FIELD: electrical engineering. SUBSTANCE: differential relay designed for use in short-circuit protective gear incorporates noise protection capability and has series-connected transformer-reactor unit, rectifier unit, lowfrequency filter, three threshold units, reversible counter, final element, monostable multivibrator, clock generator, and AND gate. EFFECT: enhanced precision. 1 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| FREQUENCY RELAY | 2002 |
|
RU2208865C1 |
| PHASE-DIFFERENCE RELAY | 2003 |
|
RU2237312C1 |
| DIFFERENTIAL-PHASE RELAY | 2002 |
|
RU2222087C1 |
| PHASE-DIFFERENTIAL RELAY | 2002 |
|
RU2224323C1 |
| PHASE-DIFFERENCE RELAY | 2002 |
|
RU2220468C1 |
| DIFFERENCE-FREQUENCY RELAY | 2002 |
|
RU2208866C1 |
| DIFFERENTIAL-FREQUENCY RELAY | 2002 |
|
RU2222086C1 |
| FREQUENCY RELAY | 2002 |
|
RU2220472C1 |
| RELAY REGULATOR | 2002 |
|
RU2231912C2 |
| RESISTANCE RELAY | 2002 |
|
RU2220486C1 |
