Apparatus for overload protection

Apparatus for progressive phase switching from wye to delta...

Apparatus for recording and playing back video information

Apparatus for resonant excitation of high frequency...

Apparatus for starting a switched reluctance motor

Apparatus for starting up a gas turbine unit or a pump...

Apparatus for stepper motor position control

Apparatus for stopping a grinding mill

Apparatus for straight line oscillation of a wire guide

Apparatus for synchronising ac-motors

Apparatus for the control of a salient-pole machine

Apparatus for the electric damping of oscillations in...

Apparatus for the field-related regulation of asynchronous...

Apparatus to control the speed of an induction motor for use...

Arc-welding generator

Arrangement for adjusting the on/or off angle of the voltage...

Arrangement for automatically influencing a mains supply and...

Arrangement for controllably driving an a.c. motor

Arrangement for controlling the driving and braking current...

Arrangement for driving the drum of a washing machine