EHT integrators have been used for high current measurements in applications were current transformers saturate. The figures shows a 2.5 kA current pulse for 10 ms. The current transformer (green) saturates after a few milliseconds. The EHT integrator, paired with a Rogowski coil, was able to measure the whole pulse. The kink in the current trace is due to a pre-programmed change in the pulse width.