Energy supply arrangement for supplying a motor vehicle with electrical energy via a conductive plug connection and method for operating an energy supply arrangement

A method, comprising:

• providing a charging plug which can be extended in a direction of a motor vehicle, wherein the charging plug has a cylindrical base body, on the lateral surface of which multiple electrical contacts are arranged, the base body being encompassed by a protective ring which covers the contacts in a first position and releases the contacts in a second position for contacting counter contacts of a charging socket arranged on board the motor vehicle, wherein the contacts are in the form of energy transmission contacts and the charging plug has signal transmission contacts in addition to the energy transmission contacts, the energy transmission contacts and the signal transmission contacts being arranged alternately over a circumference of the base body of the charging plug, and the energy transmission contacts having larger dimensions in a circumferential direction than the signal transmission contacts, and wherein the charging plug is connected to a base element which can be displaced by a lifting device, via an elastic element, the elastic element allowing the charging plug to tilt flexibly with respect to the base element at least temporarily;
• and
• supplying the motor vehicle with electrical energy via a conductive plug connection of the charging plug.