Whenever power and signals have to be transmitted from stationary to rotating facilities e.g. power to the pitch drive of the blades, the transmission of all bus systems (Profibus, Fast Ethernet 100 Base Tx a. o.) and signals from the generator head to the rotor and vice versa, SCHLEIFRING systems are the answer.
Standard lifetime for proven gold wire technology designs: 70 million revolutions  

Design options

• Customized connectors possible
• Compatibility to any common bus system
• Integration of optical rotary joint for a passive optical transmission of bus systems such as Gigabit Ethernet
• Absolute or incremental encoder optional
• Heating elements for low temperature environment optional    

Long life design

• Power max. 100 A
• Signal and data transmission
• Standard gold wire technology
• Double track system for extended lifetime
• Lifetime:  minimum 20 years or 140 million revolutions
• IP65

High power design

• Power supply for pitch drive >100 A e.g. 250 A for 5 MW turbine
• Power transmission: carbon brushes on brass rings
• Signal and data transmission: standard gold wire technology
• Separate housings for the power and the signal unit allow easy maintenance
• IP67

Standard design

• Power max. 100 A
• Signal and data transmission
• Gold wire technology
• Maintenance hatches
• Optional: cable connection, junction box and connectors on stator or rotor
• IP65

Hydraulic pitch drive design

• Compact and competitive design
• Power max. 25 A
• Signal and data transmission
• Gold wire technology
• Housing diameter <140 mm
• Optional connectors or pigtails
• IP54