FIELD: transformers for high-power converter substations. SUBSTANCE: three-phase transformer unit has autotransformer with delta-connected winding and phase-shifting winding, as well as transformer with primary and secondary windings. Transformer is provided with phase-shifting winding connected to primary winding so that coil of one of phase-shifting winding phases is series-connected to coil of other phase of primary winding. Coil of one of phases of autotransformer phase-shifting winding is connected to at least one of two other phases of delta-connected autotransformer winding. Autotransformer may be provided with additional equalizing winding connected to phase-shifting winding so that coil of one of phases of phase-shifting winding is connected in series with coil of other phase of equalizing winding. EFFECT: enlarged functional capabilities due to universal properties enabling n-fold increase in substation phases connected to rectifier. 2 cl, 5 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| THREE-PHASE TRANSFORMER SET | 2000 |
|
RU2192064C2 |
| MULTIPHASE POWER CONVERTER SUBSTATION | 2002 |
|
RU2225064C1 |
| TRANSFORMER UNIT | 2001 |
|
RU2209479C2 |
| THREE-PHASE TRANSFORMER UNIT | 2005 |
|
RU2295794C2 |
| MULTIPHASE TRANSFORMER SET WITH VOLTAGE CONTROL | 0 |
|
SU970494A1 |
| PARAMETRIC CURRENT SUPPLY | 1999 |
|
RU2161363C1 |
| COMPENSATED AC-TO-DC VOLTAGE CONVERTER | 0 |
|
SU1020942A1 |
| 0 |
|
SU1781794A1 | |
| THREE-PHASE TRANSFORMER UNIT | 2005 |
|
RU2299486C1 |
| THREE-PHASE TRANSFORMER UNIT WITH VOLTAGE REGULATION | 2006 |
|
RU2326462C2 |
