Mention the desirable properties of fuse materials, Electrical Engineering

Assignment Help:

Mention the desirable properties of fuse materials.

A fuse material must possess the properties as follows:

Low resistivity - It means, thin wires can be used that will offer less metal vapour after melting of the wire. Less metal vapour in the arc provides lower conductivity and therefore makes quenching of arc easier.

Low conductivity of the metal vapours itself.

Low melting point- It means that the temperature of the fuse material for normal currents stays on a low value. In earlier lead was used as fuse material because of its low melting point although thick wires of lead are required because of higher resistivity. For rewireable fuses alloys of lead and tin or tinned copper wires are generally used. In caridge fuses silver and silver alloys are utilized of lower ratings. Copper alloys are utilized in fuses of higher ratings.


Related Discussions:- Mention the desirable properties of fuse materials

Compute the maximum internal torque, For the motor speci?ed in figure,  com...

For the motor speci?ed in figure,  compute the following: (a) The load component I' 2 of the stator current, the internal torque T, and the internal power P m for a slip of 0.

Circuit analysis, what is quality factor in term circuit analysis

what is quality factor in term circuit analysis

Analogue and digital, 1. Pattern recognition A synchronous sequential machi...

1. Pattern recognition A synchronous sequential machine is to generate 1 on output z after the next clock pulse whenever the bit sequence on input x has exactly two 0’s in the last

555 timer ic, i wanted the exact names of the components of the internal ci...

i wanted the exact names of the components of the internal circuit of a 555 timer ic

D.C. generator, I have made a wind turbine with vertical blades. I want to ...

I have made a wind turbine with vertical blades. I want to rotate magnets on the rotor with the coils being stationary.How do I wind the coils and must the magnets be N/S opposite

Define the spectral resolution of satellite, Q. Define the spectral resolut...

Q. Define the spectral resolution of satellite? Spectral resolution : The sensitivity to different features of earth is the most important aspects considered in the spectral

Three phase steam turbine generator, A 3 phase 400 volt(line to line) wye c...

A 3 phase 400 volt(line to line) wye connected synchronous motor has Xs= 1 ohm per phase and a negligible armature resistance. The field current is so adjusted that the internal(in

Explain industry standard architecture bus, Explain the term Industry Stand...

Explain the term Industry Standard Architecture Bus. The Industry Standard Architecture, bus has been approximately since the very start of the IBM-compatible personal computer

Use of computers in power systems, Q. Use of Computers in Power Systems? ...

Q. Use of Computers in Power Systems? The control and stability of any electric power system is indeed extremely important, in particular when a system is expected to maintain

Design a matching network of balanced stubs, A certain cellular telephone a...

A certain cellular telephone antenna has an input impedance at f=1.0 GHz modeled by a shunt R-C combination, with R=200Ω and C=2.0pF. Because of manufacturing restrictions, you can

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd