FIELD: A C 27.5 kV, 50 Hz railway power supply systems. SUBSTANCE: invention can be used for lateral balancing of traction loads at distribution substations and for power supply of longitudinal two-wire line with single-phase transformers. Given transformer has star connected primary winding. Secondary winding includes two three-phase delta connected windings with single common grounded top and four windings of incomplete star connection. Two of them are connected with one leads to free tops of one three-phase winding. Two other windings are connected to free tops of another three-phase winding so that voltage with phase shift of 90 degrees is formed between other leads of windings of incomplete star connection and ground. EFFECT: minimized copper usage and potential for power supply of intermediate substations over two-wire lines of increased voltage. 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| TRANSFORMER WITH BALANCING EFFECT FOR A C TRACTION SUBSTATION | 2001 |
|
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