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PRFTECHNIK Alignment Systems GmbH

Your independent partner for

installation, operation and

maintenance

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PRFTECHNIK Alignment Systems GmbH December 09 2

World Wind Energy Total installed capacity and prediction 1997-2010 (MW)

Wind power

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PRFTECHNIKAlignment Systems

Solutions to increase productivity

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Wind turbine installation

Foundation levelness plays a decisive role in the plumbness of thewhole tower

Tower segments must be flat and parallel on opposite sides to ensureproper assembly.

The large cam wheel mounted on top of the tower ischecked for flatness

The nacelle-hub assembly possesses several flanged surfaces

Depending on the measurement task, LEVALIGN laser measurementsystem or the high precision electronic inclinometer INCLINEO areapplied

1Hub

2 Cam wheel

3 Tower segments

4 Foundations

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Wind turbine installation

LEVALIGN laser is used todetermine the profile of flanged

surfaces.

By positioning a sensor at differentpoints of the surface, the height of

each single point is measured,

providing surface profile flatness.

Vertical mounting is the mostappropriate for the nacelle side

flange which is used to mountblades as well as the counterpart

the blade base itself.

Using LEVALIGN to check flange surface flatness

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Measurement of levelness with

LEVALIGNUltra

Tower segment flanges must be flat.

Their flatness must be within specifiedtolerance values.

Flange flatness is measured with ROTALIGN

Ultra and the LEVALIGN laser

The laser is fixed in a vertical position

The sensor gathers flatness values which aretransmitted to the ROTALIGN Ultra system for

computing and displaying the surface

Flatness of wind tower flanges

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Alignment task:

Coupling alignmentbetween gearboxand generator

Blades

Gearbox

Generator

Alignment of wind turbines

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PRFTECHNIK

shaft alignment systems

ALIGNEO OPTALIGN smart ROTALIGNUltra

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MultipointMeasurementMode:in the case of wind turbines, it is very difficult to stop therotation of the shaft in one definite position. PRFTECHNIKAlignment laser measuring systems take advantage of gatheringany number of measurement points in any position.

Patented SWEEPMeasurementMode:

Up to 128 readings are automatically collected as the shaft isrotated from any position in the machine operational direction.Shaft rotation restrictions are overcome as only a turn of 60 isrequired for results.

InfiniRange

The detector measurement area is extended to allow alignmentof grossly misaligned machines. This is ideal for long spans, and

eliminates the need for rough alignment, hence the possibility torecord the initial alignment status.

Simultaneous H & VMOVE function:

ROTALIGN Ultra monitors horizontal and vertical feet correctionsimultaneously

Unique selling points

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Windows based common PC software platform

Measurement file & data management

Two-way communication

Alignment job preparation

Colour reports

Import of company logo

HTML report

CSV export

Application related features, e.g.

Shaft: Thermal growth compensation

Customer defined tolerancesMeasurement history

Geometric: 3D result representation and reportingParallelism of planesSurface comparison

ALIGNMENTCENTERPC software

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Targets?

Machines should not be aligned to zero:

depending on the wind condition, the

relative position between gearbox and

generator changes

The 4 shaft alignment parameters for

angular and parallel misalignment:

Horizontal offset

Vertical angularity

Vertical offset

Horizontal angularity

Determining alignment targets

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The PERMALIGN

laser system measures andmonitors alignment changes of rotating machineryduring operation. It measures the absolute move ofa machine or the relative move between coupledmachines.

It provides:

Trend graphs of coupling parameters

in time to determine positional change

from cold to operating condition, and

vice versa.

Polar graphs of coupling parameters to

determine the statistically average

position of the coupling

PERMALIGN

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Target values depending on wind conditions

Polar measurement on wind turbines

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