User Manual for SUN Grid Tie Inverter
Contents
1. 24 Weight and Dimension of SUN Series Grid Tie Power Inverter 25 Ningbo National Hi Tech Park Sunshine Technology Co Ltd masspoweR Green world Clean world Sunshine Grid Tie Inverter Models Sunshine grid tie inverters include a series of models refer to table 1 For more information of all models refer to the Sunshine website http www chinesegrid com Table 1 Sunshine Grid Tie Inverter Models Model Number SUN 250G L U SUN 250G M U SUN 250G L E SUN 250G M E SUN 300G L U SUN 300G M U SUN 300G L E SUN 300G M E SUN 500G L U SUN 500G M U SUN 500G L E SUN 500G M E SUN 600G L U SUN 600G M U SUN 600G L E SUN 600G M E SUN 1500G H U SUN 1500G H E SUN 2000G H U SUN 2000G H E Rated Power Peak Continuous 250VV 1 225W 250W 1 225W 250W 225W 250W 225W 300W 270W 300W 270W 300W 270W 300W 270W 500W 450W 500W 450W 500W 450W 500W 450W 600W 540W 600W 540W 600W 540W 600W 540W 1000W 900W 1000W 900W 1000W 900W 1000W 900W 1500W 1350W 1500W 1350W DC Input Voltage 10 8V 30V 22V 60V 10 8V 30V 22V 60V 10 8V 30V 22V 60V 10 8V 30V 22V 60V 10 8V 30V 22V 60V 10 8V 30V 22V 60V 10 8V 30V 22V 60V 10 8V 30V 22V 60V 22V 60V 45V 90V 22V 60V 45V 90V 45V 90V 45V 90V 45V 90V 45V 90V TRE Output Voltage Range Frequency Range 90V 140V 90V 140V 190V 260V 190V 260V 92. 250W grid tie power system with two solar panels It doesn t matter that you connect small power solar panels like 6OVVp 85Wp or other power to the inverter the specification of total panels must meet the specification that you choose according to the principle that mentioned in this user manual Layout of Sunshine Grid Tie Power Inverter SUN 250G X X and SUN 300G X X have same layout please see the Fig 11 F e DC INPUT AC Output Panel Fig 11 SUN 250G X X SUN 300G X X Layout 20 Ningbo National Hi Tech Park Sunshine Technology Co Ltd masspoweR Green world Clean world SUN 500G X X and SUN 600G X X have the same layout please see the Fig 12 E AC Output Panel L Fig 12 SUN 500G X X SUN 600G X X Layout SUN 1000G X X layout please see the Fig 13 AC Output Panel L Fig 13 SUN 1000G X X Layout D DC Input Positive Terminal This terminal will connect to the positive wire of solar cables that connected with the positive pole of the solar panels 2 DC Input Negative Terminal This terminal will connect to the negative wire of solar cables that connected with the negative pole of the solar panels 3 Power Level LED The three green LED indicators will start to cycle from left to right when the grid and DC supply is detected This indicates the inverter is operating under normal condition The rate of the cycle flashing is according to how much output power is being fed to th
3. 29 4V Timp 8 34Ax4 TVoc 36 9V TIsc 8 68Ax4 From these specification we should to use SUN 1000G M E This is because the DC input voltage range of this model is 22V to 60V so the TVoc and TVmp is in the DC input voltage range With method 2 we also can get the specifications of the solar panels array TPmax 245VVx4 TVmp 29 4Vx2 TImp 8 34Ax2 TVoc 36 9Vx2 TIsc 8 68Ax2 From these specifications vve should to use SUN 1000G H E This is because the DC input voltage range of this model is 45V to 90V so the TVoc and TVmp is in the DC input voltage range The two connecting method diagrams are shown in Fig 4 and Fig 5 below 4 x 245VVp Solar Panels Connected in parallel 2 oo OO SUN 1000G M E AC Output Panel Fig 4 1KW Sunshine Grid Tie Power System Connected With Method 1 15 Ningbo National Hi Tech Park Sunshine Technology Co Ltd masspoweR Green world Clean world 4 x 245VVp Solar Panels 2 Panels Connected in Serial Constitudes a Pair of Panel 2 Pairs Connected in Parallel Outlet of Utility Grid DC Input Panel AC Output Panel Fig 5 1KW Sunshine Grid Tie Power System Connected With Method 2 Comparing the connected method in Fig 4 and Fig5 we can see that method 2 is the good choice because with method 1 the DC cables is more thick so it is more expensive and three pairs of connectors for parallel connecting plus three pairs of MC4 connectors should be used But with method 2 the DC cables
4. is thin and just a pair of connectors for parallel connecting and a pair of MC4 connector should be used Installing larger capacity of grid tie power system Sometimes maybe you are willing to install larger capacity of grid tie inverter in your house this is also very easy to operate For example you want to install 2KW grid tie power system you can install two 1KW grid tie power systems as shown in Fig 5 two AC output cables should be all connected to the AC outlet of the utility grid with the plugs The diagram of the 2KW grid tie system with two 1KW sytem are shown in Fig 6 we call this kind system as Stackable System 16 Ningbo National Hi Tech Park Sunshine Technology Co Ltd masspoweR Green world Clean world 4 x 245Wp Solar Panels 4 x 245Wp Solar Panels d 2 Panels Connected in Seria Constitudes a Pair of Pane 2 Panels Connected in Serial b Constitudes a Pair of Panel SUN 1000G M E SUN 1000G M E Fig 6 2KW Grid Tie Power System Consist of Two 1KW Grid Tie Power System Stacked You can install any capacity of grid tie power system by stack small grid tie power systems For example if you want to install 12KW grid tie power system there are many choices you can stack six 2KW grid tie power systems or twelve 1KW gird tie systems or stack twenty four 500W grid tie power systems or stack fourty eight 250W grid tie power system even you can mix different capacity grid tie power systems to gain large
5. system that you need 8 Step 2 Choosing Applicable Solar panels for Sunshine Grid Tie Inverter 9 Step 3 Selecting Accessory for Grid Tie Power System installation 10 Step 4 Selecting Correct Model of Sunshine Grid Tie Inverter 11 Step 5 Installing Solar Panels to suitable place 13 Step 6 Installing Sunshine Grid Tie Inverter to suitable place 13 Step 7 Connecting Sunshine Grid Tie Power System with Cables and Connectors 13 Step 8 Grounding the system 13 Step 9 Connecting the PV modules after complete from Step1 to Step8 13 Installing larger capacity of grid tie power system 16 Installing Sunshine Grid Tie Power System to Three Phases Utility Grid 18 Starting DIY from small Grid Tie System 19 Layout of Sunshine Grid Tie Power Inverter 20 Technical Date of SUN Series Grid Tie Power Inverter 23 Outline Drawing of SUN Series Grid Tie Power Inverter
6. 0V 140V 90V 140V 190V 260V 190V 260V 90V 140V 90V 140V 190V 260V 190V 260V 90V 140V 90V 140V 190V 260V 190V 260V 90V 140V 90V 140V 190V 260V 190V 260V 90V 140V 190V 260V 90V 140V 190V 260V AC Output 46Hz 65Hz 46Hz 65Hz 46Hz 65Hz 46Hz 65Hz 46Hz 65Hz 46Hz 65Hz 46Hz 65Hz 46Hz 65Hz 46Hz 65Hz 46Hz 65Hz 46Hz 65Hz 46Hz 65Hz 46Hz 65Hz 46Hz 65Hz 46Hz 65Hz 46Hz 65Hz 46Hz 65Hz 46HzZ 65Hz 46Hz 65Hz 46HzZ 65Hz 46Hz 65Hz 46HzZ 65Hz 46HzZ 65Hz 46Hz 65Hz IPeak Inverter Efficiency Night Power Consumption Ningbo National Hi Tech Park Sunshine Technology Co Ltd masspoweR Green world Clean world Model Name description SUN XXXG X X Doo AC Output Voltage Range U is 90V 140V E is 190V 260V DC Input Voltage Range L is 10 8V 30V M is 22V 60V H is 45V 90V G is Abbreviation of Grid Tie Power Inverter The Rated Output Power The Title Name of Sunshine Products Some models also have B type B means the model has LCD displayer For example the model SUN 1000G H E B is Sunshine grid tie power inverter model that the rated power is 1000W the DC input voltage range is 45V 90V the AC output voltage range is 190V 260V and with LCD displayer on the panel of the inverter Important Safety Information Read this First This manual contains important instructions to follow during installation and maintenance of Sunshine Grid Tie Inverter To reduce the r
7. IGHT Short press will open or close backlight 5 AC Output Outlet The inverter will be attached a AC cable when you buy it one terminal of this AC cables should be connected to the AC output outlet and another terminal should be connected to the outlet of the utiltiy grid 6 Fan Ventilation Opening Don t cover this opening when the inverter is working Technical Data of SUN Series Grid Tie Power Inverter Table 3 Common Specifications for SUN Series Grid Tie Power Inverter Peak power Tracking Voltage 14V 28V 26V 54 V 50 V 82 V Peak Inverter Effeciency 10 8V 30V 22 260 V 45 V 90 V Frequency Range 46Hz 65 Hz 46Hz 65 Hz Output Waveform Pure Sine Wave Pure Sine Wave Over Current Protection Yes Reverse Polarity Protection Stackable Just for AC Output Storage Tmeperature Range 40C 65 C K 23 Ningbo National Hi Tech Park Sunshine Technology Co Ltd masspoweR Green world Clean world There are some common specifications of SUN Series Grid Tie Power Inverter shown in Table 3 Other electrical specifications of every model are listed in Table 1 Outline Drawing of SUN Series Grid Tie Power Inverter DC Input Panel AC Output Panel AC Output Panel DC Input Panel Fig 16 SUN 500G X X SUN 600G X X Outline Drawing 24 Ningbo National Hi Tech Park Sunshine Technology Co Ltd masspoweR Green world Clean world AC Output Panel DC Input Panel ul Fig 17 SUN 1000G X X Ou
8. Ningbo National Hi Tech Park Sunshine Technology Co Ltd masspoweR Green world Clean world SUN Series Grid Tie Power Inverter Installation and Operations Manual BES EH NES saws Sa 5 SH SUN 250G SUN 300G SUN 500G SUN 600G SUN 1000G SUN 1500G SUN 2000G www chinesegrid com Copy Right 2013 All rights reserved Ningbo National Hi Tech Park Sunshine Technology Co Ltd MASsPONER Green world Clean world Table of Contents Sunshine Grid Tie Inverter Models 3 Model Name Description _ 4 Important Safety Information 4 Safety Instruction 4 Instruction of Sunshine Grid Tie Inverter 5 Advantage of Sunshine Grid Tie System 6 Sunshine Grid Tie Inverter Installation T Installation Procedure 8 Step 1 Considering the Total Capacity of the grid tie power
9. can install 500VV grid tie power system or 2KW grid tie inverter even more large capacity or more small capacity grid tie inverter it doesn t matter But if the capacity is too big you should consider the volume of AC system of your house can hold the feeded power Ningbo National Hi Tech Park Sunshine Technology Co Ltd mAsspover Green world Clean world Step2 Choosing applicable solar panels for Sunshine Grid Tie Inverter Descripiton of Solar Panel Solar panel is an array of solar cells it is an electrical device that converts the energy of light directly into electricity by the photovoltaic effect when exposed to light it can generate and support an electric current without being attached to any external voltage source Most solar panels consist of solar cells conected in serial Recently main solar cells have two types Mono and Poly their performance are almost same The main technical data of solar panel including Efficiency Pmax Vmp Imp Voc Isc etc For example the specifications of one type 245W solar panels consist of 60 PCS 156x156 Poly solar cells are shown below Module Efficiency 14 8 Pmax 245W Vip 29 4V Imp 8 34A Voc 36 9V Isc 8 68A k Note These specifications are under Standard Test Conditions STC STC Irradiance 1000W m2 Cell temerature 25 C Air mass AM1 5 according to EN60904 3 Module Efficiency is the converting efficiency that the module converts the energy of light into electr
10. capacity system AN VVARNING Don t Connect the DC input Terminals of one Sunshine Grid Tie Povver Inverter to anothers If so neither of the inverters can find the correct maximum power point MPP this will reduce the efficiency of the system Shown in Fig 7 Solar Panel Array SUN 1000G H E Fig Error Connecting of DC Input Terminals L7 Ningbo National Hi Tech Park Sunshine Technology Co Ltd MASSPONER Green world Clean world Installing Sunshine Grid Tie Power System to Three Phases Utility Grid When the Capacity of Gird Tie Power System is larger intall all the power system to one phase of the utility grid is not reasonable maybe this will cause unbanlance of the three phase of the utility grid In this section we will explain how to install Sunshine Power System to three phases utility grid seperately in order to balance the fed power A QI o A B C 3 phases N Neutral G Ground Fig 8 Three Phases Grid Tie Power System 18 Ningbo National Hi Tech Park Sunshine Technology Co Ltd masspoweR Green world Clean world For example installing a 3KW grid tie power system to three phase utility grid The diagram is shown in Fig 8 we seperate 3KW power sytem to three power system units every unit has 1KW power Connecting every system unit to different phase this can balance all grid tie power to three phases of the utility grid Fllow this way you can install more large grid tie power sy
11. e utility grid The more big output power is the more fast the rate is 4 Fault LED This red LED will indicate several informations 21 Ningbo National Hi Tech Park Sunshine Technology Co Ltd mAsspover Green world Clean world a When the red LED is on all time this indicates that the AC output cables is not connected with the utility grid or the AC voltage or frequence of the uitlity grid is out of the range of the specifications of the inverter b When this red LED is flashing slowly this indicates that the DC input voltage is too low c when this red LED is flashing fastly this indicates that the DC input voltage is too high 5 Fan Ventilation Opening Don t cover this opening when the inverter is working AC Output Outlet The inverter will be attached a AC cable when you buy it one terminal of this AC cables should be connected to the AC output outlet and another terminal should be connected to the outlet of the utiltiy grid D AC Output Voltage Switch This switch is an unique set just for SUN 250G and SUN 300G model other models of SUN Series inverter have no such switch with this switch you can set the inverter for 220V to 240V utility grid of many European countries and other countries when the switch is set to 230V position or set the inverter for 100V to 120V utility grid for many countries like USA Japan and other countries when the switch is set to 115V position WARNING Don t change the posi
12. f cables should be selected The selection of specifications of the cables is according to the total power of the solar panels and the connecting method of solar panels You should calculate the maximum current that will transit through the cables we mark it as Imax First calculate the total Pmax of the solar panels that will be consisted of the grid tie power system we mark it as TPmax then calculate the total Vmp of them we mark it as TVmp we also can get total Imp mark it as Tlmp with this we can get the Tlmax using a formula 1 or 2 shown below Timp TPmaxiTVmp 1 or TimpzImpxsNn 2 N is the parallel number of solar panels After finish the calculation of Imax then vve can pick suitable cables according to Table 2 Its the best that you choose solar cables for outdoor use Selecting Connectors VVhen installing the SGPV system maybe you should use some connectors for connecting solar panels and inverter Most of these connectors are shown as below BS 08 e ne Connectors for parallel connecting MC4 Connectors Selecting AC cables AC cables will be supplied with inverters by our factory different countries will be supplied different type AC cables according to the standard of the area You should provide the information to the dealer where you will install the system Step4 Selecting Correct Model of Sunshine Grid Tie Inverter When finished step1 to step3 and decided the co
13. g For the choice of DC cables we should consider about the connecting method of solar panels there are two methods can be choosed Method 1 Connecting the 4 panels in parallel so the maximum DC current will be Timp TPmax TVmp 980W 29 4V 33 3A or Timp Imp x 4 8 34A x 4 33 3A According to the Table 2 AWG6 Cables should be choosed Method 2 Connecting 2 panels in serial consist as a pair so 4 panels can be gotten 2 pairs Timp TPmax TVmp 980VV158 8V 16 7A or Timp Imp x 2 8 34A x 2 16 7A So according to the Table 2 AWG9 cables should be choosed Because the DC cables will be more expensive if the diameter is big considering about this matter the method that can use smaller diameter cables will be a good choice 14 Ningbo National Hi Tech Park Sunshine Technology Co Ltd MASSPONER Green world Clean world 4 Selecting correct model of Sunshine Grid Power Inverter Because maybe there will be several methods of connecting solar panels to Sunshine Grid Tie Inverter different connecting method maybe should use different model inverter In this case there are two connecting methods With method 1 because all panels are connected in parallel so we can know that the TVoc total Voc of the solar panels will be same as Voc of one panel and the TVmp also is same as Vmp of one panel So we can get the specifications of the solar panels array with solar panels connected each other TPmax 245Wx4 TVmp
14. h many of them The quantity of SGPV in the array is just according to your desire If you are planning to install a grid tie PV system in a general way the solar array and inverter need to be carefully matched to ensure that the inverter s voltage and power limits are not exceeded When you want to increase more solar panels and if the total power of the solar panels exceeds the allocation grid inverter it is necessary to increase the cost of a grid inverter 3 Combination of SGPV does not interact The traditional solar grid tie system they offer units ranging in high power output and these units are modular so you can have multiple units operating in parallel for large solar arrays Although the traditional grid inverter has MPPT feature Maximum Power Point Tracking but the maximum power point is according to the entire series in terms of solar panels array if the performance of a piece of solar panels in the system for some reason such as leaves bird droppings dust shadow etc and degrades the performance of the entire solar power system will decrease SGPV has no such disadvantage If the performance of a piece of solar panels in the system degrades this just effects this piece itself will not affect other SGPV in the system 4 Improving the efficiency of the entire solar power system In traditional grid tie system the solar panels are connected in series so the MPPT of the inverter is according to the total panels in serie
15. icity power Pmax is the Maximum Power of solar panels Vmp is the Rated Voltage at Pmax Imp is the Rated Current at Pmax Voc is the Open Circuit Voltage Isc is the Short Circuit Current Because these specifications are under STC these specifications also are sensitive with temperature of surroundings so should consider the vary of these specification with temperature Please check the curves of l V and Temperature Dependence of Isc Voc Pmax Ningbo National Hi Tech Park Sunshine Technology Co Ltd masspoweR Green world Clean world Current A Power i VV Normalized Isc Voc Pmax Cell Temperature C Volaqe V Fig 2 l V Curves Fig 3 Temperature Dependence of Isc Voc Pmax The l V Curves shown in the Fig 2 is a solar panel s l V curves that the power is 230W You can get the information from this l V curves that different irradiance under sunshine will get different power from same solar panel and also different power will be converted under same irradiance but the output of DC voltage is different the solar panel just can get maximum power at one point under a certain irradiance this point is called maximum power point MPP The MPP also is sensitive with temperature of surroundings The temperature dependence of Isc Voc Pmax shown in the Fig 3 You can see that the Pmax and Voc have negative temperature character Vmp also has same character Rs Choosing solar panels The most important specifications
16. isk of electrical shock and to ensure the safe installation and operation of the Sunshine Grid Tie Inverter the following safety symbols appear throughout this document to indicate dangerous conditions and important safety instructions WARNING This indicates a situation where failure to follow instructions may be a safety hazard or cause equipment malfunction Use extreme caution and follow instructions carefully SI NOTE This indicates information particularly important for optimal system operation 7 Follow instructions closely Safety Instructions WARNING Be aware that the body of the Sunshine Grid Tie Inverters is the heat sink and can reach a temperature of 80C under extreme conditions To reduce risk of burns do not touch Perform all electrical installations in accordance with all local electrical codes and the National Electrical Code Be aware that only qualified personnel should install and or replace Sunshine Grid Tie Inverters Do not attempt to repair the Sunshine Grid Tie Inverter it contains no user serviceable parts If it failed please contact Sunshine customer service to obtain a RMA number and start the replacement process Tampering with or opening the Sunshine Grid Tie Inverter will void the warranty Before installing or using the Sunshine Grid Tie Inverter please read all instructions and cau tionary markings in the technical description and on the Sunshine Grid Tie Inverter and the PV array Ni
17. ls to the NEC approved AC grounding electrode The racking and module could be grounded to this conductor using a crimp connection An alternative method would be to connect the grid tie inverters to the grounded racking using a grounding washer approved for the racking The ground wire of the AC cables is connnected to the housing of inverter when the AC cables is connected to the inverters so when the AC plug is inserted to the socket of AC outlet of utility grid in the house the ground pin of the socket must be connected to the Earth ground Step9 Connecting the PV modules after complete from Step1 to Steps Warning If you will connect the PV modules to the inverter under sunshine you should cover the modules with no transparent material like black cloth if the modules have been connected in serial just cover one module actually just need to cover one cell of the module but if the modules have been connected in parallel you should cover one module of every branch also just need to cover one cell when you cover a module Covering the modules under sunshine just in order to avoid the sparkle when connect the cables 13 Ningbo National Hi Tech Park Sunshine Technology Co Ltd masspoweR Green world Clean world Example of Installation of 1KW grid tie power system In order to explain the installing operation we assume that there is a house that the usual electricity consumption is about SKWH per day and the real irradiation time i
18. ngbo National Hi Tech Park Sunshine Technology Co Ltd masspoweR Green world Clean world Introduction of Sunshine Grid Tie Inverter Sunshine Grid Tie Power Inverter is the world s most technologically advanced inverter for use in utility interactive applications This manual details the safe installation and opera tion of the Sunshine Grid Tie Inverter This integrated system maximizes energy harvest increases system reliability and implifies design installation and management The small type solar grid tie power inverter can obtain the solar energy from solar panel and can tie to the grid through its output cables with no extra equipment The installation is very convenient and reliable We call the system combining with small solar grid tie inverter and solar panels as SGPV The system includes solar panels and small type grid tie inverter and installation kit Solar panels can be mono silicon polygon silicon non crystal film or any other material that can transform solar energy to electric energy The power of grid tie inverter should be matched to the power of solar panels connected So the power of SGPV is defined by its solar panels it can be standardization according to the actual using The inverter can be connected to any outlets of utility grid at house The small grid tie inverter monitors the volume frequency and phase of the home utility grid then produce pure sine wave AC power that the frequency and phase are a
19. nnecting method of the solar panels then you can select a correct model of inverter The input DC voltage range of the inverter should fit the DC output voltage of the solar panel array the rated power of the inverter should also fit the total power of the solar panel array and the AC output of the inverter should fit the standard of AC utility grid Ningbo National Hi Tech Park Sunshine Technology Co Ltd masspoweR Green world Clean world Table 2 American Wire Gauge AWG Cables Conductor Sizes and Properties AWG Diameter Diameter Area Resistance Resistance Max Current Max Frequency inches mm mm2 Ohms 1000 ft Ohms km Amperes or 100 skin depth 0 322424 0 2893 i i 0 406392 0 2576 l 0 512664 0 64616 0 81508 4 62026 1 027624 4 1148 i 1295929 3 06522 l 1 634096 3 2639 2 060496 2 90576 f 2 598088 S O O OO NO K CO 10 44352 a SS co CO SI 0 ne NOK WMO paa 13 17248 16 60992 18 20 9428 iis 20 21 22 23 24 i i i 25 f 1 06 1736 26 i l 133 8568 ZU 168 8216 28 i 212 872 29 l 268 4024 30 l l l 338 496 31 l i i 426 728 32 l i i 538 248 33 l l i 678 632 34 l i 855 92 39 36 om 0 0031 0 07874 0 00501 1049 3440 0 0137 2900 kHz 12 Ningbo National Hi Tech Park Sunshine Technology Co Ltd masspoweR Green world Clean world IS Step5 Installing Solar Panels to suitable place Installing the solar panels
20. of the SGPV to suitable location that sunshine can irradiate on them there must have no shadow the installation direction of the solar panels should be according to the geography position that the system will be installed different position should has different installation direction the principle is to get maximum irradation in all the year round Warning Ensure that there is no shadow at the location that solar panels will be installed because even the shadow just covers only one cell of solar panel maybe will cause total system stop to produce power Warning Ensure using strong braket to fix the solar panels to avoid the danger under high wind TS steps Installing Sunshine Grid Tie Inverter to suitable place Place the Sunshine Grid Tie Inverter on a surface protected from direct sunlight high temperatures and water The inverter requires at least 150mm of clearance around itself for ventilation The inverters are for indoor use can t use at outdoor You can use screws to fix the inverter to the surface because some models of Sunshine grid tie inverter have fans on the bottom cover so the surface should be flat a Step7 Connecting the Sunshine Grid Tie Power System with Cables and Connectors After finished from Step1 to Step6 you should connect the solar panels and inverters with cables and connectors to integrate the Sunshine Grid Tie System Step8 Grounding the system Route a continuous GEC through each of the solar pane
21. output voltage of solar panel or solar panel array c when this red LED is flashing fastly this indicates that the DC input voltage is too high you should adjust the connecting method according to the descripition in this manual WARNING Never disconnect the DC wire connectors under load Ensure that no current is flowing in the DC wires prior to disconnecting An opaque covering may be used to cover the module prior to disconnecting the module gt
22. rid tie power system is according to your power consumption in the site that you want to install or how much power that you want it to feed to the utility grid Actually the volume is just according to your willingness because when the total power of electric appliances that are being used in the installation site is larger than the output power of the grid tie power system these power from the system will be consumed in the site this will slow down the power meter otherwise the difference of the output power from the system between the total used power of the appliances will feed to the utility grid For example if you want to install a grid tie power system in your house you could decide the total power volume according to the total power the appliances that you use in your house maybe the consumption of total energy in per day is about SKWH then you should realize the real irradiation time in per day at your site actually the real irradiation time is an average result because it will vary every day according to the climate just assume the time is 6 hours so you can install a 1KW grid tie power system with this capacity of the system it can supply all power consumption in whole year When grid tie power system is working sometimes there is extra power feed to utility grid if the power from the grid tie system is larger than the power consumed by the appliances in your house and sometimes will not when it is not larger Of course you
23. s not to every panel but there is difference between every panel so not every panel is working at the maximum power this will reduce the total power of these panel in series But SGPV has no such disadvantage Because every inverter of SGPV has MPPT function so every panel is working at the maximum power this will increase the efficiency of the entire system 5 Low power consumption Most of the parts in the small grid tie inverter are digital ICs and low power MCU so the power consumption of it is low though the quantity of grid tie inverters is increased but this will not increase the power consumption much of the entire system Ningbo National Hi Tech Park Sunshine Technology Co Ltd masspoweR Green world Clean world Sunshine Grid Tie Inverter Installation Follow the instructions in this section to install Sunshine Grid Tie Inverters gt PPPP Pb VVARNING Before installing the Sunshine Grid Tie Inverter read all instructions and cautionary markings in the user manual on the Sunshine Grid Tie Inverter and on the photovoltaic array WARNING Perform all electrical installations in accordance with all local electrical codes and the National Electrical Code NEC WARNING Connect the Sunshine Grid Tie Inverter to the electrical utility grid only after receiving prior approval from the utility company WARNING Be aware that only qualified personnel should connect the Sunshine Grid Tie Inverter to the electrical u
24. s about 5 hours 1 Considering the total capacity of the grid tie power system that you need As we stated at Step1 we can get a result that a 1kW Sunshine Grid Tie Power System is suitable for this house so we will establish a 1KW gird tie power system step by step we also assume that we will install the system in the house where the utility grid is 230V 50Hz 2 Choosing applicables Solar Panels Because the most popular solar panels are 240Wp 250Wp poly panels with 60 PCS solar cells so choosing this kind type panels will be more economical The system is 1KW power system so we should use 4 PCS 240VVp to 250Wp solar panels Most of this kind type solar panels have similar specification shown below Module Efficiency 14 8 Pmax 245W Vmp 29 4V Imp 8 34A Voc 36 9V Isc 8 68A so use 4 PCS of this type panels we can get total power TPmax 245Wpx4 980Wp from these solar panels it is suitable for 1KVV SUN 1000G model inverter U Notes The Pmax specification of solar panel is under STC the actual power is variational according to the irradiation on the panel and the temperature surroundings The real output power can t reach Pmax at most time in whole day 3 Selecting Accessory for Grid Tie Power System installation Because we should connect 4 PCS solar panels to Sunshine Grid Tie Inverter so some connectors are necessary Consider of the Voc Vmp and Isc we choose some MC4 connectors and some connectors for parallel connectin
25. s same as the grid s and the volume is a bit higher than the grid s then according to the current controlled PWM to control the output power to the grid The small grid tie inverter just puts out power when the home grid is on When the sun shines the PV panel will produces DC voltage and the grid tie inverter will change the DC voltage to AC voltage and puts out power to the home grid When the total power of electric apparatus that are using in the house is larger than the output power of the inverters these power from the inverters will be consumed in the house this will slow down the power meter otherwise the difference of the output power of the inverter between the total used power of the apparatus will go out from the house to the out grid er A N a Aei a Ta FIF Fig 1 A Small Grid Tie Power System with the Sunshine Grid Tie Inverter Ningbo National Hi Tech Park Sunshine Technology Co Ltd masspoweR Green world Clean world Advantage of The Sunshine Grid Tie Power System There are many advantages of SGPV compare with the traditional grid tie power system 1 Low cost and easy installation SGPV can make full use of all types of buildings surface that face to the sun in the city as well as fast and easy installation of solar modules and grid tie inverter It just needs very low maintenance costs 2 Free combination SGPV can be used as a separate grid tie system and can be setup as a large solar array wit
26. stem to three phases just seperate the whole power system to three equal power system units starting DIY from small grid tie power system If you never have experience of installing grid tie power system before you can start DIY do it by yourself from small grid tie power system The smallest power of SUN series grid tie power inverter is SUN 250G this is a small power inverter that the rated output power is 225W and the peak power can reach 250W so you can establish a small capacity grid tie power system with this model inverter and a big solar panel or two smaller solar panels the total Pmax of solar panels should be less than 250Wp its very easy to install this kind small system just need DC cables and few connectors to connect the system For example you can choose a 245VVp solar panel or two 120VVp solar panels to connect with SUN 250G inverter 250VVp Solar Panel Outlet of Utility Grid SUN 250G X X Installing a 250W gird tie power system with a SUN 250G grid tie power inverter and a 250Wp solar panel DC Input Panel AC Output Panel Fig 9 250W grid tie power system with one solar panel i Ningbo National Hi Tech Park Sunshine Technology Co Ltd masspoweR Green world Clean world 2x120VVp Solar Panel Outlet of Utility Grid SUN 250G X X Installing a 250W gird tie power system with a SUN 250G grid tie power inverter and two 125Wp solar panels DC Input Panel AC Output Panel Fig 10
27. tility grid WARNING Be aware that installation of this equipment includes risk of electric shock Normally grounded conductors may be ungrounded and energized when a ground fault is indicated WARNING This unit is provided with fixed trip limits and shall not be aggregated above 30 kW on a single Point of Common Connection Ningbo National Hi Tech Park Sunshine Technology Co Ltd masspoweR Green world Clean world Installation Procedure Installing Sunshine Grid Tie Power System involves several key steps Considering the total capacity of the grid tie power system that you need Choosing applicable solar panels for Sunshine Grid Tie Inverter Selecting accessory for installation of the Grid Tie Power System Selecting correct model of Sunshine Grid Tie Inverter Installing solar panels to suitable place Installing Sunshine Grid Tie Inverter to suitable place Connecting Sunshine Grid Tie Power System with cables and connectors Grounding the system Completing Sunshine installation map and Connecting the PV modules oe oe oS kas TI Each of the detailed installation steps in the following sections is numerically referenced in the installation diagram below WARNING DO NOT connect Sunshine Grid Tie Inverters to the utility grid or energize the AC circuit s until you have completed all of the installation Step1 Considering the total capacity of the grid tie power system that you need The total capacity of the whole g
28. tion of this switch when the inveter is connected to the utility grid You must pull out the AC plug of the AC cables from the utility grid before you change the position of the switch otherwise the inverter will be damaged SUN 1500G X X SUN 2000G X X With LCD Displayer layout please see the Fig 14 0 Q DC Output Panel Fig 14 SUN 1500G X X SUN 2000G X X Layout D DC Input Positive Terminal This terminal will connect to the positive wire of solar cables that connected with the positive pole of the solar panels 2 DC Input Negative Terminal This terminal will connect to the negative wire of solar cables that connected with the negative pole of the solar panels 3 LCD Displayer LCD Displayer has severial functions 1 Electric parameters measurement function voltage current active power and electric energy 22 Ningbo National Hi Tech Park Sunshine Technology Co Ltd masspoweR Green world Clean world 2 Running time function record load cumulative working hours 3 Backlight function 4 Power down data save function save the number of kWh operation time 5 Large screen LCD display display voltage current active power electric energy cumulative running time 4 LCD Displayer Function Selecting Buttons UP Short press will display power electric energy current and voltage in anti sequence DOWN Short press will display power electric energy current and voltage in sequence BACK L
29. tline Drawing ppe Fig 18 SUN 1500G X X Outline Drawing il li ma Je i Fig 19 SUN 2000G X X Outline Drawing DC Input Panel 29 Ningbo National Hi Tech Park Sunshine Technology Co Ltd mAsspover Green world Clean world Weight and Dimension of SUN series Grid Tie Power Inverter Gross Weight 1 8Kg 3 8Kg 4 8Kg 5 0Kg 6 0Kg Troubleshooting After all installation step described throughout this manual Qualified personnel can use the following troubleshooting steps if the Sunshine Grid Tie Power System does not operate correctly WARNING Do not attempt to repair the Sunshine Grid Tie Inverter it contains no AN user serviceable parts If it fails please contact Sunshine customer service to obtain an RMA number and start the replacement process Status LED Indications and Error Reporting Each grid tie inverter has a red LED that indicates status as follows a When the red LED is on all time this indicates that the AC output cables is not connected with the utility grid or the AC voltage or frequence of the utility grid is out of the range of the specification of the inverter Please check the AC cables and the outlet of the utility grid you can use a multi meter to measure the AC voltage or frequency then you can judge vvhat s wrong about the AC output b When this red LED is flashing slowly this indicates that the DC input voltage is too low or the DC connection is not good You should measure the
30. when selecting solar panels are Pmax Voc Vmp and ISC 1 The total Pmax of solar panels should be equal to or less than the Rated Power Peak of the inverter that you will connect 2 The total Voc of solar panels should be less than the maximum point of the DC input range of the inverter it is according to the connecting method if you connect solar panels in parallel all panels must have same Voc the Pmax of each panel can be different or same so the total Voc is as same as one Voc but if you connect solar panels in serial the Isc of each solar panel must be same the Pmax of each panel can be different or same so the total Voc is the summation of all solar panels connected in serial Connecting solar panels with same specifications in a single system is the best choice 3 The total Vmp of solar panels should above the minimum point of the DC input range of the inverter The connecting method principle is as same as item 2 above Step3 Selecting Accessory for Grid Tie Power System installation The accessory for grid tie power system including 1 DC cables will be connected with solar panels and inverters 2 Connectors 3 AC cables 4 Power meter Optional 5 Bracket for solar panels installation not included in this user manual 10 Ningbo National Hi Tech Park Sunshine Technology Co Ltd masspoweR Green world Clean world Selecting DC cables Before you connect the solar panels to inverter suitable specification o
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