Industries: Wind

Premium Wind Turbine Upgrades

Custom-Engineered Aftermarket Parts that Outperform OEM Parts

Helwig Carbon’s Wind Team provides customers with superior power and grounding solutions that are customizable to meet their desired outcomes and risk profiles. With our industry-leading knowledge and advanced brush technology, plus a wide scope of offerings and world-class field service, we can deliver service excellence.

Industry reports of poor brush life, low-quality brush holders, and wind turbine failures are frequent in OEM wind turbine generators, but by installing our premier aftermarket upgrades, you will see a significant decrease in maintenance and increase in brush life, performance, safety, and reliability.

Industry Leading Technologies

Main Shaft Grounding

The main bearings on a wind generator are susceptible to damage from static discharges and lightning strikes. Electrical discharge through the bearing can cause white etching cracks (WEC) and premature bearing failure. Avoid downtime and expensive repairs with superior shaft grounding (also known as shaft earthing) provided by Helwig’s BPK-AM, part of the Bearing Protection Kit (BPK)™ product line. Industry-leading BPKs utilize a proprietary silver graphite brush to instantly ground any damaging currents. The BPK-AM comes preinstalled on a ready-made bracket for easy installation in the field. Off-the-shelf tower kits are available for Siemens-Gamesa and GE 2X platforms. Custom designs are also available.

Features:

  • Durable, heavy-duty brass holder
  • Proprietary K007 silver graphite brush
  • Mounted on specially engineered, sturdy, and corrosion-resistant stainless steel bracket to fit directly on main shaft
  • Easy installation using existing bolt pattern
  • Extra long life cycle
  • Maintenance free solution
  • Grease Deflector Assemblies are available to ensure no contaminants are present on the brush path
  • Kits are in stock & ready to ship
  • OEM Approved

Main Shaft Grounding – BPK Assembly

 

Main Shaft Grounding Kit with Wiper

 

Pitch Motor Shaft Grounding

Save your motor bearings from induced shaft currents using one of our easy-to-install axial Bearing Protection Kits (BPKs)™. Industry-leading BPKs utilize a proprietary silver graphite brush to instantly ground any damaging currents.

Currently OEM approved with several wind pitch motor manufacturers.

iBrush Carbon Brush Remote Monitoring

The i-BRUSH Remote Monitoring System with integrated sensors in the carbon brush enables maintenance staff to check brush condition and performance characteristics at anytime from anywhere. With knowledge of remaining brush life, future maintenance can easily be planned to secure uptime.

Lightning Protection

With lightning strikes being a major concern for wind turbines, Helwig Carbon offers brushes and brush holders that meet the rigorous demands of lightning protection. Our brush grades perform well in electrical surges and are not prone to wear. Low resistivity ensures that electrical currents are directed away from crucial components. Our brushes and brush holders are unsurpassed in quality and are a perfect safeguard for your renewable energy investment.

Metalized Graphite Brushes

Power

  • Custom-engineered brush grades virtually eliminate dusting and ring groove problems
  • Longer brush life than original OEM brush

Grounding

  • High durability grounding grades ensure extended life
  • Provides superior performance and protection against high surge occurrences

Brush Holder Kits

Kit Advantages

Constant Force Springs

  • Improved replacement springs to replace the OEM springs
  • Enhanced spring design extends brush life by applying constant pressure at the brush face

HQDs

  • Impressively fast and easy way to change brushes
  • No screws to remove, lose, or replace
  • HQD’s lock together with a tight, positive locking action even under rough conditions
  • Increase maintenance safety

Brush Wear Switches

  • Improved switches provide accurate brush wear notifications down tower
  • Electrical assembly comes fully assembled and organized with easy-snap plugs
  • Dust & dirt proof easy-snap plugs

Custom Solutions For Your Business

With world-class engineers and quick prototyping, Helwig is ready to support your project from concept through design completion, regardless of where you are in the development process. We produce custom-engineered carbon graphite brushes, brush holders, shaft grounding solutions, carbon graphite mechanical components & more, delivering reliable performance for demanding applications. Start your project with confidence by requesting a quote today.

Explore Wind Energy Services

With our industry-leading knowledge and advanced brush technology, plus a wide scope of offerings and world-class field service expertise, we can deliver service performance excellence.
Motor/Generator Test Lab

Our Milwaukee headquarters houses a state-of-the-art, climate-controlled, 2500 sq. foot motor test lab. We can replicate field conditions or customer specifications to provide accurate results for load, environment, and duty cycle.

Over 150 stock motors to couple with your motor for life testing.

In this lab, we test our products in many capacities to engineer them for the toughest environments. We also offer motor testing to customers to help develop application-specific grades to improve motor performance.

Other Studies:

  • Grade Comparison Tests
  • Performance Comparison Tests
  • Life Tests
  • Arcing Tests
  • Black Band Tests
  • Contamination Tests
  • Other
Up Tower Engineering Support

Our dedicated Wind Team provides problem diagnosis, installation guidance, part maintenance recommendations, and industry-leading brush & holder knowledge.

Wind Team

  • Comprised of wind engineers and technicians
  • Climbing Certified
  • Compliant to 29 CFR 1910 & 29 CFR 1926
  • GWO 1001