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User Manual

10 Operating the LCD Menu

103

Confirm settings by pressing

ENTER

and enter the

“Setting confirmation” screen.
Check all above-mentioned parameter settings.
Confirm them by pressing

ENTER

. Cancel by pressing

ESC

and reset.

Multi-stage Protective Parameter

Select

“

Multi-stage

”

and

Press



enter into the submenus.

Press



to navigate the cursor;

Press



to enter into the editing mode,

then the selected parameter will be
shaded.

Press



to increase one-step value;

Press



to decrease one-step value.

Press

ENTER

to confirm the setting

and exit from the editing mode.

I-Max-V.time 060.00s

I-Max-V.grid 257.6V

Pro-param Multi

II-Max-V.time 000.10s

II-Max-V.grid 264.5V

Pro-param Multi

I-Min-V.time 000.20s

I-Min-V.grid 184.0V

II-Min-V.time 000.20s

II-Min-V.grid 184.0V

Pro-param Multi

I-Max-F.time 000.20s

I-Max-F.grid 51.50Hz

II-Max-F.time 000.20s

II-Max-F.grid 51.50Hz

Pro-param Multi

I-Min-F.time 000.20s

I-Min-F.grid 47.50Hz

II-Min-F.time 000.20s

II-Min-F.grid 47.50Hz

Tab. 10-13

Multi-stage Protective Parameters Explanation

Parameter

Explanation

Max-V. prote

Over-voltage protection

Ⅰ

-Max-V. grid

Stage

Ⅰ

Grid over-voltage (U>)

Ⅰ

-Max-V. time

Stage

Ⅰ

Grid over-voltage (U>) tripping time

Ⅱ

-Max-V. grid

Stage

Ⅱ

Grid over-voltage (U>>)

Ⅱ

-Max-V. time

Stage

Ⅱ

Grid over-voltage (U>>) tripping time

Min-V. prote

Under-voltage protection

Ⅰ

-Min-V. grid

Stage

Ⅰ

Grid under-voltage (U<)

Ⅰ

-Min -V. time

Stage

Ⅰ

Grid under-voltage (U<) tripping time

Ⅱ

-Min -V. grid

Stage

Ⅱ

Grid under–voltage (U<<)

Ⅱ

-Min -V. time

Stage

Ⅱ

Grid under–voltage (U<<) tripping time

Max-F. prote

Over-frequency protection

Ⅰ

-Max-F. grid

Stage

Ⅰ

Grid over-frequency (f>)

Ⅰ

-Max-F. time

Stage

Ⅰ

Grid over-frequency (f>) tripping time

Ⅱ

-Max-F. grid

Stage

Ⅱ

Grid over-frequency (f>>)

Ⅱ

-Max-F. time

Stage

Ⅱ

Grid over-frequency (f>>) tripping time

Min-F. prote

Under-frequency protection

Ⅰ

-Min-F. grid

Stage

Ⅰ

Grid under-frequency (f<)

Содержание SG10KTL-EC

Страница 1: ...SG8_10_12KTL ECV11 UEN Ver15 201508 Version 1 5 User Manual SG8KTL EC SG10KTL EC SG12KTL EC PV Grid Connected Inverter ...

Страница 2: ......

Страница 3: ...bout the PV system You will get the additional information about other devices at www sungrowpower com or via webpage of device manufacturer Target Group The manual is targeted to technical personnel who is responsible for inverter installation and commissioning in the PV power system and inverter owner who will perform daily LCD operation How to Use This Manual Read the manual and other related d...

Страница 4: ...oided will result in death or serious injury WARNING indicates a hazard with a medium level of risk which if not avoided could result in death or serious injury CAUTION indicates a hazard with a low level of risk which if not avoided could result in minor or moderate injury NOTICE indicates a situation which if not avoided could result in equipment or property damage NOTE indicates additional info...

Страница 5: ...ntil 10 minutes after disconnection from the utility grid and the PV input Hot surface In order to reduce the risk of burns do not touch the hot surface when the device is running Look over the user manual before any operation on the inverter The installation and service of the inverter unit can only be performed by qualified personnel ...

Страница 6: ...cking and Storing 12 3 1 Unpacking and Inspecting 12 3 2 Moving the Inverter 12 3 3 Identifying Inverter 13 3 4 Delivery Contents 14 3 5 Storing the Inverter 15 4 Securing Inverter to the Wall 16 4 1 Selecting Installation Location 16 4 2 Moving Inverter to Installation Site 19 4 3 Installing the Inverter 20 5 Electrical Connection 24 5 1 Overview of Electrical Connection 24 5 2 Terminals Descript...

Страница 7: ...onnection 41 5 7 3 Ethernet Communication Connection 44 5 7 4 Power Control Configuration 47 6 Visiting and Configuring the Webserver 53 6 1 User and Authority 53 6 2 Login Interface 53 6 3 Main Interface 54 6 3 1 Summary Information 54 6 3 2 Detailed Information 55 6 4 Parameter Settings 56 6 4 1 System Parameters 56 6 4 2 Operating Parameters 56 6 4 3 Protection Parameters 58 6 4 4 Communication...

Страница 8: ...75 9 2 1 Routine Maintenance 75 9 2 2 Maintenance Instruction 76 10 Operating the LCD Menu 77 10 1 Description of Button Function 77 10 2 Inverter Menu Structure 78 10 3 Main Screen 79 10 4 Adjusting Contrast 81 10 5 Viewing Detailed Running Information 81 10 6 History Running Information 83 10 6 1 Fault Records 83 10 6 2 History Event Records 83 10 6 3 Running Information Records 84 10 7 Starting...

Страница 9: ...5 3 Protective Parameters Setting for Austria and Vorarlberg 101 10 16 Special Settings for Italy 104 10 16 1 Over frequency Derating Setting for Italy 104 10 16 2 Reactive Power Regulation for Italy 105 10 16 3 Protective Parameters Setting for Italy 107 11 Viewing PV Plant Information 110 11 1 SolarInfo Bank Connection 110 11 1 1 For Common User 110 11 1 2 For Professional User 111 11 2 Registra...

Страница 10: ......

Страница 11: ...he following general safety instructions must be read and always kept in mind prior to any work All detailed work related safety warnings and notes will be specified at the critical points in corresponding chapter All installation and electrical work must be performed only by qualified personnel They have been trained specially already read through and understood the manual and other related docum...

Страница 12: ...the inner contents or anything missing contact the device dealer During Installation Prior to installing the inverter onto the wall it is crucial to make certain that the inverter is not electrically connected System performance loss due to bad ventilation The device requires good ventilation during operation It is essential to keep the device upright and nothing covering the heat sink to ensure t...

Страница 13: ...ter is under voltage There is a highly unlikely risk of explosion in very specific cases of fault The enclosure will protect persons and property from such an explosion only if it is correctly sealed There is a risk of inverter damage or personal injury DO NOT disconnect DC connectors while the inverter is under AC load First de energize the device from dual power sources and then verify that ther...

Страница 14: ...e testing device Keep non related persons away A temporary warning sign and barrier must be posted to keep non related persons away for any period while performing electrical connection and service work Any fault that may impair the inverter safety functions must be repaired immediately before the inverter is restarted Inverter contains no owner serviceable parts inside Please contact local author...

Страница 15: ... wrist band when handling the boards Avoid unnecessary touch with the boards during replacement Others The selected country settings can be changed only by service personnel Unauthorized alternation of the country settings is prohibited Otherwise it may cause a breach of the type certificate marking All safety instructions warning labels and nameplate on the inverter body Must be clearly visible M...

Страница 16: ...ng the upper limit of feed power the inverter will run with power derating once the meter detects that the output power is greater than the set value Any other or additional usage is not permitted except the intended usage Where the positive or negative terminal of PV strings needs to be grounded inverter cannot be connected to PV modules Grid Dispatch Center K Control signal Household Load A B C ...

Страница 17: ...p running information and configuring parameters 2 Side grips The side grips are designed for holding the unit when mounting moving or servicing the inverter 3 PV input parallel lid SG12KTL EC There are two parallel blocks for PV input mode configuration under the lid 4 Ventilation holes Ensure sufficient heat dissipation 5 Handles The handles are designed for transporting installing and dismantli...

Страница 18: ...b 2 1 Dimension Values Type W mm H mm D mm Net weight kg SG8KTL EC 535 710 220 36 SG10KTL EC 535 710 220 36 SG12KTL EC 535 710 220 45 2 2 3 LCD Display Panel As a human computer interaction interface LCD display panel is on the front panel and comprises LED indicators buttons and LCD screen LED indicators indicate the working status of the inverter By pressing the buttons user can look up informat...

Страница 19: ...LT On Communication error permanent fault or upgrade failure Blinking Other faults alarms excluded Off No fault occurs 2 3 Technical Description 2 3 1 Circuit Description Fig 2 5 shows the main circuit of inverter The boost circuits raise the input DC voltage Two string MPP trackers can be utilized to ensure the maximum power from PV arrays Then the inverter circuit converts DC power to AC power T...

Страница 20: ...5 2 Ethernet communication with RJ45 ports Net 1 and Net 2 DI and DO terminals Earth fault alarm With the standard Ethernet interface equipped the inverter can be connected to the router via a network cable Then both the inverter information and alarm signals will be uploaded to the cloud server SolarInfo Bank When the server receives an earth fault signal it will automatically send warning e mail...

Страница 21: ...on resistance detection and alarm Inverter output voltage monitoring Inverter output frequency monitoring Residual current monitoring DC injection of AC output current surveillance Anti islanding protection DC over voltage protection DC Over current protection Power module over temperature protection ...

Страница 22: ...tore the inverter in the original packaging During unpacking cut the green plastic straps and lift the full upper part of the carton box Do not cut the sticky tape Fig 3 1 Single Inverter in Original Packaging Carton unit mm 3 2 Moving the Inverter In order to avoid damage to the inverter during moving it is better to move inverter in the original carton Pay attention to the weight Proper device t...

Страница 23: ...es of Inverters Image shown here is for reference only Actual product you receive may differ Item Description Item Description 1 SUNGROW logo and product type 3 Marks of certification institutions 2 Technical data 4 Company name website and origin Tab 3 1 Description of Icons on the Nameplate Icon Description Do not dispose of the inverter with the household waste Refer to the corresponding instru...

Страница 24: ...ll D Fastener set for installing wall bracket onto metal frame E Theft proof device used to lock the inverter to the wall bracket F PV input connectors including positive and negative connectors G Four pole plugs for DI connection H Three pole plugs for DO connection I Five M4 screws for second PE connection and spare J Two pairs Seal the unplugged PV connectors with sealing caps K AC connector L ...

Страница 25: ... 30 C and 85 C And the storage relative humidity should be always between 0 and 100 It is very important to keep the packing away from chemicals Otherwise it will lead to corrosion During the storage time check periodically for visible damages by rodents Replace the packaging if necessary If there is more than one inverter to be stored the maximum layers for original paper packaging are three Afte...

Страница 26: ... The wall such as concrete wall and metal structure should be strong enough to hold the weight of the inverter over a long period 2 Install the device where is accessible for installing electrical connection or service 3 Do not install the unit on wall of flammable materials Flammable wall material 4 Do not install the inverter where contains flammable materials or flammable gas in the vicinity of...

Страница 27: ...ration and display reading 6 It is suggested that the inverter be installed vertically with upside up for good heat dissipation 7 Never install the inverter horizontally or with a forward tilt or with a backward tilt or even with upside down 8 The inverter with IP65 can be installed indoors or outdoors ...

Страница 28: ...e ambient temperature exceeds 45 C 10 The maximum relative humidity of chosen installation site can reach 100 11 Avoid exposing the inverter to direct sunlight rain or snow to extend its service life despite of IP65 rating Shaded site of the building would be better 12 Take enough space for convection into consideration during installation ...

Страница 29: ...nverter in residential area Noise can be produced during the inverter running and may affect your daily life 4 2 Moving Inverter to Installation Site If the inverter is to be installed remove the device from the packaging and move it to the chosen installation site During the moving process the instructions below should be obeyed 1 Beware of the weight of the inverter 2 Grasp the equipment with bo...

Страница 30: ... the concrete wall and metal frame respectively Fig 4 2 Dimensions of Expansion Bolt Set for Concrete Wall unit mm Fig 4 3 Dimensions of Fastener Set for Metal Frame unit mm For Concrete Wall 1 Remove wall bracket and fasteners from the packaging 2 Place the wall bracket onto the chosen concrete wall and adjust it until it is in a horizontal position 3 Mark the positions to drill holes using the w...

Страница 31: ...ket against Concrete Wall 6 Lift up the inverter above the wall bracket with the help of other people and then slide down Make sure that the lag screws on the back of the inverter and grooves on the wall bracket engage perfectly The Installers must wear gloves to avoid scratches when mounting the inverter 7 To protect the inverter from theft you can lock it to the wall bracket with a theft proof d...

Страница 32: ... the metal frame does not fit the holes on the wall bracket you need to re drill holes on the wall bracket at appropriate position according to the chosen frame 5 Fasten the wall bracket against the metal frame with bolts and nuts The dimensions of fasteners used in the following diagram are recommended The torque for fastening the nut is 35 N m Fig 4 5 Fasten Wall bracket against Metal Frame 6 Li...

Страница 33: ...ring Inverter to the Wall 23 The Installers must wear gloves to avoid scratches when mounting the inverter 7 To protect the inverter from theft you can lock it to the wall bracket with a theft proof device and a padlock ...

Страница 34: ...s dual power supplies It is mandatory for technical personnel to wear personal protective equipments during the electrical work helmet footwear and gloves 5 1 Overview of Electrical Connection Connecting inverter to the existing PV system includes connecting inverter to local grid and connecting inverter to PV arrays There may be communication connection for monitoring if necessary All electrical ...

Страница 35: ...es this device to monitor the whole PV system D Router Switch Used as data transferring device between inverter and the Internet Webserver to monitor the whole PV system E AC circuit breaker Used as a protective device during electrical connection User equips this device according to the maximum output voltage and current F Smart energy meter optional Three phase electronic energy meter used to me...

Страница 36: ...ls Description Item Description 1 AC connector Amphenol C16_L 2 DC1 DC2 DC connectors MC4 3 Integrated DC switch 4 Communication waterproof connectors 5 Second PE Terminal 5 3 Meter Connection optional The smart energy meter is installed between the air breaker and the grid It measures the feed in power and communicates with the inverter through RS485 connection This section describes the power ca...

Страница 37: ...ceiving prior approval from the local grid company as required should you connect the inverter to the grid The grid should meet the following requirements Otherwise the inverter will not work Grid Voltage 180 276V Grid Frequency 45 55Hz AC Side Circuit Breaker An independent three or four pole circuit breaker for the inverter must be installed at the output side to ensure that the inverter can be ...

Страница 38: ...ultiple Inverters in Parallel Grid Connection If several inverters are operated in parallel connection to grid different requirements should be obeyed See technical information Technical notes for multiple paralleled grid connected inverters in the download area of SUNGROW website AC Cable Requirements The grid is connected to the inverter via 5 wires L1 L2 L3 N and PE Feed in power is always thre...

Страница 39: ...nal at the bottom of the inverter Danger to human life due to high voltage inside the inverter Make sure that all the AC cables to the inverter are not live before the electrical work Do not turn on the AC circuit breaker until all electrical connections are completed Prior to connecting to the utility grid verify whether the grid voltage and frequency are within the range of inverter output param...

Страница 40: ...hten the water proof terminal with the torque of 5 N m in opposite direction 8 Make sure the AC and DC circuit breakers are disconnected 9 Connect phase cables and N cable to AC circuit breaker Plug AC connector to corresponding AC terminal Screw AC cables except the PE cable to theAC circuit breaker 10 Connect AC circuit breaker to the utility grid 11 Make sure allAC cables are firmly installed 5...

Страница 41: ...n 1000 V Voltage over 1000 V can damage the inverter If the input line is changed such as input line falls off panels configuration modified etc You need to reset the work mode 5 5 1 PV Inputs Configuration The inverter has two PV input areas DC1 input and DC2 input each with its MPP tracker The two PV inputs can be configured in independent mode or parallel mode PV Configuration Mode Independent ...

Страница 42: ... SG10KTL EC DC1 10550 W 1000 V 28 A DC2 14 A SG12KTL EC DC1 12650 W 1000 V 30 A DC2 15 A In independent mode when there is only one PV input the other input may produce induced voltage DO NOT touch the unused DC terminals Configuration of Independent Mode for SG12KTL EC Both the default configuration modes of the hardware and LCD screen are parallel If you want to configure it to independent mode ...

Страница 43: ...ollowing electrical specifications must be met simultaneously Type Total DC Power Limit for Inverter Open circuit Voltage Limit for Each Input Short circuit Current Limit for Total Input SG8KTL EC 8440 W 1000 V 42 A SG10KTL EC 10550 W 1000 V 42 A SG12KTL EC 12650 W 1000 V 45 A Configuration of Parallel Mode for SG8 10KTL EC Both the default configuration modes of the hardware and LCD screen are in...

Страница 44: ...nd Current SG8KTL EC 4 6 mm2 11AWG 9AWG 6 9 mm 1000 V Same with short circuit current SG10KTL EC 4 6 mm2 11AWG 9AWG 6 9 mm 1000 V Same with short circuit current SG12KTL EC 4 6 mm2 11AWG 9AWG 6 9 mm 1000 V Same with short circuit current DC Connector Assembling Procedure 1 Strip off 7 mm insulation layer from all DC cables 2 Assemble cable ends with crimp contacts by crimping pliers 3 Lead cable t...

Страница 45: ...nected to the inverter is live before the electrical work Make sure that the open circuit voltage does not exceed inverter input limit of 1000 V even under the lowest operating temperature PV Connection of Independent Mode Connect the inverter to PV arrays according to the following procedures 1 Rotate the DC switch at the bottom to the OFF position 2 Remove the copper bars between the two termina...

Страница 46: ...ties are reversed Check the positive and negative polarity of the PV cells After confirmation you can insert the DC connectors into the input terminals on the bottom of the inverter For the same MPPT reverse connection of a single string is prohibited A permanent failure of the system or inverter may follow if otherwise 4 Plug the positive and negative DC connectors into corresponding terminals un...

Страница 47: ...e inverter bottom to the OFF position 2 Check the cable connection of PV strings for the correct polarity and that the open circuit voltage does not exceed the inverter input limit 1000 V 3 Plug the positive and negative DC connectors into corresponding terminals until it click locks into place 4 One pair of DC terminals in DC1 input and DC2 input must be short circuited by Y type cable connector ...

Страница 48: ... carrying exposed metal parts of the equipment and other enclosures in the PV power system should be grounded e g PV arrays frame and inverter enclosure Where there is only one inverter in the PV power system connect the PE cable to the installation ground Where there are multiple inverters in the PV power system connect the PE cables of all inverters and mounting frame of PV arrays to the same co...

Страница 49: ...8 Second PE Terminal There is a PE terminal on the right side of the inverter You may choose to connect the PE Fig 5 4 Second PE Terminal Second PE Connection Fig 5 5 Connection of the Second PE Connection Item Description Specification A Screw M4 12 mm B Spring washer C Washer D Cable socket E Yellow green cable 6 mm2 10mm2 copper wire or 10 mm2 16mm2 aluminum wire ...

Страница 50: ...erter operation information can be transferred via RS485 ports to a PC with query software or to data logging device such as MC Logger For Ethernet communication the inverter operation information can be transferred via NET ports to a PC with query software or Webserver or to SolarInfo Bank via the router Before communication connection prepare communication cables and RJ45 plug Cable requirements...

Страница 51: ...enables connection between the inverter and PC Fig 5 7 Single inverter RS485 communication connection For Multiple Inverters Where there is more than one inverter all inverters can be connected in a daisy chain The very first and last inverters in the chain must be terminated with a resistor of 120Ω The shielding layer of network cable should be single point grounded The maximum number of inverter...

Страница 52: ...sert from the port 3 Lead the network cables through the Thread Lock Sealing Nut and the cable gland 4 Remove the Clamping Claw and two Sealing Plugs from the Waterproof Sealing Insert 5 Use the Ethernet crimper to crimp the cables and connect cables to RJ45 plugs according to TIA EIA 568B 6 Insert the network cables into the Waterproof Sealing Insert Connect the RJ45 plugs to the RS485 ports on t...

Страница 53: ...se a Network cable crimping plier to strip the insulation layer and connect the RS485 A and B cables 6 and 3 to terminating resistor or data logging device or RS 485 232 converter 11 Connect the other devices Refer to the device manual for the definition of the communication port The following figure shows the RS485 connection to the three phase smart energy meter The length of insulation to be st...

Страница 54: ... the cable gland 5 7 3 Ethernet Communication Connection You can connect the inverter to PC through NET ports to set up Ethernet communication Network cable with RJ45 plugs enables connection between the inverter and PC The Ethernet communication can be connected either in single daisy chain or star topology Fig 5 9 Direct network connection of single inverter Fig 5 10 Direct network connection of...

Страница 55: ...r 1 SolarInfo Bank Explorer Webserver Explorer Inverter 2 Inverter n Fig 5 13 Inverters network connection in star topology The star topology network connection is recommended for optimal operation The maximum number of inverters connected depends on switch router and other factors Please refer to switch s or router s manual to obtain the limit By logging into the Webserver explorer you can view a...

Страница 56: ...t the Waterproof Sealing Insert from the port 3 Lead the network cables through the Thread Lock Sealing Nut and the cable gland 4 Remove the Clamping Claw and two Sealing Plugs from the Waterproof Sealing Insert 5 Use the Ethernet crimper to crimp the cables and connect cables to RJ45 plug according to TIA EIA 568B 6 Insert the network cables into the Waterproof Sealing Insert Connect the RJ45 plu...

Страница 57: ...n opening and tighten the Thread Lock Sealing Nut firmly to the cable gland 5 7 4 Power Control Configuration There are two terminals located on the bottom of the inverter for power control configuration DI and DO Prior to DI DO connection please prepare additional materials Item Type Description 1 DI DO connection cable DI 5 cores cable 5 0 94 mm Total diameter 7 5 8 5 mm DO 4 cores cable 4 2 5 m...

Страница 58: ...inverters If the RS485 communication is adopted close all other monitoring devices that use this RS485 communication during grid dispatch Default function configuration of DI is active power limitation 0 30 60 100 To change this setting please login to the Webserver The abovementioned settings are needed only during inverter initialization or after the load default operation The inverter can be li...

Страница 59: ...l input 2 Slave inverter 6 Ripple control receiver 3 Ethernet cable 7 Grid 4 Router Connect the cables to DI terminal block according to the terminal assignment 1 Strip approximately 4 5 cm of protective layer off the DI cables 2 Lead the DI connection cables through water proof terminal and the communication terminal lid 3 Strip approximately 6 mm of insulation off the insulated wires 4 Release t...

Страница 60: ...irm whether they are installed firmly 6 Connect the four pole plug to the DI connection socket 7 Connect the ripple control receiver to the inverter according to the terminal assignment The four negative input terminals is equipotential you can choose any one to connect ...

Страница 61: ...red until the fault is removed Consumer load control The output power of the inverter exceeds the threshold set for grid connection for a while Relay is activated when the inverter output power exceeds the threshold for a while When the set duration is reached or inverter does not run normally during the set period the relay will disconnect and re measure the output power Connect all cables to the...

Страница 62: ...to the DO connection sockets OFF2 ON2 COM2 OFF1 ON1 COM1 The DO2 relay can be configured as NO by connecting COM and OFF or NC by connecting COM and ON contact The DO1 relay is not configurable You must install an external load relay between the inverter and the consumer load Do not connect any consumer load directly to the switch output ...

Страница 63: ...se Close the web page when logging out After logging out it will take at most 4s until the user log in again 6 2 Login Interface Query the inverter IP address displayed on the LCD main screen Open the browser and input the inverter s IP address User should select username user after signing in with the default sign in password of 1111 User can change the password after signing in After inputting t...

Страница 64: ...ching output node system information in which parameter setting and history record have their second level menus 4 Display area Detailed information of the selected navigation bar 6 3 1 Summary Information The default interface after login displays the read only information current status CO2 reduction total run time daily energy monthly energy total energy daily power curve monthly energy histogr...

Страница 65: ...nverter Total runtime Inverter total running time Daily energy Energy yields of the present day Monthly energy Energy yields of the present month Total energy Total energy yields since the inverter connects to the grid 6 3 2 Detailed Information The detailed read only information is shown below No Name Description 1 DC information PV1 and PV2 voltage PV1 and PV2 current and total input power and s...

Страница 66: ...unication parameters 6 4 1 System Parameters This interface is to set time and total energy adjustment 6 4 2 Operating Parameters This interface is for Austria and Vorarlberg to set the standby time recovery time insulation resistance active power settings and reactive power regulation For detailed information please refer to 10 15 Special Settings for Austria and Vorarlberg ...

Страница 67: ...on For detailed information please refer to 10 16 Special Settings for Italy This interface is for Germany and others to set the standby time recovery time insulation resistance active power settings and reactive power regulation For detailed information please refer to 10 11 Setting Running Parameter To set the Q P or Q U parameters please contact SUNGROW to get the installer authority first ...

Страница 68: ... Austria and Vorarlberg to select the grid codes such as voltage country single protect stage or multiple protect stage For detailed information please refer to 10 15 Special Settings for Austria and Vorarlberg This interface is for Italy to select the grid codes such as voltage country single protect stage or multiple protect stage For detailed information please refer to 10 16 Special Settings f...

Страница 69: ... 12 Setting Protective Parameters To set the abovementioned protection parameters please contact SUNGROW to get the installer authority first 6 4 4 Communication Parameters This interface is to set the related communication parameters The newly set parameters will not be effective immediately System will adopt the new communication parameter after re login For detailed information please refer to ...

Страница 70: ...ce is to search the running information of the inverter The default display is the running record of the preset day with 10 records in each page If there is more than 10 records system will automatically list them in different pages 6 5 2 Fault Record This interface is to view the inverter detailed fault records At most 100 fault records can be stored with 10 records in each page ...

Страница 71: ...nputs are the configuration functions of corresponding actions Four inputs can be used to connect a power grid dispatch device ripple control receiver A closed relay represents status 1 while open relay is 0 The default state is 0000 when all four inputs are open It cannot be applied to power grid dispatch In the event of Ethernet connection as shown in Fig 5 14 inverter can be the master or the s...

Страница 72: ...ameters must be done only by qualified personnel Any breach may void warranty claims from SUNGROW 6 7 Output Node This interface is to set the grounding warning and appliance node parameters For detailed information please refer to 10 10 4 System Configuration 6 8 System Information This interface is to change the login password perform load default and check system information ...

Страница 73: ...ng is left on the top of the inverter 5 Inverter and accessories are correctly connected 6 Cables are routed in safe place or protected against mechanical damage 7 The selection of AC circuit breaker is optimal 8 Terminals not used underneath the inverter are sealed 9 Warning signs labels are suitably affixed and durable 7 2 Commissioning Procedure If all checking items mentioned above meet the re...

Страница 74: ...is not included please choose item Other and manually set the protective parameters If the country code is not set correctly during commissioning reset the protective parameters as dictated in 10 12 Setting Protective Parameters There may be faults if otherwise 4 Each country code represents corresponding local protective parameters that have been preset before delivery After country setting there...

Страница 75: ...V Vgrid max 260 0V Fgrid min 47 00Hz Fgrid max 52 00Hz 7 For other countries except AU after configuring the country code there will be a Pro Stage type selection screen and then corresponding sub menu will come up For detailed information please refer to 10 12 Setting Protective Parameters Single stage protection There is only one protection threshold range for each grid voltage protection parame...

Страница 76: ...g all parameters there will be a setting confirmation screen Check whether all above mentioned parameters are correct Confirm by Pressing ENTER Cancel by Pressing ESC and reset 11 Inverter will enter into startup process Observe the status of LED indicators and the LCD main screen If inverter s commissioning succeeds the RUN indicator will be lit and RUN will be displayed on the State area If inve...

Страница 77: ...ing and Stopping the inverter 2 Disconnect the externalAC circuit breaker and prevent it from reconnecting 3 Rotate the DC switch to the OFF position Please strictly follow the above procedures Otherwise the inverter will not function properly 4 Wait for about ten minutes until the capacitors inside the inverter have discharged 5 Measure to confirm the AC output at the AC circuit breaker is voltag...

Страница 78: ...ries and electric shock Wait at least 10 minutes after disconnecting the inverter from the utility grid and the PV input before touching any inner live parts If the inverter will be reinstalled in the future please refer to Chapter 4 and Chapter 4 1 for a proper conservation 8 3 Disposing of the Inverter Users should take the responsibility for the disposal of the inverter Some parts and devices o...

Страница 79: ...he inverter start voltage 5 If all above conditions are OK please contact SUNGROW Fault indicator is lit 1 A fault is not removed 2 Perform troubleshooting according to fault type in LCD screen See 9 1 2 Troubleshooting of Faults in LCD Screen 3 If it cannot be solved please contact SUNGROW 9 1 2 Troubleshooting of Faults in LCD Screen When faults occur Fault state will be shown on the main screen...

Страница 80: ...per limit 1 Check the frequency of the grid 2 If the grid frequency exceeds the permissible range of inverter protective parameters ask utility grid company for solution 3 If the grid frequency is within the permissible range contact SUNGROW Service Dept 009 The grid frequency has fallen below inverter allowable lower limit 010 Islanding 1 Check whether AC circuit breaker is triggered 2 Check whet...

Страница 81: ...r inverter recovery 2 If the fault still exists please contact SUNGROW Service Dept 037 Enclosure over temperature The ambient temperature of the enclosure exceeds the threshold 1 Check whether AC output power exceeds nominal power too much 2 Check whether fans work normally and whether there are some abnormal fans Please replace broken fan if necessary 3 Clean air grills of outlet 4 If the fault ...

Страница 82: ... grid frequency is within the permissible range contact SUNGROW Service Dept 102 Grid under frequency Grid frequency is outside the permissible range 103 Grid voltage synchronization fault The grid voltage sampling differences between the master and slave DSP 1 Wait a moment for inverter recovery 2 Contact SUNGROW if the fault reoccurs 104 Grid frequency synchronization fault The grid frequency sa...

Страница 83: ...tact SUNGROW if the fault reoccurs 308 Accessary processor fault Redundant fault detected 1 Wait a moment for inverter recovery 2 Contact SUNGROW if the fault reoccurs 309 318 Voltage and current sampling fault before grid connection 1 Wait a moment for inverter recovery 2 Contact SUNGROW if the fault reoccurs 320 2 Leakage current CT self detection fault 1 Wait a moment for inverter recovery 2 Co...

Страница 84: ...rmally 2 Contact SUNGROW if the fault reoccurs 515 Boost short circuit warning Contact SUNGROW if the fault reoccurs Note 1 Fault code here is for SG8KTL EC and SG10KTL EC while for SG12KTL EC the fault code is 304 and 305 2 Fault code here is for SG8KTL EC and SG10KTL EC while for SG12KTL EC the fault code is 041 3 Fault code here is forSG8KTL EC and SG10KTL EC while for SG12KTL EC the fault code...

Страница 85: ...he air inlet is ok Clean the air inlet and outlet when necessary Six months to a year it depends on the dust contents in air Electrical connection Check whether cable connections are loose Tighten the loose connections Check whether there is damage to the cables especially the surface in contact with metal Check whether the wrap belt of the connection terminals is strip off Six months after commis...

Страница 86: ...mal noise please wait a moment for the fan recovery If the abnormal noise still exists after a moment please contact SUNGROW Service Dept to replace the fan Disconnect the inverter from the grid first and then PV arrays before any maintenance work Fans maintenance work may only be performed by qualified electricians Air Inlet and Outlet Cleaning To have a good heat exchange with the environment cl...

Страница 87: ...ownwards or increase setting value Hereinafter it is referred to as Press Press more than one second Return to the previous menu or cancel the command Hereinafter it is referred to as Press ESC Press less than one second Move left or right or turn pages Hereinafter it is referred to as Press Press more than one second Enter into the submenu or confirm the command Hereinafter it is referred to as P...

Страница 88: ...10 Operating the LCD Menu User Manual 78 10 2 Inverter Menu Structure Fig 10 1 Menu Tree English The menu tree of SG12KTL EC doesn t have the submenu ISO protect ...

Страница 89: ...yields displayed by the LCD panel are indicative only For the actual yields please refer to the electric energy meter Tab 10 2 Inverter State Description Inverter State Description Run After being energized the inverter tracks the PV arrays maximum power point MPP and feeds AC power to grid This mode is the normal mode Standby In this mode the inverter will wait for sufficient sunlight and the DC ...

Страница 90: ...an 10 minutes please check if the insolation is sufficient and the PV connection is correct If no anomaly is found please disconnect DC switch and grid switch to restart If it still does not work contact SUNGROW If inverter is in Fault state Press to view multiple Current fault information pages For specific fault information please refer to 9 1 2 Troubleshooting of Faults in LCD Screen Tab 10 3 D...

Страница 91: ...The contrast value ranges from 0 to 100 The recommended value is 50 or 60 10 5 Viewing Detailed Running Information On the main screen there is some basic information about the inverter For more detailed running information please operate as follows Main Screen Press ENTER Menu Run inform Press ENTER LCD screen will show detailed running information Scroll pages by pressing Power curve during this...

Страница 92: ...h input Idc DC current of each input Pdc DC power of each input Indep mode PV configuration mode of the two PV inputs The corresponding input is at work Vac Phase voltage Iac Phase current Pac AC output power of each phase F Frequency of each phase CO2 reduce Total CO2 emission reduction due to the inverter E month The energy generated in this month h Total Total running hours of the inverter T to...

Страница 93: ...it interval 10 6 History Running Information 10 6 1 Fault Records Main Screen Press ENTER Menu Press His inform Press ENTER Flt record Press ENTER Inverter shows fault record pages Scroll pages by pressing The inverter can only store at most 100 latest fault records 10 6 2 History Event Records Main Screen Press ENTER Menu Press His inform Press His event Press ENTER Inverter shows history event r...

Страница 94: ...ng and press to select the date you want to view Confirm by pressing ENTER Inverter shows history running information pages Scroll among pages by pressing Vac V 000 0 000 0 000 0 I ac A 000 0 000 0 000 0 Pac W 0000 0000 0000 F Hz 00 00 00 00 00 00 L1 L2 L3 DC power i nput Vdc V 0000 0 0000 0 I dc A 000 0 000 0 Pdc W 00000 00000 PV1 PV2 I ndep m ode P W 00000W Count r y DE CO2 r educe 00000kg E m o...

Страница 95: ... appear only when a permanent fault occurs 10 8 Entering Password The parameter settings are password protected You can see the inverter s parameters or set the parameters if you input a default password A 111111 You can set all parameters of the inverter if you input a dedicated password B Please ask SUNGROW or your dealer for this password 1 Press ENTER to enter into Menu screen 2 Press to move ...

Страница 96: ...for Parameters Setting The button functions for parameter setting in submenus may differ from that in other menus Proceed as follows to perform the parameter settings 10 10 Setting System Parameters 10 10 1 Setting the Time If there is deviation between the time on inverter main screen and your local time you should adjust the time on the inverter to the local time Otherwise the inverter data logg...

Страница 97: ...rent from the value in the external metering device you should adjust the Energy adj setting Main Screen Press ENTER Menu screen Press 3 Set param Press ENTER Enter password 111111 Press ENTER Sys param Press ENTER Press Energy adj Press ENTER On the Energy adj screen Press to move the cursor right and Press to set the correct offset value Confirm settings by pressing ENTER The positive symbol can...

Страница 98: ...NTER and Press to select one item For each item setting Press to move the cursor right and Press to set the appropriate value Confirm settings by Pressing ENTER Item Description Buzzer OFF reserved Low Power OFF reserved Role M master inverter or S slave inverter This is to set the communication role in power control For the cable connection and role definition see Power Control Settings Interface...

Страница 99: ...time More information about DO2 see DO Relay Configuration OFF Disable the load control function Wake power The lowest power of the inverter to activate the Electri wake function SG8KTL EC range 2 4 kW 8 kW default 5 6 kW SG10KTL EC range 3 kW 10 kW default 7 kW SG12KTL EC range 4 kW 12 kW default 8 4 kW Stable time The time needed before the relay receives drive signal Range 1 min 60 min Default ...

Страница 100: ...tion of Running Parameters Parameter Explanation Default Range Standby time The time from inverter initialization to inverter feeding power to grid Austria and Vorarlberg 30s Others 20s 20s 255s Recover time The time from the fault is cleared to inverter feeding power to grid Austria Italy and Vorarlberg 300s Others 30s 30s 900s P W limits Inverter active power limits 100 0 0 100 ISO protect Prote...

Страница 101: ...the parameter Q Var limits in Off The PF is limited to 1 000 and the Q Var limits is limited to 0 0 Q P The PF changes with the output power of the inverter Q U The reactive power ratio changes with the grid voltage Pf Mode The reactive power can be regulated by the parameter PF on the Run param screen Qt Mode The reactive power can be regulated by the parameter Q Var limits in on the Run param sc...

Страница 102: ...he Q P mode curve 0 9 0 9 1 Upper Power Output power of point P2 in the Q P mode curve in 100 50 100 Lower Power Upper Power Fig 10 3 Reactive Power Regulation Curve in Q P Mode Q U Mode when the country selection is not AT VB DE or IT The reactive power ratio changes with the grid voltage If the country selection is not AT Austria VB DE Vorarlberg or IT Italy after selecting Q U mode Press ENTER ...

Страница 103: ...t in of point P1 in the Q U mode curve 80 80 90 U1 Limit Grid voltage limit in of point P2 in the Q U mode curve 95 95 100 U2 Limit Grid voltage limit in of point P3 in the Q U mode curve 105 100 105 Hysteresis Hysteresis voltage width in 3 0 5 U1 Limit Hysteresis U2 Limit Hysteresis Fig 10 4 Reactive Power Regulation Curve in Q U Mode 10 11 3 Save P Q set On the Save P Q set screen Press to move ...

Страница 104: ...rter provides country code selection Choose the correct country code by Press and Press ENTER to confirm The description of country code is illustrated below Country Code Full Name Language GB Great Britain English DE Germany German FR France French IT Italy Italian ES Spain English AT Austria German AU Australia English CZ Czech English BE Belgium French DK Denmark English GR_L Greece Land Englis...

Страница 105: ...se the correct stage Press to move cursor and Press to scroll up time value Confirm the settings by Pressing ENTER The following figure shows the settings of single stage protection parameters Countries Country AU Grid Standard AG EE EG PN PC WP Manual Default Pro Stage Single stage Multi stage Vgrid min 210 0V Vgrid max 260 0V Fgrid min 47 00Hz Fgrid max 52 00Hz 3 For other countries except AU Pr...

Страница 106: ... grid Multi stage Protective Parameters when the country selection is not AT VB DE or IT If the selected protective parameter type is Multi stage the following submenus will come up Press to select parameter Press to move cursor right and Press to set the appropriate value Confirm settings by Pressing ENTER Tab 10 8 Multi stage Protective Parameters Explanation Parameter Explanation Max V prot Ove...

Страница 107: ...under frequency f tripping time Ⅱ Min F grid Stage Ⅱ Grid under frequency f Ⅱ Min F time Stage Ⅱ Grid under frequency f tripping time Confirm settings by pressing ENTER and enter the Setting confirmation screen Check all above mentioned parameter settings Confirm them by pressing ENTER Cancel by pressing ESC and reset 10 13 Setting Communication Parameters Main Screen Press ENTER Menu screen Press...

Страница 108: ... Enter password 111111 Press ENTER Press 4 PV config mode Press ENTER On the PV config mode screen Press to choose PV configuration mode Press ENTER to confirm the settings DO NOT change the PV configuration mode when the inverter is operating 10 15 Special Settings for Austria and Vorarlberg The differences focus on Run param and Pro param as shown below 10 15 1 Over frequency Setting for Austria...

Страница 109: ...ope range 2 5 Fig 10 5 Over frequency Derating Curve Default Recover slope 10 It means that the maximum starting rate of the grid power is 10 Pn min Pn is the rated power after fault recovery The range of Recover slope is 5 20 Note Recover Slope is the power recover slope 10 15 2 Reactive Power Regulation for Austria and Vorarlberg Q P Mode for Austria and Vorarlberg For detailed information pleas...

Страница 110: ...arameter Explanation Default Range Upper Q Qmax Cap Capacitive Q Qmax value of point P1 in the Q U mode curve 100 0 120 Lower Q Qmax Ind Inductive Q Qmax value of point P4 in the Q U mode curve 100 0 120 Upper U Limit Grid voltage limit in of point P4 in the Q U mode curve 108 107 120 Lower U Limit Grid voltage limit in of point P1 in the Q U mode curve 99 80 100 U1 Limit Grid voltage limit in of ...

Страница 111: ...stage the following submenu will come up Press to select parameter Press to move cursor right and Press to set the appropriate value Press ENTER to confirm settings and scroll page Tab 10 10 Single stage Protective Parameter Explanation Parameter Explanation Parameter Explanation Vgrid max Grid over voltage value Fgrid max Grid over frequency value Vgrid min Grid under voltage value Fgrid min Grid...

Страница 112: ...rating only when the grid voltage is below Vmax recover The fault recovery value when the grid over voltage occurs Vmin recover Inverter can start operating only when the grid voltage is above Vmin recover The fault recovery value when the grid under voltage occurs Press to select parameter Press to move cursor right and Press to set the appropriate value Confirm settings by pressing ENTER Tab 10 ...

Страница 113: ...1 50Hz II Max F time 000 20s II Max F grid 51 50Hz Pro param Multi I Min F time 000 20s I Min F grid 47 50Hz II Min F time 000 20s II Min F grid 47 50Hz Tab 10 13 Multi stage Protective Parameters Explanation Parameter Explanation Max V prote Over voltage protection Ⅰ Max V grid Stage Ⅰ Grid over voltage U Ⅰ Max V time Stage Ⅰ Grid over voltage U tripping time Ⅱ Max V grid Stage Ⅱ Grid over voltag...

Страница 114: ...tings by pressing ENTER For the explanation of the new protective parameters see Tab 10 12 Confirm settings by pressing ENTER and enter the Setting confirmation screen Check all above mentioned parameter settings Confirm them by pressing ENTER Cancel by pressing ESC and reset 10 16 Special Settings for Italy The differences focus on Run param and Pro param as shown below 10 16 1 Over frequency Der...

Страница 115: ...enter into the Run param submenu Press to navigate the cursor Press to enter into the editing mode then the selected parameter will be shaded Press to increase one step value Press ENTER to confirm the setting and exit from the editing mode Tab 10 14 Italy Q P Mode Parameters Explanation Parameter Explanation Default Range Step PA Active power at point A in 20 20 100 1 PB Active power at point B i...

Страница 116: ...ress to enter into the editing mode then the selected parameter will be shaded Press to increase one step value Press ENTER to confirm the setting and exit from the editing mode Tab 10 15 Italy Q U Mode Parameters Explanation Param Explanation Default Range Step V2i Grid voltage at point D in 90 90 110 1 V1i Grid voltage at point C in 92 90 110 1 V2s Grid voltage at point A in 108 90 110 1 V1s Gri...

Страница 117: ...et the protective parameters IT Single stage Protective Parameter If the selected protective parameter is Single stage the following submenu will come up Press to select parameter Press to move cursor right and Press to set the appropriate value Press ENTER to confirm settings and scroll page Tab 10 16 Single stage Protective Parameter Explanation Parameter Explanation Parameter Explanation Vgrid ...

Страница 118: ...erating only when the grid voltage is below Vmax recover The fault recovery value when the grid over voltage occurs Vmin recover Inverter can start operating only when the grid voltage is above Vmin recover The fault recovery value when the grid under voltage occurs Confirm settings by pressing ENTER and enter the Setting confirmation screen Check all above mentioned parameter settings Confirm the...

Страница 119: ... F prote Over frequency protection Ⅰ Max F grid Stage Ⅰ Grid over frequency f Ⅰ Max F time Stage Ⅰ Grid over frequency f tripping time Ⅱ Max F grid Stage Ⅱ Grid over frequency f Ⅱ Max F time Stage Ⅱ Grid over frequency f tripping time Min F prote Under frequency protection Ⅰ Min F grid Stage ⅠGrid under frequency f Ⅰ Min F time Stage Ⅰ Grid under frequency f tripping time Ⅱ Min F grid Stage Ⅱ Grid...

Страница 120: ...h the APP of SolarInfo Home installed into the smartphone 11 1 SolarInfo Bank Connection 11 1 1 For Common User 1 Connect the communication cable between router and inverter and connect the communication cable between router and PC 2 Wait for about 10 minutes and the icon as shown in the figure below will appear on the main LCD display interface The SolarInfo Bank connects to the inverter successf...

Страница 121: ... shows the three scenarios of connection for professional user No Description Remarks Scenario 1 The inverter is connected to router and the router is connected to the PC The router cannot allocate IP address automatically The computer can visit SolarInfo Bank only when the router can connect to the external network Scenario 2 The inverter is connected directly to PC The computer cannot visit Sola...

Страница 122: ...terface The SolarInfo Bank connects to the inverter successfully 4 Optional Do this step only for scenario 2 Proceed as follows to configure the IP address and subnet mask of the computer For Windows 7 or higher version right click the Network and Internet icon on the right corner of the desktop click Network and Sharing Center open Local Area Connection click Properties double click Internet Prot...

Страница 123: ...the IP address is 192 168 001 101 Subnet mask of the computer Must be the same as that of the inverter i e 255 255 000 000 5 Open the explorer input the inverter IP address in the address bar to enter the WebServer login interface Input the user name and password which are user and 1111 respectively by default and then press ENTER WebServer is connected successfully 6 Open the explorer input the w...

Страница 124: ...he URL www solarinfobank com to view the homepage of SolarInfo Bank Register a new user by clicking Register 2 The registration interface as shown below will appear User can select Home Users or Business Users according to real situation Select Home Users for residential use Select Business Users for commercial use ...

Страница 125: ...ser information in the following interface Click Expansion to fill in more information in the following interface Then click Next The Country City Monetary unit and Temperature unit can be selected from the drop down list For other items user must fill in manually ...

Страница 126: ...s is finished by now The nameplate in the figure is for reference only Time Zone must be selected according to the installation place of the inverter If user does not know the local time zone please check in Google Map If new devices are added please fill in the pertinent information in the following format Serial number the serial number shown on the device nameplate Password the same as the seri...

Страница 127: ... of Serial number Password and Device name are the same as that in Step 4 Click Complete to finish the registration and click Previous to return to the precious page to modify information 6 Refresh the webpage www solarinfobank com then you can see the data of the corresponding PV plant For detailed information about the items see SolarInfo Bank User Manual ...

Страница 128: ...or iphone iOS The address for downloading SolarInfo Home APP is https itunes apple com us app solarinfo home i d906260039 l zh ls 1 mt 8 You can also use your smartphone to scan the OR code as shown on the right to download and install it Search for SolarInfo Home in your APP Store to download and install it For other smartphones Android The address for downloading SolarInfo Home APP is https play...

Страница 129: ...p www solarinfobank com app SolarInfoHome_v1 0 apk You can also use your smartphone to scan the following OR codes to download and install it Search for SolarInfo Home in your Play Store to download and install it Search solarinfo home Download Install ...

Страница 130: ...sword of the APP and webpage www solarinfobank com are generic You can use the registration information of webpage to login APP only when the user type selects Home Users during registration Inquire the inverter SN and password from the nameplate If the password is not displayed on nameplate it s the same as the SN ...

Страница 131: ...ome via the Internet to view the device running information anywhere Make sure that the inverter can access to the Internet If you want to check the running information via Internet in Remote Login mode please follow the steps below NOTE The router must be connected to the Internet Press HOME button Settings Change Off to On Select your router Press HOME button 1 2 SolarInfo Home 1 Input your acco...

Страница 132: ...rrent for input connector 12 A Short circuit current of PV input DC1 DC2 42 A 28 A 14 A 42 A 28 A 14 A 45 A 30 A 15 A Output Side Data Nominal AC output power 8000 W 10000 W 12000 W Max AC output apparent power 8000 VA 10526 VA 13300 VA Max AC output current 11 6 A 15 3 A 19 3 A Nominal AC voltage 3 N PE 230 400 Vac AC voltage range 310 450 Vac May vary as per corresponding country s grid standard...

Страница 133: ...ating ambient temperature range 25 60 45 derating Allowable relative humidity range 0 100 Cooling method Natural cooling Noise 29 dB 29 dB 35 dB Max operating altitude 2000m Display Graphic LCD Communication 2 Ethernet 2 RS485 RJ45 connector 4 Digital Inputs 2 Digital Outputs Webserver Integrated DC connection type MC4 AC connection type Plug and play connector Certification VDE0126 1 1 EN62109 1 ...

Страница 134: ...he product Ignoring safety warnings and instructions contained in all documents relevant to the product Installing or operating the product under incorrect safety or protection conditions Altering the product or supplied software without authority The product faults due to operating attached or neighboring devices beyond allowed limit values Damages caused by irresistible natural environment The u...

Страница 135: ... from hundred watt to mega watt systems The vision of SUNGROW is to help our customers acquire stable and clean power with minimum cost maximum reliability and enhanced safety Contact Information Should you have any problems about this product please contact us through the following information We will be more than happy to assist you Company Sungrow Power Supply Co Ltd Website www sungrowpower co...

Страница 136: ...dvance notice Sungrow Power Supply Co Ltd Add No 1699 Xiyou Rd New High Technology Industrial Development Zone 230088 Hefei P R China Post Zip 230088 Web www sungrowpower com E mail info sungrow cn Tel 86 551 6532 7834 6532 7845 Fax 86 551 6532 7856 ...

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