FIELD: electricity.
SUBSTANCE: phase difference relay contains seven threshold blocks, four AND elements, two pulse counters, four OR elements, a RS trigger, an actuator, a clock-pulse generator, a single-oscillator, three short pulse shapers, two averaging filters, a divider, an inverter, a multiplier to a constant coefficient, two algebraic adders, two rectifiers.
EFFECT: increasing accuracy and noise immunity.
2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| PHASE DIFFERENCE RELAY | 2016 |
|
RU2639891C2 |
| REGULATING RELAY | 2016 |
|
RU2623098C1 |
| PHASE DIFFERENCE RELAY | 2011 |
|
RU2484547C1 |
| FREQUENCY-PHASE RELAY | 2016 |
|
RU2641096C2 |
| PHASE-DIFFERENCE RELAY | 2003 |
|
RU2241274C1 |
| PHASE DIFFERENCE RELAY | 2003 |
|
RU2240621C1 |
| PHASE-DIFFERENCE RELAY | 2003 |
|
RU2237312C1 |
| PHASE DIFFERENCE RELAY | 2003 |
|
RU2240620C1 |
| RATE-OF-PHASE-ERROR RELAY | 2002 |
|
RU2208282C1 |
| PHASE-FREQUENCY RELAY | 2003 |
|
RU2239904C1 |
