Currents must be measured at many points in the HV electrical system of modern electric vehicles: Be it to analyze charging and consumption processes or to verify protective measures against shield currents. The precise investigation of high-frequency current components requires a wide bandwidth in measurement, and instrumentation in particular can present users with challenges.

• Which currents must be measured at which points in the HV electrical system?
• What requirements are placed on the measurement technology?
• With which methods can currents be measured?
• How can current measurements be performed on test benches and in vehicle testing?

DC and AC voltages in the HV environment are characterized by peaks and dips as well as superpositions and have a significant influence on the interaction of all components. To ensure proper operation of the entire system, regulations set limits and must be verified.

• What are the typical characteristics and interactions of HV voltages in the vehicle electrical system?
• What must be considered when using measurement technology for voltage measurement?
• With which measuring instruments can HV voltages be reliably acquired?
• How can voltage measurements be performed in road tests and on the test bench?