FIELD: electrical equipment.
SUBSTANCE: invention relates to the electrical equipment. According to method of protection of power transformer of traction substations of alternating current from internal damages it is provided determination of serviceability by numerical value of unbalance of power of transformer. Power balance takes into account, on the one hand, power consumption of power transformer from power transmission line and, on the other hand, power of electric energy consumers connected to transformer, as well as loss of power in steel and copper. Use of invention allows minimizing damage at internal destructions of power transformer.
EFFECT: improved accuracy of operation of relay protection and reduction of operating time of damaged power transformer from technological violation at AC traction substation with voltage of 25 kV.
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| Title | Year | Author | Number |
|---|---|---|---|
| INTERNAL DAMAGE PROTECTION DEVICE FOR POWER TRANSFORMERS | 2020 |
|
RU2744937C1 |
| AC TRACTION SUBSTATION | 2021 |
|
RU2771615C1 |
| ALTERNATING CURRENT TRACTION SUBSTATION | 2018 |
|
RU2694889C1 |
| ALTERNATE CURRENT TRACTION SUBSTATION FOR SUPPLY OF TRACTION LOADS 25 KV | 2015 |
|
RU2596046C1 |
| ARRANGEMENT FOR PROTECTION OF SINGLE-PHASE TRANSFORMERS OF TRACTION SUBSTATIONS | 0 |
|
SU610226A1 |
| METHOD OF DIFFERENTIAL PROTECTION OF POWER TRANSFORMER FROM TURN FAULTS | 2017 |
|
RU2662725C1 |
| METHOD OF FORMATION AND ADJUSTMENT OF TRANSFORMER AND AUTOTRANSFORMER DIFFERENTIAL CURRENT PROTECTION | 2007 |
|
RU2340062C1 |
| 0 |
|
SU519818A1 | |
| LONGITUDINAL DIFFERENTIAL PROTECTION DEVICE OF DOUBLE-WINDING POWER TRANSFORMERS | 2012 |
|
RU2502168C1 |
| DEVICE FOR DIFFERENTIAL PROTECTION OF TRANSFORMER (AUTOTRANSFORMER) | 0 |
|
SU1001277A1 |
