“SE SEUS PROJETOS FOREM PARA UM ANO,SEMEIE O GRÂO.SE FOREM PARA DEZ ANOS,PLANTE UMA ÁRVORE.SE FOREM PARA CEM ANOS,EDUQUE O POVO.”

“Sixty years ago I knew everything; now I know nothing; education is a progressive discovery of our own ignorance. Will Durant”

OBRIGADO DEUS PELA VIDA,PROTEGENOS E GUARDANOS DE TODO MAL


AUTOR DO BLOG ENG. ARMANDO CAVERO MIRANDA SAO PAULO BRASIL

sexta-feira, 14 de maio de 2010

Verification of Rogowski Current Transducer’s



















Verification of Rogowski Current Transducer’s
Ability to Measure Fast Switching Transients
C. R. Hewson, W. F. Ray and R. M. Davis
Power Electronic Measurements Ltd.,
164 Lower Regent Street, Beeston, Nottingham, NG9 2DJ, UK

Abstract - Rogowski current transducers combine a high
bandwidth, an easy to use thin flexible coil, and low insertion
impedance making them an ideal device for measuring pulsed
currents in power electronic applications. Practical verification of
a Rogowski transducer’s ability to measure current transients due
to the fastest MOSFET and IGBT switching requires a calibrated
test facility capable of generating a pulse with a rise time of the
order of a few 10’s ns. A flexible 8-module system has been built
which gives a 2000A peak current with a rise time of 40ns. The
modular approach enables verification for a range of transducer.








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