CONVERTER OF THREE-PHASE ALTERNATING VOLTAGE INTO DIRECT Russian patent published in 2006 - IPC H02M7/155 

FIELD: the invention refers to electric technique.

SUBSTANCE: the invention is designed for using of the loading of all three phases of the secondary windings of a transformer at forming of rectified voltage during non commutative intervals of time at securing the parallel work of the two phases and connected to them of controlled gated elements for example of thyristors. At that the duration of passing of the plate current through elements remains equal 240 electrical loss on degree. The essence of the mode is that the converter of three-phase alternative voltage into direct has a three-phase transformer, whose secondary phase windings are connected into a star and the gated elements connected with the secondary winding through a triple-wound equalizing reactor fulfilled in the shape of three identical windings located on one magnetic conductor and each secondary phase winding of the three-phase transformer is connected with the medium point of the corresponding winding of the equalizing reactor, whose each winding are linked up with its outputs with the electrodes of the same name of the corresponding gated elements, whose other electrodes are connected with the electrodes of the same name of all other controlled gated elements forming one of the output clamps. The converter has an additional group of gates whose plates are connected between themselves and form the second output clamp, a and each of the cathodes is switched to one of the phases of the secondary winding.

EFFECT: using of all three phases of the secondary winding.

2 dwg