Electrical transmission or interconnection systems – Switching systems – Plural switches
Reexamination Certificate
2011-07-19
2011-07-19
Fureman, Jared J (Department: 2836)
Electrical transmission or interconnection systems
Switching systems
Plural switches
Reexamination Certificate
active
07982341
ABSTRACT:
A control portion80for a breaker10causes the breaker10to apply a current of a first apply phase (R phase) at a timing where a residual flux of R phase agrees with a steady magnetic flux. Thereafter, the control portion80determines whether or not the current measured by current measuring portions40R,40S,40T exceeds a threshold value. When the measured current does not exceed the threshold value, the control portion80causes the breaker10to apply currents of the other two phases (S and T phases) at a timing where a voltage of R phase becomes zero. When the measured current exceeds the threshold value, the control portion80causes the breaker10to once shut off the current of R phase and to apply again the current of R phase.
REFERENCES:
patent: 6493203 (2002-12-01), Ito et al.
patent: 7259947 (2007-08-01), Kinoshita et al.
patent: 2004-208394 (2004-07-01), None
patent: 2006-040566 (2006-02-01), None
Kamei Kenji
Kinoshita Sadayuki
Mori Tomohito
Buchanan & Ingersoll & Rooney PC
Fureman Jared J
Mitsubishi Electric Corporation
Parries Dru M
LandOfFree
Transformer operation control apparatus and method for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Transformer operation control apparatus and method for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transformer operation control apparatus and method for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2639002