Films for power grid and smart grid applications
Excellent endurance and durability in demanding voltage stress levels is needed in modern power and smart grid use cases.
Our films for impregnation and metallised films cover the quality standards of power and smart grid capacitor applications (HVAC/HVDC). Optimised film characteristics and high dielectric strength are achieved by our high-quality manufacturing process ensured by authentic testing.
The rise of the renewable energy market brings new challenges to the grid systems. Power grid applications require long durability and the ability to face high stress levels. Continuous R&D leads to superior quality. We help our customers ensure energy infrastructure is reliable in all circumstances for decades to come.
Our films for impregnation and metallised films are developed to answer to the growing requirements present in the designs of the power and smart grid units.
Superior quality through continuous R&D
100 years of expertise
Extensive know-how and expertise in production and R&D
Exclusive usage of our own
base film
Full product traceability is assured for every manufacturing step
Fully tailored products
Total production chain control enables tailormade solutions and guarantees product quality
Base film for metallisation
The base film for metallisation is PP film manufactured using super clean electrical grade high-temperature resin and state-of-the-art manufacturing process. This is a low shrinkage film with a controlled smooth surface on both sides and corona treatment on one side. The base film is designed for high ambient temperatures to meet the needs of HVAC/HVDC applications, i.e. high dielectric strength and long durability. Available in thickness range starting at 1.9 um.
Metallised film
Metallised film for smart grid applications is dedicated to HVAC/HVDC capacitor applications at high ambient temperatures. It also displays excellent ripple current behaviour.
In order to guarantee film quality we only use our own base films in production (thickness range starting at 1.9 um). Metallising is done using a zinc-aluminium alloy or Bi-metal configuration (aluminium active area and zinc contact). All films are also available with a straight and/or wave cut margin or optional pattern printing. Depending on customer design (simple or internal series configuration) the resistivity profile can be either standard or individual.
Film for impregnation
Our film for impregnation has controlled surface roughness on both sides facilitating complete oil impregnation.
Our PP films are manufactured through the tenter process with super clean electrical grade resin. Each film can be used for all high-voltage power and filter capacitors – up to the largest sizes and with the highest stresses. Our RERT film has been designed to meet the needs of high dielectric strengths and long durability at high ambient temperatures.
Wrapping film for capacitors
Tervakoski Film wrapping films for capacitor elements are made of heat-sealable PP film with controlled shrinkage. Tervakoski Film wrapping films are specifically designed for wrapping purposes in the capacitor industry including films for ultra-high temperatures.
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