire. Once a fuse is blown, it must be replaced with a fuse of the same specification to ensure the circuit is properly protected.
What is the use of fuse in an electric circuit explain briefly?
The fuse helps to control the maximum current in an electrical circuit . The fuse protects an electrical circuit by melting and breaking the circuit, whenever the current exceeds the pre-determined limit in the circuit. Due to low melting point, the fuse wire melts and then breaks the circuit.
What is fuse why is it used?
The fuse breaks the circuit if a fault in an appliance causes too much current to flow . This protects the wiring and the appliance if something goes wrong. The fuse contains a piece of wire that melts easily. If the current going through the fuse is too great, the wire heats up until it melts and breaks the circuit.
Where are fuses used?
Fuses are widely used for protection of electric motor circuits ; for small overloads, the motor protection circuit will open the controlling contactor automatically, and the fuse will only operate for short circuits or extreme overload.
Which wire is used in fuse?
Which material is generally used in a fuse wire? Answer: An alloy of lead and tin as it has a low melting point and a very high resistance.
How many types of electrical fuses are there?
Fuses can be divided into two major categories, AC fuses, and DC fuses.
What is fuse short answer?
Fuse is a piece of wire of a material with a very low melting point . When a high current flows through the circuit due to overloading or short circuit, the wires gets heated and melts. As a result, the circuit is broken and current stops flowing.
What are the 3 types of fuses?
- DC Fuses.
- AC Fuses.
- Cartridge Fuses.
- D – Type Cartridge Fuse.
- HRC (High Rupturing Capacity) Fuse or Link Type Cartridge Fuse.
- High Voltage Fuses.
- Automotive, Blade Type & Bolted Type Fuses.
- SMD Fuses (Surface Mount Fuse), Chip , Radial, and Lead Fuses.
What is the role of fuse wire in our daily life?
A fuse(s) is needed in any electrical system (AC or DC). These protection devices react to the amount of heat being produced by electricity passing through wires and/or components . They are used so as to protect wires and components from the extreme heat produced should there be an electrical overload or short circuit.
Why do fuses have voltage ratings?
The voltage rating of a fuse is a function of its capability to open a circuit under an overcurrent condition . Specifically, the voltage rating determines the ability of the fuse to suppress the internal arcing that occurs after a fuse link melts and an arc is produced.
Why are fuses connected in series?
Fuses are always connected in series with the circuit components to be protected from the overcurrent in the circuit , so that when the fuse blows, or opens, it will open the entire circuit and stop current through the circuit components. ... This function of the fuse ceases if it is placed in the neutral wire.
What is fuse and its advantages?
Fuse is cheapest type of protection in an electrical circuit . Fuse needs zero maintenance . Operation of fuse is simple and no complexity is involved. Fuse has the ability to interrupt enormous short circuit current without producing noise, flame, gas or smoke.
How many types of fuses are there?
The fuse is the current interrupting devices which break or open the circuit by fusing the element and thus remove the faulty device from the main supply circuit. The fuses are mainly classified into two types , depends on the input supply voltages they are the AC fuses and the DC fuses.
Which wire is mostly preferable for fuse wire?
Copper wire is used extensively as fuse-wire. It is generally used in distribution fuse boards and in main switch boards.
What are the characteristics of a good fuse wire?
High melting point, low specific resistance .
