Related Manuals for Sungrow MVS6250
Summary of Contents for Sungrow MVS6250
- Page 1 MVS6250/MVS6800 MV Station Transportation and Installation Guide MVS6250_6800-SEN-Ver11-202003...
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Page 3: Table Of Contents
Contents About This Manual ..............1 1.1 Validity ......................1 1.2 Target Group ....................1 1.3 Symbols Explanation ................... 1 1.4 Terminology ....................3 Safety Instructions ..............4 2.1 General Safety Rules .................. 4 2.2 Ground Fault Protection ................5 2.3 Live Line Measurement ................ - Page 4 3.2.1 Composition ..................9 3.2.2 MV Station Views ................10 3.2.3 Exterior Dimensions ................. 11 3.3 Internal Design ..................11 3.3.1 Internal Composition ................ 11 3.3.2 Bottom Cable Entry ................12 3.3.3 Internal Devices ................13 Identify and Store the MV Station ........... 16 4.1 Identifying the MV Station ................
- Page 5 Electrical Installation .............. 29 6.1 Safety Instructions ..................29 6.1.1 General Rules ................... 29 6.1.2 Five Safety Rules ................31 6.2 Circuit Diagram ..................31 6.3 Cable Connection ..................32 6.3.1 Ground Connection ................33 6.3.2 LV Side Connection ................34 6.3.3 MV Side Connection .................
- Page 6 10.1 Safety Instructions ................52 10.1.1 Five Safety Rules ................53 10.2 Maintenance ................... 53 10.2.1 Introduction ..................53 10.2.2 Maintenance Interval ..............53 10.3 Maintenance Items ................. 54 11 Parameters ................56 11.1 Technical Parameter ............... 56 11.2 Tightening Torques ................. 57 12 Contact Information..............
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Page 7: About This Manual
1 About This Manual 1.1 Validity This manual is intended for the following product MVS6250 MVS6800 Hereinafter it will be referred to as " MV Station" unless otherwise specified. 1.2 Target Group This manual is for technical personnel who are responsible for the transport, installation and other operations on the MV Station. - Page 8 1 About This Manual System Manual DANGER indicates a hazard with a high level of risk which, if not avoided, will result in death or serious injury. WARNING indicates a hazard with a medium level of risk which, if not avoided, could result in death or serious injury.
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Page 9: Terminology
System Manual 1 About This Manual 1.4 Terminology Name For short MV Station MV Station COM100 Communication Box COM100 / communication Box The foregoing devices are expressed in the abbreviation form in this document unless otherwise specified. -
Page 10: Safety Instructions
2 Safety Instructions Read the safety instructions carefully before installing the MV Station. Refer to corresponding manuals for the safety instructions on the internal devices. 2.1 General Safety Rules Touching the terminals or contactors connected to the grid may lead to electric shock! ... -
Page 11: Ground Fault Protection
System Manual 2 Safety Instructions The locking device on the pressure relief valve must be removed before operation. Refer to "Fig. 7-1 Remove the locking device of the pressure relief valve". 2.2 Ground Fault Protection If a ground fault occurs in the PV system, some parts that are supposedly voltage-free may carry lethal voltage. -
Page 12: Voltage-Free Operations
2 Safety Instructions System Manual 2.5 Voltage-free Operations Perform operations on the MV Station only when all devices inside the MV Station are completely voltage-free. Avoid any inadvertent re-connections. Verify that no voltage or current is present with appropriate testing devices. Ground and short-circuit whenever necessary. -
Page 13: Daily Operation And Maintenance
System Manual 2 Safety Instructions Post warning signs near the MV Station upstream and downstream switches to prevent inadvertent connection. Place necessary warning signs or barriers near the on-site operation areas. 2.9 Daily Operation and Maintenance Make sure the doors of the MV Station are closed and locked during daily operation to prevent internal devices from damages caused by rain or rodents. -
Page 14: Disposal Of Waste
All the descriptions in this manual are for the standard MV Station. Please inform us in the purchase order if you have specific requirements. The actual product you receive may differ. This manual may not cover all possible situations. Should a specific problem not explained in this manual occur, please contact Sungrow. -
Page 15: Product Description
3 Product Description 3.1 System Overview The MV Station is mainly applied to large-and-medium PV power station. The MV Station can meet the modular design and quick installation requirements of the large-and-medium PV power station and can ensure the long-term, reliable, and safe power generation compliant with the grid. -
Page 16: Mv Station Views
3 Product Description System Manual Name Description Including an MV switchgear, a control panel, and a communication box. Switchgear room The MV switchgear is connection point of the MV Station and grid and also the main protection device for the connection and disconnection from the grid. -
Page 17: Exterior Dimensions
System Manual 3 Product Description 3.2.3 Exterior Dimensions Dimensions Width(W) Height(H) Depth(D) 6,058 mm 2,896 mm 2,438 mm Clearance Requirements 3.3 Internal Design 3.3.1 Internal Composition Device layout inside the MV station is as follows: Name LV connection area MV Transformer MV switchgear... -
Page 18: Bottom Cable Entry
3 Product Description System Manual Name Communication box and control panel (upper part and lower part respectively) 3.3.2 Bottom Cable Entry Cable entries are designed on the bottom of MV Station. All cables connecting MV Station and external devices run in and out through the bottom cable entries. Bottom View Table 3-1 Cable entry of MV Station Name... -
Page 19: Internal Devices
System Manual 3 Product Description MV Side Cable Entries Table 3-2 Cable entry of the MV switchgear Manufacturer of the MV switchgear Grid voltage Dimensions Refer to the foregoing figure Siemens 24kV Refer to the foregoing figure 24kV Refer to the foregoing figure 36kV 24kV/ Refer to the foregoing figure... - Page 20 3 Product Description System Manual Figure Name Description To obtain the temperature of the winding. The alarm temperature is set to Winding temp indicator* be 100°C The tripping temperature is set to be 110°C The pressure gauge is used to obtain Pressure gauge the pressure inside the oil tank.
- Page 21 System Manual 3 Product Description Figure Name Description when oil level of the MV transformer oil Oil filling valve tank is low, open the valve for oil filling. When a fault occurs in the transformer, the oil in the oil tank will be decomposed to generate gas, and the gas will rise and enter the gas relay.
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Page 22: Identify And Store The Mv Station
Therefore, once you receive the MV Station, a detailed inspection is necessary. If any damage is detected, contact the forwarding company or Sungrow immediately. Examine the contents of the shipment to check the scope of delivery described in the packing list for completeness. -
Page 23: Storage Of The Mv Station
System Manual 4 Identify and Store the MV Station 4.3 Storage of the MV Station If the MV Station is not to be installed immediately after delivery, store it appropriately: Store the MV Station indoors, for example, large warehouse or workshop, to prevent possible condensation or damp. -
Page 24: Mechanical Installation
Mechanical Installation Respect all local standards and requirements during mechanical installation. 5.1 Transport All devices are installed inside the MV Station before delivery. The MV Station should be transported as a whole. Transport the MV Station by a crane with sufficient load capacity. The MV Station is delivered to the user by the forwarding company. -
Page 25: Hoisting The Mv Station
System Manual 5 Mechanical Installation Additionally, the following requirements should be met when the MV Station is placed on the ground: Place the MV Station carefully and gently. Do not pull or push the MV Station on any surface. The place should be firm and flat with good drainage and no obstacles or outshoots. -
Page 26: Hoisting
5 Mechanical Installation System Manual Crane Fig. 5-1 Hoisting the MV Station 5.2.2 Hoisting During the whole hoisting process, please observe the following rules: Hoist the MV Station in a vertical manner. Do not drag or drop the MV Station on any surface. -
Page 27: Fastening Of Connectors
System Manual 5 Mechanical Installation Fig. 5-2 Hoisting from top fittings Item Requirement Steel Length(L) ＞6.5 m Steel Rope Qty. 4 pieces 5.2.3 Fastening of Connectors Use slings with hooks or U-hooks to hoist the MV Station. The lifting devices should be correctly connected to the MV Station. -
Page 28: Foundation
National and local safety rules should be observed at all times. Violating relevant safety rules may void pertinent warranty claims from Sungrow. 5.3 Foundation 5.3.1 Selection of Installation Site When selecting the installation site, consider the following requirements at least: ... -
Page 29: Recommended Foundation Construction Plan
System Manual 5 Mechanical Installation Improper foundation construction may affect the placement of the MV Station, open & close of the door, and future maintenance. Therefore, the foundation must be designed and constructed according to the related standard. The dimensions and weight of the MV Station, the cable route, and the future maintenance should be considered at all times. - Page 30 5 Mechanical Installation System Manual Name Foundation Solid ground, e.g. gravel Foundation Name Pre-embedded 20# channel steel The foundation plan described in this chapter is for reference only. Consult the professional personnel before construction.
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Page 31: Other Precautions
System Manual 5 Mechanical Installation 5.3.4 Other Precautions A drainage system should be designed on the installation site to prevent the MV Station from being immersed in water during heavy rainfalls. Do not plant any trees near the MV Station installation site to prevent the damage of the MV Station caused by tree leaves or stems. -
Page 32: Removing Sealing Plates, Sealing Tapes And Fasteners
5 Mechanical Installation System Manual ** The bolt specification may vary with different projects. Specifically, refer to the final deliveries. Installation Method Screw Torque (N·m) M12x35 60~70 M16x50 119~140 M16X150 Other Precautions A drainage system should be designed on the installation site to prevent the MV Station from being immersed in water during heavy rainfalls. -
Page 33: Opening The Door Of Transformer Room
System Manual 5 Mechanical Installation Note Sealing plates Sealing tapes Fastens Sealing plates, four larger plates(D2) and one smaller plate(D1). The larger one weights 43kg, while the smaller weights 21kg. Further Operations It unnecessary to reassemble these fasteners (shown in figure above) removed. 5.6 Opening the Door of Transformer Room Step 1 Insert the key to open the door. -
Page 34: Clearance Requirement
5 Mechanical Installation System Manual Step 2 Open the right door. Pull the upper and lower latches on the left door, to open the front left door. 5.7 Clearance Requirement On site, MV Station works together with the inverter. Required clearances around MV Station and the inverter are shown in the figure below. -
Page 35: Electrical Installation
Electrical Installation 6.1 Safety Instructions 6.1.1 General Rules High voltage! Electrical hazards! Do not touch the live components of the device. Make sure the MV Station are voltage-free before installation. Never put flammable materials in the vicinity of the MV Station. If a ground fault occurs in the PV system, some parts that were voltage-free before may contain lethal voltage. - Page 36 Only professional electricians can perform the electrical connection. Professional electricians should meet the related requirements listed in "2 Safety Instructions" in this manual. Sungrow should hold no liability for any personal injury or property loss caused by ignorance of the safety instructions.
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Page 37: Five Safety Rules
The installation and design of the MV Station must fulfill national and local standards and regulations. Sungrow should hold no liability for the MV Station or system fault caused by ignorance of the description in this manual. Select optical fibers as the external communication cable to lower the signal interference. -
Page 38: Cable Connection
6 Electrical Installation System Manual Power cable Communication cable Fig. 6-1 MV Station main circuit diagram Note: The switchgear shown above is for reference only, and the actual product may differ. Devices in the above figure are: Item Name Recommended specifications Six-phase, and each phase supports 400 mm Connect to the inverter copper/aluminum wire utmost... -
Page 39: Ground Connection
System Manual 6 Electrical Installation 6.3.1 Ground Connection Brief Introduction Generally, the ground connection includes equipotential connection of internal devices and external grounding. External Grounding For ease of onsite cable connection, two grounding points are designed at the exterior of the MV Station, as shown in the figure below. -
Page 40: Side Connection
6 Electrical Installation System Manual It is recommended that two points of the MV Station should be connected to the ground system of the PV plant. The MV Station needs to be grounded on site. The following operations should also be conducted on site: Measure the electrical conductivity between the device ground terminals and the total equipotential connection copper bar to ensure the effectiveness of the internal ground connection. - Page 41 System Manual 6 Electrical Installation Strip off the insulation cover of the cable with a stripped length of 5mm longer than the Step 2 depth of the cable lug. L=D+5mm Cable Crimp the cable lug. Step 3 1. Insert the stripped cable into the cable lug. 2.
- Page 42 6 Electrical Installation System Manual Fig. 6-2 Cable connection for copper terminal Fig. 6-3 Cable connection for copper-aluminum adapter terminal Copper-aluminum adapter Copper Bus Bolt Spring washer Flat washer terminal 2. Fasten the M16 x 65 bolts (in the scope of delivery) with a screwdriver or spanner. The tightening torque: 119~145 N·m.
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Page 43: Mv Side Connection
System Manual 6 Electrical Installation 6.3.3 MV Side Connection Terminals connecting the external devices on the MV side of the MV Station are located on the MV switchgear. On site, perform cable connection according to the MV switchgear manual. NOTICE Ensure correct phase sequence during cable connection 6.3.4 Communication Cable Connection All internal communication terminals of the MV Station have been connected to the... -
Page 44: Checking After Electrical Connection
6 Electrical Installation System Manual *The figure is indicative only, and actual product may differ. On site, perform cable connections according to the actual wiring diagram. 6.4 Checking after Electrical Connection Checking Item Requirement The equipment is intact, and free from rust and paint flake-off. Repaint areas with paint flake-off (if any). - Page 45 System Manual 6 Electrical Installation Checking Item Requirement Check the bottom of the MV Station and seal the gaps between the cables with fireproof mud. If cable glands are used, make sure they are tightened. Seal the unused terminal. Others ...
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Page 46: Checking Before Power-On And Power- Off
7 Checking before Power-On and Power- Off NOTICE The operations described in this chapter must be performed by professional personnel in accordance with local regulations/standards. 7.1 MV Station Container Checking item The installation conforms to the design requirements. The container is level, and each door can be opened properly. There is no crack, dent, or scratch on the container surface. -
Page 47: Mv Transformer
System Manual 7 Checking before Power-On and Power- Off Checking item If there is a relay protection tester or current source, check the value settings of the protective device, including the set value, control word, and soft clamping plate. The set value must match that provided by the user. Check that the trip enable/disable slicer has been put into operation. - Page 48 7 Checking before Power-On and Power- Off System Manual Checking item Check the external air insulation distance. Whether the air insulation distance between different voltage grade bushing and bushing to ground conforms to relevant standard. The oil leak port of the transformer room is not blocked. The screen door of the transformer room is closed and locked.
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Page 49: Cabinet
System Manual 7 Checking before Power-On and Power- Off Fig. 7-2 Adjust the voltage ratio via the tap changer 7.4 LV Cabinet Checking item The copper bar is not deformed, and no foreign matter is on the copper bar. Check and make sure the neutral point of the transformer is not grounded, the input &... -
Page 50: Troubleshooting
(Note: If it is determined that the internal fault is serious, the inside of the transformer has been damaged, contact Sungrow for replacement.) Pressure relief trip The pressure relief valve elastic element expander internal jam, or the bolt torque... - Page 51 System Manual 8 Troubleshooting Fault Possible Reason Measures test reasons, the oil was not replenished to the normal oil level in time. 1. Transformer overload operation. Overload Check transformer operation may result in a overloaded. high temperature alarm. Oil temperature alarm Check transformer heat...
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Page 52: Routine Maintenance
9 Routine Maintenance Due to ambient temperature, humidity, dust, and vibration, the MV Station and the inner components will age and wear. To ensure the system safety and maintain the efficiency of the MV Station, it is necessary to carry out routine and periodic maintenance. All measures, which can help the MV Station work in good conditions, are within the maintenance scope. -
Page 53: Safety Rules
System Manual 9 Routine Maintenance Voltages may still be present on cable connection terminals inside the MV Station even though the switches are disconnected. To avoid electric shock hazard, perform the following operations before starting maintenance work, Disconnect all the switches of the MV Station; ... -
Page 54: Maintenance Items
Make sure all bolts are securely fixed. Repair immediately any anomalies found during routine maintenance. If there are any doubts, contact Sungrow. 9.3 Maintenance Items Routine inspection and maintenance must comply with relevant regulations of the electric utility. - Page 55 System Manual 9 Routine Maintenance Check Item Check Method Interval Check whether the temperature inside the equipment or the temperature of the equipment shell is too high. Check whether warning labels are clear and replace them if necessary. Check whether the humidity and dust in the equipment are heavy, and clean the equipment.
- Page 56 9 Routine Maintenance System Manual Check Item Check Method Interval Check the electric indicator to see whether theL1/L2/L3 indicator is normal. not, replace theL1/L2/L3 indicator under power off condition. Check level meter indication of the transformer. If the oil level is low, power off the transformer and refill it in time.
- Page 57 System Manual 9 Routine Maintenance Check Item Check Method Interval Replace the damaged lights in time. Replace the damaged smoke Other equipment sensor and fire extinguisher in If necessary time. Replace the temperature and humidity controller in time. Note: For more information, refer to the MV transformer manual and MV switchgear manual.
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Page 58: Routine Maintenance
Routine Maintenance Due to ambient temperature, humidity, dust, and vibration, the MV Station and the inner components will age and wear. To ensure the system safety and maintain the efficiency of the MV Station, it is necessary to carry out routine and periodic maintenance. All measures, which can help the MV Station work in good conditions, are within the maintenance scope. -
Page 59: Five Safety Rules
System Manual 10 Routine Maintenance Voltages may still be present on cable connection terminals inside the MV Station even though the switches are disconnected. To avoid electric shock hazard, perform the following operations before starting maintenance work, Disconnect all the switches of the MV Station; ... -
Page 60: Maintenance Items
Before performing maintenance, remove the internal protective grid. Make sure to reassembly the grid and fasten all the screws after the maintenance work. Make sure all bolts are securely fixed. Repair immediately any anomalies found during routine maintenance. If there are any doubts, contact Sungrow. 10.3 Maintenance Items Check item Check method ... - Page 61 System Manual 10 Routine Maintenance Check item Check method valve. Oil level device: Oil level is at the normal level. Pressure gauge: Pressure is at the normal level. Tap changer Pressure relief valve Pressure gauge Transformer Leakage ...
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Page 62: Parameters
Parameters 11.1 Technical Parameter MV Station input MVS6250 MVS6800 Nominal voltage 2 x 600 V Grid frequency 50 Hz / 45~55 Hz, 60 Hz / 55~65 Hz Max. AC input current 2 x 3458 A MV Station output 6250 kVA@50℃... -
Page 63: Tightening Torques
System Manual 11 Parameters Storage ambient -35°C~+70°C temperature* Relative humidity 0% to 95%(no-condensing) Max. operating altitude 1000m(standard)/>1000m(optional) Degree of protection IP54 *Parameters may vary subject to specific project requirement Table 11-1 Correspondence between nominal current and short circuit breaking current Nominal Short circuit... -
Page 64: Contact Information
Serial number of the device Fault code/name Brief description of the problem China (HQ) Australia Sungrow Power Supply Co., Ltd Sungrow Australia Group Pty. Ltd. Hefei Sydney +86 551 65327834 +61 2 9922 1522 service@sungrowpower.com service@sungrowpower.com.au Brazil... - Page 65 Turkey Romania Istanbul Representative Bureau Service Partner - Elerex Istanbul +40 241762250 +90 2127318883 service.romania@sungrow.co service.turkey@sungrow.co U.S.A, Mexico Sungrow Power UK Ltd. Sungrow USA Corporation Milton Keynes PhoenixArizona +44 (0) 0908 414127 +1833 7476937 service.uk@sungrow.co techsupport@sungrow-na.com Vietnam Sungrow Vietnam Hanoi +84 918 402 140 service@vn.sungrowpower.com...