Industries: Hydro Power
Hydro Power
Custom-engineered aftermarket parts to outperform the existing OEM parts
As a North American leader in Hydro Generation applications, Helwig Carbon offers custom engineered and stocked solutions for superior hydro performance. Helwig has a long history of supplying carbon brushes for slow-speed hydroelectric turbines. We have several low-friction graphite grades that perform successfully on these applications. We have worldwide turbine retrofit experience and proven field results on hydro applications.
We can provide direct retrofits or custom designs that will maximize performance and improve brush life. We also offer carbon graphite seals and rings and the i-BRUSH Carbon Brush Remote Monitoring System.
Industry Leading Technologies
Exciter Generator Brushes
With wide-ranging experience in Hydro Generation, Helwig has designed grades, like H45, that will outperform the competition. These grades offer:
Features:
- Superior longevity with low friction
- Low dusting characteristics
- Installed on an extensive amount of Allis Chalmers, GE, and Westinghouse units
Field or Excitation Slip Ring Brushes
- Excellent power transfer
- Low friction
- Low dusting
- Handles seasonal loads during peak and dry periods.
Turbine style holders
Features:
- Direct retrofit and custom designs for upgrades are available
- Adjustable mounting bolts to increase installation flexibility for proper height above rings
- Constant force holder design with Wear Indicators for easy maintenance
- Replaceable spring clips provide less costly downtime
Adjustable slip ring holders
- Fully adjustable slip ring holder designed to fit a wide array of applications
- Flexible ring diameters, post diameters, and positions
- Custom designed holders easily retrofit existing equipment and exceed performance of the original holder
- Custom designs for wound rotor induction motor and synchronous motor holders
- Standard holders in stock for GE and Westinghouse power generation
- Replaces single holder and bank of two designs
- Constant force spring design
- Offered in 6 standard box size
Constant force springs
- Proper spring pressure ensures better brush contact with the commutator
- Increased spring force reduces electrical brush wear thus improves brush life and performance
- Replacing our springs is easy and safer than traditional springs!
Carbon Graphite Seals & Rings
- Precision machined with tolerances as tight as ± .0005 in (.01 mm)
- Self lubricating for low friction and reduced wear in water lubricated environments
- Self lapping and conformable to the mating face for improved sealing
- High hardness and abrasion resistance for silt laden water conditions
- Dimensional stability under extreme temperature fluctuations and high pressure environments
We also have the capacity to produce large, segmented rings up to 120 inches in diameter
iBrush Remote Carbon Brush Monitoring System
Carbex i-BRUSH carbon brush remote monitoring 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.
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.
