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1. lar International Botswana ver tp solar PV Hybrid System 1800Wp 5kVA USER MANUAL lar International Botswana PTY LTD P O Box 149 Gaborone iRoad Broadhurst Industrial Plot 6384 Unit E Phone 3182890 Fax 3182891 Email SIB info bw Solar PV System 1800Wp 5kVA USER MANUAL page 2 Table of Contents IL InttodieN On oem seta an E Ghea nota sana nata A 3 Die V SUC OM POC ENS sn h ate osn ed Sana ne san SAR ena asas MR nona asas Sat Ooo RA EE 3 21 Solar Pane non nee teas 3 Adat DEOS T I ek ono ma ae Es anna A mna 3 2 1 2 Layout of Solar Panels on the Roof 4 2 molor been 4 2 14 Serial Numbers of Solar Panels ooonnnaaaaaaa 5 2 DOT W aE na ant 6 2 B E A E E E E aan ru aa 1 Deli Date PAINS ae tan ea AA ana Onani Aa bonsai 7 D2 bole WAN EA IOE EA AA A O na A A eee ees 7 DDS Battery SCC IOAN Ooo n p eae dea an an aO Eai S 224 Battery and Control ROOM ai boa san an anon asa tuna S 29 Chare Roculatorand TVer teen mn aah memo malem KE memo tesa adeeneosdleeuts 9 2 GGT CC Kesual On ee ema aan amen aan Tn an Nani 9 DB ee an an sea E EE aa AEA 10 Zi OWENE ON TIE NO an a s 11 2 3 4 Switching form Solar to Generator Operation 12 2 an ena aa Me nb ea ata 13 Sub Solar Panti oo sn E an AN ane ms intens panen anna Panas angan 13 Io Baen one na nee Na aa Naas is Un sena WS 13 393 Charce Conwoll er and MVer e o aa 13 Be ETE Eo i N AN NA DA na aa PA NA AN PIN 14 Sol Dolar PANN CUS on aa aan sman ma am sana
2. Broadhurst Industrial Plot 6384 UnitE Phone 3182890 Fax 3182891 Email SIB info bw Solar PV System 1800Wp 5kVA USER MANUAL page 8 2 2 3 Battery Specifications The batteries installed are 30 off 8DC150 Taurus deep cycle batteries with a nominal voltage of 8V and a capacity of 210Ah at a 20 hour discharge rate This battery has a weight of 27 5 kg and dimensions 264x181x284mm LxWxH The deep cycle range of Taurus batteries incorporates the latest technology to ensure optimum performance life and reliability and are particularly designed for applications where regular charge and discharge is required Features of the batteries are the following Strong durable polypropylene container with heat sealed lid Low resistance welded inter cell connectors to minimise voltage drop for continues discharge Plates and elements constructed to give durability resistance to corrosion and high performance Long life polyethylene separators with glass matt Low antimony grid alloy resulting in a low rate of self discharge and longer period between topping up 2 2 4 Battery and Control Room The layout of the battery room is shown in the photo below The inset shows a birds eye view The charge regulator is mounted on the wall and the inverter is located between the two rows of batteries Note the air bricks at the top and bottom of the walls to allow for ventilation m SOLAR CONTROLLER a NYVERTER Te m al o
3. mo eee 14 Ak BAN ee nan DA io Sbb 14 4 3 Inverter and Charge Controller a cscsissccccraxoncstesssaaacesssseasaeescaaceatoncadesasaaacetasseacawasaneeatoncadesaacacee 14 Figure 1 Layout of the solar panels on the TOOf ooonnnnnannnaaaaaan 4 Figure 2 Dimensions of the solar panel brackets ooonnnnnnnannaaaa 4 Figure 3 Layout of the solar panels on the roof with serial numbers ooonnananaan 5 Figure 4 Layout of the solar panels on the VOOf cccccccccccssscccccccccccccnessseeccceeeeaeessseeceeeeeeaaeseeeeeeeeeesaaaaseeseeeeeeas 5 Figure 5 Layout of the wiring and terminal bOXES oonnnnnannnnaaan 6 Figure 6 Top view and side view of the battery frame wo 7 Figure 7 Battery wiring diagram sein ia emalinana 7 Figure 8 Layout of the battery and control room S Figure 9 Front of the charge regulator 9 Figure 10 Schematic diagram of the charge regulator 9 PUCUIO Lt DV ONC PONCE Of MA Aan De Wa BA ab ERTER 10 Figure 12 Schematic diagram of the front panel Of the inverter 10 lar International Botswana PTY LTD P O Box 149 Gaborone Road Broadhurst Industrial Plot 6384 Unit E Phone 3182890 Fax 3182891 Email SIB info bw Solar PV System 1800Wp 5kVA USER MANUAL page 3 1 Introduction The Solar PV System is a hybrid system that operates in conjunction with an electric generator not supplied by Solar International Pty Ltd The system also has the capability to operate as a stand alone sys
4. ANY LOAD SIMULTANEIOUSLY SINCE THIS WILL RESULT IN THE DESTRUCTION OF THE SOLAR SYSTEM AND OR GENERATOR lar International Botswana PTY LTD P O Box 149 Gaborone Road Broadhurst Industrial Plot 6384 UnitE Phone 3182890 Fax 3182891 Email SIB info bw Solar PV System 1800Wp 5kVA USER MANUAL page 13 3 Maintenance 3 1 Solar Panels Electrical maintenance of the solar array is minimal A visual check of the general tidiness of the wiring to the panels and the conduits can be done from the ground so there is no need to climb onto the array The boxes at the back of the panels are not to be opened under any circumstances there are no user serviceable components inside Because of the size of the array to clean it is difficult however if it is felt that the array is in need of cleaning then hosing the face of the panels with plain water is quite in order 3 2 Batteries The batteries are low maintenance and will require every three 3 months to be cleaned and the electrolyte level to be checked and if necessary topped up with distilled or de mineralised water Avoid over filling as this will lead to acid spill Before topping up the electrolyte specific gravity should be checked with a hydrometer in order to monitor the battery charge status and individual cell conditions with respect to each other Further the only other maintenance required is to lightly grease the terminals and checking the nut
5. Solar Panels The Shell Solar panels carry a workmanship of two years The panels carry a limited peak power warranty of 20 years from the date of sale to the consumer purchaser against degradation in excess of ten 20 per cent of the minimum nameplate power output measured at an optimum voltage under the standard conditions of 1000W m at a cell temperature of 25 degrees Celsius Shell Solar warrant to replace this lost power provided such degradation is determined to be due to faulty workmanship or materials or repair of the panels or a refund of the purchase price based on a yearly depreciation of 5 This applies to the RSM90 solar panels provided that the serial or identification number has not been altered defaced or removed and that the solar panels have not been removed from the original installation by persons or bodies not authorized in writing to do so by Solar International Botswana Pty Ltd 4 2 Batteries The Batteries are warranted for a period of one 1 year from date of installation against failure through faulty workmanship or materials The batteries will be replaced or repaired free of charge during this period provided the installation has not been altered without the written authorization of Solar International Botswana Pty Ltd The warranty does not cover neglect or abuse or the use of battery dopes will render the warranty null and void 4 3 Inverter and Charge Controller The Inverter and Charge Controller a
6. lar Solar Solar sa Array Array Array Array Array en laa Ta tt gl 4 Ss fe T Fie Figure 10 Schematic diagram of the charge regulator lar International Botswana PTY LTD P O Box 149 Gaborone Road Broadhurst Industrial Plot 6384 Unit E Phone 3182890 Fax 3182891 Email SIB info bw Solar PV System 1800Wp 5kVA USER MANUAL page 10 2 3 2 Inverter The sine wave inverter is used to generate 220 VAC from DC batteries The sine wave so generated is of the same form as that of grid electricity and at the standard frequency of 50 Hz It enables the user to operate the most sophisticated appliances and equipment from this power source The inverter has low power consumption in a no load condition which affords a saving on solar modules or other generating sources Figure 11 F ront panel of the inverter INVERTER FRONT PANEL The inverter is equipped with an under voltage OVERLOAD POWER BATTLOW lockout facility which 2 Taka Ba protects the batteries from ation TA over discharge The KK output voltage is regulated at 220 Volts AC The inverter operating efficiency is of around N 90 The inverter is rugged and reliable It has been tried and tested in many different locations and applications BATTERY AC DC VOLTS sn voc _ Battery Voltage Figure 12 Schematic diagram of the front panel of the inverter lar International Botswana PTY LTD P O Box 149 Gaborone Road B
7. nction boxes numbered to 5 as indicated in the figure below The individual cables from the terminal boxes 1 5 of the sub arrays are fed into the charge regulator kete20 J ggr 0 J 6g6t 20 J ggetr0 d hee d alala Ta 5 un uo Oka 2 BORE LO 2 ep SPRELO J cee LO 2 kes LO J Set LO J 06t LO 2 CEF LO J Ore J Figure 5 Layout of the wiring and terminal boxes lar International Botswana PTY LTD P O Box 149 Gaborone Road Broadhurst Industrial Plot 6384 Unit E Phone 3182890 Fax 3182891 Email SIB info bw Solar PV System 1800Wp 5kVA USER MANUAL page 7 2 2 Batteries Battery Frame 2 21 Battery Frame Top View The battery frame is a welded 1600 mm construction made of 50x50x 5mm angle iron Dimensions of the frame are as indicated in the figure on the right Battery Frame Side View 800 mm Figure 6 Top view and side view of the battery frame eS TEETER ig 800 mmm eS 1600 mm Mild Steel Angle Iron 50x5 mm 2 2 2 Battery Wiring tiii The battery wiring is indicated in the diagram on the right The nominal voltage of the battery bank is 48V Six batteries are wired in series and five series groups are wired in parallel The diagram shows top and bottom level of Rack A and Rack B respectively Figure 7 Battery wiring diagram tYe TO FUSE BOX Ve TO FUSE BOX lar International Botswana PTY LTD P O Box 149 Gaborone Road
8. one 3182890 Fax 3182891 Email SIB info bw Solar PV System 1800Wp 5kVA USER MANUAL page 5 21 4 Serial Numbers of Solar Panels The serial numbers of the solar panels and their position birds eye view are indicated in the diagram below S mn J o o Le J am oc mm fam mm Fa H d E un a Fa cri Fa ta na Ta oo bo E wo Fa ia E uo a mn mp E ap iM Ti a my za un BJ on Ta Tm T 2 Cy M m m m Cy r m m m o D m a fa on fa a E F ai E Di oo F no no mo no E an am ma S5 m bo bo bo co ho E J bo a to iva iM Td 4 m bt DJ un Figure 3 Layout of the solar panels on the roof with serial numbers The photo below shows the layout of the solar panels on the roof There is a provision of adding an additional row of panels under the existing layout There is an air gap between the panels and the roof to allow for ventilation so that the thatch does not rot Figure 4 Layout of the solar panels on the roof before thatching lar International Botswana PTY LTD P O Box 149 Gaborone Road Broadhurst Industrial Plot 6384 Unit E Phone 3182890 Fax 3182891 Email SIB info bw Solar PV System 1800Wp 5kVA USER MANUAL page 6 21 5 Solar Panel Wiring The solar panels are divided in five sub arrays that are wired 2 panels in series and 2 series strings indicated with an S in parallel resulting in a nominal voltage of 48V These units are then wired in individual ju
9. re warranted for a period of one 1 year from date of commissioning and Solar International Botswana Pty Ltd will repair or replace faulty units within the warranty period provided that the installation has not been tampered with or the units have not been abused in any way lar International Botswana PTY LTD P O Box 149 Gaborone Road Broadhurst Industrial Plot 6384 UnitE Phone 3182890 Fax 3182891 Email SIB info bw
10. ring a reliable barrier against penetration of moisture and dirt The solar cells are embedded in ultraviolet stabilized Ethyl Vinyl Acetate EVA The highly corrosion resistant aluminium alloy frame provides structural support for the solar panel 1 This User Manual is supplied with the 1800Wp 5kVa Solar PV system and should not be reproduced or distributed in any form without written consent of the director of Solar International Botswana Pty Ltd lar International Botswana PTY LTD P O Box 149 Gaborone Road Broadhurst Industrial Plot 6384 UnitE Phone 3182890 Fax 3182891 Email SIB info bw Solar PV System 1800Wp 5kVA USER MANUAL page 4 2 1 2 Layout of Solar Panels on the Roof The 20 solar panels are positioned on the roof in two rows of 9 panels and 12 panels as is indicated in the figure below 000 mm Setan alalatotatata 5500 mm Figure 1 Layout of the solar panels on the roof 2 1 3 Solar Panel Brackets The solar panel brackets are made of 38x38x3 mm angle iron with the angle facing upward to accommodate the solar panels not supplied by Solar International Pty Ltd The dimensions of the solar brackets are as indicated in the diagrams below 6440 mm 7870 mm Dimensions Top Bracket Dimensions Bottom Bracket Figure 2 Dimensions of the solar panel brackets lar International Botswana PTY LTD P O Box 149 Gaborone Road Broadhurst Industrial Plot 6384 UnitE Ph
11. roadhurst Industrial Plot 6384 UnitE Phone 3182890 Fax 3182891 Email SIB info bw Solar PV System 1800Wp 5kVA USER MANUAL page 11 The specifications of the inverter are the following Nominal power rating SOOO W Nominal input voltage rating 48V DC DC Input Variation 10 Output Voltage Regulation 220V AC 3 Output Frequency 50 Hz Output Waveform Sine Wave Frequency Stability 1 Overload Rating 10 sec 130 Load Power Factor 0 8 leading or lagging AC Output current meter Standard 0 15 Amps Electronics Protection 2 Amps fuse Reverse Battery Protection MCB AC Power Indication LED Ambient Temperature range 0 to 40 deg C Humidity 90 Standard Finish Textured Epoxy An additional feature is its ability to absorb substantial surge currents for short spells of time Inverter Operating Instructions The user should prevent rodents or insects from entering the cabinet and damaging the wiring or circuitry The user should ensure the inverter is operating correctly before connecting to a load Although the inverter is capable of absorbing a certain amount of overload current for a short period it is recommended that the load do not exceed 80 of the rated capacity to allow for start up in rush currents as the inverter has an over current protection circuit which may trip if the load exceeds the maximum value allowed 2 3 3 Switching on the inverter A qualified pe
12. rson conversant with the solar system and inverter should only carry this out to prevent inadvertent damage and or loss of guarantee The following should be observed refer to figures 11 and 12 on the previous page 1 Inspect the inverter for physical damage Ensure that all circuit breakers and meter s on the front panel are intact 2 Ensure that the circuit breakers are in the OFF position and the toggle switch is in the AUTO position 3 Do not connect any load to the inverter yet 4 Switch ON the battery circuit breaker on the front panel Switch the toggle switch to ON 5 Confirm that the inverter is working The green Power LED should be on and the red Overload LED should be off 6 Connect the AC load to the inverter and then switch on the AC circuit breaker at the front panel The inverter is now supplying 220 VAC to the load The meter will indicate the amount of current flowing lar International Botswana PTY LTD P O Box 149 Gaborone Road Broadhurst Industrial Plot 6384 UnitE Phone 3182890 Fax 3182891 Email SIB info bw Solar PV System 1800Wp 5kVA USER MANUAL page 12 2 3 4 Switching form Solar to Generator Operation The change over switch has not been supplied by Solar International Botswana Pty Ltd and therefore the user should obtain this information from their supplier WARNING UNDER NO CIRCUMSTANCES SHOULD THE GENERATOR AND SOLAR SYSTEM POWER
13. s for tightness Should any terminals show signs of corrosion they should be cleaned with a mild solution of bicarbonate of soda and then re greased WARNING DO NOT SMOKE NOR USE NAKED FLAMES IN TH THE BATTERY ROOM If you can t see use an electric torch 3 3 Charge Controller and Inverter The charge controller and inverter do not have any serviceable parts Lethal voltages are present inside the cabinet when the inverter is active Opening the cabinets voids the warranty Do not splash water onto the cabinets When dusty use a dry cloth to wipe off dust Make sure that the ventilation holes are not blocked No attempt should be made to remove any of the units Should any unit be suspect it must be reported through the normal channels for action by the appropriate persons trained and experienced in the Inverter and Charge Controller and their workings lar International Botswana PTY LTD P O Box 149 Gaborone Road Broadhurst Industrial Plot 6384 Unit E Phone 3182890 Fax 3182891 Email SIB info bw Solar PV System 1800Wp 5kVA USER MANUAL page 14 4 Warranty Equipment supplied by Solar International Botswana Pty Ltd will be warranted for a period of one 1 year from the date of installation to the customer purchaser against defects resulting from faulty workmanship and or materials when such equipment is installed by Solar International Botswana Pty and is operating under normal design conditions 41
14. t BATTERY ROOM A MIS ALI Figure 8 Layout of the battery and control room lar International Botswana PTY LTD P O Box 149 Gaborone Road Broadhurst Industrial Plot 6384 Unit E Phone 3182890 Fax 3182891 Email SIB info bw Solar PV System 1800Wp 5kVA USER MANUAL page 9 2 3 Charge Regulator and Inverter 231 Charge Regulator The function of the charge regulator is to prevent the batteries from being overcharged by the solar panels There is a constant monitoring of the battery status by the charge regulator and during the daytime charging cycle the right amount of charge current is automatically fed to the batteries whilst the solar will also be supplying power directly to the inverters Figure 9 Front of the charge regulator On the charge regulator there is an indication of which sub array is charging When the ai a bie ee kain batteries approach full charge Tahi 6 6 A amp ala the sub arrays are switched off Se 2 m m m subsequently starting with SEDOODODTOCOOPOSOOOIOCOOG sub array 5 The batteries are being monitored for low voltage and f IT l should the voltage fall below a T pesed kied Miami ba apie pre set level the inverter will 7 0m switch off to save the batteries Fal from damage from over discharge The figure on the right gives a schematic diagram of the charge regulator elle il a ok ELi EEk alle he Solar Scolar So
15. tem There is a manual change over from generator to solar operation Under no circumstances should the generator and solar system power any load simultaneously since this will lead to the destruction of the solar system and or generator Under normal operation the solar panels supply DC electric power to charge the batteries that in turn is converted to AC electric power by the inverter To ensure that the power from the solar panels does not over charge the batteries when they are fully charged a charge controller is used This user manual describes the system components maintenance requirements and warranty issues 2 System Components 2 1 Solar Panels 2 1 1 Description The Shell Solar RSM90 solar panel contains semi crystalline silicon solar cells generating a nominal peak power of 88 Watt at 33 5 Volt under standard test conditions 1000W m and 1 5 AM Open circuit voltage and short circuit current under these conditions are 43V and 2 9A respectively The nominal operating voltage of the solar panel is 24V The panels are connected in series strings of two panels to obtain a nominal operating voltage of 48V Maximum permitted series voltage is 600V The front of the solar panel is a high impact resistant highly transparent tempered glass plate offering the solar module adequate protection against environmental hazards such as hail and high wind loads The back of the solar panel consists of a tedlar aluminium polyester foil offe

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