Goodwe GT Series User Manual
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Goodwe GT Series User Manual

Goodwe GT Series User Manual

Grid-tied pv inverter
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User Manual
Grid-Tied PV Inverter
GT Series
75-125kW
V1.1-2024-11-27

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Summary of Contents for Goodwe GT Series

  • Page 1 User Manual Grid-Tied PV Inverter GT Series 75-125kW V1.1-2024-11-27...
  • Page 2 Copyright ©GoodWe Technologies Co., Ltd., 2024. All rights reserved No part of this manual can be reproduced or transmitted to the public platform in any form or by any means without the prior written authorization of GoodWe Technologies Co., Ltd. Trademarks and other GOODWE trademarks are trademarks of GoodWe Technologies Co., Ltd.

  • Page 3: Table Of Contents

    CONTENT User Manual V1.1-2024-11-27 CONTENT 1 About This Manual ............1 1.1 Applicable Model ..................1 1.2 Target Audience ..................1 1.3 Symbol Definition ..................2 2 Safety Precaution ............2 2.1 General Safety ................... 2 2.2 DC Side ....................... 3 2.3 AC Side ....................... 4 2.4 Inverter Installation ...................
  • Page 4 CONTENT User Manual V1.1-2024-11-27 6.1 Safety Precautions .................. 22 6.2 Connecting the PE Cable ................ 24 6.3 Connecting the AC Output Cable ............24 6.4 Connecting the PV Input Cable ............... 27 6.5 Communication ..................31 6.5.1 RS485 Communication Networking ..............31 6.5.2 Power Limit Networking ..................31 6.5.3 Connecting the Communication Cable ............34 6.5.4 Installing the Smart Dongle (optional) ............36...
  • Page 5 CONTENT User Manual V1.1-2024-11-27 9.1 Power Off the Inverter ................68 9.2 Removing the Inverter ................68 9.3 Disposing of the Inverter ................68 9.4 Troubleshooting ..................69 9.5 Routine Maintenance ................74 10 Technical Parameters ...........76...

  • Page 6: About This Manual

    All the installers and users have to be familiar with the product features, functions, and safety precautions. This manual is subject to update without notice. For more product details and latest documents, visit www.en.goodwe.com. 1.1 Applicable Model...

  • Page 7: Symbol Definition

    • Strictly follow the installation, operation, and configuration instructions in this manual. The manufacturer shall not be liable for equipment damage or personal injury if you do not follow the instructions. For more warranty details, visit : • https://en.goodwe.com/warranty.asp.

  • Page 8: Dc Side

    02 Safety Precaution User Manual V1.1-2024-11-27 2.2 DC Side DANGER • Connect the DC cables using the delivered DC connectors and terminals. The manufacturer shall not be liable for the equipment damage if other connectors or terminals are used. • Confirm the following information before connecting the PV string to the inverter. Otherwise, the inverter may be damaged permanently or even cause fire and cause personal and property losses.

  • Page 9: Ac Side

    02 Safety Precaution User Manual V1.1-2024-11-27 2.3 AC Side WARNING • The voltage and frequency at the connecting point should meet the on-grid requirements. • An additional protective device like the circuit breaker or fuse is recommended on the AC side.

  • Page 10: Personnel Requirements

    Grid cabinet PV String Model Description GW75K-GT-LV-G10 Referring to Explanation Brand code GW: GoodWe Nominal power 75K: the nominal power is 75kW Series code GT: GT Series Grid type LV: Low Voltage Grid Version code the inverter version is 1.0...

  • Page 11: Circuit Diagram

    03 Product Introduction User Manual V1.1-2024-11-27 3.2 Circuit Diagram The circuit diagram of GW75K-GT-LV-G10/GW100K-GT is as follows. DC Switch PV1+ PV2+ MPPT1 PV1- PV2- PV3+ PV4+ MPPT2 PV3- PV4- DC/AC Inverter Filter Filter Filter Circuit PV13+ PV14+ MPPT7 PV13- PV14- AC SPD PV15+ PV16+...

  • Page 12: Supported Grid Types

    03 Product Introduction User Manual V1.1-2024-11-27 3.3 Supported Grid Types NOTICE For the TT grid structure, the effective value of the voltage between the neutral wire and the ground wire must be less than 20V. The grid structures supported by GW75K-GT-LV-G10,GW100K-GT, GW110K-GT and GW125K-GT are TN-S, TN-C,TN-C-S, TT, IT, as shown in the figure below: TN-S TN-C...

  • Page 13: Appearance

    03 Product Introduction User Manual V1.1-2024-11-27 3.4 Appearance 3.4.1 Parts Without LCD With LCD...
  • Page 14 03 Product Introduction User Manual V1.1-2024-11-27 Parts Description Indicator Indicates working state of the inverter. Button (optional) To control contents displayed on the screen. LCD (optional) To check the parameters of the inverter. To connect the PV module DC input cables. DC Input Terminal GW75K-GT-LV-G10&GW100K-GT: MPPT1/3/5/7;...

  • Page 15: Dimensions

    03 Product Introduction User Manual V1.1-2024-11-27 3.4.2 Dimensions 300mm 788mm 930mm 3.4.3 Indicators Indicator Status Description ON = EQUIPMENT POWER ON OFF = EQUIPMENT POWER OFF ON = THE INVERTER IS FEEDING POWER OFF = THE INVERTER IS NOT FEEDING POWER SINGLE SLOW FLASH = SELF CHECK BEFORE CONNECTING TO THE GRID SINGLE FLASH = CONNECTING TO THE GRID...

  • Page 16: Functionalities

    03 Product Introduction User Manual V1.1-2024-11-27 3.5 Functionalities AFCI Inverters with AFCI functionality has built-in current sensors to detect the high frequency current signals and decide whether an electric arc occurs. If there is, the inverter is able for self- protection automatically.
  • Page 17 03 Product Introduction User Manual V1.1-2024-11-27 Communication The inverter supports: parameter setting via Bluetooth; connection to the SMES monitoring platform via WiFi, 4G, or WiFi+LAN, thus monitoring the operations of the inverter and the power plant, etc. via SMES App. •...

  • Page 18: Inverter Operation Mode

    03 Product Introduction User Manual V1.1-2024-11-27 3.6 Inverter Operation Mode Waiting Mode Fault Mode Upgrading Mode Grid-tied Mode Self-check Mode Mode Description Waiting Waiting stage after the inverter is powered on. • When the conditions are met, the inverter enters the self-check mode. Mode •...

  • Page 19: Nameplate

    03 Product Introduction User Manual V1.1-2024-11-27 Nameplate The nameplate is for reference only. Goodwe trademark, product type, and product model Technical parameters Safety symbols and certification marks Contact information and serial number...

  • Page 20: Check And Storage

    04 Check and Storage User Manual V1.1-2024-11-27 4 Check and Storage 4.1 Check Before Receiving Check the following items before receiving the product. 1. Check the outer packing box for damage, such as holes, cracks, deformation, and others signs of equipment damage. Do not unpack the package and contact the supplier as soon as possible if any damage is found.

  • Page 21: Storage

    04 Check and Storage User Manual V1.1-2024-11-27 4.3 Storage NOTICE The storage time of the inverter should not exceed two years. If the storage time exceeds two years, it must be inspected and tested by professionals before being put into use. If the equipment is not to be installed or used immediately, please ensure that the storage environment meets the following requirements: 1.
  • Page 22 05 Installation User Manual V1.1-2024-11-27 Children No Touch ≥600mm ≥100mm ≥600mm ≥700mm ≥1000mm ≥600mm ALT: 4000m -30~60℃ IP66 0~100% Mounting Support Requirements • The mounting support shall be nonflammable and fireproof. • Make sure that the support surface is solid enough to bear the product weight load. Installation Angle Requirements •...

  • Page 23: Inverter Installation

    05 Installation User Manual V1.1-2024-11-27 Installation Tool Requirements The following tools are recommended when installing the equipment. Use other auxiliary tools on site if necessary. Safety shoes Socket wrench Goggles Safety gloves Dust mask Diagonal pliers Hammer drill DC terminal Wire stripper Heat gun crimping tool...

  • Page 24: Installing The Inverter

    05 Installation User Manual V1.1-2024-11-27 5.2.2 Installing the Inverter NOTICE • Avoid the water pipes and cables buried in the wall when drilling holes. • Wear goggles and a dust mask to prevent the dust from being inhaled or contacting eyes when drilling holes.
  • Page 25 05 Installation User Manual V1.1-2024-11-27 Mounting on the bracket 24N·m...
  • Page 26 05 Installation User Manual V1.1-2024-11-27 Installing the Inverter NOTICE • Prepare the handles or hoisting rings. Contact the dealer or the after-sales center to purchase them if needed. • Confirm the installation of the handles or hoisting rings are secure enough to bear the weight of the inverter.

  • Page 27: Electrical Connection

    06 Electrical Connection User Manual V1.1-2024-11-27 6 Electrical Connection 6.1 Safety Precautions DANGER • Disconnect the DC switch and the AC output switch of the inverter to power off the equipment before any electrical connections. Do not work with power on. Otherwise, an electric shock may occur.
  • Page 28 06 Electrical Connection User Manual V1.1-2024-11-27 Cable Specification Cable Type Outer Diameter Cross-sectional Area (mm) 11 ~ 32 PE cable Copper Outdoors cable ≥ S/2* • Copper core : 70 ~ 240 • Aluminum alloy cable or Multi-core output copper-clad aluminum outdoor 22 ~ 64 cable...

  • Page 29: Connecting The Pe Cable

    06 Electrical Connection User Manual V1.1-2024-11-27 6.2 Connecting the PE Cable WARNING • The PE cable connected to the enclosure of the inverter cannot replace the PE cable connected to the AC output port. Both of the two PE cables must be securely connected. •...
  • Page 30 06 Electrical Connection User Manual V1.1-2024-11-27 An AC circuit breaker should be installed on the AC side to make sure that the inverter can safety disconnect the grid when an exception happens. Select the appropriate AC circuit breaker in compliance with local laws and regulations. Recommended AC circuit breakers: Inverter model AC circuit breaker GW100K-GT...
  • Page 31 06 Electrical Connection User Manual V1.1-2024-11-27 12.5-13mm A+3mm A+3mm 12.5-13mm Multi-core Multi-core 22-64mm 22-64mm Single-core Single-core 11-32mm 11-32mm Step 1: Crimp the AC cable OT terminal, and prepare the AC output cable. Step 2: Remove the AC terminal cover. Step 3: Select the corresponding hole diameter according to the AC cable diameter specification, and cut off the harf-round part of the plastic pads that is located on the AC terminal cover and inverter.

  • Page 32: Connecting The Pv Input Cable

    06 Electrical Connection User Manual V1.1-2024-11-27 6.4 Connecting the PV Input Cable DANGER • Do not connect the same PV string to multiple inverters, as this may cause damage to the inverter. • Confirm the following information before connecting the PV string to the inverter. Otherwise, the inverter may be damaged permanently or even cause fire and cause personal and property losses.
  • Page 33 06 Electrical Connection User Manual V1.1-2024-11-27 DC Input Terminal Connection Manner GW75K-GT-LV-G10,GW100K-GT When the quantity of PV strings ≤ 8, connect the PV strings to the inverter from MPPT1 to MPPT8 in turn. When the quantity of PV strings >8, please follow the table to connect the PV strings to the inverter in turn.
  • Page 34 06 Electrical Connection User Manual V1.1-2024-11-27 GW110K-GT, GW125K-GT When the quantity of PV strings ≤ 10, connect the PV strings to the inverter from MPPT1 to MPPT10 in turn. When the quantity of PV strings >10, please follow the table to connect the PV strings to the inverter in turn.
  • Page 35 06 Electrical Connection User Manual V1.1-2024-11-27 Connecting the DC Input Cable Step 1 Prepare DC cables. Step 2 Crimp the DC cable with the DC PV terminals. Step 3 Disassemble the PV connectors. Step 4 Make the DC cable and detect the DC input voltage. Step 5 Plug the PV connectors into the DC input terminals.

  • Page 36: Communication

    06 Electrical Connection User Manual V1.1-2024-11-27 6.5 Communication 6.5.1 RS485 Communication Networking NOTICE • If multiple inverters are connected to the EzLogger3000C for networking, the maximum number of inverters per COM port of the EzLogger3000C is 20, and the total length of the connecting cable should not exceed 1000m.
  • Page 37 06 Electrical Connection User Manual V1.1-2024-11-27 WARNING 1. The place to snap fit the CT shall be near the grid connection point and the installation direction must be right. “-->” of CT refers that the inverter current flows to the Grid. If CT is installed reversely, the inverter will be triggered with an alarm and unable to realize the power limit function.
  • Page 38 06 Electrical Connection User Manual V1.1-2024-11-27 GM330 Power export limit of single inveter with Load Circuit Breaker Inverter Grid Meter Circuit Breaker Circuit Breaker Smart meter GM330 RS485_A2 RS485_B2 EzLogger3000C+GM330 Power export limit of multi inveters with Load Circuit Breaker Inverter 1 Inverter N ..

  • Page 39: Connecting The Communication Cable

    06 Electrical Connection User Manual V1.1-2024-11-27 6.5.3 Connecting the Communication Cable NOTICE • The communication port can be configured differently according to the regulatory requirements in different regions. • The remote shutdown function, DRED/RCR and emergency power off diabled in default. Enable it via SolarGo App if needed. Detailed steps, refer to SolarGo App User Manual.
  • Page 40 06 Electrical Connection User Manual V1.1-2024-11-27 Step 1: Prepare the communication cable. Step 2: Thread the communication cable into the communication connector in sequence, insert communication wires to the communication terminal, and assemble the communication terminal into the communication connector. Step 3: Connect the communication connector into the communication port on the inverter.

  • Page 41: Installing The Smart Dongle (Optional)

    NOTICE Refer to the delivered smart dongle user manual to get more introduction to the module. For more detailed information, visit https://en.goodwe.com/.

  • Page 42: Equipment Commissioning

    07 Equipment Commissioning User Manual V1.1-2024-11-27 7 Equipment Commissioning 7.1 Check Items before Power On Check Item The inverter is firmly installed in a clean place where is well-ventilated and easy to operate. The PE cable, DC input cable, AC output cable, and communication cable are connected correctly and securely.

  • Page 43: System Commissioning

    08 System Commissioning User Manual V1.1-2024-11-27 8 System Commissioning 8.1 Indicators and Button Indicator Status Description ON = EQUIPMENT POWER ON OFF = EQUIPMENT POWER OFF ON = THE INVERTER IS FEEDING POWER OFF = THE INVERTER IS NOT FEEDING POWER SINGLE SLOW FLASH = SELF CHECK BEFORE CONNECTING TO THE GRID SINGLE FLASH = CONNECTING TO THE GRID...

  • Page 44: Setting Inverter Parameters Via Lcd

    08 System Commissioning User Manual V1.1-2024-11-27 8.2 Setting Inverter Parameters via LCD NOTICE • The screen shots are for reference only. The actual display may differ. • The name, range, and default value of the parameters is subject to change or adjust. The actual display prevails.
  • Page 45 08 System Commissioning User Manual V1.1-2024-11-27 First level menu Second level menu Long press Normal for 2s Set language Pac=xxx W Set Safety Short press Short press xxxx-xx-xx Set Date xx:xx:xx Set Time Short press Short press Vpv1-3(4-6/7-9/10)= W/L Reset xx/xx/xxV W/L Reload Short press...

  • Page 46: Inverter Parameter Introduction

    08 System Commissioning User Manual V1.1-2024-11-27 8.2.2 Inverter Parameter Introduction Parameters Description Normal Home page. Indicates the real-time power of the inverter. pac=xxxW 2022-02-14 Check the time of the country/region. 09:01:10 VPv1 Check the DC input voltage of the inverter. IPv1 Check the DC input current of the inverter.

  • Page 47: Setting Inverter Parameters Via App

    08 System Commissioning User Manual V1.1-2024-11-27 Parameters Description With LVRT on, the inverter will stay connected with the utility grid LVRT after a short-term utility grid low voltage exception occurs. With HVRT on, the inverter will stay connected with the utility grid HVRT after a short-term utility grid high voltage exception occurs.

  • Page 48: App Structure

    08 System Commissioning User Manual V1.1-2024-11-27 Method 2: Scan the QR code below to download and install the app. SolarGo App 8.3.2 App Structure...

  • Page 49: Introductions To Login Page

    08 System Commissioning User Manual V1.1-2024-11-27 8.3.3 Introductions to Login Page Name/Icon Description Tap the icon to download the SEMS Portal app. Tap to read the connection guide. Not found • Check information such as app version, local contacts, etc. •...

  • Page 50: App Log In

    08 System Commissioning User Manual V1.1-2024-11-27 8.3.4 App Log In NOTICE • All the user interface (UI) screenshots or words in this document are based on SolarGo app V5.6.2. The UI may be different due to the version upgrade. The screenshots, words or data are for reference only.
  • Page 51 08 System Commissioning User Manual V1.1-2024-11-27 Connecting the inverter via WLAN NOTICE • If the SolarGo app version is upgraded to V5.6.2 or later, a Reminder will pop up every time you connect to the inverter via WLAN to prompt you to change the password. If you want to permanently close the pop-up window, tap Never Show Again.
  • Page 52 08 System Commissioning User Manual V1.1-2024-11-27 Connecting the inverter via Bluetooth...

  • Page 53: Configuring Network

    08 System Commissioning User Manual V1.1-2024-11-27 8.3.5 Configuring Network Setting Privacy and Security Type I Step 1 Tap Home > Settings > Communication Setting > Privacy & Security to set the parameters. Step 2 Set the new password for the WiFi hotspot of the smart dongle, and tap Save. Step 3 Open the WiFi settings of your phone and connect to the inverter’s WiFi signal (Solar- WiFi***) with the new password.
  • Page 54 08 System Commissioning User Manual V1.1-2024-11-27 Type II Step 1 Tap Home > Settings > Communication Setting > Privacy & Security to set the parameters. Step 2 Enable Bluetooth Stays On or WLAN Control based on actual needs. Parameters Description Disabled by default.
  • Page 55 08 System Commissioning User Manual V1.1-2024-11-27 Configuring WLAN or LAN Parameters Step 1 Tap Home > Settings > Communication Setting > WLAN/LAN to set the parameters. Step 2 Configure the WLAN or LAN parameters based on actual needs. Parameters Description Network Name Only for WLAN.
  • Page 56 08 System Commissioning User Manual V1.1-2024-11-27 Configuring 4G Parameters NOTICE • APN Settings can only be used to configure the SIM card information of 4G communication device. • Configure the APN settings through a bluetooth module or a WiFi module before installing a 4G module.
  • Page 57 08 System Commissioning User Manual V1.1-2024-11-27 Configuring RS485 Parameters NOTICE Set the communication address of the inverter. For a single inverter, the address is set based on actual needs. For multi connected inverters, the address of each inverter should be different while cannot be 247.
  • Page 58 08 System Commissioning User Manual V1.1-2024-11-27...

  • Page 59: Setting Basic Information (Owner/Installer)

    08 System Commissioning User Manual V1.1-2024-11-27 8.3.6 Setting Basic Information (Owner/Installer) Step 1 Tap Home > Settings > Basic Settings, to set the basic parameters according to the inverter location and actual application scenarios. Parameters Description • Set the safety country in compliance with local grid standards and application scenario of the inverter.

  • Page 60: Setting Remote Shutdown/Dred/Rcr

    08 System Commissioning User Manual V1.1-2024-11-27 8.3.7 Setting Remote Shutdown/DRED/RCR Enable Remote Shutdown/DRED/RCR before connecting the third party DRED, remote shutdown, or RCR device to comply with local laws and regulations. Step 1 Tap Home > Settings > Advanced Settings to set the parameters. Step 2 Enable Remote Shutdown, DRED or RCR based on actual needs.

  • Page 61: Setting Pid Repair

    08 System Commissioning User Manual V1.1-2024-11-27 8.3.8 Setting PID Repair When the inverter is connected to the grid, the potential difference between the negative pole of the PV array and the module frame decreases the energy generated by the PV modules. That is the PID effect.

  • Page 62: Setting The Power Limit Parameters (Installer)

    08 System Commissioning User Manual V1.1-2024-11-27 8.3.9 Setting the Power Limit Parameters (Installer) Enable Power Limit when power limiting is required by local grid standards and requirements. Step 1 Tap Home > Settings > Advanced Settings > Power Limit to set the parameters. Step 2 Enable Power Limit, set Export Power and External CT Ratio based on actual needs and tap √.
  • Page 63 08 System Commissioning User Manual V1.1-2024-11-27 Power Limit Setting (Only for Australia) Parameters Description Enable Soft Limit when power limiting is required by local grid Soft Limit standards and requirements. • Select power limit mode for some inverters. Supports: Split-Phase Power and Total Power.

  • Page 64: Setting The N-Pe Voltage Detection

    08 System Commissioning User Manual V1.1-2024-11-27 8.3.10 Setting the N-PE Voltage Detection Step 1 Tap Home > Settings > Advanced Settings > N-PE Voltage Detection to set the parameters. Step 2 Enable N-PE Voltage Detection, set N-PE Error Threshold based on actual needs and tap √.

  • Page 65: Set The Afci Detection Parameters (Installer)

    08 System Commissioning User Manual V1.1-2024-11-27 8.3.11 Set the AFCI Detection Parameters (Installer) Step 1 Tap Home > Settings > Advanced Settings > AFCI Test to set the parameters. Parameters Description The inverter ARC function is optional and off by default. AFCI Test Enable or disable AFCI accordingly.
  • Page 66 08 System Commissioning User Manual V1.1-2024-11-27 Parameters Description Active Power Dispatching Response Mode Realize active scheduling based on the first-order LPF curve PT-1 Behavior within the response time constant. Set the time constant within which the active power changes PT-1 Behavior Tau based on the first order LPF curve.

  • Page 67: Starting/Stopping The Grid

    08 System Commissioning User Manual V1.1-2024-11-27 8.3.12 Starting/Stopping the Grid Step 1Tap Home > Settings > Power on/off. Step 2 Tap Start to start connecting to the grid. Or tap Stop to end connection.

  • Page 68: Upgrading The Firmware

    08 System Commissioning User Manual V1.1-2024-11-27 8.3.13 Upgrading the Firmware NOTICE • Upgrade the DSP version, ARM version of the inverter , or firmware version of the smart dongle. Some devices do not support upgrading the firmware version through SolarGo app.
  • Page 69 Step 1 Tap Home > Settings > Firmware Information to check the firmware version. Step 2 Tap to enable or disable the Automatic Upgrade. For more details, refer to the SolarGo APP User Manual. Scan the QR code or visit https:// en.goodwe.com/Ftp/EN/Downloads/User%20Manual/GW_SolarGo_User%20Manual-EN.pdf get the user manual. SolarGo App User Manual...

  • Page 70: Sems Portal App Overview

    08 System Commissioning User Manual V1.1-2024-11-27 8.4 SEMS Portal App Overview SEMS Portal App is a monitoring platform. Commonly used functions are as follows: 1. Manage the organization or User information; 2. Add and monitor the power plant information; 3. Equipment maintenance. 8.4.1 Login Page of SEMS Portal App Name/Icon Description...

  • Page 71: Home Page Of Sems Portal App

    08 System Commissioning User Manual V1.1-2024-11-27 8.4.2 Home Page of SEMS Portal App Name/Icon Description Create a new power plant. The summary of the plants working information under Plant status the account. Find the plant by entering the plant name, device SN, Find the plant Email address, or map.

  • Page 72: Monitoring Power Plant

    Step 3 Tap the alarm name to check the alarm details. For more details, refer to the SEMS Portal User Manual. Scan the QR code or visit https:// en.goodwe.com/Ftp/EN/Downloads/User%20Manual/GW_SEMS%20Portal-User%20Manual-EN. to get the user manual. SEMS Portal SEMS Portal...

  • Page 73: Maintenance

    09 Maintenance User Manual V1.1-2024-11-27 9 Maintenance 9.1 Power Off the Inverter DANGER • Power off the inverter before operations and maintenance. Otherwise, the inverter may be damaged or electric shocks may occur. • Delayed discharge. Wait until the components are discharged after power off. Step 1 (Recommended) Issue a command to the inverter for halting the grid via SolarGo APP.

  • Page 74: Troubleshooting

    09 Maintenance User Manual V1.1-2024-11-27 9.4 Troubleshooting Perform troubleshooting according to the following methods. Contact the after-sales service if these methods do not work. Collect the information below before contacting the after-sales service, so tha the problems can be solved quickly. 1.
  • Page 75 09 Maintenance User Manual V1.1-2024-11-27 Fault Cause Solutions 1. Temporary abnormality caused by Night DCSPS environmental factors. Fautl 2. Internal components of the inverter are damaged. 1. The relay is abnormal or short-circuited. 2. The control circuit is Disconnect the AC output switch and DC input abnormal.
  • Page 76 09 Maintenance User Manual V1.1-2024-11-27 Fault Cause Solutions 1. Check whether the AC output voltage of the inverter meets the grid requirements. The utility grid voltage is 2. Make sure that the phase sequence of the Vac Failure out of the allowed range. AC cables are connected correctly, and the neutral wire and PE cable are connected properly and firmly.
  • Page 77 09 Maintenance User Manual V1.1-2024-11-27 Fault Cause Solutions The HCT sensor is AC HCT Fail abnormal. 1. The relay is abnormal Disconnect the AC output switch and DC input or short-circuited. switch, then connect them 5 minutes later. Relay Fault 2.
  • Page 78 09 Maintenance User Manual V1.1-2024-11-27 Fault Cause Solutions 1. If the problem occurs occasionally, the reason might be abnormal sun light. The Sun light is weak or PV Voltage inverter will recover automatically without changing abnormally. manual intervention. 2. If the problem occurs frequently, contact the dealer or the after-sales service.

  • Page 79: Routine Maintenance

    09 Maintenance User Manual V1.1-2024-11-27 9.5 Routine Maintenance DANGER Power off the inverter before operations and maintenance. Otherwise, the inverter may be damaged or electric shocks may occur. Maintaining Item Maintaining Method Maintaining Period Check the heat sink, air intake, and air System Clean Once 6-12 months outlet for foreign matter or dust.
  • Page 80 Follow below steps to maintain the funs of GT inverters: GT Series inverter is equipped with four fans on its left side. The fan should be cleaned yearly with a vacuum cleaner. For more thorough cleaning, completely remove the fans.

  • Page 81: Technical Parameters

    10 Technical Parameters User Manual V1.1-2024-11-27 10 Technical Parameters Technical Data GW75K-GT-LV-G10 Input Max. Input Power (kW) Max. Input Voltage (V) MPPT Operating Voltage Range (V) 180~800 MPPT Voltage Range at Nominal Power (V) 250~650 Start-up Voltage (V) Nominal Input Voltage (V) Max.
  • Page 82 10 Technical Parameters User Manual V1.1-2024-11-27 Technical Data GW75K-GT-LV-G10 Max. Total Harmonic Distortion <3% Maximum Output Overcurrent Protection (A) Efficiency Max. Efficiency 98.80% European Efficiency 98.30% Protection PV String Current Monitoring Integrated PV Insulation Resistance Detection Integrated Residual Current Monitoring Integrated PV Reverse Polarity Protection Integrated...
  • Page 83 10 Technical Parameters User Manual V1.1-2024-11-27 Technical Data GW75K-GT-LV-G10 Communication RS485, WiFi+LAN Communication Protocols Modbus-RTU (SunSpec Compliant) Weight (kg) Dimension (W×H×D mm) 930 x 650 x 300 Noise Emission (dB) <65 Topology Non-isolated Self-consumption at Night (W) <1 Ingress Protection Rating IP66 Anti-corrosion Class C4,C5 (Optional)
  • Page 84 10 Technical Parameters User Manual V1.1-2024-11-27 Technical Data GW100K GW110K GW125K Input(DC) Max.Input Power (kW) 187.5 Max.Input Voltage(V) 1100 1100 1100 MPPT Operating Voltage Range (V) 180~1000 MPPT Voltage Range at Nominal Power (V) 500~850 Start-up Voltage (V) Nominal Input Voltage (V) Max.
  • Page 85 10 Technical Parameters User Manual V1.1-2024-11-27 Technical Data GW100K GW110K GW125K Max. Total Harmonic Distortion <3% Maximum Output Overcurrent Protection Efficiency Max. Efficiency 98.8% 98.8% 99.0% European Efficiency 98.4% 98.4% 98.5% CEC Efficiency 98.3% 98.3% 98.4% Protection PV String Current Monitoring Integrated PV Insulation Resistance Detection Integrated...
  • Page 86 10 Technical Parameters User Manual V1.1-2024-11-27 Technical Data GW100K-GT GW110K-GT GW125K-GT General Data Operating Temperature Range (℃) -30 ~ +60 Storage Temperature (℃) -40 ~ +70 Relative Humidity 0 ~ 100% Max. Operating Altitude (m) 4000 Cooling Method Smart Fan Cooling User Interface LED, LCD (Optional ) ,WLAN+APP Communication...
  • Page 87 10 Technical Parameters User Manual V1.1-2024-11-27 Overvoltage levels: Overvoltage I: Devices connected to the circuit which can limit instantaneous overvoltage to a relatively low level. Overvoltage II: Energy-consuming devices powered by fixed power distribution equipment, including appliances, portable tools, and other household and similar equipment. Overvoltage III is also applicable if there are special requirements for the reliability and applicability of the equipment.
  • Page 88 GoodWe Website GoodWe Technologies Co., Ltd. No. 90 Zijin Rd., New District, Suzhou, 215011, China www.goodwe.com Local Contacts service@goodwe.com...

This manual is also suitable for:

Gw75k-gt-lv-g10Gw100k-gtGw110k-gtGw125k-gt

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