FIELD: relay protective devices; phase- to-ground fault protection. SUBSTANCE: protective gear has AND gate, final element, phase- sensing circular rectifier, zero-sequence current filter, zero-sequence voltage filter, two flip-flops, rectifier, two monostable multivibrators, two comparators, two OR gates, and four pulse shapers. EFFECT: enhanced precision. 1 cl, 1 dwg _
| Title | Year | Author | Number |
|---|---|---|---|
| RELAY | 2002 |
|
RU2205465C1 |
| DIFFERENTIAL RELAY | 2002 |
|
RU2223569C1 |
| RESISTANCE RELAY | 2002 |
|
RU2224322C1 |
| RELAY | 2002 |
|
RU2216810C1 |
| RESISTANCE RELAY | 2002 |
|
RU2227942C1 |
| DIFFERENTIAL-PHASE RELAY | 2002 |
|
RU2231156C1 |
| DIFFERENTIAL RELAY | 2002 |
|
RU2208258C1 |
| PHASE-FREQUENCY RELAY | 2002 |
|
RU2210132C1 |
| STATIC POWER RELAY | 2002 |
|
RU2216813C1 |
| SINGLE-PHASE GROUND FAULT PROTECTIVE DEVICE | 2002 |
|
RU2213386C1 |
