Focus on

Wind Turbines

LINAK.COM/TECHLINE
WIND-AUTOMATION.COM

2Improving energy efficiency

Global warming and the drive to minimise greenhouse gas emissions has put the focus
on how to make the most of natural energy sources. The sun and the wind are freely
available almost everywhere in the world and electric actuators can help improve theexploitation and efficiency of these sustainable sources of energy.
Why wind turbine automation
Wind turbines are mostly located in rural hard-toreach areas. Offshore wind turbines
are such an example. Placed in the middle of the sea, operation stability and ease ofmaintenance becomes important parameters to keep cost down and efficiency up.
The well-proven reliability and long maintenancefree lifetime of LINAK® actuators evenunder extremely rough conditions make them particularly well-suited for wind turbines.

Intelligent actuators from LINAK help
open access gates, hatches and lubrication systems on wind turbines andensure safety around brakes, locks andventilation.

Compared to a hydraulic solution an electric actuator system has some advantages. They:• are user-friendly• are environmentally safe - no leak from oil• have built-in electrical feedback• take up less space in the nacelle• have lower total cost, no pipes and pumps, only cables
LINAK has been a supplier to the wind turbine industry for the past 15 years. As a result,the company possesses a deep pool of knowledge about wind turbines and how they
are designed and built. Based on specific applications, with which we have enjoyed great
success, and on the basis of numerous studies, LINAK is in a position to take on the role
as your knowledgeable partner.

LINAK offers service
worldwide
Please contact your local LINAK office withyour enquiry3

A world of movement & opportunities
for big wind turbines
LINAK® knows the market, and LINAK knows the opportunities wind turbine
manufacturers have for using LINAK solutions.
In cooperation with our customers we have developed solutions for service situations
with automatic opening of all sorts of access gates, hatches and emergency lubricating
systems. Electric actuators are also used for a number of safety applications like rotor
brakes, rotor locks, wing locks and ventilation systems in both the nacelle and thetransformer unit.

Access hatch
Hatches that are opened electrically provide
fitters and technicians with easier access.
At the same time, it can be a safety
precaution to avoid unintended access.

4Rotor lock
The actuator solution is very powerful, and therefore
very suitable for rotor lock applications.
The service technicians can lock the rotor electrically.

Natural ventilation/cooling
LINAK actuator solutions ensure naturalventilation of the nacelle to keep the usage ofthe costly air cooling system at a minimum. Bymeans of sensors the hatches will be closed if
it snows or rains. A variety of feedback systems
can be mounted on the actuator to make surethat the wind turbine control systems knowwhether the systems are on or off.

5LINAK the perfect partner

LINAK® is your partner for electrical movement in small WindTurbines. We provide the movement without using hydraulics.
It is not necessary to use any pumps, there are no leaks fromhydraulic oil, and the force we can provide is enough to offer
reliable control, brake and service solutions for an optimal
working environment for technicians. LINAK actuators arealso equipped with feedback signals.
In our own test facilities, we can simulate the most extremesituations. We apply modern and advanced methods to ourproduction, and we monitor all processes closely to ensurethat we maintain a very high level of quality.

6Service hatch
Hatches that are opened electrically provide
fitters and technicians with easier access.
At the same time, it can be a safety precaution
to avoid unintended access.

Brake
They ensure a good and stable breaking of
the Wind Turbine.
Signal trasmitters can provide feedback as
to whether the brake is activated or not.

7

Explore the rich technology behind actuators

At the Actuator Academy™, you will find a library of videos and information about actuator
components, actuator testing, and intelligent actuator control.
Find out what you should expect of a good industrial actuator, what affects its performance andefficiency, and how to best utilise your linear motion actuator.
We hope to inspire you and ultimately make you wiser on the moving electric revolution weare all part of.
Happy exploring!

Check out theActuator AcademyLINAK.COM/ACTUATOR-ACADEMY

8Smart movement for wind turbines

A LINAK® IC actuator with built-in controller
reduces the number of external components
and the need for a third-party supplier forpower electronics.
It also offers a comprehensive range ofinterfaces and gives you access to productivity
enhancing data - all delivered by a single
supplier you can trust.
By helping you move smarter at every stage ofyour application process, from development,
installation and integration to tailored
movement and improved productivity, ourIC actuators add value across the board.

Choosing an IC actuator for your application is a smart move inmany ways:• Reduced complexity for faster development and production• Flexible integration with a variety of industrial interfaces• Data monitoring that minimise downtime and boost productivity

For more information on IC,
please visit LINAK.COM orscan the QR code.

• Benefit from one single supplier

9Actuators for wind turbines

Operating temperatures between -40oC to +85oC make them fit
for work in numerous settings.

LINAK® industrial actuators offer a versatile array of movement
solutions for wind turbines.
With thrusts up to 15,000 N, max speeds up to 160 mm/s,and strokes between 20 and 999 mm, the actuators are highly
adaptable for a wide variety of applications.
Industrial actuators with heavy-duty aluminium housings are very
suitable for use in corrosive environments. Having been thoroughly salt
spray and chemical resistance tested and approved for ratings up toIP66 and IP69K static, these actuators will work reliably for years,
even when exposed to salt, water, wind, and sun.

Actuator LA37

10Actuator LA36

Actuator LA35

Actuator LA33

Actuator LA25

Actuator LA14

Actuator LA12

Robust and powerful
LINAK® products are reliable products, made tolast! High quality is the trademark of LINAK, and anelement of the highest importance to us.

11Accessories for wind turbines

12

Motor controller TR-EM-208- Complete control

Rocker switch- easy operation• Variable power supply 12-35 V DC
• Overload protection - adjustable current
limit 1-20 A• Adjustable soft start and stop
• Integrated brake(*)• For all actuators with limit switches• Easy operation of actuators without
use of further electronics• IP66 for outdoor use• Easy to install• Tested with an LA36 12 V DCfor 50,000 operations(*)

Bellow protective

LSD for LA30

• Gives a better protection and therefore an
increased liftetime of the actuator• Protects the inner tube against dust and dirt
• Can be used for the actuators: LA22, LA28,
LA30 and LA32
• Does not influence the the IP rating• Available in black(*)• Individually adjustable microswitches• Weather resistant design in anodised aluminium,
rubber and stainless steel• The microswitches cut off the current to the motorin end position and have diodes for return stroke• The LSD system is factory installed• Storage temperature: -40°C to +70°C(*) “The specified product is a third party product that is produced by third party and distributed by LINAK as a supplement to LINAK´s existing product range.
It is the responsibility of the product user to determine the suitability of the product for a specific application.
LINAK will at point of delivery replace/repair defective products covered by the warranty if promptly returned to LINAK.”
If you use IC there is no need for these accessories!

13Testing programme

In each industrial application, the actuator is just one
component of many, but at LINAK® we fully appreciate that
it is of utmost importance to you and your customers. Nota single actuator leaves the factory until it has undergone a
100% function test.
Depending on the actuator type, various tests have been
carried through. Please consult your local LINAK office or takea look at the actuator data sheet in question to get a thoroughtest overview.
This is your guarantee that a solution based on LINAKTECHLINE electric actuator systems is a solution that will work
reliably for years and years.

Climatic tests:

14“Our actuators must never malfunction.
Therefore, it is important that all our products
are tested inside and out, and to the extreme
in a wide range of tests.”

In the climatic test the actuators are tested to operate in extreme
temperatures as well as to endure rapid changes in temperature.
In a dunk test, the actuators have to withstand repeating temperature fluctuations between +85oC to -40oC and still maintain fullfunctionality and ingress protection.

- Claus H. Sørensen, Director R&D

EN60529-IP6X- Dust
EN60529-IPX6- Water
ISO16750- IP69K- High pressure cleaning
IEC60068-2-3- Moisture storage
IEC60068-2-30- Operation in moisture
ISO16750-4:2010- Dunk test
EN60068-2-52- Salt spray
BS7691 Section 6.11.2.4 - Chemicals

Electrical tests:

Mechanical tests:

All electrical parts are tested i.e. power supply, power and signals
cables, control signals etc. Electrical immunity is tested according toindustrial standards i.e. for radio noise, electrical discharge and burst.*

Vibration: The actuator must withstand continuous
vibration in three directions.
Shock: The shock test puts the actuator through3 shocks of up to 50 G in each of six directions.
Bump: The actuator receives bumps of up to 30 G
in each of six directions several hundred times.

EN/IEC 61000-6-4
EN/IEC 60204
EN 50121-3-2
94/25/EC
EN/ISO 13766
EN/IEC 61000-6-2
2004/104/EC
EN/ISO 14982
EN/ISO 13309- Generic standard emission industry- Electrical equipment of machinery- Railway applications - Rolling stock apparatus- Recreational crafts directive- Earth moving machinery- Generic standard immunity industry- Automotive Directive- Agricultural and forestry machines- Construction machinery* These tests do not apply to third party products!

EN60068-2-64 (Fh) - Random vibration
EN60068-2-27 (Ea) - Shock
EN60068-2-29 (Eb) - Bump

Find out more about how we test
actuators to the extreme:linak.com/segments/techline/tech-trends/
testing/15

For further information, please visit our website:

LINAK.COM/BUSINESS-AREAS/ENERGY/WIND-ENERGY/LINAK® accepts no responsibility for possible errors or inaccuracies in catalogues, brochures, and other material. LINAK reserves the right to change its products without prior notice. LINAK cannot guarantee product availability andreserves the right to discontinue the sale of any product. User is responsible for determining the suitability of LINAK products for a specific application. All sales are subject to the ‘Standard Terms of Sale and Delivery’, available on
LINAK websites.
LINAK and the LINAK logotype are registered trademarks of LINAK A/S. All rights reserved.

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