User Manual - Leading Edge Turbines
Contents
1. 0 30 0 LED Indicators e Standby Mode when first powered up o both LEDs blink simultaneously every 7 seconds e Charging Mode o bulk green blink long delay green blink o absorb green blink short delay green blink o float green solid o dumping red solid when duty cycle gt 0 Tel 44 0 1981 241668 Skyrrid Farm Pontrilas Hereford HR2 OBW UK www leturbines com Page 23 of 28 Leading Edge Appendix 2 Run Stop Switch User Manual Only operate in light winds Tel 44 0 1981 241668 Skyrrid Farm Pontrilas Hereford HR2 OBW UK www leturbines com Page 24 of 28 d Leading Edge Introduction Please read this manual thoroughly before attempting to assemble install or operate your Universal Run Stop Switch This will assure optimum performance and safety The Universal Run Stop Switch is designed to allow the user to dynamically brake a LE v50 turbine or LE v50 turbine at will This is achieved by disconnecting the power output of the turbine from the relevant load and diverting it to a short circuit which then applies the dynamic braking effect on the permanent magnet alternator of the turbine This will bring the turbine to a near stop for maintenance only The Universal Run Stop Switch can be used with turbines of different manufacture as long as the relevant turbine has the following characteristics 3 Phase Wild AC not exceeding 500 V amp 16 A Wild DC not exceeding 150 V amp 10 A M2. your warranty entitlement Please register at www leturbines com support warranty registration Customers are required to keep an original copy of their invoice should questions arise requiring reference to purchase information Tel 44 0 1981 241668 Skyrrid Farm Pontrilas Hereford HR2 OBW UK www leturbines com Page 2 of 28 d Leading Edge Read this first 1 Don t connect the wind turbine in the wrong polarity Make sure you connect the ve of the turbine to the ve of the battery red to red and the ve of the turbine to the ve of the battery black to black Failing to do so will damage the equipment and invalidate your warranty 2 Don t allow the turbine to run without being connected to the battery Failing to do so will result in the turbine freewheeling causing premature wear and tear and unnatural blade noise Yui http youtube com c LeadingEdgeTurbines Visit our YouTube channel for assistance in wiring up the equipment configuring the DL 300 and run stop switch and more Tel 44 0 1981 241668 Skyrrid Farm Pontrilas Hereford HR2 OBW UK www leturbines com Page 3 of 28 d Leading Edge Introduction Please read this manual thoroughly before attempting to assemble install or operate your LE v50 small wind turbine This will assure optimum performance and safety The LE v50 turbine features an array of innovations and construction techniques as well as heavy duty engineering to ensur
3. CL axsing Edge LE v50 amp LE v50 Extreme Turbine Installation amp Operation Guide A micro vertical axis turbine for trickle charging and low power applications Leading Edge Turbines Ltd Tel 44 0 1981 241668 Skyrrid Farm Pontrilas Hereford HR2 OBW UK www leturbines com Page 1 of 28 d Leading Edge Contents CONTENTS aianei na a eae a 2 Read this SINS s2asczadadsosrans sccsedad ieasunea E EE 3 litro ductiO Misisipa aaan aei naa aaiae 4 Safety Precautions sronoonir nin an a EA EA A E A 5 Speciticati MS srecnsenae inn a EEE E E NER 6 Packape COnteNtS noii a E E wa eraed eee awe 7 To ls Required F r Assemb l sccercteeaseccsncsecccnseistatscnsretntenseiiesnnsneucngesnincseenaiteeiquenuaneds 7 Mechanical Assembly Proce Gut Gs ics ecasintasnceudexdasscbicanaenndshsasancsdadaalenbeaastndesaatessieandaanes 8 Electrical InstallatiO Meersman EAEE 1i Turbine Operati Nesri mno EEE EN 14 MaintenanGE lt cesizeeicaccSesranscetetastracesonsrens AE TEA 15 SPANOS sassasvicesccdatsdacavacacsteateavsnes dean E E a E o aaa RE 16 WarnraMty esain a R ENa 17 DVS NANI sarino desta ee icc nee teen pa a anina cnc eb aT a aiea a a ASe ITa iei 18 Appendix 1 DL 300 Charge Controller User Manual csscccccssseeceesssteeeeesseneees 19 Appendix 2 Run Stop Switch User Manual ccissscccssesssscsesssccassasatesstesstesensaecnesscnecnees 24 Warranty Registration Please register your product with us so that we can administer
4. Due to the low Tip Speed Ratio of the turbine the turbine output decreases naturally as the battery voltage increases this provides a natural form of charge regulation However in extreme wind environments such as arctic conditions and special systems it is possible to install a DL 300 charge controller See Appendix for more information e Hybrid Systems The LE v50 turbine can be used in parallel with PV panels We recommend that the PV panels are wired independently with a separate charge controller specifically designed for use with them and connected in parallel with the battery bank Please refer to the following wiring diagrams as a guide Tel 44 0 1981 241668 Skyrrid Farm Pontrilas Hereford HR2 OBW UK www leturbines com Page 12 of 28 d Leading Edge LE v50 Turbine VE VE Transmission Transmission Cable Red Cable Black Battery Bank wired to the appropriate voltage and capacity Fig 6 Simple Stand Alone battery charging wiring diagram Tel 44 0 1981 241668 Skyrrid Farm Pontrilas Hereford HR2 OBW UK www leturbines com Page 13 of 28 d Leading Edge Turbine Operation The LE v50 turbine is based on a simple design for ease of installation and reliable operation You may notice the following behaviour during normal operation e Cut in The turbine will not begin to charge the batteries until the rotor is spinning at approximately 120 RPM Whilst operating below this spee
5. also operates at these voltages At these high voltages there are significant risks Caution should always be used when connecting an LE v50 or other equipment to the electrical system Tel 44 0 1981 241668 Skyrrid Farm Pontrilas Hereford HR2 OBW UK www leturbines com Page 25 of 28 Leading Edge Ensure that you have followed the cable sizing guidelines to ensure that the correct size of cable has been selected If a cable of insufficient cross sectional area is used at any point in the electrical system heat will build up in the cables causing a potential fire hazard A properly sized fuse or circuit breaker should be used in the cables connected to the battery This will stop the risk of short circuit currents Batteries used in renewable energy systems can deliver a serious amount of current A short circuit in the battery circuit can lead to hundreds of Amps flowing through the battery cables This will cause a heat build up and ultimately an electrical fire Batteries are also susceptible to exploding when shorted Always use insulated electrical tools when working on the battery s electrical connections Batteries are very heavy Do not attempt to move batteries by yourself Always use manual handling tools and an assistant Always keep lead acid batteries the correct way up Do not allow the acidic electrolyte to spill or come into contact with your skin or face Always follow the manufacturer s safety instructions when handlin
6. and or control equipment e Damage caused by the neglect of periodic maintenance in the manner recommended in the installation manual e Damage caused by repair or maintenance performed using methods not specified by LET or by non authorised dealers of LET products e Damaged caused by the use of non genuine parts or from the use of liquid agents or lubricants in or on the turbine tower or control equipment e Damage caused by operating the turbine in conditions outside of those specified in the Owner s Guide including but not limited to allowing the turbine to run while disconnected from the batteries or not configuring the Tristar charge controller for diversion mode e Damage caused by modifications to the turbine tower or control equipment not approved by LET e Damage caused to the turbine tower and control equipment by improper storage or transport e Damage caused by lightning strikes flooding fire etc e Damage due to extremely high winds and storm conditions 27m s 60 mph e Damage caused by flying debris e Damage to batteries due to excessive deep discharge short circuiting excessively high load over charging loss of electrolyte or any condition outside of the manufacturer s specification for battery use e Damage occurring as a result of not operating the turbine at a safe distance from individuals or property e Damage caused by unsatisfactory tower support structure design e Damage caused by incorr
7. blems caused by unsafe or unsatisfactory installation or operation Designed amp Manufactured in the UK by Leading Edge Turbines Ltd Skyrrid Farm Pontrilas Hereford HR2 OBW Tel 44 0 845 652 0396 www leturbines com Compliant with EN BS 61400 2 Safety of Small Wind Tel 44 0 1981 241668 Skyrrid Farm Pontrilas Hereford HR2 OBW UK www leturbines com Page 18 of 28 4 Leading Edge Appendix 1 DL 300 Charge Controller User Manual Tel 44 0 1981 241668 Skyrrid Farm Pontrilas Hereford HR2 OBW UK www leturbines com Page 19 of 28 d Leading Edge Introduction This product is used where the LE v50 is being used on extremely windy sites and there is a danger that the turbine could over charge the battery Please read this manual thoroughly before attempting to assemble install or operate your DL 300 Charge Controller This will assure optimum performance and safety The DL 300 Series Dump Controller and Load is an integrated solution designed to prevent 12 or 24 Volt batteries from overcharging It is designed to be used with small wind systems operating an LE v50 turbine Compact and easy to install the DL 300 incorporates a 300 Watt resistor heater and controller board in a stout powder coated steel enclosure Operation amp Specification As the LE v50 turbine charges the batteries the State of Charge SOC and battery voltage will rise Once the batteries reach full capacity the dump load contr
8. closure 18 gauge mild steel powder coated black Circuit board FR 4 1 6 mm 0 062 in double sided plated through holes solder mask silk screen gold plating Hardware stainless steel zinc plated steel aluminium and Nylon Tel 44 0 1981 241668 Skyrrid Farm Pontrilas Hereford HR2 OBW UK www leturbines com Page 20 of 28 Leading Edge Safety Precautions Safety must always be your primary concern during the assembly installation and operation of your LE v50 turbine and DL 300 charge controller Always be aware of the risks involved with mechanical and electrical installation work If in doubt about any issue regarding your turbine system please seek further assistance before proceeding Mechanical Safety Hazards Whilst installing the DL 300 charge controller or when performing routine inspection or maintenance always stop the turbine by activating the stop switch Electrical Safety Hazards The LE v50 generates rectified DC voltage and the DL 300 controller also operates at these voltages Even at these low voltages there are inherent risks Caution should always be used when connecting an LE v50 turbine or DL 300 controller to the electrical system Ensure that you have followed the cable sizing guidelines to ensure that the correct size of cable has been selected If a cable of insufficient cross sectional area is used at any point in the electrical system heat will build up in the cables causing a potential fire haza
9. d the lubrication to be distributed correctly around the bearing raceways and ball cages During this period you may notice a reduced performance caused by the additional friction of the bearing seals In operating temperatures of 10 degrees Centigrade or lower this pedding in period will be extended by a further 50 hours of normal operation Connect a digital multi meter to the positive red and negative black output leads extending from the rear of the turbine With the multi meter set to detect DC Volts O 20V a voltage should be displayed when the main rotor is spun by hand This voltage will vary with the speed of rotation If no voltage is detected whilst turning the rotor please contact your dealer immediately Upper Stub Shaft Fixings Upper Stub Shaft Fixings ee Fig 4 Checking main rotor rotation and voltage output Tel 44 0 1981 241668 Skyrrid Farm Pontrilas Hereford HR2 OBW UK www leturbines com Page 8 of 28 4 Leading Edge 3 4 Remove the turbine from the transit packing Use a pair of 13mm A F spanner and or ratchet to remove the M8 fixings from the transit base board Fix the turbine in its mounting Position With the turbine removed from the baseboard it can now be fitted in its intended position The LE v50 is supplied as standard with two universal flat mounting brackets Dimensions of the brackets can be found below in fig 5 Alternat
10. d the turbine will be off load and freewheeling Once the turbine output voltage becomes equal to the nominal battery voltage at around 120 RPM the turbine will come on load and begin to deliver current to the batteries During the off load stages of rotation the rotor blades rotate very freely This allows the rotor to build up speed and allows aerodynamic lift to be generated by the blades e Normal Operation Once the rotor is spinning at 120 RPM current will be delivered to the batteries As the rotor speed increases so too will the current and voltage e Shut Down If Run Stop switch is fitted A run stop switch is not required with the LE v50 turbine but one can be installed if desired see appendix 2 By activating the stop switch the output cables of the turbine are shorted together This effectively puts an infinite load on the generator causing the turbine to stall When the stop switch is activated the turbine may still rotate slowly during high winds but the rotor blades will not be able to build up any significant speed It is not recommended that the stop switch is activated whilst the rotor is spinning at high speed This sudden braking action will stress the blades and other components Only activate the stop switch during a lull when the rotor is not spinning excessively fast e High Winds Every effort has been taken to ensure that the LE v50 will withstand the forces exerted by strong wi
11. e from Leading Edge Turbines LET carries a two year warranty as supported by a retailer s receipt The warranty starts from the date of installation or ninety 90 days after shipment from the LET factory whichever comes first LET will supply non wearing parts at no cost For minor component failures replacements may be sent directly to the customer dealer for replacement by them For more serious defects we may suggest a return to base arrangement for replacement or repair In these cases the purchaser will be responsible for taking the turbine off the tower mast and paying the return carriage costs Where a turbine is to be replaced it must be returned to LET before the replacement unit is despatched Should the product prove to be irreparable LET reserves the right to substitute an equivalent product if available This warranty does not extend to servicing a faulty turbine on location In all cases LET will take reasonable action to ensure customer satisfaction You should always receive a warm courteous service in or out of your warranty period Your turbine must be installed and operated in accordance with the guide Failure to do so will result in this warranty becoming null and void Any unauthorised modifications to the turbine design will void the warranty and may compromise the safety of the machine What is not covered by your warranty e Damage caused by unsatisfactory installation of the turbine tower
12. e optimum efficiency and a long operating life The LE v50 has been designed to be simple economic durable and yield excellent performance Specific LE v50 turbine features e nnovatively designed axial flux alternator using neodymium iron boron magnets e Bearing support at both ends of the savonious rotor to provide stability and longevity e Maintenance free low friction bearings e Silent operation e Easy installation e Simple design for low cost and durability e Fully marinised using stainless steel fixings and anodised aluminium components e Low mass to help reduce exerted forces and ensure easy installation LE v50 has been designed to for both land based and marine environments Thanks to its unique design the LE v50 will suffer minimal corrosion in both normal and salt water operating conditions Applications include e Marine trickle charging e Data logging acquisition and environmental monitoring e LED lights e Data communications e CCTV cameras Tel 44 0 1981 241668 Skyrrid Farm Pontrilas Hereford HR2 OBW UK www leturbines com Page 4 of 28 Leading Edge Safety Precautions Safety must always be your primary concern during the assembly installation and operation of your LE v50 turbine Always be aware of the risks involved with mechanical and electrical installation work If in doubt about any issue regarding your turbine please seek further assistance before proceeding Installation of the LE v50 t
13. echanically and electrically capable of dynamic braking Operation amp Specification The Universal Run Stop Switch should be operated during low speeds as repeated use at high speeds may cause damage if the turbine head it was not designed to withstand repeated dynamic braking operations The switch has two positions Position 1 Turbine Stop position The turbine is dynamically braked and may be seen to rotate very slowly Position 2 Turbine Run position The turbine output is allowed to flow straight through the switch to the relevant output Safety Precautions Safety must always be your primary concern during the assembly installation and operation of your turbine and other associated equipment Always be aware of the risks involved with mechanical and electrical installation work If in doubt about any issue regarding your turbine system please seek further assistance before proceeding Mechanical Safety Hazards Whilst installing the Universal Run Stop Switch ensure that the turbine is suitable restrained and not allowed to operate during the installation Electrical Safety Hazards The LE v50 generates rectified DC voltage and the Universal Run Stop Switch also operates at these voltages Even at these low voltages there are inherent risks Caution should always be used when connecting the LE v50 or other equipment to the electrical system The LE v50 generates high voltage AC and the Universal Run Stop Switch
14. ect connection to external electrical equipment or failure to observe current regulations concerning connection to external electrical networks equipment or any other devices Tel 44 0 1981 241668 Skyrrid Farm Pontrilas Hereford HR2 OBW UK www leturbines com Page 17 of 28 d Leading Edge If you should experience a problem with your turbine your first port of call should be the reseller or installer from whom you purchased the product They should be able to resolve the problem quickly and efficiently If you are unable to contact the original reseller then please contact us directly Please quote the serial number of your turbine when dealing with warranty issues The serial number can be found on the nameplate positioned on the underside of the chassis Disclaimer e All specifications are subject to change without prior notice e The information given in this user manual is believed to be accurate and reliable Leading Edge Turbines assumes no responsibility for omissions or inaccuracies e The user of this information and product assumes full responsibility and risk e The LE v50 turbine is a source of electrical power It must be installed in accordance with local building and electrical regulations Consult your local planning zoning office for details e The LE v50 turbine has moving parts that may cause injury due to poor installation and unsafe operation Leading Edge Turbines assumes no responsibility for pro
15. g and operating your turbine Tel 44 0 1981 241668 Skyrrid Farm Pontrilas Hereford HR2 OBW UK www leturbines com Page 5 of 28 Leading Edge Specifications Turbine Name LE v50 Turbine Rotor Diameter 270 mm Part Number GA LETU 010A Rated Wind Velocity 8 m s Nominal Voltage 12 24V 48V DC Rated Output 10 Watts Start up Wind Velocity 3 m s Chassis Construction Aluminium Total weight 9 0 Kg Rotor Blades 3 off Aluminium Tower mount see below Fig 1 Operating Envelope Power Output Watts A oO 30 20 10 0 0 Wind Velocity m s Fig 2 Energy Conversion lll e Tel 44 0 1981 241668 Skyrrid Farm Pontrilas Hereford HR2 OBW UK www leturbines com Page 6 of 28 d Leading Edge Package Contents Your LE v50 turbine will arrive containing the components shown below If any of the components are missing or damaged please contact your dealer immediately LEV 50 Turbine Instatlation amp Operation Guide LE v50 Turbine Qty 1 User Manual Qty 1 Tools Required For Assembly You will require the following tools to assemble your LE v50 turbine e 13mm A F spanner amp 13 mm ratchet one of each required 8mm A F spanner or ratchet e Aset of Metric Standard Hexagon Keys e Electrical screw drivers e Power drill e 8 5 mm diameter twist drill bit suitable for drilling through steel if standard mount brackets are being used e Digi
16. g lead acid batteries Ensure that the Universal Run Stop switch is correctly wired as per these instructions and wiring schematics Incorrect wiring may lead to a short circuit being placed across the batteries which can lead to fire or explosion Please use common sense when installing and operating your turbine and associated equipment Installation Please refer to electrical schematic for appropriate generic wiring diagrams The Universal Run Stop Switch can either be mounted in the enclosure box supplied which in turn can be mounted on an internal panel or the switch can be integrated into an existing panel If the unit is to be integrated into an existing panel a suitable cut out as detailed on the wiring diagram will need to be made Please ensure all 12 screw terminals of the switch are screwed closed before finally placing the top cover on the switch SHORT CIRCUIT LINK BETWEEN 3 amp 7 2 5mm BLK 30A TERMINAL 3 30A TERMINAL Somme RED gt e e s d l WILD DC FROM TURBINE mme BLK 6 e OT USED OR VE BATTERY TERMINAL Tel 44 0 1981 241668 Skyrrid Farm Pontrilas Hereford HR2 OBW UK www leturbines com Page 26 of 28 d Leading Edge Leading Edge Turbines Ltd Skyrrid Farm Pontrilas Hereford HR2 OBW UK Tel 44 0 1981 241 668 info leturbines com www leturbines com Tel 44 0 1981 241668 Skyrrid Farm Pontrilas Hereford HR2 OBW UK w
17. he following guidelines should be followed Location The DL 300 controller should be mounted in an adequately ventilated area which is not exposed to direct moisture or spray The dump load elements become hot during normal operation and should not be covered or blocked Gel or Flooded Batteries An electrical jumper needs to be configured in order to make the controller more suitable for use with Flooded or Gel batteries A jumper supplied should be applied to pins labelled 2 2 when the DL 300 is to be used with flooded batteries When the DL 300 is to be used with Gel batteries no jumper should be applied to pins 2 2 In any circumstance no jumper should be applied to pins 2 1 J2 1 Use the correct voltage controller A 12V DL 300 controller should only be used on a 12V battery system A 24V DL 300 controller should only be used on a 24V battery system Do not interchange Follow the appropriate electrical code The electrical wiring of your LE V50 turbine and associated electrical systems must be done in accordance with national and local electrical codes and regulations Do not connect the turbine or batteries during the installation Ensure that the turbine is not running or connected to the batteries during the installation or wiring process Connect the output cables of the turbine together to prevent the rotor from starting up Galvanic corrosion of electrical joints Try to avoid connections between diss
18. imilar metals For example connecting copper and aluminium together will result in galvanic corrosion of the connection This will increase the electrical resistance of the connection wasting energy and reduce the mechanical integrity of the joint Where possible use a fluxed solder to make electrical joints Protect the cables The power transmission cables must be protected from mechanical damage and fatigue Run the cables through an approved conduit trunking Tel 44 0 1981 241668 Skyrrid Farm Pontrilas Hereford HR2 OBW UK www leturbines com Page 22 of 28 d Leading Edge Cable strain relief Prevent mechanical strain on all cables Cable ties or cable glands are a good way to prevent mechanical strain on the cables Fuses The DL 300 controller should be protected with a suitably rated slow blow DC fuse or DC circuit breaker Please refer to the table below for the correct rating The fuse or breaker should be positioned between the DL300 and batteries on the positive cable Nominal Voltage DC Fuse DC Circuit Breaker Rating 12V 30 Amp 24V 15 Amp DL 300 Voltage Set Points Whilst operating the DL 300 does a multi stage charge based on time and the bulk and float voltages 12V Set points Mode Flooded Sealed Bulk 14 6 14 3 Float 13 4 13 4 Protect 16 0 15 0 24V Set points Mode Flooded Sealed Bulk 29 2 28 6 Float 26 8 26 8 Protect 32
19. ive and negative cables e Cable Selection The cable size table should be used to select the minimum sized cable for a given transmission distance Voltage drop in the cable will be improved if a larger cable is used e Fuses The turbine and charging circuit should be protected with a suitably rated slow blow DC fuse or DC circuit breaker Please refer to the table below for the correct rating The fuse or breaker should be positioned between the turbine and batteries on the positive cable If a stop switch is used recommended the fuse should be positioned between the switch and the batteries LE v50 Nominal DC Fuse DC Circuit Breaker Rating Output Voltage 12V 6 Amp 24V 3 Amp 48V 1 5 Amp Tel 44 0 1981 241668 Skyrrid Farm Pontrilas Hereford HR2 OBW UK www leturbines com Page 11 of 28 d Leading Edge e Run Stop Switch A simple switch arrangement can provide a safe and easy way of stopping the turbine for maintenance Leading Edge Turbines can supply a switch which is best for this purpose As the switch is thrown the batteries are disconnected and the turbine is shorted reducing the rotor to a slow rotation Refer to the generic wiring diagrams A run stop switch is optional on the LE v50 turbine See Appendix for more information e Charge Controllers Normally the LE v50 turbine does not require any external charge control equipment to be installed in the system
20. ive mounting brackets are available from Leading Edge Turbines Ensure that the turbine is mounted vertically and on a flat and smooth surface Incorrectly mounting the turbine may cause the main spine to distort which may result in the turbine not rotating freely Tel 44 0 1981 241668 Skyrrid Farm Pontrilas Hereford HR2 OBW UK www leturbines com Page 9 of 28 d Leading Edge 5 Fig 5 Mount the turbine in position 8 8 x 12 0 mm slot Install the Transmission Cables Follow the table below to select the correct wire size cross sectional area This will vary depending on your nominal battery voltage and the distance that the cables will be run Careful selection of the cable size is required It will not only affect the safety of the system but also the overall efficiency A cable of insufficient cable size will cause a voltage drop wasting the power that has been generated The cable sizes listed below have been selected with efficiency and cost in mind as it is unlikely that your turbine will be running at full capacity 100 of the time If in doubt consult your local electrical supplier The cable should be installed in accordance with local electrical regulations and guidelines If in doubt use a local electrical contractor to complete the cable installation Once the transmission cable installed it can be connected to the LE v50 Warni
21. king condition and is safe for continued use After five years of normal operation e We recommend that the rotor bearings should be replaced after five years of continuous operation This will ensure that the turbine s performance and safety is not compromised Other Considerations e The equipment used in the charging system batteries charge controller PV panels invertors etc should be maintained according to the instructions published by the relevant manufacturer e Where lead acid batteries are used it is especially important that they are maintained carefully Failure to do so will result in the batteries being rendered useless within a short period of time Tel 44 0 1981 241668 Skyrrid Farm Pontrilas Hereford HR2 OBW UK www leturbines com Page 15 of 28 d Leading Edge Spares The following components may need to be replaced during the service life of your LE v50 turbine Please contact your nearest Leading Edge Turbines Dealer and quote the part numbers listed below Rotor Blade DP LETU 145 Rotor Bearing Housing DP LETU 198 Bearing Service Kit OS 296 Stator 48VDC SA LETU 006 48V Stator 24 VDC SA LETU 006 24V Stator 12 VDC SA LETU 006 12V Bridge Rectifier OS 019 Upper Stub Shaft DP LETU 199B Run Stop Switch Box GA CTRL 008A Tel 44 0 1981 241668 Skyrrid Farm Pontrilas Hereford HR2 OBW UK www leturbines com Page 16 of 28 Leading Edge Warranty Your LE v50 turbin
22. nds The turbine will continue to generate power whilst surviving the immense forces that are exerted by high winds Tel 44 0 1981 241668 Skyrrid Farm Pontrilas Hereford HR2 OBW UK www leturbines com Page 14 of 28 Leading Edge Maintenance Please follow the preventive maintenance programme listed below This will ensure that the turbine operates reliably and safely with good efficiency Always shut down the turbine before attempting to carry out maintenance Post Installation Checks to be carried out one month after installation e Check that the turbine mount fixings are secure and has not worked loose Adjust if required e Ensure that the rotor blades rotate freely e Ensure that all electrical connections are sound Annual Maintenance e Inspect the turbine amp support structure e Ensure that the bearings are smooth and free running e Inspect the rotor blades for damage such as dents or chips The blades will become unbalanced if they are damaged This will cause vibration noise and poor performance If many dents have occurred along the edges of the blades a new set of rotor blades should be fitted part numbers available in the Spares section e Remove any build up of dirt and debris from the rotor blades using a mild detergent and warm water e Check the blade fixings for tightness e Check that all electrical connections are sound and free from corrosion e Generally ensure that the turbine is in good wor
23. ng If a cable of insufficient cross sectional area is used heat will build up in the cables causing a potential fire hazard Cable capacities quoted below are based upon Tri Rated cables BS6231 Transmission Distance LE v50 Nominal Output 10 Metres 30 Metres 100 Metres Voltage 30 Feet 90 Feet 300 Feet 12 Volts 1 5 mm 4mm Not Recommended 24 Volts 1 5 mm 2 5 mm 10 mm 48 Volts 1 5 mm 1 5 mm 4mm Tel 44 0 1981 241668 Skyrrid Farm Pontrilas Hereford HR2 OBW UK www leturbines com Page 10 of 28 Leading Edge Electrical Installation Please refer to Figs 6 for appropriate generic wiring diagrams In a battery charging renewable energy system there may be different ways of wiring small wind turbines photovoltaic panels charge controllers and batteries together This type of system will often expand organically but the following guidelines should be followed e Follow the appropriate electrical code The electrical wiring of your LE v50 turbine and associated electrical systems must be done in accordance with national and local electrical codes and regulations e Do not connect the turbine or batteries during the installation Ensure that the turbine is not running or connected to the batteries during the installation or wiring process Connect the output cables of the turbine together to prevent the rotor from starting up e Galvanic corrosion of electrical j
24. oints Try to avoid connections between dissimilar metals For example connecting copper and aluminium together will result in galvanic corrosion of the connection This will increase the electrical resistance of the connection wasting energy and reduce the mechanical integrity of the joint Where possible use a fluxed solder to make electrical joints e Protect the cables The power transmission cables must be protected from mechanical damage and fatigue Run the cables through an approved conduit trunking e Cable strain relief Prevent mechanical strain on the transmission cables running down the tower from the turbine Clip the cables to the inside of the tower Failure to do this will result in excessive mechanical strain on the cable joints within the slip ring assembly and may cause a failure Cable ties or cable glands are a good way to prevent mechanical strain on the cables e Earth the System The turbine tower should have its own separate earth point The negative terminal of the battery bank should also be earthed This provides protection against the build up of static and lightning strikes The tower should be earthed separately with its own ground rod if there is a long transmission distance between the tower and batteries An appropriate surge arrestor could also be used to help prevent damage to the battery charging system during a lightning strike Ensure that the earth cables are of the same rating as the posit
25. oller begins to bleed power from the turbine into the dump load This energy is then dissipated as heat into the surrounding environment More or less power is diverted to the dump load according to how much is being supplied to the battery and also in relation to the state of charge of the battery The DL 300 Features PWM Pulse Width Modulation for highest charging performance without flicker Selectable three stage charging or over voltage protection mode Selectable for sealed or flooded batteries using jumpers Power 12 Volt version DL 300 12 Recommend fuse or circuit breaker 30 Amps Integrated load resistor 300 Watt wire wound Quiescent current when not load dumping 2 6mA 12 Volts Power 24 Volt version DL 300 24 Recommend fuse or circuit breaker 15 Amps Integrated load resistor 300 Watt wire wound Quiescent current when not load dumping 3 0mA 24 Volts Connections 10 32 brass screws for V and V Two 1 2 3 4 concentric NPT knockouts and two 1 2 NPT knockouts Mounting Mounts to vertical concrete metal drywall or other non flammable surface Uses four 10 screws Body sits 19 mm out from wall Enclosure suitable for indoor mounting Weight and Dimensions Dimensions 88 mm wide 95 mm tall 470 mm long 3 375 x 3 75 x 18 5 in Weight 1 94 Kg 4 28 pounds Shipping Dimensions 102 mm wide 108 mm tall 508 mm long 4 0 x 4 25 x 20 in Shipping Weight 2 15 Kg 4 75 pounds Materials En
26. rbine upside down or in any orientation other than that depicted on the installation instructions e Install your turbine during a calm day Electrical Safety Hazards e The LE v50 generates rectified DC voltage Even at these low voltages there are inherent risks Caution should always be used when connecting the LE v50 to the electrical system e Ensure that you have followed the cable sizing chart to ensure that the correct size of transmission cable has been selected If a cable of insufficient cross sectional area is used heat may build up in the cables causing a potential fire hazard Using cables of insufficient cross sectional area may also reduce the power transmission efficiency of the turbine e Battery systems can deliver a serious amount of current A short circuit in the battery circuit can lead to hundreds of amps flowing through the battery cables This will cause a heat build up and ultimately an electrical fire Batteries can explode when shorted Always use insulated electrical tools when working on the battery s electrical connections e Batteries are very heavy Do not attempt to move batteries by yourself Always use manual handling tools and an assistant e Always keep lead acid batteries the correct way up Do not allow the acidic electrolyte to spill or come into contact with your skin or face Always follow the manufacturer s safety instructions when handling lead acid batteries Please use common sense when installin
27. rd A properly sized fuse or circuit breaker should be used in the cables connected to the battery This will stop the risk of short circuit currents Batteries used in renewable energy systems can deliver a serious amount of current A short circuit in the battery circuit can lead to hundreds of Amps flowing through the battery cables This will cause a heat build up and ultimately an electrical fire Batteries are also susceptible to explode when shorted Always use insulated electrical tools when working on the battery s electrical connections Batteries are very heavy Do not attempt to move batteries by yourself Always use manual handling tools and an assistant Always keep lead acid batteries the correct way up Do not allow the acidic electrolyte to spill or come into contact with your skin or face Always follow the manufacturer s safety instructions when handling lead acid batteries Please use common sense when installing and operating your turbine and DL 300 Charge Controller Tel 44 0 1981 241668 Skyrrid Farm Pontrilas Hereford HR2 OBW UK www leturbines com Page 21 of 28 d Leading Edge Electrical Installation Please refer to electrical schematic for appropriate generic wiring diagrams In a battery charging renewable energy system there may be different ways of wiring small wind turbines photovoltaic panels charge controllers and batteries together This type of system will often expand organically but t
28. tal multi meter capable of measuring DC Volts Tel 44 0 1981 241668 Skyrrid Farm Pontrilas Hereford HR2 OBW UK www leturbines com Page 7 of 28 d Leading Edge Mechanical Assembly Procedure 1 Unpacking Inspect the contents of the box and ensure that all items are present and free from damage If any of the components are missing or damaged please contact your dealer immediately 2 Check Main Rotor amp Continuity Ensure that the main rotor is free turning and does not scrape or rub as it rotates see Fig 4 As the turbine is shipped in a horizontal orientation it may be the case that the upper or lower stub shafts or cowlings have shifted during transit If the turbine blades feel stiff and do not rotate freely follow the below steps to reset the stub shaft positions A Remove the M5 cowling fixings and then the cowlings themselves B Slightly slacken the M5 fixings on the upper and lower stub shafts C Hold the turbine vertically and rotate the main rotor blades D The stub shafts will now reposition themselves and the turbine will rotate freely E Retighten the upper and lower stub shaft fixings and check that the turbine still rotates freely F Reposition and fix the cowlings ensuring that they do not rub upon each other The bearing units used in the magnet rotor assembly are factory lubricated and sealed for life It will take approximately 100 hours of normal operation for the seals to bed in an
29. urbine should only be undertaken by suitably competent and qualified personnel Mechanical Safety Hazards e The main rotor is the most obvious and serious mechanical safety risk When the turbine is operating at its rated performance the blades may be very difficult to see due to the speed of rotation Never approach the turbine whilst it is operating at speed Ensure that the turbine is installed in a suitable position where nobody can interfere with the rotor blades e Working with tools of any kind can be dangerous Your LE v50 turbine requires some basic mechanical assembly with rudimentary hand tools If you are in any doubt about how to use these tools correctly please seek advice from a suitably experienced person e Your LE v50 turbine will inevitably be installed upon a mast or tower or other support structure This may mean working at height Always ensure that all personnel in the immediate vicinity are aware of any lifting hoisting operations that will be occurring Check there are no loose components or tools likely to fall and cause injury during the lifting operation Where possible all assembly work should be completed at ground level e Ensure that the batteries are disconnected during the installation procedure e Twist the turbine output cables together to create a short circuit during the mechanical installation process This will prevent the turbine from spinning up during the installation e Never install the tu
30. ww leturbines com Page 27 of 28 Leading Edge Contact Us Your Local Distributor Leading Edge Turbines Ltd Skyrrid Farm Pontrilas Hereford HR2 OBW UK Tel 44 0 1981 241 668 info leturbines com www leturbines com Tel 44 0 1981 241668 Skyrrid Farm Pontrilas Hereford HR2 OBW UK www leturbines com Page 28 of 28
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