GWL SUN Series Installation And Operation Manual
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GWL SUN Series Installation And Operation Manual

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G2
SUN Series Grid Tie Power Inverter
(Generation 2)
With Limit Sensor and WIFI Plug connectors
Installation and Operation Manual
SUN-2000G2
SUN-1000G2
1

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April 27, 2025

Does inverter work mode had something to do, if inverter not giving power?

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Summary of Contents for GWL SUN Series

  • Page 1 SUN Series Grid Tie Power Inverter (Generation 2) With Limit Sensor and WIFI Plug connectors Installation and Operation Manual SUN-2000G2 SUN-1000G2...

  • Page 2: Table Of Contents

    Installing Sunshine Grid Tie Power System to Three Phases Utility Grid----------------------------------18 Layout of Sunshine Grid Tie Power Inverter --------------------------------------------------------------------19 Inverter Display Instruction ---------------------------------------------------------------------------------------------21 Technical Date of SUN Series Grid Tie Power Inverter---------------------------------------------------------24 Outline Drawing of SUN Series Grid Tie Power Inverter-------------------------------------------------------25 TroubleShooting----------------------------------------------------------------------------------------------------------26...

  • Page 3: Sun Series Grid Tie Inverter Models

    G2 Sun Series Grid Tie Inverter Models Sun series grid tie inverters include several models, refer to table 1. Table 1,G2 Sun Series Grid Tie Inverter Models Rated Power Night DC Input Model AC Output Voltage AC Output Frequency Max. Effeciency (Max./Continuous)

  • Page 4: Important Safety Information

    Important Safety Information Read this First ! This manual contains important instructions to follow during installation and maintenance of Sunshine Grid Tie Inverter. To reduce the risk of electrical shock, and to ensure the safe installation and operation of the Sunshine Grid Tie Inverter, the following safety symbols appear throughout this document to indicate dangerous conditions and important safety instructions.

  • Page 5: Instruction Of Sunshine Grid Tie Inverter

    Introduction of Sunshine Grid Tie Inverter Sunshine Grid Tie Power Inverter is the world s most technologically advanced inverter for ’ use in utility-interactive applications. This manual details the safe installation and opera- tion of the Sunshine Grid Tie Inverter. This integrated system maximizes energy harvest, increases system reliability, and simplifies design, installation and management.

  • Page 6: Advantage Of Sunshine Grid Tie System

    Multiple inverters can be connected in parallel to creat bigger system.Plug and play installation. Advantage of The Sunshine Grid Tie Power System There are many advantages of SGPV compare with the traditional grid tie power system. 1. Low cost and easy installation - SGPV can make full use of all types of buildings’ surface that face to the sun in the city as well as fast and easy installation of solar modules and grid tie inverter.

  • Page 7: Sunshine Grid Tie Inverter Installation

    Sunshine Grid Tie Inverter Installation Follow the instructions in this section to install Sunshine Grid Tie Inverters. WARNING: Before installing the Sunshine Grid Tie Inverter, read all instructions and cautionary markings in the user manual, on the Sunshine Grid Tie Inverter, and on the photovoltaic array. WARNING: Perform all electrical installations in accordance with all local electrical codes and the National Electrical Code (NEC) WARNING: Connect the Sunshine Grid Tie Inverter to the electrical utility...

  • Page 8: Installation Procedure

    Installation Procedure Installing Sunshine Grid Tie Power System involves several key steps: 1. Considering the total capacity of the grid tie power system that you need. 2. Choosing applicable solar panels for Sunshine Grid Tie Inverter. 3. Selecting accessory for installation of the Grid Tie Power System . 4.

  • Page 9: Step 2 Choosing Applicable Solar Panels For Sunshine Grid Tie Inverter

    Step2. Choosing applicable solar panels for Sunshine Grid Tie Inverter. Descripiton of Solar Panel Solar panel is an array of solar cells, it is an electrical device that converts the energy of light directly into electricity by the photovoltaic effect. when exposed to light, it can generate and support an electric current without being attached to any external voltage source.

  • Page 10: Step 3 Selecting Accessory For Grid Tie Power System Installation

    Fig 2. I-V Curves Fig 3. Temperature Dependence of Isc, Voc, Pmax The I-V Curves shown in the Fig. 2 is a solar panel’s I-V curves that the power is 230W. You can get the information from this I-V curves that different irradiance under sunshine will get different power from same solar panel, and also different power will be converted under same irradiance but the output of DC voltage is different, the solar panel just can get maximum power at one point under a certain irradiance, this point is called maximum...

  • Page 11: Step 4 Selecting Correct Model Of Sunshine Grid Tie Inverter

    Selecting DC cables Before you connect the solar panels to inverter, suitable specification of cables should be selected. The selection of specifications of the cables is according to the total power of the solar panels and the connecting method of solar panels. You should calculate the maximum current that will transit through the cables, we mark it as Imax.
  • Page 12 Table 2: American Wire Gauge (AWG) Cables / Conductor Sizes and Properties Diameter Diameter Area Resistance Resistance Max Current Max Frequency [mm] [Amperes] for 100% skin depth [inches] [mm2] [Ohms/ km] [Ohms /1000 ft] 0 (1/0) 0.3249 8.25246 53.5 0.0983 0.322424 250 Hz 0.2893...

  • Page 13: Step5. Installing Solar Panels To Suitable Place

    Step5. Installing Solar Panels to suitable place. Installing the solar panels of the SGPV to suitable location that sunshine can irradiate on them, there must have no shadow, the installation direction of the solar panels should be according to the geography position that the system will be installed, different position should has different installation direction, the principle is to get maximum irradation in all the year round.
  • Page 14 Example of Installation of 1KW grid tie power system In order to explain the installing operation, we assume that there is a house that the usual electricity consumption is about 5KWH per day, and the real irradiation time is about 5 hours.
  • Page 15 4, Selecting correct model of Sunshine Grid Power Inverter. Because maybe there will be several methods of connecting solar panels to Sunshine Grid Tie Inverter, different connecting method maybe should use different model inverter. In this case, there are two connecting methods. With method 1, because all panels are connected in parallel, so we can know that the TVoc(total Voc of the solar panels) will be same as Voc of one panel, and the TVmp also is same as Vmp of one panel.

  • Page 16: Installing Larger Capacity Of Grid Tie Power System

    Comparing the connected method in Fig.4 and Fig5, we can see that method 2 is the good choice, because with method 1, the DC cables is more thick, so it is more expensive, and three pairs of connectors for parallel connecting plus three pairs of MC4 connectors should be used.
  • Page 17 You can install any capacity of grid tie power system by stack small grid tie power systems. For example, if you want to install 12KW grid tie power system, there are many choices, you can stack six 2KW grid tie power systems, or twelve 1KW gird tie systems, or stack twenty-four 500W grid tie power systems, or stack fourty-eight 250W grid tie power system, even you can mix different capacity grid tie power systems to gain large capacity system.

  • Page 18: Installing Sunshine Grid Tie Power System To Three Phases Utility Grid

    Installing Sunshine Grid Tie Power System to Three Phases Utility Grid. When the Capacity of Gird Tie Power System is larger, intall all the power system to one phase of the utility grid is not reasonable, maybe this will cause unbanlance of the three phase of the utility grid.

  • Page 19: Layout Of Sunshine Grid Tie Power Inverter

    For example, installing a 3KW grid tie power system to three phase utility grid. The diagram is shown in Fig. 8, we seperate 3KW power sytem to three power system units, every unit has 1KW power. Connecting every system unit to different phase, this can balance all grid tie power to three phases of the utility grid.
  • Page 20 SUN-2000G2-X layout, please see the Fig. 10 Fig 10. SUN-2000G2-X layout ①. DC Input Positive Terminal. This terminal will connect to the positive wire of solar cables that connected with the positive pole of the solar panels. ②. DC Input Negative Terminal. This terminal will connect to the negative wire of solar cables that connected with the negative pole of the solar panels.

  • Page 21: Inverter Display Instruction

    Inverter Display Instruction The Inverter display can show many information,The main interface of the display and the icons explainations are show above. Set Menu: Choose the set menu icon on the main screen interface,click the confirm button to enter into the interface show below,In this interface,can set the LCD backlight always on or auto turn off backlight after 3 minutes no action.
  • Page 22 Grid Waveform: This interface will show the real time grid waveform.The grid voltage and frequency also will show in this interface.User can Energy Menu: The energy interface will show the power generation curve everyday. Today KWH and Total KWH are also show in this page. Power View: In this interface,the display shows real time power,PV input voltage, inside temperature,date and time.
  • Page 23 -20℃~ 45℃ -40℃~ 65℃ Storage Tmeperature Range There are some common specifications of SUN Series Grid Tie Power Inverter shown in Table 3. Other electrical specifications of every model are listed in Table 1. Weight and Dimension of SUN series Grid Tie Power Inverter...

  • Page 24: Technical Date Of Sun Series Grid Tie Power Inverter

    Outline Drawing of SUN Series Grid Tie Power Inverter Fig. 11 SUN-1000G2-X Outline Drawing Fig. 12 SUN-2000G2-X Outline Drawing...

  • Page 25: Troubleshooting

    Troubleshooting After all installation step described throughout this manual, Qualified personnel can use the following troubleshooting steps if the Sunshine Grid Tie Power System does not operate correctly. WARNING: Do not attempt to repair the Sunshine Grid Tie Inverter, it contains no user-serviceable parts.

  • Page 26: Ac Output Current Waveform And Pf Test Of 2000W Model

    AC Output Current Waveform and PF Test Of 2000W Model Tested 2000W model at nearly full load,Output current waveform shows good pure sine wave in oscilloscope,PF value also shows in good result,99.8% PF value.

This manual is also suitable for:

Sun-1000g2-mSun-2000g2-hSun-1000g2-h

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