English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

A new approach for selection of Silicon-Controlled Rectifier (SCR) forswitching high pulsed currents in the septum magnet power supply is described.In this approach, an attempt is made to select the SCR from its I2t ratinggiven in data sheet. For this, a factor which we have called I2t deratingfactor is defined as the ratio of I2t rating of SCR to the I2t value of currentpulse to be switched. Thus, the SCR to be used in power supply is selected fromits I2t derating factor. Three different experiments were performed using SCRof different manufacturers, to estimate the value of I2t derating factors. Inthese experiments, the SCR was subjected to maximum thermal stress till SCRstarted showing degradation. The forward blocking voltage and the leakagecurrent are the parameters used for characterizing the SCR before and after thestress. The results of these experiments are presented and discussed. Thisapproach will be of great help when pulse rating of SCR, like, transientthermal impedance is not available. Finally, a method is presented which cancontribute to design low-cost and high-reliability septum magnet power supply.

New approach for SCR selection and optimization for Septum magnet power supply with high reliability