Liebert NXL UPS Witness Test: Power Fault Tripping & Transfer

In the spring of 2009, Emerson Network Power invited groups of consulting-specifying engineers from around the country to the Liebert Adaptive Power Witness Test Center in Delaware, Ohio for an introductory demonstration of the new Liebert NXL 750 kVA UPS. Under the direction of the participating engineers, Emerson Network Power technicians ran a variety of tests on the Liebert NXL single-module units and units configured into a large multi-module system. In this test, a technician will trip the output of one module while in redundant operation.

EMC filtering of three-phase PWM converters

Publisher:
ETH
Citation:
Heldwein, Marcelo Lobo. EMC filtering of three-phase PWM converters. ETH (2008). doi:10.3929/ethz-a-005635188.
Title
EMC filtering of three-phase PWM converters
Author(s)
Heldwein, Marcelo Lobo
Publication Place
Zürich
Publisher
ETH
Publication Date
2008
Notes
Diss., Eidgenössische Technische Hochschule ETH Zürich, Nr. 17554, 2008
Language
English
DOI
10.3929/ethz-a-005635188
Subject(s) ELECTRONICS,POWER ELECTRONICS

GLOBO REPORTER-AVENTURA NO PERU

O Peru produz pelo menos 50 variedades diferentes de pimenta. Para os peruanos, o aji não é apenas um tempero, é um produto que faz parte da identidade do país.

VICOR POWER TECHTORIALS

Peter Huber, Senior Field Applications Engineer, describes the sources of current mode and differential noise. He demonstrates the effect of various filters and combinations on noise spectra, shown in the context of EN55022, Class B limits.

POWER CONVERTION EUROPE 2009