Potential transformer electric stress. QuickField FEA software simulation example

Potential transformer or voltage transformer* is an instrument transformer used to measure the high voltage.
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The primary high voltage winding has a large number of turns and features a special form factor to reduce the electric field stress.
The primary high voltage winding has a large number of turns and features a special form factor to reduce electric field stress. One end of the winding is connected to the mains and the other end is grounded. The electric potential is distributed linearly along the winding. There are 35000 turns in the primary winding and 100 turns in the secondary.