| 2005 №01 (07) | 2005 №01 (09) |
The Paton Welding Journal, 2005, #1, 31-33 pages
Dynamic characteristics of high-voltage power sources for electron beam welding
O.K. Nazarenko, V.E. Lokshin
E.O. Paton Electric Welding Institute of the NASU. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.Abstract
Transient processes occurring in high-voltage circuits of modern power sources of welding guns are considered. It is shown experimentally that with a pulsed change in the beam current the accelerating voltage oscillations in a power source based on the high-frequency transistorized converter exceed to a great degree the limits of requirements of standard ISO 14744–1:2000. The conclusion is made about prospects of equipping these power sources with control electron tubes when a key mode of operation is used.
Keywords: electron beam welding, high-voltage power sources, high-frequency transistorized converters, control electron tube, dynamic nature of loading, transient processes
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