| 摘要 |
Switchgear, in particular relays and/or contactors having a solenoid system with armature and yoke, a coil and an open- and/or closed-loop control device of the switchgear drive are described, wherein actual values of drive-specific parameters are detected by sensors.After a switching command, the open- and/or closed-loop control device does not affect an output quantity (e.g., coil current) until at least one predefined threshold value of the switching parameters (for example, of contact speed) is attained.
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