FIELD: electrical engineering.
SUBSTANCE: proposed differential-frequency relay designed for adjusting generator frequency to supply mains has frequency meters for input and synchronized signals, synchronized-signal voltage amplitude meter, constant-factor multiplier, two comparators, two fixed components, algebraic adder, inverter, division unit, and constant-factor shaping unit.
EFFECT: enhanced precision.
1 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| FREQUENCY-DIFFERENCE RELAY | 2002 |
|
RU2231157C1 |
| FREQUENCY DIFFERENCE RELAY | 2002 |
|
RU2228559C1 |
| FREQUENCY-DIFFERENCE RELAY | 2002 |
|
RU2225653C1 |
| FREQUENCY-DIFFERENCE RELAY | 2002 |
|
RU2231851C2 |
| FREQUENCY-DIFFERENCE RELAY | 2003 |
|
RU2231849C1 |
| SYNCHRONIZING RELAY | 2003 |
|
RU2233500C1 |
| FREQUENCY DIFFERENCE RELAY | 2002 |
|
RU2216812C1 |
| FREQUENCY-PHASE RELAY | 2003 |
|
RU2231852C1 |
| DIFFERENTIAL-FREQUENCY RELAY | 2002 |
|
RU2222089C1 |
| DIFFERENTIAL-FREQUENCY RELAY | 2002 |
|
RU2222086C1 |
