FIELD: electricity.
SUBSTANCE: invention refers to electric engineering and can be used in systems with step electric drive based on motors with different phase number, operating in reverse alternating and paired switching mode, live and dead standby, with automatic determination of routine operation mode and single and multiple failures due to hardware implementation of modified Hamming algorithm. Failure detection device includes first-fourth convolution schemes, buses of phase current and voltage limit sensors, additional digits of permanent memory corresponding to reference digits of Hamming code, OR circuit, decoder and indication unit, and new functional links listed in application materials.
EFFECT: extended functional possibilities by enabling automatic failure monitoring and indication during operation of step electric drive.
2 dwg, 2 tbl
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Authors
Dates
2014-07-20—Published
2012-02-06—Filed