Electrical performance interface of a vehicle

摘要

The invention relates to an electrical power interface of a vehicle, in particular a utility vehicle or a rail vehicle. The power interface includes a first power contact (11) that is contactable with a second power contact (21; 41) to establish an electrical power path; an auxiliary contact (14) disposed electrically isolated from the first power contact (11) and disposed to the first power contact (11) such that when the first power contact (11) and the second power contact (21) are configured to form the electrical power contact (11) Power contacts are brought into contact with each other, the auxiliary contact (14) the second power contact (21) also contacted, wherein the auxiliary contact (14) via a measuring path (3) is electrically connected in parallel to the first power contact (11). The power interface further comprises a measuring device for detecting the state of an electrical contact between the first power contact (11) and the second power contact (21), which is implemented via the measuring path (3) a voltage drop at the electrical power interface and / or correlated with the voltage drop To determine size.