The wind power plants of the WP series are based on the well-established technology driven concept of the

1.5-megawatt WP series with variable speed generator and converter system and electrical single-blade adjustment. The second generation of these high-performance power plants offer the same high reliability and maximum power output as previous models. Due to the leading technology and innovative solutions developed by Indeks, the company's wind turbines can be fully integrated into the existing power grid.

Due to the excellent design in every detail, the wp series offers you excellent returns over its entire service life of the equipment.


*Ample space in nacelle for ergonomically optimised and reliable service
*Hub easily accessible in all weathers without having to leave the nacelle
*Excellent accessibility of all components
*Guards mounted over all rotating components ensure safe servicing
*If necessary, the unit can be easily and safely dismantled as drive train components are flange-mounted and the electric connections are equipped with plug-type connectors
*Easy handling of heavy components due to sturdy folding crane located in the nacelle
*Permanent status monitoring and reliable early detection system combined with optimised maintenance Schedule based on conditior monitoring system
*Helicopter abseil platform for offshore installations ensure accessibility to the unit even in adverse weather conditions.

*No leakage of lubricants at hu bor nacelle, due to:
-labyrinth packing in a spinner
-grease and oil collecting pans integrated in nacelle
-coaming edges in nacelle panelling and
*Oil pan below azimuth gearing
*Closed central lubrication system of blade bearings
*Shielding of all relevant cables to protect workers and machine


Pitch System
*Virtually maintenance-free electronic system
*High-quality, generously dismentioned blade bearing with permenant track lubrication
*Protected against the elements by means integrated deflector in the spinner
*Maximum reliability via redundant blade angle detection by means of two separate  measuring systems 
*Fail-safe design with separate control and regulation systems for each rotor blade


Power Rail
*Prevention of electrical interference in the plant 
*Compliance with VDE regulations 
*Best possible protection in the event of a short circuit or fire 


Rotor bearing and shaft
*High-performance spherical roller bearing with adjusted bearing housing and permanent lubrication for prolonged service life 
*Rotor shaft forged from heat-treated steel and optimised for power flow 


Gear system
*Combined planetary/spur wheel gearbox 
*Dimensioned according to REpower gear regulations, meeting the most stringent requirements regarding service life and smooth running 
*Optimised efficiency 
*Elastomer bearing of torque multiplier for structure-borne sound insulation 
*Low temperature level due to effective oil cooling system 
*Excellent oil quality due to three-stage oil filter system 


Generator and converter
*Yield-optimised variable speed range 
*Low conversion loss and high total efficiency as converter output is limited to maximum 20% of the overall output 
*Fully enclosed generator with air/air heat exchanger 
*Optimised temperature level in generator, even at high outside temperatures 
*Water cooled converter for optimised cooling


*Externally geared four-point bearing, driven by generously dimensioned high-quality gear motors 
*Holding brakes with fail-safe function implemented with hydraulic pressure accumulator release the drives in idle mode and stabilise the nacelle 
*Minimum load on drives due to low friction at four-point bearing and release of brakes during tracking 

Lightning protection
*Lightning protection concept conforming to IEC regulations with internal and external lightning protection 
*External lightning protection system with blade receptors and lightning rod at the weather mast 
*Reliable protection of bearings due to defined lightning conduits 
*GFC coupling for the galvanic insulation of the generator system from the gear system 
*Over-voltage arrester protecting the electric system 
*Reliable protection of the generator by means of insulated bearing bushings


Tube tower
*Characteristic frequency of the tower is above rotating frequency of the rotor (rigid design) and ensures minimum stress in tower and machine 
*No restrictions regarding speed range of unit, as there is no risk of frequency interference 
*Excellent component safety due to elbow flanges and load-optimised door opening

*Technical Data

Rated Power
Rotor Diameter
Hub Heights
Power Control
Rotor Speed
2.05 MW
92.5 m
68.5 / 78.5 / 80 / 100m
Pitch (electrical)
7.8–15.0 1/min

*technical modifications reserved

Tab 2