Product Manual SP-SP-2.0-EN

Transcription

1 TM SAMIL POWER Expert for PV Grid-tied Inverters SolarPond Product Manual SP-SP-2.0-EN

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3 Copyright Declaration The copyright of this manual belongs to Samil Power Co., Ltd. Any corporation or individual should not plagiarize, partially copy or fully copy it (including software, etc.), and should not reproduce or distribute it in any form or by any means. All rights reserved. Samil Power reserves the right of final interpretation. This manual changes according to user s or customer s feedback. Please check our website at the latest version. 01

4 CONTENTS 1 Notes on This Manual 1.1 Scope of Validity 1.2 Target Group 1.3 Important Safety Information 1.4 Important Safety Instructions 1.5 Symbols Used Symbols in the Manual Symbols on the Inverter 1.6 The parts of SolarPond 2 The SolarPond series Inverter System 2.1 New Features 2.2 Advantage of SolarPond MPPT 2.3 Protection Function 2.4 Dimension 2.5 Product Label 3 Installation 3.1 Check the packing 3.2 Check the packing List 3.3 Preparation 3.4 Select installation location 3.5 Mounting the inverter 3.6 AC Connection 3.7 AC disconnect switch or Junction Box 3.8 Protection downstream of the inverter 3.9 DC Connection 4 Commissioning 5 Troubleshooting 5.1 Troubleshooting 5.2 Disconnecting the Inverter from the PV Module 5.3 Troubleshooting Tips 6 Technical Data 6.1 DC Parameters 6.2 AC Parameters 6.3 Efficiency 6.4 General data Appendix System Wiring Diagram

5 Notes on This Manual 1 Notes on This Manual This manual is an integral part of the inverter. Please read the product manual carefully before installation, operation or maintenance. Keep this product manual for future reference. 1.1 Scope of Validity This product manual describes the assembly, installation, commissioning, and maintenance of the SolarPond 240HF. 1.2 Target Group This manual is meant for qualified electricians. The tasks described in this manual must only be performed by qualified electricians. 1.3 Important Safety Information Before installation or operation, please read the manual, or contact the local distributor. Please visit the company website: for more information. 1.4 Important Safety Instructions When using the product, please remember the following instructions: Read all instructions and cautionary markings on the SolarPond series inverter, and all appropriate sections of this guide. Perform all electrical installations in accordance with all local and National Electrical Codes (NEC), like ANSI/NFPA 70. Only qualified personnel should install and/or replace SolarPond series inverters. Do not attempt to repair the SolarPond series inverters; it contains no user serviceable parts. If it fails, please return the unit to your distributor for maintenance. Tampering with or opening the SolarPond series inverters will affect the warranty. Connect the SolarPond series inverter to the electrical utility grid as per local regulations which may include prior written approval from the utility company. 03

6 Notes on This Manual 1.5 Symbols Used Symbols in the manual Some symbols are used in this manual in order to ensure personal and property safety. Please read and understand the following symbols carefully. Danger indicates a hazardous situation which, if not avoided, will result in death or serious injury. Warning indicates a hazardous situation, if not avoided, could result in minor or moderate injury. Note provides tips that are valuable for the optimal operation of the product Symbols on the inverter Symbol Explanation Beware of hot surface. The inverter can become hot during operation. Avoid contact during operation. Danger of high voltages Danger to life due to high voltages in the inverter! Caution, risk of electric shock! Only authorized personnel are allowed to set the DIP switch. This indicates the degree of protection of the equipment according to IEC standard 70-1 (EN June 1997). This points out that it is mandatory to consult the manual or original document, which must be available for future use and must not be damaged in any way. This indicates the allowed temperature range. The protective class is the first-class. 04

7 Notes on This Manual & The SolarPond series Inverter System 1.6 The parts of SolarPond No Description Fixing Slots Ground clamp DC- Connector DC+ Connector AC Connector LED 2 The SolarPond series Inverter System The plant is composed by a group of MICRO-inverters that convert direct electric current from a photovoltaic module into alternating electric current and feeds it into the national grid. Photovoltaic panels transform energy from the sun into direct current (DC) electrical energy; however, to feed the grid and so that this energy can be used, it has to be transformed into alternating current (AC). This conversion, known as DC to AC inversion, is made efficiently without using rotating parts and only through static electronic devices. In order to allow inverter operation in safe thermal and electrical conditions, in the event of adverse environmental conditions or unsuitable input voltage values, the unit automatically reduces the value of the power fed into the grid. When used in parallel with the grid, the alternating current generated by the inverter flows directly into the domestic electrical circuit, which is in turn connected, through a load distribution panel, to the grid. 05

8 The SolarPond series Inverter System The solar energy system therefore powers all connected electrical devices, from lighting to household appliances, etc. When the photovoltaic system is not supplying sufficient power, the power needed to ensure normal operation of the connected electrical devices is drawn from the grid. If, on the other hand, excess power is produced, this is fed directly into the grid, so becoming available to other consumers. In accordance with local electric utility regulations, the power produced can be sold to the grid or credited towards future consumption, bringing about a saving of energy. The key elements of a SolarPond series inverter based system are: SolarPond series inverter SolarWatcher100(SW100) SolarWatcher Manager Photovoltaic modules Microv-inverters SolarWatcher100 SolarRepeater(optional) Ethernet cable Meter Router SolarWatcher Manager This integrated system maximizes energy harvest, increases system reliability, and simplifies design, installation and management. 2.1 New Features Max. efficiency of 96% EURO Efficiency of 94.5% CEC efficiency of 95.5% 06

9 The SolarPond series Inverter System MPPT efficiency of 99.5% HF transformer Advanced monitoring Outdoor installation&wide operate temperature Excellent protection Simple installation 2.2 Advantage of SolarPond MPPT The SolarPond series inverter maximizes energy production from your photovoltaic (PV) array. Each SolarPond series inverter is individually connected to one PV module in your array. This unique configuration means that an individual Maximum Power Point Tracker (MPPT) controls each PV module. This insures that the maximum power available from each PV module is exported to the utility grid regardless of the performance of the other PV modules in the array. That is, although individual PV modules in the array may be affected by shading, soiling, orientation, or module mismatch, the SolarPond series inverter ensures top performance of each associated PV module. The result is maximum energy production from your PV system. 2.3 Protection Function Anti-islanding protection When the local power grid shuts down because of failure or equipment maintenance, SolarPond series inverter should be physically disconnected safely so as to protect any personnel working on the grid, in full compliance with the applicable prevailing national standards and regulations. More equipment protection SolarPond series inverter can run safely in any working condition because of the following protections: When the ambient temperature is beyond the design operating range, inverter will limit power automatically; Continuous monitoring of power grid to ensure that the voltage and frequency are in the standard range; short-circuitprotection, and over/low voltage protection. 07

10 The SolarPond series Inverter System 2.4 Dimensions AC mm 230 mm 150 mm 34.5 mm Note! The DC or AC Cable cannot be bent excessively. The minimum bending radius is 5 times of cable diameter. If the bending radius is too small to damage the cable, it will not be include in warranty. 2.5 Product Label Product label attached to the back of the inverter provides basic information of the unit. Do pay special attention to the type of inverter and other specifications. 08

11 The SolarPond series Inverter System & Installation Note! There are two S/N labels on the SolarPond. One is at the bottom of the SolarPond and another is on the product label. The label at the bottom is used for assemble diagram. 3 Installation 3.1 Check the Packing Outer packing Check the delivery for completeness and for any visible external damage. Contact Samil Power if anything is damaged or missing. 3.2 Check the Packing List Before installing, please check the accessories. Check the delivery for completeness and for any visible external damage. Please ensure that the box contains all the materials mentioned in the packing list. If any item is missing or damaged please contact Samil Power immediately. The following is the list. Item Inverter Set of screw Packing list Manual Warranty card Certification card Value Preparation Following tools are needed for installation. Grounding cable Screwdriver 1/2 and 9/16 inch socket wrenches Wire cutters Wire strippers 09

12 Installation Warning! A. The SolarPond must be installed by professional engineer or trained installer. B. Disconnect the AC power before installing the SolarPond. 3.4 Select Installation Location The SolarPond inverters can be installed outdoors, but only in environmental conditions that do not prevent its regular operation. These conditions are reported on the technical data and on installation chapter. SamilPower CANNOT be held responsible for disposal of the equipment: displays, cables, batteries, accumulators, etc., and therefore the customer must dispose of these substances, which are potentially harmful to the environment, in accordance with the regulations in force in the country of installation. When checking environment, please Consult the technical data to check the environ mental parameters to be observed (degree of pro tection, temperature, humidity, altitude, etc.) Do not expose to direct sunlight to avoid unwanted power derating due to an increase in the internal temperature of the inverter. To avoid overheating, always make sure the flow of air around the inverter is not blocked. Do not install in places where gases or flammable substances may be present. Avoid electromagnetic interference that can com promise the correct operation of electronic equipment, with consequent situations of danger. 10

13 Installation When choosing the place of installation, comply with the following conditions: Install only on structures specifically conceived for photovoltaic modules (supplied by installation technician). Install micro-inverter underneath the photovol taic modules so that they work in the shade. If this condition cannot be met, the inverter could likely undergo derating. (Such as the following picture) The inverter is suggested to install underneath the PV module Any maintenance or replacement of the device could require the technician to dismount the photovoltaic module mounted on top of the MICRO-inverter. This condition must be accounted for during installation, ensuring that the safety distances are correct for normal control and maintenance operations. The distance between MICRO-inverters installed on the same system array depends on the type of photovoltaic modules and their orientation (Landscape or Portrait). Choose the best solution to employ during the project planning stage, bearing in mind that the selected configuration will influence the correct type of AC cable interwoven among the connectors. 11

14 Installation 3.5 Mounting the Inverter Step 1: Mount the SolarPond series inverter at the appropriate location of the rack. Step 2: Insert the T-headed bolt through junction box and rack holes and tighten flange nut. Step 3: Insert the T-headed bolt with grounding clamp through junction box and rack holes, and tighten flange nut. Note! Distance between inverter and roof must be more than 20mm and avoid inverter to be exposed under direct sunshine. Step 4: Record the location of the inverter. Tear off the S/N number label in the bottom of each inverter and affix to the right position depended on the installing position on the diagram which is attached in the appendix B. 3.6 AC Connection Step 1: Check the AC TRUNK BUS cable and tools are complete. There are two types AC TRUNK BUS cable for different installation of module. 12

15 Installation AC-TRUNK-BUS Phase brown or black Neutral blue or white Ground yellow or green 1.05m 41" 1.70m 67" 2.05m 81" 1.05m 41" 1.70m 67" 2.05m 81" The detail of the AC TRUNK BUS cables 1.05m 41" 1.05m 41" AC-TRUNK-BUS 1.05m 41" 1.70m 67" 1.70m 67" AC-TRUNK-BUS 1.70m 67" The usage of AC TRUNK BUS cables AC-TRUNK PLUG CAP AC-TRUNK UNLOCK TOOL The tools for the AC TURNK BUS 13

16 Installation Step 2: Prepare the AC cable. There are three basic conditions. 1. Single cable In this condition, a male or female bus extension connector and a corresponding end cap are necessary. 2. Two pieces or more cables In this condition, a couple bus extension connectors are used. One couple bus extension connectors can connect two cables. 3. Extend the cable length In this condition, there are three cables for connection. So two couples bus extension connectors will be used. Note! The cable marked to extend the cable length could be used the common cable. 14

17 Installation AC-TRUNK-BUS EXTENSION-male-3pins AC-TRUNK-BUS CAP-male-3pins The bus extension male connector and corresponding end cap AC-TRUNK-BUS EXTENSION-female-3pins AC-TRUNK-BUS CAP-female-3pins The bus extension female connector and corresponding end cap AC-BUS-EXTENSION UNLOCK TOOL The unlock tool for the bus extension connector 15

18 Installation Step 3: Connect the Cable to the AC Junction Box. Note! The junction box is supplied by the customer or installer. Mount the junction box at the end of rack, ensure that the hole on the junction box match the corresponding hole on the rack. Insert the T-headed bolt through junction box and rack holes and tighten the flange nut. The AC TRUNK BUS cable can connect to the AC cable outgoing from the junction box through the bus extension connector. 16

19 Installation Step 4: Connect the grounding cable. Fix stuck the copper wire into grounding clamp. Tighten the bolt of grounding clamp to fix the copper wire. Note! The cross section of ground cable must be over 10 mm 2. Make sure the quality of bond which is used to tie up it and AC cable to the rail. Earthing lug component 17

20 Installation 10mm 2 10mm 2 10mm 2 Step 5: Connect the inverter and AC cable. Remove the temporary cap from AC cable connectors and then connect the MICRO-inverters. The connectors are coupled correctly when two clicks are heard The steps of removing caps from AC cables 18

21 Installation Connect the MICRO inverter s output cable to the AC TRUNK BUS cable The steps to disconnect the inverter s output cable Note! If the terminals of AC cable are more than the inverter s number, the unconnected terminal should be covered with insulated cap. 3.7 AC Disconnect Switch or Junction Box To protect each AC connection line of the MICRO-inverter, we recommend installing a device for protection against over current. It is the installer s responsibility to adequately size the overcurrent protection, based on micro-inverter number and types in the system (see table below). The maximum thermal-magnetic circuit breaker current rating is 20A for each AC line. The line cable is not supplied from SamilPower and is the one between the junction box and the load distribution panel. The cross-section of the AC line conductor must be sized in order to prevent unwanted disconnections of the inverter from the grid due to high impedance of the line that connects the inverter to the load distribution panel; In fact, if the impedance is too high, it causes an increase in the AC voltage that, on reaching the limit set by the country of installation, causes the inverter to switch off. 19

22 Installation Protection breaker rating (A) Number of SolarPond 240HF that can be installed AC line cross section (mm 2 ) Line maximum length (m) Allowable voltage loss (<1.5%) Line maximum length (m) Allowable power loss (<1%) Danger! To prevent electrocution hazards, all the connection operations must be carried out with the disconnect switch downstream of the inverter (grid side) open and locked. When connecting to the grid, all the SamilPower AC cables coming from MICRO-inverters must be joined inside an insulated junction box (IP65). From the junction box must exit the line cable (or more than one) connected to the load distribution panel (containing protection devices) which is connected to the distribution grid. Be particularly mindful of the dimensions of the line cable (not supplied from SamilPower). All the external connections to the insulated junction box (caps, adapters, etc.) must be made with securely-sealed SamilPower components. The inverter is not provided of automatic disconnection devices from the distribution grid. This means that an external protection able to physically disconnect the MICRO-inverters from the grid has to be expected in accordance with the regulations in force and with the requirements of the electricity distributor in the country of installation. 3.8 Protection Downstream of the Inverter 20 When the PV inverter is not in terms of its construction such as to put continuous ground fault current (cc) into the electrical system, a differential switch of type B is not required according to IEC 60755/A 2. Samil Power s micro inverters with a high frequency transformer are equipped with an isolation transformer for each of the DC/DC converters which operate at high frequency (switch-over frequency of the converter). This transformer allows for high frequency galvanic isolation between the DC and AC side of the system. In addition to this the inverters include protection mechanisms so that they cannot input ground fault currents.

23 Installation SamilPower Co,. Ltd. declares that the SolarPond 240HF high-frequency isolated inverters are in terms of their construction continuous ground fault currents and therefore, in accordance with Article of Section 712 of CEI 64-8/7 Norms there is no requirement that the differential installed downstream of the inverter is type B in accordance with IEC / A 2. Warning! SamilPower recommends the use of a switch with type A differential magneto thermal protection with IΔn=30mA sensitivity. Also: The inverter does not include any electromechanical devices (relays, contactors, etc.) for automatic disconnection from the power grid. The system must therefore be provided with external protection for the physical disconnection of the MICRO inverters from the grid, in com-pliance with the applicable regulations and with the requirements of the installation country s power distributor. Such protection is typically composed of an interface protection system that analyses and controls the grid parameters and, if necessary, sends commands to the interface device, in charge of physically disconnecting the PV installation MICRO inverters line. 3.9 DC Connection Step 1: Ensure open-circuit voltage of PV arrays is<48v. Use Multi-meter to measure module array voltage before connecting Warning! Excessive voltages can destroy the multi-meter. Only use multi-meter with a DC input voltage range up to at least 100 V. 21

24 Installation Step 2: Put the positive and negative connector into the terminals on the inverter. Step 3: Then install the PV module Use only PV modules with excellent performance and reliable quality. Open-circuit voltage of modules connected in series should be less than 85% of Max. DC input voltage of the inverters (At 25, refer to Chapter 5). The operating voltage at all times should be within the MPPT voltage range. The MPP-current of panel strings should be less than 90% of Max. DC current(at 25, refer to Chapter 5). The input terminal of SolarPond is only used for PV module. Samil Power declines any responsibility in case the damage of SolarPond is caused by connecting to battery or other DC Source. 22

25 Installation 01 Bus Extension Connectors (AC-TRUNK-BUS EXTENSION) 02 Junction Box 03 AC Connector 04 Unlock Tool (AC-TRUNK UNLOCK TOOL) 05 Temporary Cap 06 Insulated AC Cap (AC-TRUNK PLUG CAP) 07 End Cap Female (AC-TRUNK EXTENSION CAP) 08 End Cap Male (AC-TRUNK-EXTENSION CAP) 09 AC Cable (AC-TRUNK-BUS) 10 Photovoltaic Module 11 DC Connectors 12 Micro-inverter AC Cable 13 Frame 14 Micro-inverter 15 Ground Wire The micro inverter system 23

26 Commissioning & Troubleshooting 4 Commissioning Warning! Connect the inverter to the electrical utility grid as per local regulations which may include prior approval from the utility company. Be aware that only qualified personnel must connect the inverter to the electrical utility grid. Ensure that all AC and DC wiring is correct. Ensure that none of the AC and DC wires are pinched or damaged. Ensure that all junction boxes are properly closed. To commission the inverter PV system: 1. Turn ON the AC switches of each AC circuit junction box. 2. Turn ON the main utility-grid AC circuit breaker. The system will start producing power after a five-minute wait time. 3. Verify operation and production by reading the display on the LCD panel of the SW100. Please refer to the SW100 Installation and Operation Manual for information on the SW Troubleshooting Warning! Do not attempt to repair the inverter; it contains no userserviceable parts. If it fails, please return the unit to your distributor for maintenance. Be aware that only qualified personnel should troubleshoot the PV array or the inverter. The inverters are powered both by AC power from the utility grid and DC power from the PV modules. Make sure you disconnect both the AC and the DC connections and reconnect either AC or DC power to hear the six start-up beeps. Always disconnect AC power before disconnecting the PV module wires from the inverter. The AC connector of the first inverter in a branch circuit is suitable as a disconnecting means once the AC branch circuit breaker in the load center has been opened. 24

27 Troubleshooting 5.1 Troubleshooting To troubleshoot in case of a faulty inverter, follow the steps in the order shown: 1. Check the connection to the utility grid. Verify the grid voltage and frequency to ensure that these are within allowable ranges shown in the Technical Data section. Verify utility power is present at the inverter in question by removing AC, then DC power. Never disconnect the DC wires while the inverter is producing power. Re-connect the AC power conductor and listen for six short beeps. 2. Check the AC branch circuit interconnection between all the inverters. Verify each inverter is energized by the utility grid as described in the previous step. 3. Make sure that all the AC switches in the junction boxes are functioning properly and are closed. 4. Verify the PV module DC voltage is within the allowable range shown in the Technical Data section. 5. Check the DC connections between the inverter and the PV module. 6. If the problem persists, please call customer support at SamilPower. 5.2 Disconnecting the Inverter from the PV Module To ensure that the inverter is not disconnected from the PV modules under load, adhere to the following disconnection steps in the order shown: 1. Turn off the AC disconnect on the AC branch circuit junction box. 2. Turn off the utility-grid AC circuit breaker. 3. Disconnect the AC branch circuit connector(s). 4. Using a DC current probe, verify there is no current flowing in the DC wires between the PV module and the inverter. 5. If there is measurable DC current, cover the PV module connected to the inverter with an opaque material. 6. Disconnect the PV module DC wire connectors from the inverter. 7. Remove the inverter from the PV array racking. 25

28 Troubleshooting 5.3 Troubleshooting Tips Fault in the SolarWatcher 100 ac-freq-oor ac-voltage-oor DC Over Voltage Code Description and Solution Description: The grid frequency is out of range. Recovery: The value of Grid Frequency that inverter detected goes back to its operating range. Solution: Exchange the inverter when the grid frequency is in the operating range. Description: The grid voltage is out of range. Recovery: The value of grid voltage that inverter detected goes back to its operating range. Solution: Exchange the inverter when the grid frequency is in the operating range. Description: The input voltage is over the max. voltage of the inverter Solution: (1) Select the right panel. The parameter of the panel is suitable of the inverter. (Refer to chapter 5) (2) The special environment conditions maybe cause the voltage of panel too high. Such as low temperature or strong irradiance. It will recover to work automatic. (3) Exchange the inverter when get rid of the up two reasons. 26

29 Troubleshooting Continued: DC Under Voltage Grid Gone Grid Instability Description: The input voltage is under the min. voltage of the inverter Solution: (1) Select the right panel. The parameter of the panel is suitable of the inverter. (Refer to chapter 5) (2) Weak irradiance. When the irradiance is stronger, it will recover to work automatic. (3) The panel is in the shadow. Remove the block. (4) Exchange the inverter when get rid of the up three reasons. Reserved. Description: The inverter cannot connect to the grid or the voltage of grid is 0. Recovery: The inverter connects to the grid or the voltage of grid is recovered. Solution: Exchange the inverter if the grid is OK. Description: The grid quality is terrible. The voltage, frequency or the wave of voltage can cause this fault if they are terrible. Recovery: The value of Grid quality turns to fine. Solution: Exchange the inverter when the grid has turned to fine. Over Temperature 08 Description: The temperature is over the max. Temperature of the inverter. 27

30 Troubleshooting Continued: Recovery: The value of Temperature that inverter detected goes back to its operating range. Solution: (1) The location of inverter is in the direct sunlight. Move the inverter to the shadow of the panel. (2) The ambient temperature is too high. When the temperature is lower, the inverter will recover to work automatic. (3) Exchange the inverter when get rid of the up two reasons. Fault in the SolarWatcher Manager AC Frequency Out of Range AC Voltage Out of Range Code Description and Solution Description: The grid frequency is out of range. Recovery: The value of Grid Frequency that inverter detected goes back to its operating range. Solution: Exchange the inverter when the grid frequency is in the operating range. Description: The grid voltage is out of range. Recovery: The value of grid voltage that inverter detected goes back to its operating range. Solution: Exchange the inverter when the grid frequency is in the operating range. 28

31 Troubleshooting Continued: DC Over Voltage 03 Description: The input voltage is over the max. voltage of the inverter Solution: (1) Select the right panel. The parameter of the panel is suitable of the inverter. (Refer to chapter 5) (2) The special environment conditions maybe cause the voltage of panel too high. Such as low temperature or strong irradiance. It will recover to work automatic. (3) Exchange the inverter when get rid of the up two reasons. DC Under Voltage Grid Gone Description: The input voltage is under the min. voltage of the inverter Solution: (1) Select the right panel. The parameter of the panel is suitable of the inverter. (Refer to chapter 5) (2) Weak irradiance. When the irradiance is stronger, it will recover to work automatic. (3) The panel is in the shadow. Remove the block. (4) Exchange the inverter when get rid of the up three reasons. Reserved. Description: The inverter cannot connect to the grid or the voltage of grid is 0. Recovery: The inverter connects to the grid or the voltage of grid is recovered. Solution: Exchange the inverter if the grid is OK. 29

32 Troubleshooting Continued: Grid Instability 07 Description: The grid quality is terrible. The voltage, frequency or the wave of voltage can cause this fault if they are terrible. Recovery: The value of Grid quality turns to fine. Solution: Exchange the inverter when the grid has turned to fine. Over Temperature 08 Description: The temperature is over the max. Temperature of the inverter. Recovery: The value of Temperature that inverter detected goes back to its operating range. Solution: (1) The location of inverter is in the direct sunlight. Move the inverter to the shadow of the panel. (2) The ambient temperature is too high. When the temperature is lower, the inverter will recover to work automatic. (3) Exchange the inverter when get rid of the up two reasons. 30

33 Technical Data 6 Technical Data 6.1 DC Parameters Inverter Model Max DC power[w] MPPT Voltage Range at Full Load[V] Operating voltage Range[V] Maximum input voltage[v] Turn On Voltage Range[V] Max DC Input Current (RMS)[A] Max Short Circuit Current[A] Ground fault protection[ma] Maximum input source back-feed current to input source[a] SolarPond 240HF ~40 21~ ~ AC Parameters Inverter Model Max AC output power(-40 to 65 )[W] Output Power Factor[%] Nominal Voltage Range at 240V nominal[v] Nominal Voltage Range at 208V nominal[v] Extended Voltage Range at 240V nominal[v] Extended Voltage Range at 208V nominal[v] Maximum AC Output current at 240V nominal[a] Maximum AC Output current at 208V nominal[a] Nominal Frequency[Hz] SolarPond 240HF 240 >95% 230 (Nominal Voltage) 207~264 (Nominal Voltage Range) 1.16 (Maximum AC Output current) 50 31

34 Technical Data Continued: Nominal Frequency Range[Hz] Extended Frequency Range[Hz] Maximum AC output over current protection[a] Maximum AC output fault current & duration[a] High AC Voltage trip limit accuracy[%] Low AC Voltage trip limit accuracy[%] Frequency trip limit accuracy[hz] Trip time accuracy[ms] Maximum inverters per 20amp AC branch circuit at 240V nominal Maximum inverters per 20amp AC branch circuit at 208V nominal Total Harmonic Distortion of current on input (THDI) Power consumption at night[mw] 47.5~52.5 (Nominal Frequency Range) Arms over 3 cycles, 37.8Apeak 1.74ms duration ±2.5% ±2.5% ±0.05 ±20 17 (at 230V nominal) <5% Efficiency Inverter Model MAX Efficiency[%] EURO Efficiency[%] CEC Efficiency[%] MPPT Efficiency[%] SolarPond 240HF >

35 Technical Data 6.4 General Data Inverter Model Ambient Temperature Range[ ] Ambient Temperature Range at Full Load[ ] Operating Temperature Range (internal) [ ] Storage Temperature Range[ ] Maximum Operating Altitude without Derating[m] Noise[dB] SolarPond 240HF -40 to to to to m 3000m with derating <30dB 33

36 Appendix Appendix System Wiring Diagram METER L N PE AC DISTRIBUTION PANEL GROUND : L NEUTRAL AC JUNCTION BOX 1 3 PV CELL1 PV CELL2 PV CELL N MICRO INVERTER1 MICRO INVERTER2 MICRO INVERTER N AC CABLE SOCKET SolarWatch 100 : : 34

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40 SAMIL POWER CO., LTD. Sales and Service Center Add: No.52, Huigu Innovation Park, Huishan District, Wuxi Jiangsu Province, P.R.C Tel: Fax: Samil Power Service Contact Information Samil Power Service Australia Support Center : / Service-australia@samilpower.com Samil Power Service Deutschland Support Center : Service-germany@samilpower.com Samil Power Service Italia Support Center : Service-italy@samilpower.com Factory Add: No.6, Xuefengshan Road, Suqian High-tech Industrial Development Zone, Jiangsu Province, P.R.China Tel: Fax: Samil Power Service United Kingdom Support Center : Service-uk@samilpower.com Samil Power Service Netherlands Support Center : Service-netherlands@samilpower.com Samil Power Service Global Support Center : ext service@samilpower.com