LIVOLTEK GT3-20KL-T User Manual
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LIVOLTEK GT3-20KL-T User Manual

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USER MANUAL
GT3-36~60kW
Copy Declaration
The copyright of this munual belongs to Hangzhou Livoltek Power Co., td. Any corpo -
1418-35 Moganshan Road, Hangzhou, 310011, China
ration or individual should not lagiarize, partially or fully copy, and no reproduction or
distribution of it in any from or by any means. All rights reserved.
info@livoltek.com
www.livoltek.com
Ver.00

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Summary of Contents for LIVOLTEK GT3-20KL-T

  • Page 1 USER MANUAL GT3-36~60kW Copy Declaration The copyright of this munual belongs to Hangzhou Livoltek Power Co., td. Any corpo - 1418-35 Moganshan Road, Hangzhou, 310011, China ration or individual should not lagiarize, partially or fully copy, and no reproduction or distribution of it in any from or by any means.

  • Page 2: Table Of Contents

    Contents Contents 1. About This Manual ..... . 1.1 Scope of Validity ......1.2 Target Group .

  • Page 3: About This Manual

    1.About This Manual 1.1 Scope of Validity This manual describes the installation, commissioning, operation and maintenance of the following on-grid PV inverters produced by Livoltek METALES: Three-Phase GT3-20KL-T GT3-25KL-T GT3-30KL-Q Please keep this manual available all the time in case of any emergency.
  • Page 4 GT3-25KL-T DCA+ DCA+ DCA- PV Array Cloud server DCA- Circuit Breaker Surge Protective Device DCB+ DCB+ Circuit Breaker DCB- PV Array DCB- Surge Protective Circuit Breaker Device AC Grid DCC+ Surge Protective Device DCC+ DCC+ PV Array DCC- DCC- PV Inverter DCC- Circuit Breaker Surge Protective...

  • Page 5: Safety & Symbols

    Circuit Breaker Recommendation Type Max AC Current (A) Rated current of AC breaker (A) GT3-20KL-T GT3-25KL-T GT3-30KL-Q Surge Protector Recommendation • AC side, nominal discharge current 20KA, second grade lightning protection, protection voltage 2.5KV. • DC side, nominal discharge current 20KA, second grade lightning protection, protection voltage 3.2KV.

  • Page 6: Explanations Of Symbols

    6. Please ensure that the used device and any relevant accessories are disposed of in accordance with applicable regulations. 7. Livoltek inverter should be placed upwards and handled with care in delivery. Pay attention to waterproof. Do not expose the inverter directly to water, rain, snow or spray.

  • Page 7: Installation

    3.Installation 3.1 Pre-installation 3.1.1 Unpacking & Package List Unpacking On receiving the inverter, please check to make sure the packing and all components are not missing or damaged. Please contact your dealer directly for supports if there is any damage or missing components. Package List Open the package, please check the packing list shown as below.

  • Page 8: Product Overview

    3.1.2 Product Overview 236mm 710mm GT3-20KL-T 236mm 710mm GT3-25KL-T 236mm 710mm GT3-30KL-Q...
  • Page 9 Inverter Terminals GT3-20KL-T GT3-25KL-T...
  • Page 10 GT3-30KL-Q Items DC Switch DC Connectors ( + ) For PV Strings DC Connectors ( − ) For PV Strings AC Connector Monitor Module Port Zero-lnjection Port (Optional)

  • Page 11: Mounting Location

    3.1.3 Mounting Location The inverters are designed for indoor and outdoor installation (IP65), to increase the safety, performance and lifespan of the inverter, please select the mounting location carefully based on the following rules: • The inverter should be installed on a solid surface, far from flammable or corrosion materials, where is suitable for inverter’s weight and dimensions.

  • Page 12: Mounting

    Leave the enough space around inverter, easy for accessing to the inverter, connection points and maintenance. 300mm 100mm 100mm 500mm 3.2 Mounting Step 1 585mm 17mm 690mm...
  • Page 13 Step 2 Step 3 Security screw...

  • Page 14: Electrical Connection

    4. Electrical Connection 4.1 PV Connection 20kW three phase inverters have 3 MPPT channels, each channel includes two PV string input; 25kW three phase inverters have 3 MPPT channels, channel A and B includes 2 PV string input, and channel C includes 3 PV string inputs； 30kW three phase inverters have 4 MPPT channels, each channel includes two PV string inputs;...
  • Page 15 Step 2 Note: Please use PV connector crimper to pinch the point of the arrow. Step 3 STOP ! Note: You’ll hear click sound when the connector assembly is correct.
  • Page 16 Note: PV string suggestion: Correct Installation: Channel A, B, C and D connected with PV strings separately PV + PV - PV Array 1 PV + PV - PV Array 2 PV + PV - PV Array 3 PV Inverter PV + PV - PV Array 4...

  • Page 17: Grid Connection

    4.2 Grid Connection The external AC switch should be installed between inverter and grid to isolate from grid. Please make sure below requirements are followed before connecting AC cable to the inverter. • The AC (grid) voltage should not exceed the reasonable range of the inverters. •...
  • Page 18 Step 2 N = Neutral line L1, L2, L3 = Live line PE = Earth cable Unscrew the row of screws, insert the wire harness into the N, L1, L2, L3 caps one by one, and tighten the screws. Note: The user must connect a protective earth (PE) terminal to prevent electric shock.

  • Page 19: Earth Connection

    4.4 Communication Connection The monitoring module could transmit the data to the cloud server, and display the data on the PC, tablet and smart-phone. Install the WIFI / Ethernet / GPRS / RS485 Communication WIFI / Ethernet / GPRS / RS485 communication is applicable to the inverter. Please refer to "Communication Configuration Instruction"...

  • Page 20: Zero-Injection Smart Meter (Optional)

    4.5 Zero-injection Smart Meter (Optional) Smart meter is an intelligent control equipment which is used for on-grid inverters. Its main function is to measure the forward and reverse power on the grid-connected side, and transmit data to the inverter through RS485 communication to ensure that the power of the inverter is less than or equal to the user's home load, and no current flows into the grid.
  • Page 21 Step 2 Note: When multiple inverters are connected in parallel, the total output power could not exceed the reasonable range of the smart meter. Cloud Server Weather Sta�on Distribu�on Cabinet Router PV Array L1‘ PV Inverter PV Inverter L2’ L3’ PV Array Energy Meter Grid...

  • Page 22: Operation

    5.Operation 5.1 Control Panel ○ ○ ○ ○ ○ ○ ○ ○ N o. Items N o. Items LCD Display ENT Touch Button UP Touch Button POWER LED Indicator DOWN Touch Button GRID LED Indicator ESC Touch Button FAULT LED Indicator Sign Power Color...

  • Page 23: Menu Structure

    5.2 Menu Structure Third Level Menu Vpv1：xxV Ipv1：xxA Second Level Menu Ppv1：xxW PV Info Vpv2：xxV Ipv2：xxA Ppv2：xxW PInv：xxW VInvR：xxV VInvS：xxV VInvT：xxV First Level Menu IInvR：xxA Inv Infor IInvS：xxA Protection Param IInvT：xxA Freq：xxHz PF：xxx PGrid：xxkW EOutDay：xxWh EtoGDay：xxWh EOutAll：xxkWh Grid Info EtoGAll：xxkWh T .mod：xx℃...
  • Page 24 Third Level Menu Second Level Menu Independent PV Mode Parallel No Meter Meter Param Meter DRMS RippleCtrl First Level Menu P Set P Mode Running Param * * * * P% Set P(V) Set P(F) Set QMode Select Q Set Q Mode PF Set Q(V) Set...

  • Page 25: Setting

    Explanation of LCD Display Content Nouns Explanation Sys Info Check the inverter's real-time operating information Error Record Check the inverter's fault records with date and time System Param Set the inverter's safty code / lanuage / time & date, restore to factory settings Version Check the inverter's SN and firmware version Protection Param...

  • Page 26: Frequency Range

    UP/DOWN UP/DOWN UP/DOWN Set voltage upper limit Choose voltage upper limit Choose PassWord: xxxx EarthChk： xxx EarthChk： xxx X X X X V.max：xxx V V.max：xxx V UP/DOWN UP/DOWN UP/DOWN Choose voltage upper limit T Set voltage upper limit protection time Choose voltage lower limit V.max：xxx V V.max：xxx V...

  • Page 27: Commissioning

    6. Commissioning Before starting up commissioning at site, please make sure below procedures and requirements are fully meet. • Mounting location is meet the requirements. • All of the electrical wiring is firmly connected, including PV wiring, Grid wiring and Earth wiring. •...

  • Page 28: Maintenance&Trouble Shooting

    8. Maintenance&Trouble Shooting 8.1 Maintenance Periodically maintenance are necessary, please follow steps as below. PV connection: twice a year AC connection : twice a year Earth connection: twice a year Heat sink: clean with dry towel once a year. 8.2 Trouble Shooting Fault messages will be displayed when fault occurs, please according to trouble- shooting table find related solutions.
  • Page 29 Trouble-Shooting List Type of Fault Code Name Description Recommend Solution The actual PV connection type (independent, • Set PV connection type according to PvConnectFault parallel) different from the actual PV connection type. setup. • Check whether the PV modules and its wiring are immersed in water and ISO check among PV whether the insulation is damaged, and...
  • Page 30 Type of Fault Code Name Description Recommend Solution • Power off, then restart. Boost1SelfCheckFault PV boost circuit abnormal • If fault still occurs continuously and when self checking frequently, please ask help for local Boost2SelfCheckFault distributors. BusHwOverVoltFault BusHwOverHalfVoltFault Bus voltage over DC Fault BusSwOverVoltFault •...
  • Page 31 Type of Fault Code Name Description Recommend Solution PVs1ReverseFault PVs2CurAdChanFault RInvCurAdChanFault SInvCurAdChanFault TInvCurAdChanFault RInvDciAdChanFault • Power off, then restart. current sampling • If fault still occurs continuously and hardware abnormal frequently, please ask help for local SInvDciAdChanFault distributors. TInvDciAdChanFault LeakCurAdChanFault VoltRef(1.65V)AdChanFault UpsRDcvAdChanFault UpsSDcvAdChanFault...
  • Page 32 Type of Fault Code Name Description Recommend Solution • Power off, then restart. • If fault still occurs continuously and ModelConflictFault Version conflict with inverter frequently, please contact local System Fault distributors for software upgrade, version setting details. InterFan1Warning • Check if there is objects which blocking the fan rotation and remove it.
  • Page 33 Type of Fault Code Name Description Recommend Solution • Check whether the ground wire of the inverter is properly connected and whether the ground impedance is over, Poor grounding and make corrections. grounding wire has been GndAbnormalWarning • Power off, then restart. detected.

  • Page 34: Specifications

    9. Specifications PV Input Data GT3-20KL-T GT3-25KL-T GT3-30KL-Q Max. DC Power ( W ) 30000 37500 45000 Max. DC Voltage ( V ) MPPT Voltage Range ( V ) 200 -700 MPPT Full Power Voltage Range ( V ) 320 - 600...

This manual is also suitable for:

Gt3-25kl-tGt3-30kl-q

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