Nomex® for Generator Insulation Helps Extend Equipment Life
From small generators used in wind turbines to very large turbo generators, the use of DuPont™ Nomex® brand papers and Nomex® based laminates for generator insulation helps improve reliability.
Generator insulation is a small but critical component that plays a major role in determining the reliability and service life of a generator. Choosing Nomex® as generator insulation helps increase reliability, prevent premature failure and extend generator service life.
The outstanding thermal performance, excellent dielectric strength and mechanical toughness of Nomex® are the reasons why it is an ideal choice as generator insulation for all sizes of generators used in a broad range of applications.
Exceptional Thermal Protection
The use of Nomex® for generator insulation can help prevent premature failure and equipment downtime. That’s because Nomex® does not shrink, embrittle, soften or melt during short-term exposure to temperatures as high as 300°C, and because it maintains good insulating properties continuously at 220°C for 10 years.
Excellent Dielectric Strength
Nomex® insulation features excellent electrical properties, even when exposed to environmental conditions such as high humidity.
Superior Mechanical Toughness
The excellent mechanical strength and resilience of Nomex® insulation help extend the service life of generators subjected to harsh operating conditions, such as the abrasion caused by thermal expansion and centrifugal forces in standby gas-turbine generators.
Typical Applications in Generators
Nomex® papers and Nomex® based laminates are used in generators such as:
- Slot insulation
- Wedges, midsticks
- Phase insulation
- Conductor insulation
- Coil separators
- OCT Tape
- Pole insulation
- Turn insulation
- Main wall insulation
Typical Generator Equipments
Nomex® papers and Nomex® based laminates are used in virtually all types of generators, including:
- Turbo generators
- Hydro generators
- Low voltage generators
- High voltage generators
- Wind generators
DUPONT PRODUCTS & SERVICES
- Nomex® 800 Series
Nomex® 410 and the 400 Series
Nomex® 410, an original benchmark product, is widely used for a majority of electrical equipment applications and is considered our gold standard based on its more than 50 years of proven performance. It anchors the Nomex® 400 Series.
Laminates made with Nomex®
DuPont works with highly qualified laminators who produce high-quality laminate insulation products based on Nomex® paper to address a broad range of performance requirements. Nomex® is the critical component that helps enable these laminates to perform.
ABB’s Rapid Recovery Transformer Initiative
ABB, partnering with the U.S. Department of Homeland Security (DHS), delivered three modular transformers from its St. Louis, Missouri facility to a Texas substation within 20 hours in an emergency drill. These transformers designed with DuPont™ Nomex® high-temperature insulation can be shipped and fully energized in less than a week.
Power Generation and Distribution
DuPont offers a wide range of high-performance products that help optimize the performance and extend the service life of power generation and distribution equipment.