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Siemens Transformer Lifecycle Management (TLMTM) will design the retrofit solution and install shielding to protect the tank and conservator from all sides. The protection system panels have been designed and tested to withstand rifle projectiles according to VPAM Class 13. This is the highest class of rifle projectiles specified by VPAM, and is the most powerful commonly available bullet that is not considered a destructive device under the United States National Firearms Act.


A big advantage of this Siemens bullet resistant system is that it does not require an additional foundation, and panels are mounted directly on the tank. The transformers’ current oil-filled bushings will also be exchanged and replaced with HSP Resin Impregnated Synthetic (RIS) bushings. This means that even if an RIS bushing is penetrated by a bullet, it will not lead to fire because the polymer insulated bushings do not contain oil.


“This great success for Siemens Transformer Lifecycle Management demonstrates our innovation lead with superior solutions for transformer resilience and is the evidence that our Pretact® resilience concept is exactly what utilities currently need. In the end, it is not only about preventing transformers from operational failures, but also about protecting them against harm from the outside”, says Leone Lattanzio, Head of Customer Service for Transformers within the Energy Management division (EM TS CS TR).

Would you like to learn more about bullet resistant transformers?
Download our bullet resistance flyer