An arrangement of an oil pump and its drive in a transmission that has a transmission housing and at least one transmission shaft. The compensator string is arranged to be connected on its first end to one phase of a transmission grid of a rated voltage exceeding 69 kV. In particular, the viscous drag on the object yields a measure of its size, while the stiffness of its confinement can be compared with a potential model to reveal the total charge it carries. In one embodiment, the threads have a buttress shape. The safety arrangement includes a deactivation arrangement to deactivate at least one safety function.