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Summary of Contents for Sunways STH 15-33KTL-HT
- Page 1 H y b r i d I n v e r t e r STH 15-33KTL-HT S U N W A Y S T E C H N O L O G I E S C O . , L T D .
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Page 2: Table Of Contents
1 Preface ………………………………………………………… 1.1 Overview …………………………………………………………… 5 1.2 Target Groups ……………………………………………………… 5 2 Safety Instructions …………………………………………… 2.1 Safety Notes ………………………………………………………… 6 2.2 Statement …………………………………………………………… 6 2.3 Important Safety Matters ……………………………………… 7 2.4 Symbols Explanation …………………………………………… 8 3 Product Description …………………………………………… 3.1 Basic Features ………………………………………………………... -
Page 3: Preface
If there are any problems in the installation process, please call Sunways service Unless otherwise agreed in the contract, the Company shall not make any express or implied telephone at +86 400-9922-958 or email Sunways at service@sunways-tech.com for consultation. -
Page 4: Safety Instructions
Danger ※ 2.2 Statement Sunways Technologies Co.,Ltd. has the right not to undertake quality assurance in any of the Potentially dangerous situation, if not avoided, may result in death or serious personal injury. following circumstances: Warning 1. -
Page 5: Symbols Explanation
Symbol Description Symbol Description The safety warning information about equipment or environment, to prevent equipment damage, Grounding symbol, the inverter casing needs to be properly grounded. data loss, equipment performance degradation or other unpredictable results. Attention 2.4.2 Symbol on the Inverter nameplate Symbol highlights important information, best practices and tips, etc. -
Page 6: Product Description
3.1.3 Applicable grid type The applicable grid types of the Sunways STH 15~33kW series are TN-S, TN-C, TN-C-S and TT. When applied to the TT grid, the voltage of N to PE should be less than 30V. See Figure 3-1 for details: Handle with care. - Page 7 Battery Grid Sunways STH Hybrid inverter has the following basic operation modes and you can configure the operation mode as per your preference in the App. In this working mode, set the Pmax from grid in the App can realize the“Peakload Shifting”.
- Page 8 App) to charge the battery in the predetermined period. 3.1.6 Off-grid output ability (UPS ability) Inverter Sunways STH hybrid inverter overloading ability in off-grid work mode describes as following: Battery Grid Off-grid Overloading Ability Illustration...
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Page 9: Physical Layout
3.1.7 Storage conditions 3.2.3 Inverter bottom view Battery Input Terminal Back-up Output Terminal 1) Inverter must be stored in its original packaging. DC Input Terminal Com1 Port 2) The storage temperature and humidity should be in the range of -30℃ and+ 60℃ , and less than 90%, respectively. -
Page 10: Display Interface
3.2.4 Inverter back view Item Indicator Status Description Back Rail Back Rail Inverter no AC output. Quick flashing Inverter entered self-test status. Power Indicator Slow flashing Inverter entered waiting status. Always on Inverter works normal. Disconnected with grid. Back Rail Back Rail Grid Slow flashing... - Page 11 AC Terminal Inspection Report Sunways Meter B (Optional) Inspection Report Sunways Meter A with 3 CTs ×1 Sunways Meter B with 3 CTs ×1 Cord End Terminal × 8 Cord End Terminal × 8 AC Terminal × 2 Inspection Report × 1...
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Page 12: Installation
Do not put flammable and explosive articles around the inverter. Warning The Sunways STH 15-33kW series inverters designed with IP65 protection enclosure for indoor and outdoor installations. When selecting an inverter installation location, the following factors should 4.1.2 Installation spacing... -
Page 13: Mounting The Inverter
※ 4.2 Mounting the Inverter 3) Follow the instructions in the picture below to install the M10 bracket screws (bolt, spring washer, flat washer) and tighten the bolts with torque wrench in the torque of 35- 4.2.1 Wall bracket installation 40N.m, see Figure 4-6 for details: Dimensions of wall bracket, see Figure 4-4: 310mm... -
Page 14: Electrical Connection
Warning Do not use other brands or other types of terminals other than the terminals in the accessory package. Sunways has the right not to undertake quality assurance for all damages caused by the mixed-use of terminals. Attention Moisture and dust can damage the inverter, ensure the cable gland is securely tightened during installation. - Page 15 Single inverter wiring diagram If you get Sunways meter B, please refer to Figure 4-9B： This diagram is an example without special requirement on electrical wiring connection. Neutral line of AC supply can be isolated or switched. If you get Sunways meter A, please refer to Figure 4-9A：...
- Page 16 4 Product Installation This diagram is an example for Australia and New Zealand. Neutral line of AC supply must For Sunways meter B, please refer to Figure 4-10B: not be isolated or switched. For Sunways meter A, please refer to Figure 4-10A:...
- Page 17 4.3.2 External ground connection 4.3.3 Inverter PV string connection 1. The following must be considered when making electrical connections to the inverter: 1) Disconnect the AC breaker switch on the grid side. Do not connect the N-wire as a protective ground wire to the inverter casing. Otherwise, it may 2) The DC switch of the inverter must be turned to the "OFF"...
- Page 18 3) Disassemble the connector in the accessory bag, as shown in Figure 4-13: Op en -en d W re nc h Figure 4-15 Figure 4-13 1. Before assembling the DC connector, make sure that the cable polarity is correct. 2. Use a multimeter to measure the voltage of the DC input string, verify the polarity of the DC input 4) Insert the DC cable through the DC connector nut into the metal terminal and press the terminal Warning cable, and ensure that each string voltage is within 1000V.
- Page 19 4.3.4 Inverter battery connection 1.The following principles must be considered when making battery connection: 1) Disconnect the AC breaker on the grid side. 2) Disconnect the breaker on the battery side. 3) Turn the inverter DC switch to the “OFF” position. 4) Make sure the maximum input voltage of battery is within the inverter limitation (135~800V).
- Page 20 3) Before connecting to the power grid, make sure that the power grid voltage and frequency meet the requirements of the inverter. See technical parameters for details. 2. AC connector assembly procedures The recommended AC cable and AC breaker for Sunways STH 15~33kW series three-phase hybrid inverter are as shown in the following table: STH-...
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Page 21: Meter And Ct Connection
The Meter can be installed in the AC combiner box or other places that are unable to be touched by children. Sunways CTs integrate a cable with length of 2m and could be extended to 5m at max. Figure 4-24... - Page 22 Connect CT to detect current L2-S2 L2-S2 2) The CTs have been connected to the Sunways Meter when you received them, and you just need L3-S1 L3-S1 to follow the wiring diagram in the Meter to connect CT, as shown in Figure 4-27.
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Page 23: Communication Connection
※ 4.5 Communication Connection Inverter communication interface and definition as shown in table below: 4.5.1 Communication wiring illustration Type Definition All communication ports are hidden behind the communication terminal at the bottom of inverter METER Communicate with Meter which including Meter port, CAN port, BMS port, EMS port, RLYOUT port, DRED port, as shown in Figure 4-29、4-30. - Page 24 Before purchasing the battery, you have to make sure the battery you selected is in the battery approval list of Sunways, otherwise, the system may not work properly. Please contact your installer or Sunways service team for confirmation if you re not sure about it.
- Page 25 4.5.6 One key to shut off Sunways STH 15~33kW hybrid inverter comes standard with one key to shut off function, and you can use this function by connecting an external switch into the DRED interface if it requires in the Figure 4-36 EMS communication wiring diagram installation place.
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Page 26: Monitoring Device Installation
※ 4.6 Monitoring Device Installation 2) Turn the DC switch in the inverter bottom to the “ON” position. Sunways STH 15-33kW series hybrid inverter supports WIFI, LAN, and 4G communication. 3) Turn on the lithium battery switch. Plug the WIFI, LAN, or 4G module into the COM1 port in the bottom of inverter (as shown in Figure 4) The inverter will start to check the DC and AC input parameters and self-check, and if 4-39). -
Page 27: General Operation
6 General Operation 6.1.2 LAN/WIFI Setting ※ 6.1 Display Operation DHCP ON Gateway LAN Reset DHCP Set IP Address Subnet Mask DNS Address Address When the inverter is turned on, the following interfaces will be displayed on the OLED display, and the OLED display allows the user to check various operation information and to modify the settings Setting Setting... - Page 28 6 General Operation 6 General Operation Abbreviation Complete Name Inverter Display Abbreviation and Complete Name Reference Table E-Day Daily Energy Generation Abbreviation Complete Name E-Total Total Energy Generation Work Mode Current Work Mode / Work Mode Setting H-Total Total Generating Hours Peakload Shifting Peakload Shifting Function Switch System Info...
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Page 29: Country Code (Safety Code) Setting
※ 6.4 Online Monitoring APP results. Sunways inverter provides a monitoring port that can collect and transmit data from Connect the AC cable, auto test will start after the inverter connected to the grid, see the operation the inverter to Sunways monitoring platform via an external monitoring device. Please steps below: refer to the product nameplate on side of enclosure to get the monitoring application. -
Page 30: Troubleshooting
1. Restart the inverter. which is generally caused by 2. Check if the insulation of the wires in PV, battery, and Sunways STH 15-33kW series hybrid inverter is designed in accordance with grid operation ISO Over Limitation poor insulation to ground of the AC is damaged. - Page 31 2. If the neutral & ground cable are connected well, 1. Restart the inverter. Bus Volt Low Bus voltage is too low. please contact Sunways. 2. Seek for help from the installer or manufacture. 1. Restart the inverter. 1. Restart the inverter.
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Page 32: Maintenance
Restart the inverter only after removing the fault that impairs safety performance. Never arbitrarily replace any internal components. 1. Restart the inverter. For any maintenance support, please contact Sunways. Otherwise, Sunways shall not be held Phase Order Err phase sequence error. -
Page 33: Technical Parameters
8 Technical Parameters STH-15KTL-HT STH-17KTL-HT STH-20KTL-HT STH-25KTL-HT Model Effeiciency STH-15KTL-HT STH-17KTL-HT STH-20KTL-HT STH-25KTL-HT Model Max. Efficiency 98.1% 98.1% 98.1% 98.2% PV Input European Efficiency 97.3% 97.3% 97.3% 97.4% Max. Input Po r (W) 22,500 25,500 30,000 37,500 MPPT Efficiency 99.9% 99.9% 99.9% 99.9%... - Page 34 STH-29.9KTL-HT STH-30KTL-HT STH-33KTL-HT STH-29.9KTL-HT STH-30KTL-HT STH-33KTL-HT Model Model PV Input Effeiciency Max. Input Po r (W) 44,850 45,000 49,500 Max. Efficiency 98.1% 98.1% 98.1% Start-up Voltage (V) European Efficiency 97.3% 97.3% 97.3% Max. DC Input Voltage (V) 1000 1000 1000 MPPT Efficiency 99.9% 99.9%...
- Page 35 No. 1, Second Road, Green Industrial Zone, Chongshou Town, Cixi City, ZheJiang Province, PRC www.sunways-tech.com service@sunways-tech.com...
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