[GingisK]

Transformers ARE NOT subject to destruction from EMP events. Only solid state devices are affected.

[HiTech RedNeck]

“Maybe”

Overvoltages can short out windings of transformers with carbonized arcs.

[meatloaf]

Here’s the report from the Commission to Assess the Threat to the United States from Electromagnetic Pulse (EMP) Attack

Transformers are at risk. Read it for yourself.

http://www.empcommission.org/docs/A2473-EMP_Commission-7MB.pdf