Figure 5. RLC Ladder Network for Overvoltage Study when the Neutral Point is either Insulated (Open Breaker) or Connected to the Ground (Closed Breaker)

From

A Study on Overvoltage Distribution Across the High Voltage Winding of an Electric Power Transformer

Gloria Ciumbulea, Lavinia Iordache (Bobaru), Sorin Deleanu, Mihai Iordache, Neculai Galan, Scott Basinger, Gregory Von Lipinski, David Carpenter

American Journal of Electrical and Electronic Engineering. 2016, 4(4), 110-122 doi:10.12691/ajeee-4-4-2