D400 Manual
Contents
1. not wobble due to wear at the hub Finally check that all fasteners are tight and secure Electrical checks Very often poor turbine performance is traced to a problem elsewhere in the installation rather than a fault with the wind generator itself First check that both the D400 and the regulator are the correct voltage for the electrical system Both items have identification labels showing the voltage typically 12 or 24 volt The most common cause of low outputs is loose or corroded connections in the output cabling Check and re make all connections from turbine to battery Seawater and electricity are not a good combination and connections deteriorate very quickly when wet Next check the turbine by measuring its open circuit voltage Disconnect the unit as close to the turbine as possible If it is not too difficult remove the turbine from its tower and measure at the fly lead cables exiting the yaw shaft of the machine itself With a multimeter set to the 20 volt DC range connect the red positive meter lead to the red output the black meter lead to the black output and spin the unit by hand On a 12 V D400 you should be able to produce 4 5 or even 6 volts depending on how hard you spin If you see voltages in this range then the D400 is probably OK If the D400 has an internal fault such as a missing phase in its alternator then you will not be able to produce more than one or two volts Assuming the output voltage is OK2. A braking switch can be fitted which provides a convenient aid to stopping the D400 The switch should be a double throw break before make type rated at least at 40 amps When operated the switch disconnects the batteries from the D400 before short circuiting the turbine The short circuit slows the rotor blades making it easier to turn the machine out of the wind and to secure the blades Please note the D400 utilises a purpose designed highly efficient axial field ironless alternator This configuration delivers exceptional power outputs coupled with smooth low friction running These attributes are retained to some extent when the braking switch is applied and in consequence the electro magnetic braking effect is not as marked as with other machines of more conventional alternator design In certain conditions the rotor can overcome the braking effect altogether which results in damagingly high currents being produced in the stator windings For this reason the braking switch should only be used to slow the unit prior to manually stopping it It is not a parking switch If the machine is left to run with the braking switch engaged serious damage can occur to the generator Wiring of Braking Switch To D400 Black Connector Block Black PLEASE NOTE Braking switch The braking switch should only be used to slow the unit prior to manually stopping it and securing the airblades with a lashing If the machine is
3. The D400 is also suitable for mounting on a stub tower from stern arches and targas Contact your Dealer or Eclectic Energy Limited for further information Terrestrial Mounting The performance of your D400 will be influenced by the topography of your proposed mounting site The golden rule with wind turbines is to mount them as high as is practically possible The higher the turbine is mounted the more productive it will be This is because Wind speeds reduce steadily as they approach the ground due to the effect of friction between the airstream and the earth s surface This wind shear effect is less marked over smooth surfaces such as the sea and more marked over rough surfaces such as woods or urban areas Obstructions such as trees and buildings also introduce turbulence into the airflow and no wind turbine works at its best in turbulent air Given that low wind speeds and turbulent airflow will greatly reduce the efficiency of any wind turbine it is important to locate the D400 in the clearest fastest airflow possible Aim to mount your D400 at least 8 metres above the height of any surrounding obstruction within a 100 metre radius If this is impractical aim to mount the turbine as high as possible A useful assessment of the quality of airflow at a proposed location can be achieved by attaching a streamer similar to a kite s tail to a pole and letting it fly at the proposed height of the turbine If the streamer flies s
4. example differential rates of heating and cooling between land and sea producing the land and sea breezes which are most marked in the summer These streams of moving air also provide us with an inexhaustible if intermittent energy source A wind generator works by converting some of the kinetic energy in wind stream to electricity Air weighs about 1 2 kg per cubic metre at sea level and kinetic energy is expressed by mass times the square of its velocity Understanding this is a key to appreciating the energy available to wind generators In short the amount of energy available to the wind generator rises dramatically with increasing wind speed Regrettably the reverse is also true In low wind speeds there is very little energy to capture It is important therefore when considering the site of your wind turbine that you choose a site with the highest possible wind speeds In addition the airflow should be as free from turbulence as possible 1 x alternator body 5 x air blades 1 x tail 2 x hub plates 1 x air hub spacer Fasteners 1 x tower liner 1 x nose cone Required for installation Mounting Tower Extension cable Batteries Battery terminals Connection blocks Cable clips Etc Additional system items Regulator Charge splitters Volt and ammeters Tools Spanners Screwdriver Wire strippers Etc Installation Marine Mountings When mounting on a yacht or boat positioning the turbine will be
5. left in high winds with the braking switch engaged serious damage can occur 12 Electrical Installation Single battery bank installation It is recommended that the D400 is hard wired to the battery system In yacht installations the cable should enter the yacht via a cable gland Deck plugs and sockets should not be used as they represent a shock hazard if they accidentally become disconnected The D400 should always be connected to a battery when in use otherwise a dangerously high voltage can be generated For fuse sizes at the output cable see note on page 11 fe Unregulated installation Ammeter If in doubt refer to a competent electrical engineer or the manufacturers Battery Bank Electrical Installation Connect the output cable to the battery bank s using the suggested wiring diagrams for guidance Remember to observe the correct polarity RED to POSITIVE and BLACK to NEGATIVE Twin Battery Bank Installation Voltmeter Battery Bank Battery Bank Where a battery monitor is fitted If your electrical system is fitted with a digital battery monitor it will be driven by a shunt which is typically installed close to the batteries One side of the shunt is connected directly to a battery terminal All other connections are made to the opposite side of the shunt or a busbar associated with it The shunt is most usually co
6. try rotating the yaw shaft where the cables exit whilst continuing to spin the rotor If the voltage varies or disappears as you rotate the yaw shaft the brushes and slip rings require cleaning Equally if the voltage remains steady but the yaw shaft is unduly stiff or squeaks when rotated the brushes and slip rings would benefit from cleaning If the turbine checks out OK on the voltage test suspect the rest of the installation Check each wiring connection for corrosion tightness and security as well as the fuses fuse holders etc lf a regulator bypass switch is incorporated within the installation check that this is wired in accordance with the diagram contained in the D400 regulator instructions Note that a similar switch can be used as a braking switch and the wiring for this is shown on page 12 of the D400 User s Manual Ensure that the two uses of a switch have not been confused Note that the ship s battery monitor is driven by a shunt which will be mounted close to the batteries Ensure the D400 is connected to the non battery side of the shunt If it is not then the D400 output will not be seen by the meter Also the D400 regulator incorporates a charge splitter i e has two outputs If one of these is connected to the service battery bank and one to the cranking battery or windlass battery it is possible that power from the D400 is flowing to them in preference to the service bank Try connecting both regulator positive output
7. 0 to the Tower Remove the tower liner from the D400 s yaw shaft and check it for fit with the proposed mounting tower It is far preferable to discover it does not fit at this juncture rather than when you are actually attempting installation The standard tower liner has an outside diameter of 41 8 mm and is designed to slide into standard aluminium or steel scaffolding tubing with a nominal outside diameter of 48 mm and inside diameter of 42 mm Should the tower liner not fit the tower tube correctly consider sourcing an alternative mount tower or contact your supplier to order an alternative tower liner On no account attempt an installation where the tower liner is a sloppy fit in the tower as this will lead to instability when the machine is operating and could lead to machine damage The tower liner is retained to the yaw shaft by three grub screws Once the machine has been installed the tower liner should be secured by drilling two holes through the top of the tower into the tower liner to a depth of 12 mm with a 4 mm drill finally securing with two No 8 x 12 mm self tapping screws Your D400 is now ready for installation 10 Electrical Connections Connecting cables between the D400 and the battery bank or inverter should be appropriately sized to minimise transmission losses For low voltage machines transmission losses are always a consideration so it is advisable to keep cable runs as short as possi
8. D400 is being used for battery charging we strongly recommend that a regulator is installed as part of the system The regulator s function is to prevent battery damage through overcharging The regulator works by sensing battery terminal voltage and as a pre set upper limit is approached the regulator progressively dumps output from the D400 to a pair of large foil wound resistors where the surplus energy is lost as heat The 6TB regulator unit usually supplied with the D400 incorporates a charge splitter so its two outputs can be connected to two independent battery banks which will be charged simultaneously The regulator will preferentially charge the lower of the two banks first Note each output of the 12 V regulator is protected by a 40 amp blade fuse The outputs of the 24 V regulator are protected by 20 amp fuses The regulator should be installed within 1 metre of the battery bank where possible and the dump resistors mounted horizontally in an area where air is free to pass over them for Cooling See wiring diagrams on pages 13 and 14 Stopping the D400 The D400 is a robust machine and can safely be left operating in most wind speeds However where extreme storm force winds are forecast it is prudent to stop the machine and secure the rotor blades with a rope lashing The D400 can be stopped by gripping the tail and turning the machine out of the wind securing the blades once they have stopped rotating Braking Switch
9. USERS MANUAL Safety Issues e When installing the D400 exercise due care at all times The turbine weighs 17 2 kilograms and is awkward in shape It is best to plan the installation carefully in advance and enlist some help when erecting the machine in order to avoid accidents e Complete as much of the installation procedure as possible at ground level e Choose a calm dry day for your installation if possible e D400 blades are quite sharp particularly on their trailing edges Handle with care e D400 is robustly engineered but contains high energy ferrite magnets that can be dam aged if the machine is dropped or handled heavily e When running particularly if disconnected from the batteries D400 is capable of producing high voltages Caution must be exercised at all times to avoid electric shocks e Always observe correct polarity when connecting D400 to an electrical circuit Reverse polarity connection will result in damage to the wind generator e The D400 must be appropriately fused at all times e Never approach the path of the blades when the machine is operating as severe personal injury could result e Always stop the machine and secure the blades before attempting maintenance e Ensure that all batteries are disconnected when undertaking maintenance mo eo ee eee PLEASE NOTE The D400 is designed to be permanently connected to a Suitable electrical load such as a battery bank dump regulator or invert
10. ble and be prepared to use heavier gauge cable for longer runs Suggested cable conductor cross sectional areas for a 12 volt machine would be 0 10 metres cable 6 8 mm 10 20 metres cable 10 16 mm 20 30 metres cable 20 25 mm For a 24 volt machine the transmission losses are lower Suggested cable sizes would be 0 10 metres cable 2 3 mm 10 20 metres cable 3 5 mm 20 30 metres cable 5 8 mm Note cable sizing is always a trade off between the reduced electrical losses associated with using larger cable and the additional costs and difficulty of the installation The cable sizes recommended above will ensure acceptably high transmission efficiencies Where the D400 is fitted to a tall mounting tower ensure the weight of the hanging cable is taken by a strain relief arrangement within the tower rather than allowing all the weight to hang on the D400 cable connection Fusing The D400 is capable of producing very high currents A line fuse must always be installed in order to protect the D400 This is in addition to the fuses in the regulator output A blade type 50 amp rated fuse and holder is supplied with 12 volt machines A blade type 30 amp rated fuse and holder is supplied with 24 volt machines Note This fuse should be installed between the turbine and the regulator and where a braking switch is fitted the fuse should be installed between the switch and the turbine Regulation Where the
11. e does not affect your statutory rights 20 D400 Wind Turbine Specifications Rated power 235 W 11m s 22 knots 420 W 14 m s 28 knots Maxiumum power 600 W Rotational speed 1100 rom 14m s 2 5m s 5 Knots None Horizontal axis upwind Performance amp Power outputs 3 m A OA gt O D o i S S r O on D O eg L 5 3 5 v D o a D on 5 O o o OD lt OD eS 0 v Q O Oo Cut out wind speed Number of blades Low Reynolds variable camber 1 1m 0 95 sq m Diameter of turbine Turbine features 2 6 dbA over background Blade Glass filled nylon Direct drive axial field 12 pole permanent magnet generator 3 phase AC with rectification Outputs direct current DC Annular high energy magnet rotors Encapsulated stator windings DC 12V 24V 48V 72V AC 240V grid connect via inverter Aluminium alloy housing hermetically sealed Alocrom 1200 corrosion protection and polyester powder coat 316 stainless steel shafts and A4 stainless fasteners Typical noise level Alternator type Design Alternator Voltages available features Materials EMI electromagnetic MCS Accreditation C E compliant D 3 0p O 5 02 Pending Control Stall regulation Electromagnetic braking switch Low resonance formed aluminium tail Heavy duty slip ring assembly with saddle spring loaded output brushes 700mm 50mm 75mm O D Tkg White with w
12. er i i It should never be allowed to run unloaded ie open circuit for more than a few minutes f i i i i In an open circuit condition the D400 will overspeed and very high voltages can be produced There is also a risk of damage to the machine s rectifiers E Contents Safety issues Introduction Features of the D400 Dimensions Output Checklist parts tools etc Principles of wind energy Installation Boats Terrestrial mounting Guyed towers Freestanding towers CO CO NN OO A fF A OO N gt Roof mounting Assembling the D400 Electrical connections Regulation Stopping the D400 Braking switch Electrical installation Circuit diagrams Performance and expectation Troubleshooting Routine maintenance CE Conformity Guarantee Appendix Specifications a Thank you for purchasing the D400 Wind Generator designed and manufactured by Eclectic Energy Limited The D400 is one of the most efficient powerful and well engineered turbines currently available Please read the entire manual thoroughly prior to installation to ensure your personal safety and the optimum performance of the equipment lf you have any questions or uncertainties having read the manual please contact your authorised dealer or Eclectic Energy Ltd for further clarification wr Ta Features of the D400 The D400 has been developed specifically to operate in close proximity to people The n
13. g anti vibration elements are available contact your dealer or Eclectic Energy Ltd for details Assembling the D400 Your D400 is supplied in two cartons Unpack these and check the parts against the list at the beginning of this manual e Assemble the air rotor by sliding together the keys and mortises at the hub of the five air blades e Take the white powder coated hub plate pass two 5 mm bolts and washers through the inner holes and fit the rotor hub spacer over the 5 mm bolt heads e With the body of the wind generator on its back offer the hub assembly up and slide it onto the alternator shaft e Align holes in rotor spacer with 6 mm tapped holes in alternator shaft and secure with two 6 mm button head screws and shake proof washers provided Its is vital that these screws are fitted using a nut grade threadlocking compound to prevent the screws working loose in operation However take care not to overtighten these screws as this can cause the air rotor to run out of true e An aluminium ring is provided to locate the blade roots securely The ring is partially inserted rounded side first into the moulded annular recess on the rear of the blade roots but not pushed fully home at this stage Offer rotor blade assembly up to rotor hub spacer and slide into place e Ensure that the rotor assembly is fitted the right way round The annular groove on the blade roots should face the rear tail end of the mac
14. hine and the face with the 10 conical holes in the blade roots should face forwards e Fit outer stainless steel hub plate place nuts and washers on inner 5 mm bolts and tighten gently e Rotate air rotor in relation to hub until the five blade securing holes align e Pass a 5 mm bolt through the inner powder coated plate such that it passes right through the rotor blade and outer hub plate fitting a washer and nut each time e Finally evenly tighten all fasteners This will push the aluminium ring fully home Note that the rotor should only be secured using new nyloc nuts Assembling the D400 continued e Place the turbine face down on its rotor and attach the tail P using the three M6 nuts and bolts provided Note that the tail should be fitted to the left hand face of the casting flange whe the D400 is viewed from the rear The large stainless steel d washers with the large rubber washers underneath should also be fitted on the left hand side e To fit the nose cone offer up the axial splits in the moulding to the leading edges of the blades while holding the cone square and central over the hub Gently open each of the axial splits and encourage it to pass over the leading edge of the blades e Finally rotate the nose cone anti clockwise such that it effectively screws onto the blade roots Snap the rear edge of the blades slot behind the trailing edge of the five blades see pictures Fitting D40
15. hite blades Black with translucent blades Brake system Passive Yaw System Turning circle Typical stub tower 4 z o A v D 3
16. imum blade to tower clearance omm Freestanding Towers For small wind turbines such as the D400 free standing towers can take the form of old telegraph poles or a self supporting steel lattice tower It is important to ensure the tower s foundation is sufficient such that the tower will withstand a horizontal load of 70 kg at the height of the turbine In order to ensure that an acceptable blade to tower clearance is maintained a stub tower should be used between the D400 and the free standing tower See illustration Roof Mounting Due to its quiet vibration free operation the D400 is particularly suitable for rooftop mounting Mounting on buildings has the advantage of achieving additional height There is also often a localised increase in wind speed due to the compression effect of wind flowing over the ridge of the roof This is particularly true when the prevailing wind is at 90 to the roofline Generally speaking a mount height of 1 5 to 2 5 metres above the ridge line will place the turbine in the best air flow It is important that the building structure and the mounting bracket attachment is sufficiently strong to support the turbine adequately in all wind conditions Despite D400 s quiet low vibration operation the installation may benefit from additional anti vibration mountings to prevent the transmission of vibration into the building structure Eclectic wall mount brackets incorporatin
17. influenced by the configuration of the boat and other equipment fitted It is important to ensure that the blades are at sufficient height such that injury to the crew from rotating blades is unlikely A minimum height of the lowest point of the blades above a crewed area should be 2 4 metres Also ensure that no part of the turbine can come into contact with any other part of the boat s fittings or rigging Because the turbine is subject to dynamic loads when the yacht is in a seaway in addition to wind loads the tower should be securely braced or guyed both fore and aft and athwartships The bracing struts or wires should be firmly attached to the main tower at a point 200 300 mm below the lowest point of the blades The D400 is an inherently quiet and low vibration machine However certain applications may benefit from the introduction of anti vibration mounts under the main tower and bracing struts Note that on a yacht or boat no unsupported tower should exceed 2 5 metres in length The wind loading on the D400 s rotor disc can exceed 50 kg so any tower structure should be designed to allow for a safe working lateral load of 70 kg at the hub height of the turbine Typical yacht mount braced fore and aft For inland watercraft such as narrow boats a hinge down tower arrangement can be utilised to allow for rapid lowering of the turbine for passage under low bridges etc For ketches and yawls a mizzen mount is often suitable
18. mining the blades for signs of damage Blades exhibiting chips or nicks should be replaced 19 4 www eclectic energy co uk CE DECLARATION OF CONFORMITY We declare that this product complies with the following standards directives 89 336 EEC Product description D400 Alternator Model number EE400 Serial number D Signed Wu 3 T A Eclectic Energy Limited Unit 22 Sherwood Networkcentre Sherwood Energy Village Ollerton Nottinghamshire United Kingdom 44 0 1623 835400 NG22 9FD PRP RRB RRR RRR RRR RRR RR RR RRR RRR RRR RRR RRR ee eee SEE EREEEREEREREEREEEREEREBEEREEREREEREBEEREEEREEREBEEREEBESE BG BERR RRR RE RRR RRR RR eRe eee eee eee NN GUARANTEE The D400 Wind Generator is guaranteed against faulty parts and manufacture for a period of two years from date of purchase The unit should be returned in the first instance prepaid to your supplier Eclectic Energy Ltd Unit 22 Sherwood Networkcentre Sherwood Energy Village Ollerton Nottinghamshire United Kingdom NG22 9FD Damage caused by mishandling faulty installation or accident is not covered Eclectic Energy can not be liable for damage caused by the D400 in the event of accidental contact incorrect installation or insufficient care However Eclectic Energy Limited is committed to provide after sales care as fully and efficiently as possible in order to support our customers This guarante
19. ng a whistling noise The D400 will frequently turn off the wind rotating through 360 on occasion Check all wiring looking for poor or broken connections Also check fuses If the fault remains bypass the regulator to rule out regulator malfunction as the cause of the problem Intermittent or occasional erratic yaw action this could be due to an intermittent electrical fault If you observe turbine output abruptly dropping out and then suddenly returning this could indicate a poor connection between the brushes and slip rings To service remove the four self tapping screws that secure the black brush holder plate Remove the brush holder plate taking care not to displace the brushes or brush springs The slip rings and contact faces of the brushes can then be cleaned with a solvent soaked cloth or fine wet and dry paper Squeaking or grating noises audible in yaw this could be caused by damaged yaw bearings More typically it is caused by dirt or corrosion on the slip rings brushes Remove the brush plate as above If noise is still present with the brush plate clear of the housing suspect yaw bearings If the squeak has gone it confirms the noise emanates from the brush and slip ring assembly Clean these parts as in the last section Also using a fine file remove any sharp edges from the contact surfaces of the brushes On re assembly the yaw shaft should rotate silently If a squeak is still evident remove the brush
20. nical friction falls to its design level As a result your D400 may seem a little slow to respond in light winds until this running in period has passed Before deciding that your D400 is faulty please work through the troubleshooting guide on page 16 In our experience the vast majority of problems reported prove to be faults in the installation rather than a problem with the turbine itself Please feel free to contact your dealer or Eclectic Energy Ltd if you require additional advice or guidance 15 D400 Troubleshooting Points to check if you think there s a problem Mechanical checks Spin the blades by hand they should rotate smoothly and freely with no hard spots Listen for any grinding scraping or rumbling noises these would indicate failed bearings or contact between rotating parts inside the alternator Note if the rotor rotates smoothly and silently but feels stiff like turning something in glue refer to the electrical section on short circuits Next try rotating the D400 around its yaw axis Again it should turn smoothly and freely with no hard spots If the yaw action is stiff or accompanied by undue noise suspect the yaw bearings or the bush and slip ring assembly see electrical section below Check that the blades are fitted the right way round with the concave surface facing forward i e towards the wind Also establish that the hub is secure on the alternator shaft and that the rotor does
21. nnected in the negative line When wiring the D400 to a system fitted with a shunt observe polarity and connect the appropriate D400 output cable to the non battery side of the shunt Again observing polarity the other D400 output cable should be made directly to the battery terminal The D400 s output will now pass through the shunt and the battery monitor will display a reading If the shunt is bypassed by connecting both positive and negative output leads from the D400 directly to the battery the meter will fail to see the D400 and register no output For fuse sizes see note on page 11 The D400 is fitted with 4 5 mm output fly leads Refer to page 11 for suggested connection cable sizes 14 Performance and expectations The D400 is extremely efficient by design making it the most powerful and productive wind generator of its rotor size currently available The D400 should perform in line with or exceed the values given in the output graph When verifying system performance it is important that wind speed measurements are taken at the same height as the turbine do not rely on the wind speed reading of a mast head anenometer it can be TWICE the speed of the wind at the turbine Note that the batteries should be at least 40 discharged Note also that if a regulator is installed as part of the system dumped output will not be seen by shunt sensed battery monitors Should outputs be well below ex
22. oise and vibration usually associated with small wind turbines has been designed out of the D400 This has been achieved by making the turbine run relatively slowly for a given electrical output In a given wind speed and a given electrical output the D400 rotates at less than one quarter the speed of some competitor units Combined with its rugged engineering and advanced computer designed air blades this makes the D400 the most reliable and benign turbine of its class currently available The air blades are precision injection moulded from glass reinforced nylon and as well as featuring taper and twist incorporate a special low Reynolds airfoil section which varies continually in camber from tip to root Because of the production method used the blades are extremely consistent in terms of mass and can be replaced singly should damage occur without losing turbine balance The alternator and yaw shafts are precision ground from 316 grade stainless steel and the D400 s body is a robust aluminium alloy casting The bearings are high quality and generously sized and are protected by twin lipped radial shaft seals The tail is formed from aluminium sheet into a shallow S section in order to impart stiffness and prevent resonance All aluminium parts are etched alachromed and finished in a tough polyester powder coat The D400 utilises a 12 pole 3 phase axial field alternator of very high efficiency It comprises two large annular magnet
23. pectations first suspect turbulence in the wind stream Turbulence at a given site can be specific to a particular wind direction where it is caused by an obstruction either up or downwind of the turbine When the wind direction changes and the obstruction is no longer in line with the turbine outputs may return to expected levels If the turbulent wind stream is not from the prevailing wind direction this may not be important Alternatively the D400 could be re sited or raised in height If poor output cannot be attributed to site conditions re check the whole installation against the wiring diagram and also look for poor or loose connections Check that the relevant connection from your D400 to the batteries is made to the non battery side of the battery monitor shunt If the connections are made direct to the battery terminals bypassing the shunt the ship s battery monitor will not be able to read the D400 s output Note where batteries are in a good state of charge power diverted by the regulator to the dump resistors will not be seen by the battery monitor Finally ensure that the battery bank is in good condition Check individual battery terminal voltages within the bank Defective cells within a battery bank are a common cause of poor charging performance Note that there is a short period of running in with a new wind turbine The bearings and shaft seals of a new machine take 40 50 hours of operation before mecha
24. plate again and spray the slip rings and brushes with an electrical lubricant WD40 or similar or smear a little silver loaded grease on the slip rings 17 Undue mechanically transmitted noise or vibration Noise or vibration transmitted down the shaft suspect a loose rotor Grasp an blade and rock the rotor to check if there is any relative movement between the rotor and the alternator shaft If play is felt remove hub parts and re build fitting a new hub centre Correct fit of nose cone check that the nose cone is not catching on the alternator housing Blade damage check that the blades are not damaged or chipped This may put the rotor out of balance Replace blades as necessary Tail bolts check tail bolts are tight Noises from the alternator rotate the blades slowly and listen at the alternator housing Grating or scraping noises indicate a fault within the alternator Refer to your dealer or Eclectic Energy Limited 18 Routine Maintenance The D400 is robustly engineered and should give years of trouble free service Bearing life in normal windspeed conditions is expected to be in excess of 10 years Shaft seals may benefit from replacement after five years The yaw bearing brushes should not require replacement during the life of the machine The alternator itself is hermetically sealed against moisture ingress Routine maintenance would consist of periodically exa
25. rotors with stator coils positioned in between The stator coils themselves are wound from heavy gauge copper and are encapsulated in a heat conductive resin This in turn is bolted to a machined shelf within the aluminium housing so ensuring excellent heat dissipation from the machine A combination of the advanced air blade and alternator design delivers unparalleled efficiency in low wind speeds together with the ability to produce sustained high outputs in high winds Eclectic Energy Ltd s attention to design and quality should ensure your D400 gives years of trouble free service Congratulations on your purchase Amps 12 V Dimensions output 320 mm a 42 mm ID tube Turning Circle 700 mm Rated outputs 225 watts at 11 m s 400 watts at 16 5 m s D400 Wind Generator Output 5 10 15 20 25 30 35 40 Wind speed in knots All performance figures are indicative Actual outputs may vary E amp OE Checklist Check that you have received in your delivery two cartons containing The principles of Wind Energy Wind is a function of solar energy unevenly heating the Earth s surface As warmer air rises at the equator cooler air flows in to replace it setting in train global convective currents This circulation which we call wind distributes both heat and moisture more evenly around the earth so providing us with a comfortable planet to inhabit The same process of convection also happens more locally for
26. s together and on to the service bank to see if that improves matters Finally put a dedicated ammeter in the positive line between turbine and regulator This should read all current from the D400 including any diverted to the regulator dump loads 16 Trouble shooting continued Poor Yaw Action Stiffness in yaw the D400 will not rotate to face the wind check for any physical obstructions and the action of the yaw shaft If the yaw shaft does not rotate freely suspect damaged or corroded yaw bearings damaged or corroded slip rings brush assembly or possibly a bent yaw shaft Erratic yaw action the D400 turns off the wind and is unstable the D400 is normally very stable in yaw If the turbine appears to hunt around its axis this could be due to turbulence in the airflow If so the problem should disappear when the wind changes direction or the yacht is in a different location Check that the D400 is properly secured to the mount tower There should be no undue play between the turbine and the tower Also ensure that the tower is vertical and sufficiently rigid If the tower is too flexible and bends excessively under wind loading it should be braced or guyed to stiffen it Open Circuit this is a major cause of poor yaw action indicating that the turbine is not properly connected to the batteries in this open circuit condition the rotor will over speed and the blades will become uncharacteristically noisy emitti
27. traight the airflow is clear If the streamer flutters and spirals turbulence is present and you should consider an alternative site Mounting towers can be either guyed or free standing Free standing towers need to be very substantial and require either a screw pile or concrete foundations They are therefore generally expensive Guyed towers are the more usual choice Guyed Towers A typical guyed terrestrial mount for a D400 would consist of a tubular tower supported by four or more guy wires No more than 2 metres of the tower should extend above the upper guy wire attachment point The guy wires themselves should be of at least 4 mm in diameter with a breaking strain in excess of 50 kg They should be galvanised or stainless steel for protection against the weather Shackles and bottle screws should be at least 5 mm in diameter and where guy lines are looped the loop should be held with a minimum of 3 wire rope grips and should incorporate a thimble to form the eye Guy wire radiuses should be observed The recommended radius for the guy wire anchors is 0 6 of the tower height Four guy wires are preferable to three as this enables the tower to be hinged up from its base with three guy wires already in place to support the tower as it ascends Hinged tower in normal operating position Hinged guyed tower in lowered position for maintenanace or severe storm condition i n sa ae 5 ce Correct use of Stub Tower Min
Download Pdf Manuals
Related Search