METREL MI 3399, Instruction Manual With Exercises

Page: 174 / 272

Power and Voltage Quality Trainer AD 2
– MI 3399
174
Figure 4-48: Measurement submenu
Figure 4-49: Real time measurements of powers
In this case, we have pure sinus symmetrical inductive load, without any harmonics.
Therefore the instrument shows in TOT screen, that total consumed power is
concentrated at the fundamental frequency, as non-fundamental (harmonic) power
components are almost negligible. However 15º phase shift between voltage and
current introduce 178 kVar of reactive power which in practice, can be compensated
by adding a capacitor bank.
Figure 4-50
: 15º phase shift between voltage and current
Real time measurements can be also presented in PowerView by using the Real-time
Scope button in toolbar, as shown below.