Power sources-transformer type power sources, Mechanical Engineering

Assignment Help:

Transformer Type Power Sources

These are the simplest and cheapest type available for arc welding. These are the mainly used for SMAW, AC SAW and gouging applications. These are mostly designed to give a drooping characteristic output. Some manufacturers give OCV selection for transformers by providing tap changing at the primary.The control of current for welding in these type of power sources is done by anyone of the following method.

  •  Moving coil
  •  Moving core shunt
  •  Variable choke at the output
  •  Saturable reactor control at the output


Out of these, the most commonly used type is the moving core shunt. In all these types the power factor and hence the efficiency of power source is not good. When there are many transformer type power sources connected in a shop, the load should be more or less balanced for providing balanced loading. In some cases power factor correction capacitors are integrated along with each transformer. Modern welding shops are not using such power sources.


Related Discussions:- Power sources-transformer type power sources

Determine the axial extension along a load, Determine the axial extension a...

Determine the axial extension along a load: An open coiled helical spring is created having 10 turns of a mean radius of 60 mm. The wire diameter is 10 mm and coils make an an

Vibration, A bump/impact test is a simple technique used to determine a str...

A bump/impact test is a simple technique used to determine a structure’s natural frequency. Sketch a typical time wave response curve of such a test, then label the impact point an

Explain streak line and stream function, Describe the following key terms: ...

Describe the following key terms: (i) Stream Line (ii) Path Line (iii) Streak Line (iv) Stream Function (v) Potential flow function (vi) Flow net

Working of impulse turbine, Working of Impulse turbine: The technique ...

Working of Impulse turbine: The technique in which multiple system of rotors are keyed to a common shaft, in series and the steam pressure of jet velocity is absorbed in stage

Codes and standards for steam generator, Codes and Standards for steam gene...

Codes and Standards for steam generator All equipment purchased, and installation work done, shall be in accordance with the: • Canadian Electrical Code • Alberta Electri

Design and sketch a knuckle joint to transmit a tensile load, Give a genera...

Give a generalized definition of factor of safety. Illustrate the factors responsible for Un-certainities in design necessitating a suitable factor of safety. How is ‘factor of saf

Elasticity, define prandtl''s stress function

define prandtl''s stress function

Determine time required to stop the automobile, Determine time required to ...

Determine time required to stop the automobile: A 20KN automobile is moving at speed of 70Kmph when brakes are fully applied causing all the four wheels to skid. Determine ti

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