LIVOLTEK GT3-17K-D User Manual Download Page 2

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Contents

Forward

Application Model
Intended Audience
Symbol Conventions

1 Safety Precautions

1 1 Personnel Safety

1 2 The PV Inverter Protection

1 3 Installation Safety

1 4 Electrical Connections

1 5 Operating and Commissioning

1 6 Maintenance

1 7 Additional Information

2 Overview of the Inverter

2 1 Functional Models

2 2 Network Application

2 3 Outline and Dimensions

2 4 Working Modes

2 1 1 Function

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2 1 2 Model Description

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2 3 1 Dimensions

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2 3 2 Outline

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2 2 1 Grid tied PV Power Systems

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4 1 Checking the Outer Packing

4 2 Moving the Inverter

4 3 Identify the PV Inverter

4 4 Installation Requirements

4 3 1 Nameplate

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4 3 2 Compliance and Safety Symbols

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3 Storage

4 Installation

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4 4 1 Determining the Installation Position

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Summary of Contents for GT3-17K-D

Page 1: ...Ver 00 GT3 17K 30K...

Page 2: ...al Models 2 2 Network Application 2 3 Outline and Dimensions 2 4 Working Modes 2 1 1 Function 2 1 2 Model Description 2 3 1 Dimensions 2 3 2 Outline 2 2 1 Grid tied PV Power Systems 4 1 Checking the O...

Page 3: ...n 5 2 2 Procedure of Connecting AC Cables 5 3 2 Procedure of connecting the PV Strings 6 System Operation 6 1 Powering ON the Inverter 6 2 Powering OFF the Inverter 7 User Interface 8 Maintenance 9 Di...

Page 4: ...nstallation electrical connections operation commissioning maintenance and troubleshooting Please read through the manual carefully before installing and using the inverter and keep the manual well fo...

Page 5: ...tuation which if not correctly followed could result in equipment failure to run or property damage Calls attention to important information best practices and tips supplement additional safety instru...

Page 6: ...ate on the inverter s enclosure because it contains important product information c Do not remove the anti dismantle label on the inverter s enclosure because it is the basis for product warranty 1 2...

Page 7: ...b Follow the procedures of commissioning described in the user manual when commissioning the PV inverter c Do not touch any other parts surface except the DC switch when the PV inverter is operating...

Page 8: ...unauthorized access to the maintenance site c Follow the procedures of maintenance stipulated in the manual strictly d Check the relevant safety and performance of the inverter rectify any faults that...

Page 9: ...as an example Figure 2 1 Model number descriptions 2 1 Functional Models 2 2 1 Grid tied PV Power Systems The series apply to grid tied PV power systems for industrial commercial rooftops fishing farm...

Page 10: ...ure 2 3 Power grids supported by these series inverters Inverter TN S TN C TN C S TT Inverter Inverter Inverter Figures 2 4 The dimensions of the PV inverter unit mm 2 3 1 Dimensions Figures 2 4 shows...

Page 11: ...mmunications interface 4 R 485 S 5 AC output connectors 6 Fan 25K 28K 30K 7 Vent valve 8 External Protection Ground interface 2 3 2 Outline Figures 2 5 to 2 7 show the outline of the inverters as foll...

Page 12: ...rt requirements but cannot meet its minimum power requirements When the PV inverter is grid tied and generates electricity it tracks the maximum power point to maximize the PV String output converts D...

Page 13: ...he relative humidity of 0 to 100 no condensing The PV inverter should be stored in a clean and dry place and be protected from dust and water vapor corrosion A maximum of four layers of inverters can...

Page 14: ...g materials or in an area that stores flammable or explosive materials Do not install the inverter in a place where personnel are likely to come into contact with its enclosure and heat sinks to avoid...

Page 15: ...ally put foam or paper under to protect its enclosure 4 3 1 Nameplate After moving the PV inverter from packing box identify it by reading its nameplate labeled on the side of the inverter The namepla...

Page 16: ...osition one kinds of physical installation are described below in detail Support mounting Basic Requirements a The inverter is protected to IP65 and can be installed indoors or outdoors b The installa...

Page 17: ...ents a It is recommended that the inverter be installed at eye level to facilitate operation and maintenance b Reserve enough clearance around the inverter to ensure sufficient space for installation...

Page 18: ...in triangle mode as shown in Figure 4 6 or in stacked mode as shown in Figure 4 7 if no sufficient space is available The installation modes ensure sufficient space for installation and heat dissipati...

Page 19: ...Installation in triangle mode unit mm Figure 4 7 Installation in stacked mode unit mm The clearance between multiple inverters must be increased to ensure proper heat dissipation when they are instal...

Page 20: ...ode The correct installation mode upright back tilt Figure 4 9 The wrong installation modes The wrong installation will lead to failure of the inverter operation NOTICE The wrong installation mode Hor...

Page 21: ...on the rear panel and ensure that they are secured as shown in Figure 4 12 Figure 4 11 Mounting the inverter Figure 4 12 Securing the inverter Therequiredtorqueis3N m Ensure that the supporting points...

Page 22: ...er for multiple inverters otherwise circulating current generated by the inverters will lead to operation failure Select Isolation SET on the mobile APP and set in Input Grounded With TF 5 1 Connectin...

Page 23: ...ire Stripper the length is a little bit longer than that of OT terminal s crimping end by 2mm 3mm as shown in Figure 5 1 5 1 2 Wiring Procedures Figure 5 1 Stripped length unit mm Step 2 Insert the ex...

Page 24: ...nge Cross sectional Area 2 Cable Outer Diameter mm mm b OT terminals The inverter requires M5 OT terminals and a cable with the maximum cross sectional area of 25 mm 2 An independent three phase circu...

Page 25: ...the crimp area of the OT terminal and crimp them using hydraulic pliers Wrap the wire crimp area with heat shrink tubing or PVC insulation tape as shown in Figure 5 5 120 recommend L2 L1 2mm 3mm L1 sp...

Page 26: ...terminal block use a screw driver to tighten screws to a torque of 3N m as shown in Figure 5 6 Step 4 Lock the AC OUTPUT terminal shell back to the original position Stretch all the lines on the AC en...

Page 27: ...a module in a string Only after the inverter enters in shutdown mode it is allowable for preceding DC input power cables maintenance Grounding the PV Strings needs below prerequisites otherwise a fire...

Page 28: ...for 17 22K b DC input cables of PV Strings Table 5 3 lists the recommended outdoor copper core DC input cable specifications Table 5 3 Recommended DC input cable recommended specifications Cable type...

Page 29: ...and negative metal connectors are packed with positive and negative connectors respectively when shipped out After unpacking keep the positive and negative ones separate to avoid confusion 5 3 2 Proc...

Page 30: ...gative power cables into the corresponding positive and negative connectors until a click sound is heard as shown in Figure 5 12 Figure 5 12 Connecting positive and negative connectors Step 4 Tighten...

Page 31: ...ll connectors are in position by checking for resistance when a slight pull is applied 5 4 Connecting Communication Cables 5 4 1 Communication Mode Description You can use the following communication...

Page 32: ...the following items after the inverter is installed according to Table 5 5 1 No other objects put on the PV inverter 2 All screws especially the screws used for electrical connections are tightened 3...

Page 33: ...the inverter has entered grid connecting it means the inverter is operating well Any query during operating the PV inverter call your dealer 6 2 Powering OFF the Inverter Step 1 Switch off the circui...

Page 34: ...tions data transmission off blink Warning Indicator Refer LED status in warning table No warning off on blink Grid Indicator on blink Status Voltage of PV strings meet the conditions for feed in opera...

Page 35: ...l Warning code PV indicator Grid indicator COM indicator Warning indicator Normal status Starting up WLAN WI FI RS485 communication PV normal Grid over voltage Grid under voltage A0 A1 Grid absent Gri...

Page 36: ...ternal Communications Fault Software version incompatibility EEPROM fault Sampling inconsistency Invert circuit abnormal Boost circuit abnormal Note means light ON light off blink keep original status...

Page 37: ...ockage Clean periodically the heat sink WARNING 8 1 Routine Maintenance Check Item Check Content Maintenance Interval Maintain content PV inverter running status Check that the inverter is not damaged...

Page 38: ...APP 3 If the alarm persists for a long time check whether the AC circuit breaker AC terminals is disconnected or not or if the grid has a power outage Check the number of PV modules and adjust it if...

Page 39: ...ging or deteriorated PV Strings Reverse The cables of PV strings are connected reversely during the inverter installation Check whether the cables of PV strings are correctly connected If they are con...

Page 40: ...tripping 1 Wait till power is restored 2 Turn DC switch to ON and if DC switch trips a lot contact your dealer If you cannot clear the preceding alarm according the measures recommended contact your...

Page 41: ...ckage If any abnormal with a FAN please replace it The inverter is equipped with in built PV FUSE if any warning display that the FUSE is melt disconnect AC breaker and switch the DC switcher to OFF t...

Page 42: ...inverter and its packing case are made from environment friendly materials If the inverter service life has expired do NOT discard it with household garbage dispose the inverter in accordance with loc...

Page 43: ...0 000W 22 000W Max AC Apparent Power 18 700VA 22 000VA 24 200VA Max AC Active Power PF 1 18 700W 22 000W 24 200W Max AC Output Current 3 28 3A 3 33 5A 3 35A Rated AC Voltage 380V 400V 3W N PE AC Volta...

Page 44: ...Natural cooling Operating Temperature Range 25 60 up to 45 C without derating Relative Humidity Range 0 100 Max Operating Altitude 4000m 2000m derating Noise 30dB Measured at 1m Dimensions W H D 555 4...

Page 45: ...00VA 33 000VA Max AC Active Power PF 1 27 500W 30 800W 33 000W Max AC Output Current 3 40A 3 45A 3 48A Rated AC Voltage 380V 400V 3W N PE AC Voltage Range 277V 520V adjustable Rated Grid Frequency 50H...

Page 46: ...ns are subject to change without prior notice The listed specifications are for your reference only Notes 43 Cooling Fan cooling Operating Temperature Range 25 60 up to 45 C without derating Relative...

Page 47: ......

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