| 摘要 |
The electrical contactor (100) according to the invention comprises at least one first switch (104) that includes a first moving contact (112) and several second switches (106) that include a second moving contact (116). The contactor further comprises at least one control device for controlling the movement of the or each first (112), second (116) moving contact, respectively. The control device is capable of controlling the movement of the or each first moving contact (112) into the open position before that of each second moving contact (116) into the open position, and when the or each first moving contact (112) is in the closed position, the second switches (106) are connected in parallel, whereas when the or each first moving contact (112) is in the open position, the second switches (106) are connected in series. |
| 主权项 |
1. An electrical contactor comprising:
at least one first switch, the or each first switch including a pair of first fixed contacts and a first moving contact moving between a closed position and an open position, several second switches, each second switch including a pair of second fixed contacts and a second moving contact moving between a closed position and an open position, the first, second fixed contacts, respectively, being, in the closed position of the first, second moving contact, respectively, electrically connected to each other via the first, second moving contact, respectively, and being electrically isolated from each other in the open position of the first, second moving contact, respectively, at least one control device for controlling the movement of the or each first, second moving contact, respectively, in the open or closed position, wherein it comprises, in a same housing, the first switch or switches and the second switches, wherein after the control device receives an order to open the contactor, the control device is capable of controlling the movement of the or each first moving contact into the open position before that of each second moving contact into the open position, with a time offset comprised between 10 milliseconds (ms) and 1 second (s) between the movement of the first moving contact(s) and the movement of the second moving contacts, preferably comprised between 50 ms and 500 ms, still more preferably comprised between 50 ms and 100 ms, and wherein when the or each first moving contact is in the closed position, the second switches are connected in parallel, whereas when the or each first moving contact is in the open position, the second switches are connected in series. |
