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Electrical drive
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SU1767687A1
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Alternating current electric drive
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Ac electric motor drive
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RU1775834C
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Ac drive
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Three-phase voltage/constant voltage converter
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Converter of multiphase alternating-to-direct voltage
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RU1797170C
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Device for power supply of electric arc furnaces
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Device for power supply of electric arc furnaces
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Device for frequency control of induction motor
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Method of regulation of rotational speed of three-phase asynchronous motor
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Device for frequency control of induction motor
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Ac electric drive
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Direct frequency converter
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Device for checking the windings
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Frequency converter with direct coupling
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SU896734A1
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Electric drive
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SU817920A1
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Single-phase/three-phase frequency converter
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