| 摘要 |
Vacuum contactor unit, with electric system connected to all three connector phases, parallel to the main line contact, characterised in that the electrical system is a system of forced commutation, containing a thyristor switch (3) inductance connected (4) with the first switch of the contact(1) and with first pole of the current source(5), whereas the switch (3) is connected at the other side through a commutation condenser (6) with the second switch of the contact (1) and with the first pole of the element (7), from which a current signal is picked, whereas between the first and second switch of the contact(1) there is a control system connected (8), whose control output is connected with a switch(3), while the second pole of the element (7) is connected through a receiver (9) with the second pole of the current source (5) and output of the element (7) is connected with the input of the component (10).<IMAGE>
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