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

Net angle of twist at the free end - steel shaft, Net angle of twist at the...

Net angle of twist at the free end - steel shaft:  The stepped steel shaft illustrated in Figure is subjected to a torque (T) at the free end and a torque (2T) in the opposite

Fermenter dimensions and mechanical design, Once the total volume of an ind...

Once the total volume of an individual vessel has been established the detailed dimensions or mechanical design can be performed. Much of this is based on "Rules of Thumb"  built f

Show prevailing wind conditions for plant layout, Q. Show Prevailing wind c...

Q. Show Prevailing wind conditions for plant layout? Prevailing wind conditions influence the design considerations for the location of the flare or vent stack. It is vital tha

Submerged arc welding, SUBMERGED ARC WELDING The optimum performance of w...

SUBMERGED ARC WELDING The optimum performance of welded vessels and structures in service have led to the full exploitation of automatic welding processes. This arc welding is on

Ease of operation-factors in clutch design , Ease of Operation : For highe...

Ease of Operation : For higher power transmissions, the operation of disengaging the clutch must not be tiresome to the driver.

Solve equations using regula-falsi method, a) Determine a root of the equat...

a) Determine a root of the equation x-cosx =0 using Bisection method correct to three decimal places. b) Determine smallest possible root of the equations x-e -x =0 using Regul

Evaluate power transmitted by belt, Evaluate power transmitted by belt.  ...

Evaluate power transmitted by belt.  Sol: Let T 1  = Tension in tight side of the belt T 2 = Tension in slack side of the belt V = Velocity of belt in m/sec.  = Π

Frames, what is a deficient frame?

what is a deficient frame?

Hydrostatic law for incompressible and compressible fluid, Illustrate Newto...

Illustrate Newton's law of viscosity. Explain the importance of viscosity in fluid motion. Describe the effects of temperature on viscosity of water and that of air? Discuss hyd

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