| 摘要 |
1. An arc extinguishing device, comprising a data entry unit (7) for switching current direction in the head electric circuit, a coil (3) powered from a side source and intended for applying an electromagnetic force in case of closing the quench electric circuit, comprising a coil (3) and a switching equipment (2) for commutation the current direction in the quench electric circuit based on a signal from the switching unit (7) for switching current direction. 2. The device of Claim 1, wherein the data entry unit (7) for switching current direction comprises two sensors (1) and a subtracter for subtracting output signals of the sensors. 3. The device of Claim 2, wherein the data entry unit (7) comprises one amplifier and one linkage for each output signals of the sensors. 4. The device of Claim 2, wherein the data entry device (7) comprises a comparator for comparing the output signal of the subtracter to threshold value and an amplifier for amplifying output signal of the comparator. 5. The device of Claim 2, wherein the sensors are Hall sensors are arranged in the conductor of the head electric circuit opposite each other. 6. The device of Claim 2, wherein the device comprises a capacitor (6) connected a circuit coil whose charge is not influenced by switching equipment (2). |
