A recent slip ring design, which is also a direct replacement for the pitch-control slip ring on GE 1.5 MW series wind turbine, comes from Moog, East Aurora, NY.
The AC7008 slip ring provides reliable transmission of power and data signals for the rotating blades from the control system. The advantage of the recent design over traditional models is its performance in harsh environments. For instance, fiber brushes and reliable mechanical components in the new unit eliminate costly downtime.
The AC7008 slip ring operates maintenance free for over 100 million revolutions. What’s more, it does so without lubrication and over a wide range of temperatures, humidity, and rotational speeds. The slip ring is protected from the environment and sealed to an IP54 rating.
Key pluses for the design include:
- Maintenance free for over 100 million revolution
- Minimal generation of wear debris
- No lubrication required
- Wide operating temperature range
- Lower life cycle cost
- High reliability
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