AUTOR DO BLOG ENG.ARMANDO CAVERO MIRANDA SÃO PAULO BRASIL

GIF 1 GIF 2

“GRAÇAS A DEUS PELA VIDA,PELA MINHA FAMÍLIA,PELO TRABALHO.PELO PÃO DE CADA DIA,POR NOS PROTEGER DO MAL”

“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”

https://picasion.com/
https://picasion.com/

quinta-feira, 3 de abril de 2014

A study of life time management of Power Transformers at E. ON’s Öresundsverket, Malmö Chaitanya Upadhyay

A study of life time management of Power Transformers at
E. ON’s Öresundsverket, Malmö
Chaitanya Upadhyay
June 2011
Supervisors:
Jonas Stenlund, E.ON Värmekraft
Olof Samuelsson, LTH
Examiner:
Gunnar Lindstedt, LTH

Division of Industrial Engineering and Automation at Faculty of Engineering at Lund University,Sweden.
FULL THESIS
https://www.mediafire.com/?c0ryimc8fn8zymc

quarta-feira, 2 de abril de 2014

ALL NEWS DELLS OptiPlex™ desktops and Precision™ workstations REQUIRE PURE SINE WAVE UPS's?

DELL™ OPTIPLEX™ 390 TECHNICAL GUIDEBOOK —FINAL
POWER
NOTE: These form factors utilize a more efficient Active Power Factor Correction (APFC) power supply. Dell recommends only Universal Power
Supplies (UPS) based on Sine Wave output for APFC PSUs, not an approximation of a Sine Wave, Square Wave, or quasi-Square Wave. If you
have questions, please contact the manufacture to confirm the output type.
Power Protection & Back-up

 In the case of a power outage, be prepared with an Uninterruptible Power Supply (UPS) that can provide business continuity to prevent critical data loss. For Dell OptiPlex™ desktops and Precision™ workstations that utilize Active Power Factor Correction (APFC) power supply units, Dell recommends Universal Power Supplies (UPS) based on Sine Wave output, not an approximation of a Sine Wave, Square wave, or quasi-square wave (see UPS technical specifications).
http://www.manualslib.com/manual/471510/Dell-Optiplex-390.html?page=8#manual

domingo, 30 de março de 2014

cours TS / électricité / ch8 circuit RLC branchement à l'oscilloscope

Système didactique Photovoltaïque, Lucas-Nülle (Français)

CONTRIBUTION A L'IDENTIFICATION DE NOUVEAUX INDICATEURS DE DEFAILLANCE DES MODULES DE PUISSANCE A IGBT

THÈSE
PRÉSENTÉE A
L’UNIVERSITÉ BORDEAUX 1
ÉCOLE DOCTORALE DES SCIENCES PHYSIQUES ET DE L’INGÉNIEUR
Par Yassine, BELMEHDI
POUR OBTENIR LE GRADE DE DOCTEUR
SPÉCIALITÉ : Électronique
CONTRIBUTION A L'IDENTIFICATION DE NOUVEAUX
INDICATEURS DE DEFAILLANCE DES MODULES DE PUISSANCE A IGBT
Soutenue le : 04 mai 2011
Après avis de :
M. DORKEL, Jean-Marie Professeur, INSA de Toulouse
M. KHATIR, Zoubir Directeur de Recherche, IFSTTAR Versailles-Satory
Devant la commission d’examen formée de :
M. ALLARD, Bruno Professeur, INSA de Lyon
M. AZZOPARDI, Stéphane Maître de Conférence, ENSEIRB – MATMECA
M. DORKEL, Jean-Marie Professeur, INSA de Toulouse
M. KHATIR, Zoubir Directeur de Recherche, IFSTTAR Versailles-Satory
Mme. LABAT, Nathalie Professeur, Université Bordeaux 1
M. MEDINA, Mathieu Ingénieur de Recherche, SERMA TECHNOLOGIES
M. PITON, Michel Ingénier de Recherche, ALSTOM Tarbes
M. WOIRGARD, Eric Professeur, Université Bordeaux 1
FULL THESIS
http://ori-oai.u-bordeaux1.fr/pdf/2011/BELMEHDI_YASSINE_2011.pdf