HI SIR PLEASE TELL THE DIFFERENCE OF WELDING TRANSFORMER AND WELDING RECTIFI

HI
SIR
PLEASE TELL THE DIFFERENCE OF WELDING TRANSFORMER AND
WELDING RECTIFIER AND WELDING INVERT ER AND WHICH PLACE IS
USED WHICH TYPE

Question Posted / raja

2 Answers
7030 Views
Alstom, SPML, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

HI SIR PLEASE TELL THE DIFFERENCE OF WELDING TRANSFORMER AND WELDING RECTIFIER AND WELDING INVER..

Answer / angshuman gogoi

Welding transformers are industry standards for welding.
they r step down transformers. they take 220,440 v & give
40, 50 volts. basically they are tap type, movable core &
movable coil types.
welding rectifiers convert ac current to dc current by
using bridge rectifiers.
welding inverters are modern technologies.welding
generators r bulky because the volume of the iron core used
is dependent upon the input frequency of current ( 50 HZ).
in inverters the input frequency of current is increased to
several thousands of Hz, as a result a core size is
significantly reduced. moreover using a single inverter
almost all types of weldings can be performed which is not
possible in case of welding transformenrs.

Is This Answer Correct ?

7 Yes

1 No

HI SIR PLEASE TELL THE DIFFERENCE OF WELDING TRANSFORMER AND WELDING RECTIFIER AND WELDING INVER..

Answer / angshuman gogoi

in the above answer, i wrongly wrote welding generator
which should be actually welding transformers.

Is This Answer Correct ?

6 Yes

0 No

Post New Answer

More Mechanical Engineering Interview Questions

which type feect in generator and turbine in reverse power protection