BGB: Siemens-Bonus SWT & Legacy Solutions

AN Bonus 1.3/2.0MW WCT2 Paratec upgrade

• Around this time BGB

supported Bonus in their failure investigation

• Issues addressed with flashing, contamination, and brush degradation

• Upgrade retrofits available

• Wiring diagrams and service information available on request

Lightning brush holder

• BGBs Lightning Protector Brush Holders are robust units that are designed to dissipate lightning energy and thus defend critical components (typically main shaft and yaw bearings) • A low impedance path is created through the rotational interface (hub to

nacelle) from the lightning protection conductor to the ground, therefore protecting the main bearing

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