THREE-WIRE DEVICE TO CONTROL THREE-PHASE POINT ELECTRIC DRIVE WITH LOCAL REVERSING ARRANGEMENT Russian patent published in 1994 - IPC

Abstract RU 2025354 C1

FIELD: railway transport. SUBSTANCE: drive control circuit has transformer, differentiating and integrating circuits consisting of capacitors and resistors and also diodes and check mode fixing relay. EFFECT: enhanced reliability of operation. 4 dwg

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RU 2 025 354 C1

Authors

Kruchinin V.P.

Baranov I.A.

Dates

1994-12-30—Published

1990-02-08—Filed