Wind Turbine Slip Rings

Wind turbines require reliable transmission of power and data signals from the nacelle to the control system for the rotary blades. Moog’s slip rings provide the performance and quality needed in demanding environments. Costly downtime is eliminated by using fiber brushes and robust mechanical components in the slip ring design.

For more information about how wind turbine slip rings can be tailored to fit your specific application, contact our applications engineers.

Moog Slip Ring Advantages

  • Maintenance free for 100 million revolutions
  • Minimal wear debris generation
  • No lubrication required
  • Wide operating temperature
  • Lower life cycle cost
  • High reliability
  • No periodic inspections required

Products

Model Description Signal Circuits Power Circuits
WP6807 Hydraulic / Electric Design  6 - 24;
10 Amps each continuous
All circuits can be paralleled
for 240 Amps max.
WP6808 Electric Blade Pitch Actuation 18 - 72;
10 Amps each continuous
20, 50, 100, 200, 300 Amp RMS continuous @ 600 V
WP58484 Power and signal transfer for small wind turbines 2 signals 3 power, 18 Amps up to 600 V

Replacement Solutions

Moog now offers a AC7008 direct replacement pitch control slip ring for the GE 1.5 MW wind turbine. Moog’s unit provides direct connection to the gearbox with wire terminal connections in both the stator and rotor junction boxes.

Moog now offers a AC7008-ESS direct replacement pitch control slip ring for the GE 1.5 ESS wind turbine. Moog’s unit provides direct connection to the gearbox with wire terminal connections in both the stator and rotor junction boxes.

Moog's AC7008 series has set a new standard for reliability and performance enhancement in the GE turbines.  Our AC7008-4N direct replacement pitch control slip ring keeps this tradition going with the same high performance technology for the GE 1.X turbine series with 100 meter and greater blade diameters.

Moog now offers a WP7129 direct replacement pitch control slip ring for the NEG Micon NM72 / 82 wind turbines. Moog’s unit mounts directly to the gearbox with a through passage for the hydraulic lines and wiring.

Moog now offers a WP7171 direct replacement pitch control slip ring for the Suzlon S88 wind turbine. Moog’s unit provides direct connection to the gearbox with wire terminal connections in both the stator and rotor junction boxes. Each unit is shipped with a heater already installed for cold weather installations.

Moog now offers a WP7214 direct replacement pitch control slip ring for the Clipper Liberty wind turbine. Moog's unit provides a direct interface to the turbine gear box with mating connections for direct connection to the turbine wire harness.

Custom Solutions

Moog offers the superior fiber brush technology that has an extensive lifetime of over 100 million revolutions. This technology does not require lubricants and is characterized by low wear generation for minimal maintenance. Also the temperature range and the packaging of this product matches the harsh conditions required by this industry. 

Our engineering department is available for consultation to help you tailor a solution to meet your requirements.

Contact Us

Product Spotlight

The EPA3 slip ring is the next generation of advanced Moog slip ring products developed for the wind energy market and large wind turbine electric pitch control systems.

Learn More >

View Technical Specifications
[English]   [Italian]

Literature

  • Custom Solutions for Wind Energy Market Brochure
    [English] [Italian]

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