FIELD: electric engineering.
SUBSTANCE: in the transformer machine for alternating current electric rail roads, which contains three-phased traction transformer, having three-rod magnetic conductor, primary winding connected to power network, and secondary winding, phase windings of which are connected to each other, two volt-adding windings, each one of which is positioned on the middle rod of three-rod magnetic conductor and connected by one end to appropriate section of contact network, and by other end - to one of windings of phases of secondary winding, which is positioned on extreme rod of three-rod magnetic conductor. In accordance to the invention, each volt-adding winding is fitted with a voltage regulation device.
EFFECT: creation of transformer machine with voltage management for electric railroads, characterized by high operational reliability due to flexible adjustment of numbers of coils of enabled volt-adding windings.
1 dwg
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SU1335491A1 |
