FIELD: electric engineering. SUBSTANCE: device has current transducers, relay members, time exposure members, output stage provided with pulse generator and controllable switch for turning electric magnet on, which acts on release mechanism of automatic switch. Device also has indicator, which has flip-flops, EXCLUSIVE-OR gates, light-emitting diodes, "reject" button provided with the first former, the second former and power unit. Device provides indication of current zone for protection characteristic, which induced turning off of the switch. EFFECT: additional exploitation convenience; high speed of determination of troubles in network to be protected. 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| POWER INSTALLATION OVERCURRENT PROTECTIVE GEAR | 1993 |
|
RU2114496C1 |
| DEVICE FOR INDICATING OPERATION OF MULTISTAGE RELAY PROTECTIVE GEAR | 1992 |
|
RU2041527C1 |
| DEVICE TESTING SERVICEABILITY OF AC OVERCURRENT PROTECTION | 2000 |
|
RU2199788C2 |
| DEVICE FOR DETERMINING PHASE-TO-PHASE AND GROUND FAULTS IN NETWORKS WITH AN ISOLATED VOLTAGE OF 6-10 kV NEUTRAL | 2022 |
|
RU2788035C1 |
| OVERCURRENT RELEASE | 1992 |
|
RU2050658C1 |
| RELAY SWITCH | 0 |
|
SU1091244A1 |
| TIME RELAY | 2002 |
|
RU2208259C1 |
| DEVICE PROTECTING LOW-VOLTAGE AUTOMATIC SWITCH | 1993 |
|
RU2091948C1 |
| DEVICE FOR PROTECTION AGAINST EARTH FAULTS IN 3 TO 10 - kV NETWORKS | 2005 |
|
RU2297703C1 |
| GEAR TO PROTECT ELECTRIC INSTALLATION AGAINST CURRENT OVERLOADS | 1997 |
|
RU2124793C1 |
