Abstract
The paper discusses the possibility of using Vitrovac ® and Vitroperm ® magnetic cores in circuits generating the current impulse tripping thyristors in current transforming units. The magnetic cores used in present-day technology are usually made with a ferrite of high impulse permeability and low-loss generating tripping current impulses of 0.5–1.0 A/μs, which ensure constant thyristor switching times, independent of the parameter values. This study has shown that steeper steering impulses of about 5–6 A/μs can be obtained using Vitrovac 6030F® cores with higher impulse permeabilities μ P = 60000–100000. The use of such magnetic cores in dc transformers also reduces the energy losses in thyristor steering circuits to be used in HDVC transforming stations. It may be possible to simplify the steering system, especially compared with systems exploiting opto-isolation.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
