| 摘要 |
FIELD: electricity. ^ SUBSTANCE: device for direct current interruption with contact switching unit includes contacts, arc blowout device, parallel magnetic blowout coil, independent electric power supply, current sensor, which are connected to the main circuit. Independent electric power supply is connected to magnetic blowout coil through control unit of magnetic blowout coil and is provided with possibility of continuous current flow in circuit of parallel magnetic blowout coil both at open and closed contacts. To the main circuit there also connected is current direction sensor to control the polarity. ^ EFFECT: shortening the time of arcing, and excluding the dependence on current flow direction in the main circuit. ^ 1 dwg |
