Explain electrical contact materials, Electrical Engineering

Assignment Help:

Explain electrical contact materials.

Electrical contact materials: some elements, in their relatively pure forms as copper, nickel, molybdenum, palladium, silver, tungsten and platinum are acceptable make and break contact materials. All alloys and heterogeneous mixtures that are, generally, combinations of the elements mentioned above are also utilized for electrical contacts. Silver is a significant contact material. Copper (Cu0) added to silver reduces the cost of the contact material, while a combination of tungsten and silver results in a contact material comprising the advantages of the particular metals. A silver tungsten contact material will have electrical conductivity, high thermal and low contact resistance and high resistance to oxidation because of the presence of silver and a high melting point and a high resistance to electrical erosion because of the presence of tungsten.


Related Discussions:- Explain electrical contact materials

Define johnson counters to make simpler combinational logic, Define Johnson...

Define Johnson Counters to Make Simpler Combinational Logic? The ring counter technique able to be efficiently utilized to implement synchronous sequential circuits. A main pr

Find the minimum rate of sampling, Find the minimum rate of sampling that m...

Find the minimum rate of sampling that must be used to convert the message into digital form: (a) If an audio message has a spectral extent of 3 kHz. (b) If a television sign

Delay line in CRO, why we use delay line in CRO what happens if we not use ...

why we use delay line in CRO what happens if we not use it?

Fixed voltage regulators, Q. Fixed Voltage Regulators ? Positive voltag...

Q. Fixed Voltage Regulators ? Positive voltage regulator series with seven voltage options - IC 7800 Series  The 7800 series consists of three - terminal positive volta

Explain relative data addressing mode, Explain relative data addressing mod...

Explain relative data addressing mode (with examples) available in microprocessors. Relative Mode: Operand supplied is an offset, not the actual address. Added the con

Step up chopper - power supplies , Step Up Chopper In this  chopper av...

Step Up Chopper In this  chopper average output  voltage  is greater than  input  voltage. The circuit  different  mode  of operation and  current  waveforms are show. When

Function generator, explain the waorking principle of function generator

explain the waorking principle of function generator

Find the bandwidth of the modulated signal, The signal m(t), whose frequenc...

The signal m(t), whose frequency spectrum M(f ) is to be transmitted from one station to another. Let the signal be nor- malized, i.e., -1 ≤ m(t) ≤ 1. Find the bandwidth of the mod

Marginal tax rate, Stratos Corporation is a privately held tablet semicondu...

Stratos Corporation is a privately held tablet semiconductor technology firm with bright growth prospects.The past 5 years have seen the firm evolve from a pure startup to a profit

Write a note on superconductors, Write a note on superconductors. Super...

Write a note on superconductors. Superconductors- The resistivity of most metals rises with increase in temperature and vice-versa. Some metals and chemical compounds are there

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