FIELD: electricity.
SUBSTANCE: application: in electrical engineering for relay protection of power transformers. Thermostable resistor with small resistance is installed at device input, further there are inertia element and low-voltage stabilitrons from which ultra-compact step-up transformer is fed, and then there is resonance circuit, wherein multiturn winding of overcurrent relay is used as inductor.
EFFECT: device simplification and expanding of its application field.
3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| TRANSFORMER DIFFERENTIAL CUT-OFF | 2009 |
|
RU2402851C1 |
| ELECTRONIC PROTECTIVE RELAY | 2008 |
|
RU2362248C1 |
| PROTECTION RELAY WITH POWER TRANSFORMER LATCHING CURRENT OFFSET | 2007 |
|
RU2350002C1 |
| ELECTROMAGNETIC MEASURING CURRENT RELAY WITH COMPENSATOR | 2008 |
|
RU2362247C1 |
| DEVICE FOR DIFFERENTIAL PROTECTION OF TRANSFORMER | 2008 |
|
RU2356152C1 |
| ELECTRONIC DEVICE FOR FAST BLOCKING OF TRANSFORMER DIFFERENTIAL PROTECTION | 2008 |
|
RU2368990C1 |
| APPARATUS FOR DIFFERENTIAL PROTECTION OF TRANSFORMER | 0 |
|
SU1356110A1 |
| DEVICE FOR CURRENT PROTECTION WITH ADJUSTING FROM MAGNETIZING CURRENT OVERSHOT | 0 |
|
SU744821A1 |
| POWER DIRECTION RELAY | 0 |
|
SU964841A1 |
| DEVICE FOR DIFFERENTIAL PROTECTION OF TRANSFORMER | 0 |
|
SU936164A1 |
