FIELD: electrical engineering. SUBSTANCE: relay that can be used to adjust generator frequency to that of supply main has three comparators, pulse generator, six AND gates, frequency discriminator, three short-pulse shapers, monostable multivibrator, pulse frequency divider, and two OR gates. EFFECT: enhanced precision of frequency adjustment. 1 cl, 1 dwg _
| Title | Year | Author | Number |
|---|---|---|---|
| FREQUENCY-CONTROL RELAY | 2002 |
|
RU2213389C1 |
| DIFFERENCE-FREQUENCY RELAY | 2002 |
|
RU2208869C1 |
| PHASE-FREQUENCY RELAY | 2002 |
|
RU2210132C1 |
| FREQUENCY DIFFERENCE RELAY | 2002 |
|
RU2210131C1 |
| RESISTANCE RELAY | 2002 |
|
RU2224322C1 |
| DIFFERENTIAL-FREQUENCY RELAY | 2002 |
|
RU2222089C1 |
| RESISTANCE RELAY | 2002 |
|
RU2227942C1 |
| RATE-OF-PHASE-ERROR RELAY | 2002 |
|
RU2208282C1 |
| DIFFERENCE-FREQUENCY RELAY | 2002 |
|
RU2208868C1 |
| PHASE MISMATCH SPEED RELAY | 2002 |
|
RU2222085C1 |
