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Run Away Jake

10/9/2017

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This week we got a call from a customer who had a 17.5 kW Jacobs Wind Turbine (Jake) that was free spinning. We estimate that the blades were spinning approximately 50 rpms/minute…pretty fast.
A coupling on the turbine’s drive shaft had broken before (above) the breaking mechanism (an unfortunate design flaw), so engaging the brake was not an option. It was necessary to climb the 100’ free standing tower and approach the blades from the backside, near the tail boom.
Picture
Broken coupling on drive shaft
The tail was secured and positioned so that the turbine was out of the wind, slowing the blades down. This made it easier to slip a 3/8”, 6’ long Galvanized Aircraft Cable (GAC), which had been fed through an old hose to protect the blades from any damage, around the nacelle and over one of the blades. The GAC was tightly secured with saddle clamps to ensure it remains arrested until a new coupling can be replaced, (or the customer updates to a Bergey 10 kW!).
Picture
Secured GAC prevents the blades from free spinning
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    Marc and Lisa live off-grid and have worked in the Renewable Energy industry for over 10 years. Their passion is to provide knowledge and resources to help people live a more sustainable life.

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  • Home
  • Products
    • Victron Energy Gear
    • Victron Energy Inverter/Chargers
    • Victron Energy Solar Charge Controllers
    • Victron Energy Communications
    • Victron Energy DC Distribution
    • Batteries >
      • Victron Energy Deep Cycle Batteries
      • Victron Energy Lithium Smart Batteries
      • Victron Energy Lithium NG Batteries
    • Eccotemp Water Heaters
    • Generators
    • Pioneer Mini Splits
    • Ruuvi Sensors
  • Become a Dealer
  • Consulting
  • About Us
  • Contact Us
  • Projects