Pulse resistor (brake resistor) for a frequency converter in...

Details Pulse resistor (brake resistor) for a frequency converter in... Pulse resistor (brake resistor) for a frequency converter in...

2011-04-12

2011-04-12

Han, Jessica (Department: 2838)

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

C363S120000, C363S132000

Reexamination Certificate

active

07924585

ABSTRACT:
The invention relates to a pulse resistor for a frequency converter in the higher voltage and capacity range. The inventive pulse resistor is characterized by comprising at least two bipolar subsystems (24) and a resistor element (14), said subsystems (24) and said resistor element (14) being connected in series. The inventive pulse resistor is devoid of the drawbacks of known pulse resistors, it can be finely controlled by a brake current (iB) and can be adapted to any medium voltage by simple means.

REFERENCES:
patent: 5034669 (1991-07-01), Sako et al.
patent: 5874818 (1999-02-01), Schuurman
patent: 5936855 (1999-08-01), Salmon
patent: 6301137 (2001-10-01), Li
patent: 7075267 (2006-07-01), Cheng
patent: 101 03 031 (2002-07-01), None
patent: 62 277081 (1987-12-01), None

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