KEHUA TECH SPI-B Series User Manual
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KEHUA TECH SPI-B Series User Manual

String pv grid-tied inverter
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Summary of Contents for KEHUA TECH SPI-B Series

  • Page 3 Copyright © KehuaHengshengCo.,Ltd.2020.All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of KehuaHengshengCo.,Ltd. Trademarks and Permissions and other Kehua trademarks are trademarks of KehuaHengsheng Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders.
  • Page 4 SPI30K-B, SPI33K-B and SPI36K-B have six routes of DC input, SPI40K-B has nine routes of DC input, SPI50K-B and SPI60K-B has twelve routes of DC input, the SPI-B series (30K-60K) string PV grid-tied inverter is similar. The figures in this manual takes SPI60K-B for an example.
  • Page 5 SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual Foreword Symbol Description Alerts you to a high risk hazard that could, if not avoided, result in serious injury or death. Alerts you to a medium or low risk hazard that could, if not avoided, result in moderate or minor injury.

  • Page 6: Table Of Contents

    SPI-B Series (30K-60K) String PV Grid-tied Inverter Contents User Manual Contents 1 Safety Description......................... 1 1.1 Safety Announcements ............................. 1 1.1.1 Use Announcements ..........................1 1.1.2 PV Array Protection ..........................3 1.1.3 ESD Protection ............................3 1.1.4 Grounding Requirements ........................4 1.1.5 Moistureproof Protection ........................
  • Page 7 SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual Contents 3.2 Installation Preparation ..........................13 3.2.1 Installation Tools ........................... 13 3.2.2 Installation Environment ........................14 3.2.3 Installation Clearance ..........................14 3.3 Handling, Unpacking and Checking ......................14 3.3.1 Handling ..............................14 3.3.2 Unpacking and Checking ........................
  • Page 8 SPI-B Series (30K-60K) String PV Grid-tied Inverter Contents User Manual 6.1 Maintenance ..............................58 6.2 Troubleshooting .............................. 58 7 Package, Transportation, Storage ..................... 62 7.1 Package ................................62 7.2 Transportation ..............................62 7.3 Storage ................................62 A Technical Specifications ......................63 B Acronyms and Abbreviations ....................

  • Page 9: Safety Description

    SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual 1 Safety Description 1 Safety Description This chapter mainly describes the safety announcements. Prior to performing any work on the device, please read the user manual carefully, follow the operation and installation instructions and observe all danger, warning and safety information, which is to avoid human injury and device damage by irregular operations.
  • Page 10 SPI-B Series (30K-60K) String PV Grid-tied Inverter 1 Safety Description User Manual There is no operational part inside device. Please do not open the crust of device by yourself, or it may cause electric shock. The device damage caused by illegal operation is out of the guarantee range.

  • Page 11: Pv Array Protection

    SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual 1 Safety Description No liquid or other objects are allowed to enter the cabinet. In case of fire, please use dry power fire extinguisher. If using liquid fire extinguisher, it may cause electric shock.

  • Page 12: Grounding Requirements

    SPI-B Series (30K-60K) String PV Grid-tied Inverter 1 Safety Description User Manual 1.1.4 Grounding Requirements High leakage risk! Device must be grounded before performing electrical connection. The grounding terminal must be connected to ground.  When install device, it must be grounded first. When dismantle device, the grounding wire must be removed at last;...

  • Page 13: Measurement Under Operation

    SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual 1 Safety Description The configuration of PV array, grid level, grid frequency, etc. must meet the technical requirements of inverter. Grid-tied generation should be allowed by the local power supply department and the related operation should be performed by professionals.

  • Page 14: Operation Environment Requirements

    SPI-B Series (30K-60K) String PV Grid-tied Inverter 1 Safety Description User Manual 1.3 Operation Environment Requirements The operation environment may influence the life span and reliability of device. So, please avoid to use device in following environment:  The place where temperature and humidity beyond the technical specifications (temperature: -25℃～60℃;...

  • Page 15: Overview

    Figure2-1. PV grid-tied Transformer Power grid PV array inverter Figure2-1 PV grid-tied generation system 2.1.1 Apperance The appearance of SPI-B series (30K-60K) string PV grid-tied inverter is as shown in Figure2-2. Figure2-2 Appearance All rights reserved ©Kehua Hengsheng Co., Ltd.

  • Page 16: Model Meaning

    SPI-B Series (30K-60K) String PV Grid-tied Inverter 2 Overview User Manual 2.1.2 Model Meaning The model meaning of SPI-B series (30K-60K) string PV grid-tied inverter is as shown in Figure2-3. Non-isolated type Output power SPI series PV grid-tied inverter Figure2-3 Model meaning As shown in Figure2-3, "SPI"...

  • Page 18: Dc Switch

    SPI-B Series (30K-60K) String PV Grid-tied Inverter 2 Overview User Manual Type Mark Color Meaning Status Illustration WIFI/ GPRS has been connected WIFI/GPRS Green indicator WIFI/ GPRS has been disconnected Fault indicator The inverter has protection action. Button There are four buttons on the front panel of inverter, the button function is as shown in Table2-2.

  • Page 19: Working Principle

    SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual 2 Overview Figure2-6 DC switch When maintenance or wiring, it should switch off DC switch. 2.3 Working Principle PV array input connected with inverter, which will combine into n routes of MPPT circuits inside the inverter to do the max.

  • Page 20: Installation

    SPI-B Series (30K-60K) String PV Grid-tied Inverter 3 Installation User Manual 3 Installation This chapter mainly introduces the inverter's installation, including installation process, installation preparation, handling, unpacking and checking, installation procedures, electrical connection. check the installation ,etc. 3.1 Installation Process The installation process of inverter is as shown in Figure3-1.

  • Page 21: Installation Preparation

    SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual 3 Installation 3.2 Installation Preparation 3.2.1 Installation Tools Tools All rights reserved ©Kehua Hengsheng Co., Ltd.

  • Page 22: Installation Environment

    SPI-B Series (30K-60K) String PV Grid-tied Inverter 3 Installation User Manual 3.2.2 Installation Environment The installation environment of inverter should meet the following items:  Do not install the inverter in the place with poor ventilation.  There has sufficient fresh-air supply around the inverter.

  • Page 23: Unpacking And Checking

    SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual 3 Installation When handling device, move it carefully to avoid impact or fall. When handling device, keep it vertical. Don't put it down or put it up suddenly. 3.3.2 Unpacking and Checking Determine the unpacking site in advance.
  • Page 24 SPI-B Series (30K-60K) String PV Grid-tied Inverter 3 Installation User Manual Figure3-3 The dimensions of installation holes of installation holder(Unit: mm) Vertical installation is perfect. If it should be tilt, the vertical gradient should not exceed ±15°. The installation procedures are as follows:...
  • Page 25 SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual 3 Installation Step 2 According to the dimensions of installation holes of installation holder (as shown in Figure3-3), mark the position of installation holes on the wall. Drill holes on the wall vertically by hammer drilling according to the marked position.
  • Page 26 SPI-B Series (30K-60K) String PV Grid-tied Inverter 3 Installation User Manual Figure3-6 Fix the installation holder on the wall Step 5 As shown in Figure3-7, uplift the inverter and insert the holes in the back of the inverter into the bulge of installation holder (total two positions) slowly.

  • Page 27: Electrical Connection

    SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual 3 Installation Figure3-8 Fasten the inverter ----End 3.5 Electrical Connection The wiring for inverter be performed in the bottom of inverter. The mark is as shown in Figure3-9, and the mark meaning is as shown in Table3-1 The recommended wire requirements is as shown in Table3-2.
  • Page 28 SPI-B Series (30K-60K) String PV Grid-tied Inverter 3 Installation User Manual As the SPI30K-B、SPI33K-B and SPI36K-B have six routes of DC input, the three routes of DC input in the mark PV3+, PV3-, PV4+ and PV4- of Figure3-9 don't connect with PV connector. Use plugs to block them.

  • Page 29: Electrical Connection Announcements

    SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual 3 Installation The cables in this table are based on UL copper wire. If other wires are used, please replace them according to the standard. The wire materials selected by our company have passed the national standard certification or UL certification.

  • Page 30: Dc Connection

    SPI-B Series (30K-60K) String PV Grid-tied Inverter 3 Installation User Manual Figure3-11 The grounding of inverter Step 2 Switch off the DC switch connected with PV array and DC switch in the inverter. Step 3 Connect the DC input in the inverter with the PV array.
  • Page 31 SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual 3 Installation Figure3-12 Positive connector and positive metal terminal Figure3-13 Negative connector and negative metal terminal Step 1 Dismantle the sealing nuts of positive connector and negative connector respectively. Step 2 Strip the insulation layer of positive wire and negative wire for about 7mm by wire stripper, as shown in Figure3-14 and Figure3-15.

  • Page 32: Ac Connection

    SPI-B Series (30K-60K) String PV Grid-tied Inverter 3 Installation User Manual Step 5 Insert the positive wire and negative wire into the corresponding insulation crust respectively. If there has a click sound, it means it have been inserted properly. Step 6 Tighten the sealing nuts of positive connector and negative connector to the corresponding insulation crusts respectively.
  • Page 33 SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual 3 Installation Figure3-20 Dismantle cover Step 2 Strip the outer insulation jacket of AC wire for about 90mm and the insulation jacket of wire for about 15mm, as show in Figure3-21.

  • Page 34: Com. Communication Connection

    SPI-B Series (30K-60K) String PV Grid-tied Inverter 3 Installation User Manual Figure3-22 Wiring diagram for AC wire Step 4 After wiring, tighten the nylon cable gland and install the cover. When multiple inverters are in parallel, it's necessary to add breaker with impact tripping function in the AC output backend.
  • Page 35 SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual 3 Installation Figure3-23 Dismantle cover Step 2 Loosen the nylon cable gland in the "com."(two pieces) and then draw the communication wires through it. Step 3 Connect communication wire.  Ethernet communication connection Crimp Ethernet communication wire according to Figure3-24, and then insert it into Ethernet communication port in the communication board, as shown in Figure3-25.
  • Page 36 SPI-B Series (30K-60K) String PV Grid-tied Inverter 3 Installation User Manual Figure3-25 Ethernet communication connection  RS485 communication connection Connect RS485 communication wires with RS485 ports in the communication board respectively, as shown in Figure3-26. Connect the other end of RS485 communication wire with computer or logger.
  • Page 37 SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual 3 Installation The communication address and baud rate of inverter can be set by Kehua monitor software. The default baud rate is 9600. If any doubt, contact manufacturer. If there has multiple inverters, all inverters can realize the communication connection by communication wires in chrysanthemum chain, as shown in Figure3-27.

  • Page 38: Wifi/Gprs Communication Connection(Optional)

    SPI-B Series (30K-60K) String PV Grid-tied Inverter 3 Installation User Manual Figure3-29 DRM communication connection Step 4 After wiring, tighten the nylon cable gland and install cover. ----End 3.5.5 WIFI/GPRS Communication Connection(Optional) If there has optional component WIFI/GPRS stick, insert the equipped WIFI/GPRS stick into the WIFI/GPRS port to do the internet monitoring, as shown in Figure3-30.

  • Page 39: Check The Installation

    SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual 3 Installation Smart phone Inverter (With GPRS) Internet Server Router PC monitoring Inverter (With WIFI) Figure3-31 WIIF/GPRS monitoring plan 3.6 Check the Installation After installation, check the following items: Check if the connection in the DC input, AC output and communication wire are right.

  • Page 40: Operation Interface

    SPI-B Series (30K-60K) String PV Grid-tied Inverter 4 Operation Interface User Manual 4 Operation Interface This chapter mainly introduces the operation interface of inverter. 4.1 Initial Wizard If it's the first time to power on LCD, it will enter the initial wizard. It can set the language, date &...
  • Page 41 SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual 4 Operation Interface Figure4-3 Date & time setting interface Figure4-4 Screen setting interface Table4-1 Button function in the initial wizard interface Button Function  Return to the previous level  Cancel ...

  • Page 42: Main Interface

    SPI-B Series (30K-60K) String PV Grid-tied Inverter 4 Operation Interface User Manual 4.2 Main Interface The main interface shows the current status of the inverter, MPPT voltage/ current, grid voltage/ current, output power, daily power generation, CO2 reduction, total power generation and time, etc.

  • Page 43: Running Information

    SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual 4 Operation Interface Figure4-6 Main menu Table4-3 Button function in the main menu Button Function  Quit the main menu ▲  Choose left ▼  Choose right  Enter the next level 4.3.1 Running Information...
  • Page 44 SPI-B Series (30K-60K) String PV Grid-tied Inverter 4 Operation Interface User Manual Figure4-8 Running information interface (2) Figure4-9 Running information interface(3) Figure4-10 Running information interface(4) All rights reserved ©Kehua Hengsheng Co., Ltd.

  • Page 45: Power Query

    SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual 4 Operation Interface Figure4-11 Running information interface(5) Table4-4 Button function in the running information interface Button Function Return to the previous level ▲ Page up ▼ Page down 4.3.2 Power Query In the main interface, press "...
  • Page 46 SPI-B Series (30K-60K) String PV Grid-tied Inverter 4 Operation Interface User Manual Figure4-13 Daily power generation query interface(chart) Figure4-14 Daily power generation query interface(figure) Figure4-15 Monthly power generation query interface(chart) All rights reserved ©Kehua Hengsheng Co., Ltd.

  • Page 47: Record Query

    SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual 4 Operation Interface Figure4-16 Monthly power generation query interface(figure) Figure4-17 Total power generation query interface Table4-5 Button function in the power generation query interface Button Function  Return to the previous level ...
  • Page 48 SPI-B Series (30K-60K) String PV Grid-tied Inverter 4 Operation Interface User Manual view the record information. In the record query interface, you can query the current alarm, history alarm, user log, grid-connected/ off-grid log, power dispatch log and fault wave, as shown in Figure4-18 to Figure4-24, the relevant button function is as shown in Table4-6.
  • Page 49 SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual 4 Operation Interface Figure4-21 User log interface Figure4-22 Gird-connected/off-grid log interface Figure4-23 Power dispatch log interface All rights reserved ©Kehua Hengsheng Co., Ltd.

  • Page 50: Setting

    SPI-B Series (30K-60K) String PV Grid-tied Inverter 4 Operation Interface User Manual Figure4-24 Fault wave list interface Table4-6 Button function in the record query interface Button Function  Return to the previous level ▲  Choose upward  Page up ▼...
  • Page 51 SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual 4 Operation Interface Figure4-25 Login interface Table4-7 Button function in the login interface Button Function  Return to the previous level  Quit the selection box ▲  Choose upward ...
  • Page 52 SPI-B Series (30K-60K) String PV Grid-tied Inverter 4 Operation Interface User Manual Figure4-26 User setting interface Figure4-27 Language setting interface Figure4-28 Screen setting interface All rights reserved ©Kehua Hengsheng Co., Ltd.
  • Page 53 SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual 4 Operation Interface Figure4-29 Price setting interface Figure4-30 Password setting interface Table4-8 Button function in the user setting interface Button Function  Return to the previous level  Quit the selection box ▲...
  • Page 54 SPI-B Series (30K-60K) String PV Grid-tied Inverter 4 Operation Interface User Manual Administrator setting interface The password of administrator is 200000, as shown in Figure4-31, the relevant button function is as shown in Table4-9 Figure4-31 Login interface Table4-9 Button function in the login interface...
  • Page 55 SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual 4 Operation Interface Set the engineer setup according to the practical application and the grid-tied standard, in order to use the default setting. Figure4-32 General setting interface Figure4-33 Communication setting interface Figure4-34 RS485 setting interface All rights reserved ©Kehua Hengsheng Co., Ltd.
  • Page 56 SPI-B Series (30K-60K) String PV Grid-tied Inverter 4 Operation Interface User Manual Figure4-35 Total power revise interface Figure4-36 Reset password interface Figure4-37 Records management interface All rights reserved ©Kehua Hengsheng Co., Ltd.
  • Page 57 SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual 4 Operation Interface Figure4-38 Restore default setting interface Figure4-39 Engineering setup interface(1) Figure4-40 Engineering setup interface(2) All rights reserved ©Kehua Hengsheng Co., Ltd.
  • Page 58 SPI-B Series (30K-60K) String PV Grid-tied Inverter 4 Operation Interface User Manual Figure4-41 Advanced setting interface(1) Figure4-42 Advanced setting interface(2) Figure4-43 PV branch warning mask interface All rights reserved ©Kehua Hengsheng Co., Ltd.
  • Page 59 SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual 4 Operation Interface Figure4-44 Grid protect parameter interface(1) Figure4-45 Grid protect parameter interface(2) Figure4-46 Grid protect parameter interface(3) All rights reserved ©Kehua Hengsheng Co., Ltd.
  • Page 60 SPI-B Series (30K-60K) String PV Grid-tied Inverter 4 Operation Interface User Manual Figure4-47 L/HVRT mode parameter interface Figure4-48 L/HFRT mode parameter interface Figure4-49 P-V mode parameter interface All rights reserved ©Kehua Hengsheng Co., Ltd.
  • Page 61 SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual 4 Operation Interface Figure4-50 P-F mode parameter interface Figure4-51 Q-V mode parameter interface Figure4-52 SPF mode parameter interface Table4-10 Button function in the administrator setting interface Button Function  Return to the previous level ...

  • Page 62: On/ Off

    SPI-B Series (30K-60K) String PV Grid-tied Inverter 4 Operation Interface User Manual Button Function ▼  Choose downward  Number "-"  Enter the next level  Confirm the selection  Select number bit in the selection box  Long press to save 4.3.5 ON/ OFF...

  • Page 63: About

    SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual 4 Operation Interface Table4-11 Button function in the ON/ OFF interface Button Function  Return to the previous level  Cancel  Enter the confirmation interface  Confirm 4.3.6 About In the main interface, press " " button to enter the main menu. In the main menu, press "▼" button five times and then press "...
  • Page 64 SPI-B Series (30K-60K) String PV Grid-tied Inverter 4 Operation Interface User Manual Table4-12 Button function in the about interface Button Function  Return to the previous level ▲  Page up ▼  Page down All rights reserved ©Kehua Hengsheng Co., Ltd.

  • Page 65: Startup And Shutdown

    SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual 5 Startup and Shutdown 5 Startup and Shutdown This chapter mainly introduces how to start and shut down the inverter. 5.1 Start Inverter Step 1 Switch on the DC switch in the inverter and the DC switch in the project site. When the PV array provides enough startup voltage, PV connection indicator will be on.

  • Page 66: Maintenance And Troubleshooting

    SPI-B Series (30K-60K) String PV Grid-tied Inverter 6 Maintenance and Troubleshooting User Manual 6 Maintenance and Troubleshooting This chapter mainly describes the maintenance and troubleshooting. 6.1 Maintenance The inverter needn’t to be maintained regularly, but the sundries or dust may influence the heat dissipation performance, so, use soft brush to clean the inverter.
  • Page 67 SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual 6 Maintenance and Troubleshooting Table6-1 Fault situation Alarm Items Protection Off-grid Restorability requirement PV input over-voltage Protection protection Input (PV plate) reversed Protection connection protection Insulation fault Protection DC input over-current —...
  • Page 68 SPI-B Series (30K-60K) String PV Grid-tied Inverter 6 Maintenance and Troubleshooting User Manual Alarm Items Protection Off-grid Restorability requirement Busbar over-voltage Protection protection Busbar unbalance Protection protection Radiator Protection over-temperature Inner over-temperature Protection Power module Protection over-temperature Alarm/ Inner fan fault alarm...
  • Page 69 SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual 6 Maintenance and Troubleshooting If the inverter has an alarm mentioned in Table6-1, please shut down inverter(refer to 5.2 Shut Down Inverter), 5 minutes later, restart the inverter (refer to 5.1 Start Inverter). If the alarm status is not removed, please contact our local dealer or service center.

  • Page 70: Package, Transportation, Storage

    SPI-B Series (30K-60K) String PV Grid-tied Inverter 7 Package, Transportation, Storage User Manual 7 Package, Transportation, Storage This chapter mainly describes the package, transportation and storage. 7.1 Package The package of product is carton. When packing, pay attention to the placing direction requirements.

  • Page 71: A Technical Specifications

    SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual A Technical Specifications Technical Specifications SPI30K-B Items Min. Typical Max. Illustration Max. PV input voltage(Vdc) 1100 MPPT working voltage with full load(Vdc) PV connected/ MPPT tracking Isc PV (absolute maximum) 2*37.5A （A）...
  • Page 72 SPI-B Series (30K-60K) String PV Grid-tied Inverter A Technical Specifications User Manual Items Min. Typical Max. Illustration protection (A) Maximum output fault 85.9 current(A) Rated grid voltage(Vac) 400V(3P4W) Settable(If it is necessary to set Grid voltage range(Vac) the parameter, please contact the manufacturer.)
  • Page 73 SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual A Technical Specifications Items Min. Typical Max. Illustration Display way LED indicator RS485/ Ethernet/ DRM(optional)/ WIFI(optional)/ Communication port GPRS(optional)/ PLC(optional) If the operation temperature Operation temperature(℃) exceeds 50℃, it is necessary to decrease rated power to use.
  • Page 74 SPI-B Series (30K-60K) String PV Grid-tied Inverter A Technical Specifications User Manual Items Min. Typical Max. Illustration Output power(kW) Power （ maximum continuous） (VA) Current(maximum continuous)a.c.A(A) Current (inrush) peak and 57.9 duration Maximum output overcurent 61.5 protection (A) Maximum output fault 93.7...
  • Page 75 SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual A Technical Specifications Items Min. Typical Max. Illustration IP65 Protection grade(IP) With no transformer, the input cannot connected with Isolation type No isolation ground, or the grounding output must with isolation transformer.
  • Page 76 SPI-B Series (30K-60K) String PV Grid-tied Inverter A Technical Specifications User Manual Items Min. Typical Max. Illustration PV connected/ MPPT tracking Isc PV (absolute maximum) 2*37.5A （A） DC current of each route(A) PV input power(kW) Startup voltage(V) Grid features Output power(kW) 39.6...
  • Page 77 SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual A Technical Specifications Items Min. Typical Max. Illustration efficiency Grid-connected current Under full-load harmonic Power factor range (ahead) (lag) Current DC component <260mA Self power consumption at <1W night Protection grade(IP)
  • Page 78 SPI-B Series (30K-60K) String PV Grid-tied Inverter A Technical Specifications User Manual Items Min. Typical Max. Illustration When altitude exceeds Altitude(m) 5000 3000m, necessary decrease rated power to use. SPI40K-B Items Min. Typical Max. Illustration MPPT input voltage(Vdc) 1100 MPPT working voltage with...
  • Page 79 SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual A Technical Specifications Items Min. Typical Max. Illustration Grid-tied current harmonic Under full-load Power factor range (leading) (lagging) Current DC component <288mA Self power consumption at <1W night IP65 Protection grade(IP)
  • Page 80 SPI-B Series (30K-60K) String PV Grid-tied Inverter A Technical Specifications User Manual  Specifications are subject to change without prior notice. SPI50K-B Items Min. Typical Illustration MPPT input voltage(Vdc) 1100 MPPT working voltage with full load(Vdc) PV connected/ MPPT tracking...
  • Page 81 SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual A Technical Specifications Items Min. Typical Illustration Current DC component <362mA Self power consumption at <1W night IP65 Protection grade(IP) With no transformer, the input cannot be connected with Isolation type...
  • Page 82 SPI-B Series (30K-60K) String PV Grid-tied Inverter A Technical Specifications User Manual SPI60K-B Items Min. Typical Max. Illustration MPPT input voltage(Vdc) 1100 MPPT working voltage with full load(Vdc) connected/ MPPT 12/4 tracking DC current of each route(A) PV input power(kW)
  • Page 83 SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual A Technical Specifications Items Min. Typical Max. Illustration Current DC component <433mA Self power consumption at <1W night IP65 Protection grade(IP) With no transformer, the input cannot be connected Isolation type...

  • Page 84: B Acronyms And Abbreviations

    SPI-B Series (30K-60K) String PV Grid-tied Inverter B Acronyms and Abbreviations User Manual Acronyms and Abbreviations Alternating Current Direct Current Liquid Crystal Display Light-emitting Diode Maximum Power Point Tracking MPPT Protective Earthing Photovoltaic All rights reserved ©Kehua Hengsheng Co., Ltd.
  • Page 85 SPI-B Series (30K-60K) String PV Grid-tied Inverter User Manual B Acronyms and Abbreviations RS485 Recommend Standard485 All rights reserved ©Kehua Hengsheng Co., Ltd.

This manual is also suitable for:

Spi30k-bSpi33k-bSpi36k-bSpi40k-bSpi50k-bSpi60k-b

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