FIELD: electrical engineering.
SUBSTANCE: invention can be used as synchronization ensuring automation of process of synchronous generator switching on. Synchronization relay has two inverting amplifiers, two formers of rectangular pulses, former of short-pulse sequence, phase detector, integrating operational amplifier, comparator, low-pass filter, single-shot multivibrator, clock pulse generator, AND gate, two delay elements, two pulse counters, storage register, multiplier by constant coefficient.
EFFECT: enhanced functional precision of relay.
2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| SYNCHRONIZING RELAY | 2003 |
|
RU2233501C1 |
| SYNCHRONIZING RELAY | 2003 |
|
RU2248638C2 |
| FREQUENCY-DIFFERENCE RELAY | 2003 |
|
RU2231849C1 |
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|
RU2233500C1 |
| DIGITAL PHASE METER | 0 |
|
SU938197A1 |
| DIGITAL PHASE METER | 0 |
|
SU1092430A1 |
| PHASE-FREQUENCY RELAY | 2002 |
|
RU2213387C1 |
| METERING DEVICE FOR BALANCING MACHINE | 1992 |
|
RU2054644C1 |
| RATE-OF-PHASE-ERROR RELAY | 2002 |
|
RU2208282C1 |
| PHASE MISMATCH SPEED RELAY | 2002 |
|
RU2222085C1 |
Authors
Dates
2004-06-27—Published
2003-01-21—Filed