FIELD: electrical engineering.
SUBSTANCE: device incorporates extra second four-phase bridge rectifier with output terminals making the device output terminals and three differentiating inductive current inverters. Current second windings starts are connected to common zero terminals of the machine. Ends of said windings are connected with appropriate ends of the machine phase windings. Starts of the latter are connected to ends of appropriate third current windings. Starts of the latter are connected to ends of conductors phased with the line for connection of the machine to its switch. Input terminals of second rectifier are connected to common zero terminal of the device and to starts of third coils of all groups. Ends of the latter are connected to said connectors and the device appropriate phase.
EFFECT: reliable fault protection.
1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| MEASURING DEVICE OF DIFFERENTIAL CURRENT PROTECTION OF BUSES | 2009 |
|
RU2396661C1 |
| MEASURING DEVICE OF DIFFERENTIAL CURRENT PROTECTION OF BUSES | 2013 |
|
RU2551632C2 |
| DEVICE FOR UNIFORM DISTRIBUTION OF REACTIVE POWER | 2008 |
|
RU2359310C1 |
| DEVICE FOR UNIFORM DISTRIBUTION OF REACTIVE POWER | 2009 |
|
RU2402134C1 |
| DEVICE FOR OFFSET FROM MAGNETISATION CURRENT RUSH DURING CONNECTION UNDER VOLTAGE FOR TRANSFORMER DIFFERENTIAL PROTECTION | 2015 |
|
RU2593380C1 |
| NEGATIVE-SEQUENCE CURRENT MEASURING TRANSDUCER FOR THREE-PHASE THREE-WIRE CIRCUIT | 2013 |
|
RU2536784C1 |
| MEASURING NEGATIVE SEQUENCE CURRENT CONVERTER | 2010 |
|
RU2428705C1 |
| ACTIVE CURRENT MEASURING DEVICE | 2012 |
|
RU2518846C2 |
| POWER TRANSFORMER PROTECTION PACKAGE | 2018 |
|
RU2680817C1 |
| MEASURING CONVERTER OF NEGATIVE SEQUENCE CURRENT | 2010 |
|
RU2426138C1 |
