The measurements of voltage and current in high-voltage tests are difficult, because the amplitudes are high and they cannot be measured directly with conventional measuring and recording systems. Furthermore, not only the peak value but also the shape of the signal, particularly at impulse voltage and current, should be measured and evaluated and this requires an adequate recording system.

Chapter Contents:

• 15.1 Introduction
• 15.2 Measuring system
• 15.3 Amplitude measurements
• 15.3.1 Direct voltage
• 15.3.2 Alternating voltage
• 15.3.3 Impulse voltage
• 15.3.4 Impulse current
• 15.4 Time parameter
• 15.5 Measuring purposes
• 15.5.1 Dielectric tests
• 15.5.2 Linearity tests
• 15.6 Summary
• References

Inspec keywords: measurement uncertainty; electric current measurement; voltage measurement

Other keywords: voltage measurements; recording system; basic measuring techniques; high-voltage tests; current measurements

Subjects: Voltage measurement; Current measurement; Measurement and error theory; Electrical instruments and techniques; Measurement theory