Transient voltages occur on the terminals of superconducting coils and may lead to internal
over-voltages. The main objective of this work was to calculate the transient electrical
behaviour and internal voltage distribution within the ITER poloidal field (PF) coils at four
scenarios and was made using the PF 3 and PF 6 coils as examples. The calculated maximum
voltages will be used for definition of amplitudes and voltage waveforms for the tests of the
high-voltage insulation of the coils.