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1 Safety Instructions

User Manual

4



Before any operation in the area that may be affected by an arc flash,
personal protective equipment (PPE) that meets the requirement must
be worn. A PPE category 2 is recommended.

Maintenance and Service

There is a risk of inverter damage or personal injury due to incorrect
service work!



Before any operation, you should perform the following steps:



First, disconnect the grid side switch and then disconnect the DC
switch;



Wait at least 10 minutes until the inner capacitors are discharged
completely;



Verify, using proper testing device to make sure there is no voltage or
current.

Keep unqualified persons away!

A temporary warning sign and barrier must be posted to keep
unqualified

persons

away

during

electrical

connection

and

maintenance.



Restart the inverter only when the fault that may impair the inverter
safety functions is removed.



Inverter contains no owner serviceable parts inside. Please contact
local authorized personnel if any service work is required.

Do not replace the inverter internal components without permission.
Damage to the inverter may occur and it may void any or all warranty
rights from SUNGROW.

There is a risk of inverter damage due to electrostatic discharge!

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Содержание SG125HV-30

Страница 1: ...SG125HV 30 UEN Ver11 202003 Version 1 1 User Manual SG125HV 30 PV Grid connected Inverter...

Страница 2: ......

Страница 3: ...tional information at www sungrowpower com Target Group This manual is for technical personnel who are responsible for inverter installation operation and maintenance and the inverter owner who will p...

Страница 4: ...ed 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 leve...

Страница 5: ...Cover No User Serviceable Parts Inside Refer Servicing To Qualified Service Personnel CAUTION Risk Of Electric Shock a Both ac and dc voltage sources are terminated inside this equipment Each circuit...

Страница 6: ...User Serviceable Parts Inside Refer Servicing To Qualified Service Personnel CAUTION Risk Of Electric Shock a Both AC and DC voltage sources are terminated inside this equipment Each circuit must be i...

Страница 7: ...nical Description 12 2 3 1 Circuit Diagram 12 2 3 2 Function Description 13 2 3 3 Derating 14 2 3 4 PID Function 17 3 Installation Flow 18 4 Unpacking and Storage 20 4 1 Unpacking and Inspection 20 4...

Страница 8: ...ng Connection 47 6 4 1 Grounding System Overview 47 6 4 2 Additional Grounding Terminal 48 6 5 RS485 Communication Connection 49 6 5 1 Communication Overview 49 6 5 2 RS485 Communication System 51 6 5...

Страница 9: ...unning Information 78 10 8 History Record 79 10 8 1 Fault Alarm Records 79 10 8 2 Yields Records 80 10 8 3 Event Records 81 10 9 More 82 10 9 1 Power On Power Off 82 10 9 2 System Parameters 82 10 9 3...

Страница 10: ......

Страница 11: ...rnings and notes will be specified at the critical points in corresponding chapters All installations should be performed by technical personnel They should have Received professional training Read th...

Страница 12: ...Proper ventilation should be maintained during device operation The fan s air inlet and outlet should not be covered to ensure the device interior can sufficiently cool down During Electrical Connecti...

Страница 13: ...nd explosion inside the device Keep in mind that these accidents can only be handled by qualified personnel Improper handling of these accidents may lead to a more serious fault or accident Plugging i...

Страница 14: ...discharged completely Verify using proper testing device to make sure there is no voltage or current Keep unqualified persons away A temporary warning sign and barrier must be posted to keep unqualif...

Страница 15: ...spect the following regulations Grid connection regulations Safety instructions related to PV arrays Safety instructions related to other electrical devices WARNING ELECTRIC SHOCK HAZARD THE DC CONDUC...

Страница 16: ...supplies a DC voltage to this equipment CAUTION Risk of electric shock from energy stored in the capacitor Do not remove cover until 5 minutes after disconnecting all sources of supply CAUTION Hot su...

Страница 17: ...is illustrated in Fig 1 1 Inverter cannot connect the PV strings whose positive and negative terminals need to be grounded Do not connect any local load between the inverter and the AC circuit breake...

Страница 18: ...tream transformer meets the requirements described in 5 2 1 Medium voltage Transformers The AC cables meet the requirements described in 5 2 2 AC Cable Requirements 1 2 Product Introduction 1 2 1 Mode...

Страница 19: ...r valve 4 Electrical connection area Includes DC terminal AC terminal and RS485 communication terminal 5 Air outlet Controlled forced air cooling method Ensures proper ventilation 6 Handles Handles ar...

Страница 20: ...Dimensions of the inverter 1 2 4 LED Indicator Panel As an HMI the LED indicator panel on the inverter front panel indicates the present working state of the inverter Fig 1 4 LED indicator panel Tab 1...

Страница 21: ...d PID function is not enabled Red ON A fault occurred and the device cannot connect to the gird Periodical flash Fault recovery Green ON PID function is running Periodical flash PID function exception...

Страница 22: ...in circuit of the inverter The MPPT is utilized for DC input to ensure the maximum power from the PV array at different PV input conditions The inversion circuit converts the DC power into AC power an...

Страница 23: ...gram 1 3 2 Function Description Inversion function The inverter converts the DC current into grid compatible AC current and feeds the AC current into the grid Data storage The inverter achieves the ru...

Страница 24: ...from overload or potential faults Situations requiring inverter power derating are Ambient temperature is too high Gird voltage is too low Fluctuations of external power level Input voltage is too hi...

Страница 25: ...1 0 40 45 50 55 60 0 6 0 2 Vmpp 860V Vmpp 1050V Vmpp 1250V 0 5 42 Fig 1 7 Over temperature Derating Pf 1 Lower limit of the over temperature derating about 50 of the nominal power When both the module...

Страница 26: ...600 Vmin Vmax 570 0 9 Fig 1 8 Grid under voltage derating Pf 1 High input voltage derating If the input voltage is too high the inverter may derate the power output The relationship between the input...

Страница 27: ...function module suppresses the PID effect by raising the potential between the negative electrode of PV array and earth to a positive value PID Recovery Function When the inverter is not running the...

Страница 28: ...2 1 gives a detailed explanation Unpacking and Inspection Move inverter Install inverter Electrical connection Check before commissioning Commissioning Start Success End Troubleshooting Yes No 1 2 Sel...

Страница 29: ...npacking and inspection 4 1 4 Read the User Manual especially the section on Safety Instruction 1 5 Install the inverter to the selected installation site 5 3 6 Electrical connection DC side connectio...

Страница 30: ...eceiving Check the completeness of delivery contents according to the packing list Check the inner contents for damage after unpacking In case any damage is found please contact SUNGROW or the forward...

Страница 31: ...g 3 2 Inverter nameplate Image shown here is indicative only Product in kind prevail Item Description 1 SUNGROW logo and product type 2 Technical data of inverter 3 Instructions and marks of conformit...

Страница 32: ...sten set Six units to fasten bracket to metal frame E Fix screw Two M4 16 screws to connect the inverter to the bracket F Big flat washer Two additional big flat washers are within the scope of the de...

Страница 33: ...three layers Do not store the inverters in stack for more than half a year if the stack layer is more than three One layer Two layers Three layers Keep the inverter away from the chemical corrosive ma...

Страница 34: ...he wall concrete wall or metal frame should be strong enough for the weight of the inverter over a long period Install the inverter in a convenient location for electrical connection operation and mai...

Страница 35: ...g and operation Distance from bracket to ground Ground 795mm 31 3inch 450mm 17 7inch Install the inverter vertically or at a maximum back tilt of 75 degrees Do not install the inverter leaning forward...

Страница 36: ...r plant ensure that the waterproof connectors are at least 650mm higher than the floating body surface Bind the cables at the positions 300 350mm away from the DC connector AC waterproof terminal and...

Страница 37: ...600mm 23 6inch When installing multiple inverters it is recommended to install multiple devices side by side 400mm 15 7inch 600mm 23 6inch 600mm 23 6inch 600mm 23 6inch Side by side installation Recom...

Страница 38: ...2 Moving Inverter to Installation Site To install the inverter remove the inverter from the packing case and move it to the installation site Follow the instructions below as you move the inverter Al...

Страница 39: ...s 4 4 Installing the Inverter If you do not use the supplied bracket you can drill holes as per specifications below 518mm 20 4inch 558mm 22inch 396mm 15 6inch 460mm 18 1inch 2 M4 10 492 5mm 19 4inch...

Страница 40: ...ket Step 4Drill holes according to the marks made before If the shape of the metal frame does not match the bracket re drill holes on the bracket according to the metal frame Step 5Secure the bracket...

Страница 41: ...User Manual 4 Mechanical Installation 31 Mount the inverter SG125HV 30 is applicable to optical storage DC coupling and project integrated installation with container...

Страница 42: ...amage to the device Cable connections should only be done by qualified professional personnel Always keep in mind that the inverter is AC and DC redundancy power supplied Electrical operators must wea...

Страница 43: ...crews 6 AC switch Serviced as an automatic overcurrent device 7 DC PE terminal DC PE cable access M6 16 right or M10X30 left fastening screws 8 Waterproof air valve 9 Communication cable gland For Com...

Страница 44: ...85 and the dry contact to prevent interference with the power cables On site wire conduit can be used as a substitute for the gland Take replacing AC gland as an example operation steps are as follows...

Страница 45: ...e done only after receiving approval from the local utility company Before grid connection verify to make sure the grid voltage and frequency meet the requirements of the inverter Contact the local ut...

Страница 46: ...z Primary Voltage According to the grid connection point voltage Secondary Voltage 600Vac Line to Line allowed range 528 660Vac SG125HV 30 MV Grid MV Transformer 1 2 4 Note Additional phase monitoring...

Страница 47: ...should be taken into account The applicable country specific standards should be taken into account The short circuit apparent power of the transformer at grid tied point should be no less than 10 tim...

Страница 48: ...g to the following factors Grid impedance complies with the specifications below to avoid accidental shortcircuit or output power derating 600 615 630 645 660 675 690 0 0 15 Max grid impedance Ohm AC...

Страница 49: ...ce with the local installation requirements If the aluminum cable is selected in order to ensure a reliable electrical connection use the the copper and aluminum conversion terminal to avoid direct co...

Страница 50: ...ctions are completed Step 1Disconnect AC circuit breaker to prevent it from inadvertently reconnecting Step 2Loosen the six screws M6 16 on the lower connection cabinet Step 3Strip off AC cables as sh...

Страница 51: ...e crimping lug that matches with the M10 bolt and tighten it with proper tool E B E 3mm Fig 5 4 Crimping the lugs Step 5Install the heat shrinkable tubing Step 6Connect the AC cable to the correspondi...

Страница 52: ...tionality of the device due to self weight of the cables in case of land subsidence is avoided Step 7Screw cap nut tightly onto the cable Step 8Seal the gaps between the AC cable and the gland inside...

Страница 53: ...String N The SG125HV 30 is a single stage inverter with only one MPPT To make full use of the DC input power and reduce the power loss caused by mismatch the type and rating of the PV modules connect...

Страница 54: ...ter DC Cable Requirements Select DC cables according to the following factors The maximum operating temperature of the cable should no less than 90 C 194 F The current rating of the cable should be se...

Страница 55: ...Kcmil DC Cable Connection High voltage inside the inverter Make sure all DC and AC cables connected to the inverter are voltage free before electrical connection Do not connect the AC circuit breaker...

Страница 56: ...ions refer to 10 2 Tightening Torques PV PV PE PV PV PE When accessing the positive and negative cable it is necessary to ensure the insulation requirements between the positive access and the negativ...

Страница 57: ...e materials to prevent the entry of foreign bodies or moisture and ensure long term and normal operation of the inverter 5 4 Additional Grounding Connection Due to the transformer less design of the i...

Страница 58: ...ower System Inverter AC Grounding Electrode L1 L1 AC Circuit Breaker L2L3 L2 L3 Inverter 1 Inverter 2 Inverter n PE Equipotential cable PE PE Fig 5 7 Grounding of inverter 5 4 2 Additional Grounding T...

Страница 59: ...ing Torques 5 5 RS485 Communication Connection 5 5 1 Communication Overview There are two communication waterproof connection terminals on the bottom of the inverter RS485 A B terminals and RS485 inte...

Страница 60: ...ND LOCAL STOP Fig 5 10 Communication configuration The inverter operation information can be transferred to the PC of the installed monitoring software or to a local data collector through RS485 commu...

Страница 61: ...rter all inverters can be connected in a daisy chain through an RS485 communication cable The shielding layer of the RS485 cable should be single point grounded The length of an RS485 communication ca...

Страница 62: ...nection RS485 bus connection Terminating Resistor n 15 n 15 Inverter 1 Only out No 120ohm Yes 120ohm Inverter 2 n 1 In and Out No 120ohm Inverter n In and Out No 120ohm Yes 120ohm 5 5 3 RS485 Communic...

Страница 63: ...gland inside the lower part of the cabinet with duct seal If there is no other connection procedure reassemble and connect the front cover of the connection cabinet Seal the gap between the cable and...

Страница 64: ...of dry contact s cable is 28AWG 16AWG The devices to be connected to the dry contacts must comply with the related requirements AC Requirements DC Requirements Max Voltage 250Vac Max Current 5A Max V...

Страница 65: ...S485 daisy chain Inverter1 Inverter2 Inverter N RS485 connections Passive switch Master inverter Slave inverter Slave inverter IN OUT IN OUT OUT Data Logger RS485 PC RS232 DIN1 PGND DIN1 PGND LOCAL ST...

Страница 66: ...e for its intended use 8 The terminals not used underneath the inverter should be sealed 9 Warning signs labels are suitably affixed and durable 6 2 Commissioning Procedure If all of the items mention...

Страница 67: ...l 6 Commissioning 57 If the conditions are OK the inverter feeds AC power to the grid and enters into the running state Step 5Observe the status of LED indicator panel Refer to Tab 1 2LED indicator de...

Страница 68: ...nnect all of the PV string inputs Please strictly adhere to the above sequence The inverter may be damaged otherwise Step 3Wait about ten minutes until the capacitors inside the inverter have been dis...

Страница 69: ...ners and the O M company are responsible for the disposal of the inverter Some parts and devices in the inverter such as the LED indicator panel batteries modules and other components may cause enviro...

Страница 70: ...y 1 Measure the actual grid voltage and contact the local electric power company for solutions if the grid voltage is higher than the set value 2 Check whether the protection parameters are appropriat...

Страница 71: ...or solutions if the grid voltage is lower than the set value 2 Check whether the protection parameters are appropriately set via the APP or the LCD 3 Check whether the AC cable is firmly in place 4 If...

Страница 72: ...fault still exists contact Sungrow Service 012 Excessive leakage current 1 The fault can be caused by poor sunlight or damp environment and the inverter will be reconnected to the grid after the envi...

Страница 73: ...of the normal operation range of the inverter Wait for the inverter to return to normal If the fault still exists contact Sungrow Service 017 Grid voltage unbalance the inverter detects unbalanced th...

Страница 74: ...excessively high and out of the safe range 1 Check whether the inverter is directly exposed to sunlight If so take some shading measures 2 Check and clean the air ducts 3 Check whether there is 070 fa...

Страница 75: ...r to return to normal Disconnect the AC and DC switches and reconnect the AC and DC switches 15 minutes later to restart the inverter If the fault still exists contact Sungrow Service 043 Low ambient...

Страница 76: ...ntact Sungrow Service 078 081 PVx abnormal 1 Check if the xth PV string needs to be connected If not ignore the alarm and If so check the connection status and make sure it is connected reliably 2 Che...

Страница 77: ...le the AFD function through the APP or the LCD screen so that the inverter will recover to be normal 2 If the fault is not caused by the foregoing reasons and still exists contact Sungrow Service 105...

Страница 78: ...t is not caused by the foregoing reasons and still exists contact Sungrow Service The code 448 to code 471 are corresponding to string 1 to string 24 respectively 532 547 String x reverse connection a...

Страница 79: ...2 Check the module for abnormal aging 3 If the fault is not caused by the foregoing reasons and still exists contact Sungrow Service The code 580 and 587 are corresponding to string 17 and string 24 r...

Страница 80: ...enance Lethal voltage still exists in the inverter even after the inverter has been switched off and disconnected Please wait for at least ten minutes and then perform maintenance work Only qualified...

Страница 81: ...p 10 Clean the fan with soft brush or vacuum cleaner or replace the broken fans Step 11 Reassemble the fans back into the inverter and restart the inverter Cleaning Air Inlet and Outlet A huge amount...

Страница 82: ...thereby achieving remote maintenance on the inverter This manual describes only how to achieve near end maintenance via the Bluetooth connection For remote maintenance through the Eye or WiFi refer to...

Страница 83: ...four PV inverters in the system must be kept exactly the same The ISO function of all four PV inverters needs to be set to Enable 9 4 Menu iSolarCloud Running information More Home History record Eve...

Страница 84: ...n the APP to enter the login interface and click Direct Login to enter the next screen Step 2Open the APP after which the Bluetooth search screen pops up automatically and select the to be connected i...

Страница 85: ...contact SUNGROW to obtain the advanced account and corresponding password Step 4If the inverter is not initialized you will enter the quick setting screen of initialize protection parameter After fin...

Страница 86: ...iption No Designation Description 1 Date and time System date and time of the inverter 2 Inverter state Present operation state of the inverter For details refer to Tab 9 2Description of inverter stat...

Страница 87: ...SolarCloud app Start up The inverter is initializing and synchronizing with the grid Derating running The inverter derates actively due to environmental factors such as temperature or altitude Shut do...

Страница 88: ...ut string grid voltage grid current environment and other information Tab 9 4 Run info Parameter Description Input Total DC power kW the total PV input power MPPTx voltage V the input voltage MPPTx cu...

Страница 89: ...esistance to ground k Countries info Inverter selected country code Command info Inverter selected command information 9 8 History Record Tap on the navigation bar to enter the history record screen a...

Страница 90: ...detailed fault info as shown in following figure Fig 9 9 Detailed fault alarm info 9 8 2 Yields Records User can view various energy records power curve daily energy histogram daily energy histogram m...

Страница 91: ...output every year Click the to view the power curve page as shown in following figure Fig 9 10 Power curve Tap the time bar on the top of the screen to select a time segment and view the correspondin...

Страница 92: ...n as shown in the following figure Fig 9 11 More 9 9 1 Power On Power Off Click or and click in the dialog box popped out to start or stop the inverter as shown in the following figure Fig 9 12 Power...

Страница 93: ...is different from the value in the external metering device you should adjust energy by Total power yields compensation setting Reset to Factory Defaults All history information will be unrecoverable...

Страница 94: ...s 1 247 9 9 4 Operation Parameters Click the to check the operation parameters and set the related parameters as shown in the following figure The operation parameters include the active reactive powe...

Страница 95: ...s ON set the active power decline rate 6000 mi n 8 6000 min Power increase enable Set the power rise rate when a fault is removed When it is ON the active power raise rate can be set OFF OFF ON Power...

Страница 96: ...a PID false alarm and reminds the user to take corresponding measures After processing the alarm information can be cleared via the function After the PID Recovery Night Anti PID Day function is enab...

Страница 97: ...protection value 58 50Hz 50Hz 59 88Hz AC over frequency single stage protection value 60 50Hz 60 12Hz 65Hz Tab 9 10 Multi stage Protection Parameters Explanation Parameter Default Range AC under volta...

Страница 98: ...cy level 4 protection value 57Hz 53Hz 59 88Hz AC over frequency level 4 protection value 62Hz 60 12Hz 65Hz AC under voltage level 4 protection time 1 5s 0 05s 600s AC over voltage level 4 protection t...

Страница 99: ...l 3 protection time AC over voltage level 1 protection time AC over voltage level 2 protection time AC over voltage level 3 protection time AC under frequency level 1 protection time AC under frequenc...

Страница 100: ...ser Manual 90 9 9 6 Password Changing Tap to enter the modify password screen as shown in the following figure Fig 9 19 Change password The new password should consist of 6 characters a combination of...

Страница 101: ...current to the array 0A Output AC AC output power 125000 VA 50 Max AC output current 120 A Nominal AC voltage 3 PE 600 V AC voltage range 528 660 V NA 480 690 V IEC Nominal grid frequency 50 60 Hz Gri...

Страница 102: ...oth APP RS485 DC connection type OT or DT terminal Max 185mm2 350 Kcmil AC connection type OT or DT terminal Max 185mm2 350 Kcmil Compliance CE IEC 62109 1 2 IEC 61000 6 2 4 IEC 61727 IEC 62116 IEC 61...

Страница 103: ...he safety warnings or instructions contained in all documents relevant to the product Install or operate the product under incorrect safety or protection conditions Alter the product or supplied softw...

Страница 104: ...Australia SUNGROW Australia Group Pty Ltd NSW 61 2 9922 1522 service sungrowpower com au Brazil SUNGROW Power do Brasil Sao Paulo 55 015 9 98197824 kaue oliveira sa sungrowpower com France SUNGROW Fr...

Страница 105: ...Thailand SUNGROW Power Hong Kong Co Ltd Bangkok 66 891246053 service th sungrowpower com Spain SUNGROW Ib rica S L U Navarra service spain sungrow co Romania Service Partner Elerex 40 241762250 servi...

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