FIELD: electrical engineering.
SUBSTANCE: phase difference relay contains three threshold units, two pulse shapers, two OR elements, two executive elements, a clock-pulse generator, a counter, a balancing filter and a single-trip trigger.
EFFECT: extension of the relay functional capabilities due to output of a signal of inadmissible error of phases of two input signals with the error sign determined.
2 dwg
Title | Year | Author | Number |
---|---|---|---|
FREQUENCY RELAY | 2003 |
|
RU2239905C1 |
PHASE-DIFFERENCE RELAY | 2003 |
|
RU2237312C1 |
PHASE-DIFFERENCE RELAY | 2003 |
|
RU2241274C1 |
PHASE DIFFERENCE RELAY | 2016 |
|
RU2636750C1 |
PHASE DIFFERENCE RELAY | 2016 |
|
RU2639891C2 |
FREQUENCY-PHASE RELAY | 2016 |
|
RU2641096C2 |
PHASE-DIFFERENCE RELAY | 2003 |
|
RU2241273C1 |
PHASE-FREQUENCY RELAY | 2003 |
|
RU2239904C1 |
PHASE-FREQUENCY RELAY | 2002 |
|
RU2213387C1 |
DIFFERENCE-FREQUENCY RELAY | 2002 |
|
RU2208866C1 |
Authors
Dates
2013-06-10—Published
2011-11-08—Filed