WP7286 Pitch Slip Ring for the GE Wind Turbine

FOR GE WIND TURBINE

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WP7286 is the next generation pitch slip ring for the GE wind turbine. This design utilizes the same high-reliability, no maintenance, fiber brush technology as our AC7008 pitch slip ring family –– which has been a solid performer and allows GE wind assets to operate with higher productivity and a lower cost of operation by eliminating costly downtime related to pitch slip ring issues and required maintenance. The WP7286 has been further enhanced to improve installation and performance.

Redesigned to make the slip ring smaller, reducing size
23.13 kg (51 lb), easier to lift, 9.07 kg (20 lb) less than AC7008 slip ring
A convenient handle makes the unit easier to handle
Improved sealing to keep the slip ring area cleaner, improving life and operation

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Overview

Models and Specifications

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Features

No maintenance required
No lubrication required
Direct bolt-in replacement
Handle for easier lift and install
IP65 sealed enclosure
Heater for cold weather installations
Adjustable terminal block locations in rotor junction box for flexibility with umbilical cable length

Advantages

Maintenance free for 100 million revolutions
Minimal wear debris generation
Fiber brush technology used
No lubrication required
Wide operating temperature
Lower life cycle cost
High reliability

Model	Weight	Brush/Ring Material	Brush.Ring Life	Lubrication	Operating Temperature	Heating Element	Sealing
WP7286-2N GE turbine 65 A / 400 V	23.13 kg (51 lb)	Silver	>100 million revolutions	None required	-40 to +80°C (-104 to +176°F)	13 watt, 240 volts standard	IP65 (slip ring box enclosure)
WP7286-ESS GE turbine 30 A / 600 V EES Control	23.13 kg (51 lb)	Silver	>100 million revolutions	None required	-40 to +80°C (-104 to +176°F)	13 watt, 240 volts standard	IP65 (slip ring box enclosure)
WP7286-4N GE turbine 100 A / 400 V 1.X/2.X	25.40 kg (56 lb)	Silver	>100 million revolutions	None required	-40 to +80°C (-104 to +176°F)	13 watt, 240 volts standard	IP65 (slip ring box enclosure)
WP7286-5N GE turbine 100 A / 400 V (2.X ^)	26.80 kg (59 lb)	Silver	> 100 million revolutions	None required	-40 to +80°C (-104 to +176°F)	13 watt, 240 volts standard	IP65 (slip ring box enclosure)