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SU1767609A2
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Device for protecting regular feed apparatus
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RU1781804C
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Device for control over parallel current inverter with rectifier-inductive compensator
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RU1786616C
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Monophase-to-three-phase voltage converter
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RU1775820C
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Single-phase-to-three-phase voltage converter
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RU1775779C
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Electrical equipment box framework
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RU1775819C
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Single voltage-to-three-phase voltage converter
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RU1778891C
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Single-phase to three-phase voltage converter
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SU1758711A1
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Static converter
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RU1786610C
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Device for control of cut-off thyristor
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SU1757012A1
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Device for switching of transformers
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SU1767655A1
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Alternating-to-constant voltage transformer
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SU1760613A1
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Ac-to-dc voltage converter
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SU1764140A1
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Decimal voltage-resistance commutator
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RU1778865C
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Continuous power supply unit
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SU1760614A1
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Ac-to-dc voltage converter
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RU1788560C
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Pulse dc converter
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RU1778897C
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Ac -dc voltace converter
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RU1778898C
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Ac -dc voltace converter
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RU1798878C
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Method of control over stabilized d c to a c voltage converter
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SU1749856A1
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Instrument for measuring numbers of turns, checking phasing control and turn-to-turn short-circuits of windings of transformers
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