Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With rotor
Reexamination Certificate
2008-07-29
2008-07-29
Patel, Paresh (Department: 2829)
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
With rotor
C324S701000
Reexamination Certificate
active
07405553
ABSTRACT:
To ensure high level of reliability, it is desirable to test an electrical device, such as an uninterruptible power supply (UPS) system, periodically with minimum possible energy usage and without compromising reliability. A regenerative load (RGL) unit is described which makes it possible to conduct a load test of a UPS system and supply a portion of the energy used for the load test from a generator in the RGL unit. An induction motor driven by an adjustable speed drive and coupled to an induction generator is used in the RGL unit to supply the load to the electrical device and supply a portion of the power used by the electrical device under test.
REFERENCES:
patent: 4001666 (1977-01-01), Grenfell
patent: 4357574 (1982-11-01), Takamisawa et al.
patent: 4849651 (1989-07-01), Estes, Jr.
patent: 4860185 (1989-08-01), Brewer et al.
patent: 5077512 (1991-12-01), Weber
patent: 5172009 (1992-12-01), Mohan
patent: 5864101 (1999-01-01), Nishizawa et al.
patent: 6236226 (2001-05-01), Hagiwara
patent: 6459175 (2002-10-01), Potega
patent: 1659415 (2006-05-01), None
patent: 11258287 (1999-09-01), None
patent: 2000201440 (2000-07-01), None
patent: 2001061237 (2001-03-01), None
patent: 2006149190 (2006-06-01), None
AT&T Corp.
Patel Paresh
Priest & Goldstein PLLC
LandOfFree
Load testing of uninterrupted power supply systems using... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Load testing of uninterrupted power supply systems using..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Load testing of uninterrupted power supply systems using... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2788577