Von Roll institute

Pre­mier cen­ter of excel­lence for high-vol­tage insulation


Our com­pe­tence cen­ter for high-vol­tage insu­la­tion of rota­ting machinery is one of the worl­d’s lea­ding insti­tu­tes. It spe­cia­li­zes in the deve­lo­p­ment of electri­cal insu­la­tion sys­tems for motors, gene­ra­tors and transformers.

As part of our group­wide pro­duct deve­lo­p­ment, the insti­tute plays an important role in the design, qua­li­fi­ca­tion and long-term tes­ting for new pro­ducts. As an inno­va­tion part­ner, we sup­port lea­ding manu­fac­tu­rers in exter­nal pro­jects to deve­lop cus­to­mi­zed insu­la­tion systems.

A coope­ra­tion with us gives you access to our expe­ri­ence and know­ledge from over one hund­red years.


Our test methods — solid ground for your decisions


High-vol­tage tests for extreme stress — inclu­ding stan­dard-com­pli­ant documentation.


Phy­si­cal tests after ther­mal aging.


Enab­ling your electric vehi­cle to go fur­ther than others. Find out which mate­ri­als are ideal for your electric drives.


Do you have spe­cial requi­re­ments? We sim­ply test it all for you — down to the smal­lest detail.

Our ser­vice — take advan­tage of our know-how

Bene­fit from our uni­que exper­tise and expe­ri­ence: involve our team in the deve­lo­p­ment of your insu­la­tion sys­tem at an early stage — as con­sul­tants, coope­ra­tion part­ners and tes­ters. By deve­lo­ping inno­va­tive and effi­ci­ent insu­la­tion sys­tems, we help you to stay one step ahead of your competition.


Tell us your spe­ci­fic requi­re­ments for high and low vol­tage insu­la­tion sys­tems. We will respond with cus­to­mi­zed and fully tes­ted insu­la­tion systems. 

Insu­la­tion trai­ning incl. e‑drive

In our trai­ning cour­ses you will gain a detailed over­view of insu­la­tion mate­ri­als and sys­tems for rota­ting high and low vol­tage machi­nes. This inclu­des topics like selec­tion, pro­ces­sing and testing.


A look into the prac­tice

Class H sys­tem of next generation

Gene­ra­tors will become even more effi­ci­ent in future thanks to our new Sami­c­abond system.

Top story wind

Expan­ded capacities 

Our che­mi­stry labo­ra­tory in Italy was newly equip­ped to incre­ase capa­city for the deve­lo­p­ment of state-of-the-art resins.

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Coil shop

Von Roll Ban­ga­lore beco­mes the most modern coil manu­fac­tu­ring cen­ter in India.

Press release

E‑Drive Test Lab 

The High-Vol­tage Insti­tute opens a eDrive labo­ra­tory in Breitenbach. 

Press release

110 years Dolph’s

Foun­ded in 1910, the brand will cele­brate its 110th anni­ver­s­ary in 2020. This was publis­hed in the Electri­cal Appa­ra­tus maga­zine. Curious?

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