FIELD: electrical engineering; generator phase and frequency control during its throwing on line.
SUBSTANCE: device has two comparators, two double-threshold comparators, pulse generator, seven AND gates, frequency discriminator, monostable multivibrator, pulse frequency divider, subtraction unit, three nonrecursive filters, two pulse counters, analog-to-digital converter, supply mains signal pulse leading edge shaper, short pulse shaper, and delay unit.
EFFECT: enlarged functional capabilities.
1 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DIFFERENTIAL-PHASE RELAY | 2002 |
|
RU2222087C1 |
| PHASE-DIFFERENCE RELAY | 2002 |
|
RU2220468C1 |
| FREQUENCY RELAY | 2002 |
|
RU2208865C1 |
| FREQUENCY RELAY | 2002 |
|
RU2220472C1 |
| DIFFERENCE-FREQUENCY RELAY | 2002 |
|
RU2208866C1 |
| SYNCHRONIZATION RELAY | 2002 |
|
RU2222068C1 |
| PHASE-DIFFERENCE RELAY | 2003 |
|
RU2237312C1 |
| FREQUENCY CONTROL RELAY | 2002 |
|
RU2231913C2 |
| FREQUENCY DIFFERENCE RELAY | 2002 |
|
RU2228559C1 |
| PHASE-DIFFERENCE RELAY | 2002 |
|
RU2220471C1 |
