 |
| |||
| directional ground relay (MichaelBurov) | |||
| directional earth relay (Yeldar Azanbayev) | |||
| направленное реле от замыканий на землю: 4 phrases in 2 subjects |
| Electrical engineering | 3 |
| General | 1 |
|
| |||
| directional ground relay (MichaelBurov) | |||
| directional earth relay (Yeldar Azanbayev) | |||
| направленное реле от замыканий на землю: 4 phrases in 2 subjects |
| Electrical engineering | 3 |
| General | 1 |