Page 1 Preventative Maintenance Manual PowerTitan1.0 (Switch Gear) PowerTitan1.0 (Switch Gear)Preventative Maintenance ManualPowerTitan1.0 (Switch Gear) Preventative Maintenance Manual-MEN-Ver11- 202501 PowerTitan1.0 (Switch Gear) Preventative Maintenance Manual-MEN-Ver11-202501...
Page 3: All Rights Reserved
Software Licenses • It is prohibited to use data contained in firmware or software developed by SUNGROW, in part or in full, for commercial purposes by any means. • It is prohibited to perform reverse engineering, cracking, or any other operations that...
Page 4: About This Manual
About this Manual To ensure the safety and efficiency of the system, regular daily inspections of the energy storage system are necessary. This manual mainly introduces the inspection intervals and steps of the energy storage system. This manual introduces the standard version of the product as an example, and the operation steps for the customized version are similar.
Page 5 This symbol indicates that there is a potential risk, which may cause the equipment to fail to operate normally or cause property damage if not avoided. "Notes" are the additional information in the manual, which emphasize and supplement the contents, and may also provide skills or tips for optimizing the use of the product, and help the user solve a problem or save time.
Page 6 Symbol Description This symbol indicates the need to wear safety goggles. This symbol indicates that the product is recyclable. This symbol indicates that lithium batteries are recyclable. This sign indicates that the noise is harmful, please wear earplugs.
Page 7: Table Of Contents
Contents All Rights Reserved .....................I About this Manual .......................II 1 Safety Overview ....................1 1.1 Personnel Requirements.................1 1.2 Weather and Environmental Requirements............1 1.3 PPE and ESE....................2 1.4 Inspection Tools .....................3 1.5 Operational requirements................4 1.6 Component Scrapping ..................6 2 Battery Container .....................7 2.1 Inspection Checklist..................7 2.2 Check Appearance ..................12 2.2.1 Safety Precautions ................12...
Page 8 2.4.2.2 List of Consumables ..............34 2.4.3 Inspection Procedures.................34 2.4.4 Inspection Steps (Once a year) ............35 2.5 Check Grounding and Equipotential Connections..........38 2.5.1 Safety Precautions ................38 2.5.2 Material Preparation ................38 2.5.2.1 Tool preparation.................38 2.5.2.2 List of Consumables ..............39 2.5.3 Inspection Procedures.................39 2.5.4 Inspection Steps (Once a year) ............41 2.6 Check Components ..................43 2.6.1 Safety Precautions ................43...
Page 9 2.9.3 Inspection Procedures.................65 2.9.4 Inspection Steps (Once every six months)..........67 2.9.5 Inspection Steps (Once a year) ............74 3 Switch Gear .....................76 3.1 Inspection Checklist..................76 3.2 Check Appearance ..................77 3.2.1 Safety Precautions ................77 3.2.2 Material Preparation ................77 3.2.2.1 Tool Preparation ................77 3.2.2.2 List of Consumables ..............78 3.2.3 Inspection Procedures.................78 3.2.4 Inspection Steps (Once a year) ............79...
Page 10 4.2 Check Appearance ..................96 4.2.1 Safety Precautions ................96 4.2.2 Material Preparation ................96 4.2.2.1 Tool Preparation ................96 4.2.2.2 List of Consumables ..............97 4.2.3 Inspection Procedures.................97 4.2.4 Inspection Steps (Once a year) ............99 4.3 Check System Status and Cleanliness ............103 4.3.1 Safety Precautions ................103 4.3.2 Material Preparation ................
Page 11 4.7 Check Functionality ..................133 4.7.1 Safety Precautions ................133 4.7.2 Material Preparation ................133 4.7.2.1 Tool Preparation ..............133 4.7.2.2 List of Consumables ..............134 4.7.3 Inspection Procedures............... 134 4.7.4 Inspection Steps (Once every six months)........... 135 5 PCS ........................
Page 12 5.5.3 Inspection Procedures............... 167 5.5.4 Inspection Steps (Once a year) ............169 5.6 Check Components ..................170 5.6.1 Safety Precautions ................170 5.6.2 Material Preparation ................171 5.6.2.1 Tool Preparation ..............171 5.6.2.2 List of Consumables ..............171 5.6.3 Inspection Procedures............... 172 5.6.4 Inspection Steps (Once every six months)...........
Page 13 6.4.2.1 Tool Preparation ..............194 6.4.2.2 List of Consumables ..............194 6.4.3 Inspection Process................195 6.4.4 Inspection Steps (Once a year) ............196 6.5 Check Transformer Protection Status............196 6.5.1 Safety Precautions ................196 6.5.2 Material Preparation ................197 6.5.2.1 Tool Preparation ..............197 6.5.2.2 List of Consumables ..............
Page 14 7.3.2.1 Tool Preparation ..............212 7.3.2.2 List of Consumables ..............213 7.3.3 Inspection Procedures............... 213 7.3.4 Inspection Steps (Once every six months)........... 215 7.3.5 Inspection Steps (Once a year) ............218 7.4 Check Components ..................220 7.4.1 Safety Precautions ................220 7.4.2 Material Preparation ................
Page 15 8.5 Appearance Repair..................239 8.5.1 Detergent Cleaning ................239 8.5.2 Finish Paint Repair ................240 8.5.3 Double-Layer Paint Repair..............242 8.6 UPS Fault Recovery ................... 245 8.7 Connect the detector via Bluetooth .............. 247 8.8 Abbreviations ..................... 252 8.9 Quality Assurance ..................253 8.10 Contact Information ..................
Page 17: Safety Overview
• Do not conduct maintenance operations while the doors of the system are open in overcast, rainy, humid or windy weather. Sungrow is not liable for any losses incurred if such situations cannot be avoided. •...
Page 18: Ppe And Ese
1 Safety Overview Preventative Maintenance Manual Warning sign settings To prevent unauthorized personnel from approaching the equipment and causing misoperation or accidents, adhere to the following precautions: • Place conspicuous warning signs around the equipment to prevent accidents caused by accidental turning-on. •...
Page 19: Inspection Tools
Preventative Maintenance Manual 1 Safety Overview Fluorescent vest Insulating gloves Safety helmet Safety goggles Earplugs Insulated shoes If working on live equipment, ensure that there are at least two operators on site and prepare the following ESE to ensure personal safety. Rescue rod Insulated stool Face shield...
Page 20: Operational Requirements
The battery unit contains no user-serviceable parts. • Users should not attempt to maintain the battery themselves. Only personnel authorized by Sungrow can remove, replace, or handle the battery. • Disassembling or burning the battery could result in a fire.
Page 21 To reduce the risk of electric shock, do not perform any other maintenance operations beyond those specified in this Manual. • If necessary, please contact Sungrow customer service staff for maintenance. Device Safety • Do not spray any components inside or outside the device.
Page 22: Component Scrapping
1 Safety Overview Preventative Maintenance Manual Component Scrapping When damaged internal components are found during inspections and need to be scrapped, they should not be treated as regular waste. Some components can be recycled for reuse, while others may pollute the environment. Please contact a locally authorized professional recycling organization for proper disposal of the product and its internal components.
Page 23: Battery Container
Battery Container Inspection Checklist The inspection items for the battery container are listed in the table below. • The recommended maintenance intervals provided below should be adjusted based on the specific environmental conditions where the product is installed. • Factors such as the scale of the plant, installation location, and on-site environmental conditions will influence the maintenance intervals.
Page 24 2 Battery Container Preventative Maintenance Manual Inspection Type Details interval Check if there are any internal foreign objects, dust and grime. Remove interior dust if necessary. (With a vacuum cleaner instead of a broom) Check if any air inlet or air outlet of the Once a year cabinet is blocked.
Page 25 Preventative Maintenance Manual 2 Battery Container Inspection Type Details interval Check if the grounding connection is correct, and ensure the grounding resistance value does not exceed 4Ω. Grounding and Check if the equipotential bonding is equipotential Once a year correct inside the system. connection Check if the cable shielding layer is in check...
Page 26 2 Battery Container Preventative Maintenance Manual Inspection Type Details interval View settable parameters on the web interface. View the operational records of battery clusters and check if the current, voltage, and temperature are within specified ranges. Save the operational data, parameters, and logs to the relevant files.
Page 27 Preventative Maintenance Manual 2 Battery Container Inspection Type Details interval 0.2 bar. If the high pressure exceeds 2.8 bar, check the filter of the liquid cooling system for dirt or blockage. If the low pressure falls below 0.2 bar, the liquid cooling system requires refilling.
Page 28: Check Appearance
2 Battery Container Preventative Maintenance Manual Check Appearance 2.2.1 Safety Precautions When inspecting the top of the outdoor cabinet, follow the procedures for working at heights. Maintenance personnel must wear personal protective equipment such as climbing helmets and climbing safety ropes. •...
Page 29: List Of Consumables
Preventative Maintenance Manual 2 Battery Container Qty./pcs Name Notes It is recommended to use a 3m-high A- frame ladder (the outdoor cabinet is 2600mm high; ladder height should be Ladder adjusted based on the foundation height on site). Safety rope Safety helmet Safety gloves Dust mask...
Page 30: Inspection Procedures
2 Battery Container Preventative Maintenance Manual Is it included in the list of Name Material code delivered spare parts M16×50 hexagonal head bolt (full S-A-000733 threads) M16 flat washer S-Q-000399 M16 standard spring S-K-000021 washer M16 large washer S-Q-000400 M16×150 expansion bolt Sealing strip F-EA-00034...
Page 31: Inspection Steps (Once A Year)
Preventative Maintenance Manual 2 Battery Container figure 2-1 Inspection procedures of appearance check 2.2.4 Inspection Steps (Once a year) Step 1 Check for flammable materials around the cabinet. Common flammable materials include but are not limited to linoleum, wood, paint, plastics, and decoration and fit-out materials.
Page 32 2 Battery Container Preventative Maintenance Manual Step 2 Check if soldering points between the cabinet and the foundation steel plates are solid, and check for signs of rust. To shut down the BLOCK, refer to "8.4.1 Power on/off via WEB" for the specific steps.
Page 33 Preventative Maintenance Manual 2 Battery Container figure 2-4 Fixation with bolts * The above picture is for reference only. The received products may be different! Check the fixation points between the cabinet and the foundation steel plates for any signs of rust. If rust is detected, remove it using rust remover or sandpaper. Let the surface dry, and then apply paint with a soft bristle brush.
Page 34 2 Battery Container Preventative Maintenance Manual Step 4 Check the cabinet door locks for smooth operation. If necessary, lubricate door locks, hinges, etc. properly. Wear safety gloves and manually open and close the cabinet door to check if the door lock and hinges open and close smoothly.
Page 35: Check System Status And Cleanliness
Preventative Maintenance Manual 2 Battery Container Step 5 Check if sealing strips, etc. are securely attached. Properly maintained sealing strips are essential for preventing water ingress into the cabinet. Inspect them carefully, and replace immediately if any sealing strips are found damaged. To shut down the BLOCK, refer to "8.4.1 Power on/off via WEB"...
Page 36: Material Preparation
2 Battery Container Preventative Maintenance Manual • When cleaning, direct washing with water is strictly prohibited; use a vacuum cleaner if necessary. • Do not clean internal equipment with detergents or expose it to harsh chemicals. 2.3.2 Material Preparation 2.3.2.1 Tool Preparation When checking the system operating status, it is recommended to prepare tools including but not limited to the following to ensure the maintenance work proceeds smoothly.
Page 37: List Of Consumables
Preventative Maintenance Manual 2 Battery Container Qty./pcs Name Notes It is recommended to use dry cleaning Dry paper towel/ tools such as dusters and paper towels. duster It is recommended to use an industrial Industrial vacuum vacuum cleaner equipped with swivel cleaner casters and directional casters.
Page 38 2 Battery Container Preventative Maintenance Manual Once every six months The maintenance takes approximately 10min. figure 2-7 Inspection procedures of system status and cleanliness (once every six months) Once a year The maintenance takes about 15min. figure 2-8 Inspection procedures of system status and cleanliness (once a year) Once every two years The maintenance takes about 20min.
Page 39: Inspection Steps (Once Every Six Months)
Preventative Maintenance Manual 2 Battery Container figure 2-9 Inspection procedures of system status and cleanliness (once every two years) 2.3.4 Inspection Steps (Once every six months) Step 1 Check if there are any foreign objects, dust, or dirt on the foundation. Visually check the foundation for foreign objects, dust and grime.
Page 40 2 Battery Container Preventative Maintenance Manual Step 2 Check the air inlet/outlet filter meshes for dust and grime, and clean them if necessary. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and inspect the air inlet /outlet filter meshes on the cabinet doors.
Page 41: Inspection Steps (Once A Year)
Preventative Maintenance Manual 2 Battery Container 2.3.5 Inspection Steps (Once a year) Step 1 Check if there are any internal foreign objects, dust and grime. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the cabinet doors.
Page 42 2 Battery Container Preventative Maintenance Manual Step 2 Check the air inlets and outlets for blockages. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the cabinet doors.
Page 43 Preventative Maintenance Manual 2 Battery Container Step 3 Check if any screw inside the cabinet is detached. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the cabinet doors.
Page 44 2 Battery Container Preventative Maintenance Manual Step 4 Check if there is water ingress within the cabinet. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the cabinet doors.
Page 45: Inspection Steps (Once Every Two Years)
Preventative Maintenance Manual 2 Battery Container 2.3.6 Inspection Steps (Once every two years) Step 1 Check if any internal equipment is damaged or deformed. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, open the cabinet doors, and them visually inspect internal devices.
Page 46 2 Battery Container Preventative Maintenance Manual Step 3 Check if the temperatures inside the cabinet and on its enclosure are excessively high. As each device has different rated operational conditions, there is no uniform standard for judging temperature rise; therefore, measure and analyze the temperatures of multiple systems.
Page 47 Preventative Maintenance Manual 2 Battery Container The above component specifications are for reference; components vary in operating temperature, so please refer to the specific component specification sheets. Step 4 Check if the humidity inside the cabinet is within the normal range. Please wear safety helmets and gloves, and open the cabinet doors.
Page 48: Check Cable Connections
2 Battery Container Preventative Maintenance Manual Step 5 Check if there are any signs of oxidation or rust inside the cabinet. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, open the cabinet doors, and visually check if there are signs of rust or oxidation in it.
Page 49: Material Preparation
Preventative Maintenance Manual 2 Battery Container Please follow standardized operation when plugging and unplugging cables, and rough or violent operation are not be allowed. When plugging or unplugging the power cord plug of the PACK, press and hold the button on the plug before plugging or unplugging, otherwise it may cause the plug to become loose, have poor contact, or damage the socket.
Page 50: List Of Consumables
2 Battery Container Preventative Maintenance Manual 2.4.2.2 List of Consumables The following list is for reference only. If any of the consumables listed below are inconsistent with the accessories actually used on site, the latter should prevail. Is it included in the list of Name Material code delivered spare parts...
Page 51: Inspection Steps (Once A Year)
Preventative Maintenance Manual 2 Battery Container 2.4.4 Inspection Steps (Once a year) Step 1 Check if the cable connections are loose, and re-tighten them according to the specified torque. Check if the power cables are damaged, especially if the insulation layer in contact with metal surfaces has signs of cuts.
Page 52 2 Battery Container Preventative Maintenance Manual Check for discharge or arcing in the power cables and communication cables in the cabinet while it is powered on. If there are any loose connections or abnormal discharge or arcing, immediately shut down the system for inspection. Please refer to "8.4.1 Power on/off via WEB"...
Page 53 Preventative Maintenance Manual 2 Battery Container figure 2-22 Communication cable * The above picture is for reference only. The received products may be different! Check the appearance of the terminal blocks inside the cabinet for any signs of burning, damage, or other abnormalities. If any burning or damage is observed, it is recommended to replace the affected components.
Page 54: Check Grounding And Equipotential Connections
2 Battery Container Preventative Maintenance Manual Step 4 Check the insulation tape at cable connection terminal lugs for detachment. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the cabinet doors.
Page 55: List Of Consumables
Preventative Maintenance Manual 2 Battery Container Quantity/ Description Name Safety helmet Safety gloves Multimeter A Phillips screwdriver is recommended. Screwdriver Open-end/socket wrenches are Wrench recommended. Groundmeter 2.5.2.2 List of Consumables The following list is for reference only. If any of the consumables listed below are inconsistent with the accessories actually used on site, the latter should prevail.
Page 56 2 Battery Container Preventative Maintenance Manual figure 2-25 Procedures of grounding and equipotential connection inspection...
Page 57: Inspection Steps (Once A Year)
Preventative Maintenance Manual 2 Battery Container 2.5.4 Inspection Steps (Once a year) Step 1 Check if the grounding connection is correct, and ensure the grounding resistance value does not exceed 4Ω. It is recommended to take measurements in different directions to improve the accuracy of the results.
Page 58 2 Battery Container Preventative Maintenance Manual Step 2 Check if internal equipotential connections in the cabinet are correct. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the cabinet doors.
Page 59: Check Components
2.6.1 Safety Precautions Please use tools such as dry paper towels to clean the circuit board and components. Sungrow is not responsible for any damage caused by using other tools. Please check the ventilation at the air inlet/outlet. Otherwise, if the module cannot be effectively cooled, it will fail due to overheating.
Page 60: List Of Consumables
2 Battery Container Preventative Maintenance Manual Quantity/ Description Name Safety helmet Safety gloves Dust mask A 3m A-shaped climb ladder is recommended (outdoor cabinet height: Climb ladder 2600mm, can be reasonably configured based on the height of the foundation). Safety harness It is recommended to use dry cleaning Dry paper towels tools such as paper towels.
Page 61: Inspection Procedures
Preventative Maintenance Manual 2 Battery Container Name Material code Is it included in the list of delivered spare parts Liquid-cooled inter- B-Q-007425 cluster fuse assembly Thermal relay Z-D-000001 Relay Z-A-000197 ACDC power supply Q-D-000360 module 3+1 module SPD K-S-000178 1+1 module SPD K-S-000179 AC molded case circuit K-N-000670...
Page 62: Inspection Steps (Once Every Six Months)
2 Battery Container Preventative Maintenance Manual figure 2-30 Inspection procedures of component maintenance (once a year) 2.6.4 Inspection Steps (Once every six months) Step 1 Check the operating status of cooling fans, whether they are blocked, and if there are any abnormal noises during operation.
Page 63 Preventative Maintenance Manual 2 Battery Container Step 2 Routinely check all metal elements for signs of rust. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the cabinet doors.
Page 64 2 Battery Container Preventative Maintenance Manual Step 3 Conduct annual inspection of contactors (auxiliary switches and microswitches) to ensure their smooth mechanical operation. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the BCP cabinet doors.
Page 65: Inspection Steps (Once A Year)
Preventative Maintenance Manual 2 Battery Container 2.6.5 Inspection Steps (Once a year) Step 1 Check if the SPDs and fuses are intact and operational. Log into the battery system controller (BSC) interface. For login steps, please refer to "8.1.1 BSC Login Steps".
Page 66: Material Preparation
2 Battery Container Preventative Maintenance Manual During maintenance or shutdown periods, if the following two conditions persist for more than 120 hours, the resulting capacity loss is not covered under warranty. • The battery discharge cell voltage is lower than 2.7V. •...
Page 67: Inspection Procedures
Preventative Maintenance Manual 2 Battery Container 2.7.3 Inspection Procedures The inspection procedures of functional check are shown in the figure below. The maintenance takes approximately 30min. figure 2-34 Inspection procedures of functional check...
Page 68: Inspection Steps (Once Every Six Months)
2 Battery Container Preventative Maintenance Manual 2.7.4 Inspection Steps (Once every six months) Step 1 View settable parameters on the web interface. Log into the BSC Web interface. Refer to "8.1.1 BSC Login Steps" for the specific steps. Click Param settings, and check if the parameters in System parameters, Comm parameters and Device parameters are set correctly.
Page 69 Preventative Maintenance Manual 2 Battery Container Step 3 Save the operational data, parameters, and logs to the relevant files. Log into the BSC Web interface. Refer to "8.1.1 BSC Login Steps" for the specific steps. Click “History records→Running records→Export”to export the running records locally.
Page 70 2 Battery Container Preventative Maintenance Manual Step 5 Safety function - Check if the emergency stop button is functioning correctly. Log into the BSC Web interface. Refer to "8.1.1 BSC Login Steps" for the specific steps. The maintenance personnel should wear safety helmets and safety gloves; when the cabinet is in operation, press the emergency stop button.
Page 71: Check The Liquid Cooling System
Preventative Maintenance Manual 2 Battery Container Step 7 When the energy storage system is not in use for an extended period, perform a charge- discharge cycle every 6 months to maintain the SOC between 30% and 40%. After recharging, ensure the SOC levels are consistent. •...
Page 72: List Of Consumables
2 Battery Container Preventative Maintenance Manual Qty./pcs Name Note Liquid injection and drainage tooling PH test strip 2.8.2.2 List of Consumables The following list is for reference only. If any of the consumables listed below are inconsistent with the accessories actually used on site, the latter should prevail. Is it included in the list of Name Material code...
Page 73: Inspection Steps (Once Every Six Months)
Preventative Maintenance Manual 2 Battery Container figure 2-36 Inspection procedures of liquid cooling system 2.8.4 Inspection Steps (Once every six months) Step 1 Check if fan blades rotate normally and are undamaged; if rotation fails or blades are damaged, replace the fan. Power off the liquid cooling system.
Page 74 2 Battery Container Preventative Maintenance Manual figure 2-37 Top cooling fans * The above picture is for reference only. The received products may be different! Power up the liquid cooling system, set the communication mode to the local mode on the display screen of the liquid cooling system.
Page 75 Preventative Maintenance Manual 2 Battery Container * The above picture is for reference only. The received products may be different! ii. The control interface will display an icon , indicating that the unit is in cooling mode, and the compressor is operational.
Page 76 2 Battery Container Preventative Maintenance Manual Step 2 Check if the dirt and blockage area on the air inlet for water pump cooling exceeds 5%. If yes, clean with a bristle brush. Power off the system, remove the mesh cover plate on the front of the liquid cooling unit, and check if the dirt and blockage area on the air inlet for water pump cooling exceeds figure 2-38 Front view of the liquid cooling unit * The above picture is for reference only.
Page 77 Preventative Maintenance Manual 2 Battery Container Step 3 Visually check the pump (excluding pipeline connections) for any obvious signs of leakage (- excluding condensate water); if obvious signs of leakage are detected, replace the pump sealing ring. Power off the liquid cooling system, remove the mesh cover on the front of the liquid cooling unit, and check if there are any dripping phenomena (excluding condensate) on the pump body and water pipeline connections.
Page 78 2 Battery Container Preventative Maintenance Manual Step 4 Check the high and low pressure values of the liquid cooling system on its display screen. High pressure should be 2.8 bar, and low pressure should be 0.2 bar. If the high pressure exceeds 2.8 bar, check the water system filter for dirt or blockage.
Page 79: Check The Fire Protection System
Preventative Maintenance Manual 2 Battery Container Step 5 Check the coolant for significant impurities, a marked darkening of the antifreeze, or a PH value below 7.3. Open the liquid inlet or outlet of the liquid cooling system, collect a small amount of coolant, approximately 10ml, in a transparent container.
Page 80: Material Preparation
2 Battery Container Preventative Maintenance Manual • The fire protection system should be regularly inspected and maintained by full-time staff members who have been specially trained and certified. • When the operation management personnel receive an alarm or a fault signal from an energy storage cabinet on the software or station-level fire alarm control unit, fire professionals should conduct a manual reset on the spot after on-site checks on the premise of safety.
Page 81: Inspection Procedures
Preventative Maintenance Manual 2 Battery Container Is it included in the list of delivered spare Name Material code parts Soldered steel pipe CY-A-00000 DN25 clamp F-R-001155 DN40 clamp F-R-001157 Cable clamp CY-C-00022 Non-explosion-proof fire A-ST-04763 exhaust fan Non-explosion-proof fire intake A-ST-04762 Aerosol V-D-000695...
Page 82 2 Battery Container Preventative Maintenance Manual figure 2-42 Inspection procedures of the fire suppression system (once every six months) Once a year The maintenance takes approximately 10min.
Page 83: Inspection Steps (Once Every Six Months)
Preventative Maintenance Manual 2 Battery Container figure 2-43 Inspection procedures of the fire suppression system (once a year) 2.9.4 Inspection Steps (Once every six months) To ensure the accuracy of the combustible gas detector, a gas exposure alarm test must be performed every six months. If the detector fails the test, inspect it and calibrate it if necessary.
Page 84 2 Battery Container Preventative Maintenance Manual Step 2 Power-on test. After the above visual inspection is passed, apply a direct current of 24V to the detectors. The detector self-checks. After the self-check is passed, the green light of the status indicator is on.
Page 85 Preventative Maintenance Manual 2 Battery Container Step 5 Calibration cover installation. Remove front cover. i. Pull down the hanging flat sheet at the bottom to open it. ii. Insert a thin and straight tool (such as a small screwdriver) into the hole on the right side of the remote air inlet port.
Page 86 2 Battery Container Preventative Maintenance Manual figure 2-47 Time synchronization Step 7 Zero calibration. Before use, perform zero calibration on detectors showing ±20. Zero calibration does not require gas filling. If a value other than ±20 is displayed at startup, the detector is faulty. Return it to the supplier for resolution.
Page 87 Preventative Maintenance Manual 2 Battery Container figure 2-48 Zero calibration Step 8 SPAN calibration. The default factory calibration value is 55% LEL. Decrease the value by clicking - until it is 50% LEL. After modifying the SPAN value, open the gas cylinder pressure relief valve and flow meter, connect the calibration cover, and supply gas to the detector for 3 minutes.
Page 88 2 Battery Container Preventative Maintenance Manual After successful calibration, click NEXT to enter the “Purge detector” interface. Step 9 Gas purge. For purging, remove the calibration cover and calibration gas, and leave the detector in the air. After successful purging, the APP displays OK. Click Finish, and the APP will automatically return to the homepage.
Page 89 Preventative Maintenance Manual 2 Battery Container Step 10 Readback test after gas supply After successful calibration, establish a Bluetooth connection, install the calibration cover, and test the gas concentration after gas supply for 1 minute. For installation of the calibration cover, refer to step 5. Supply the standard gas at 200-400 ml/min for 1 minute.
Page 90: Inspection Steps (Once A Year)
2 Battery Container Preventative Maintenance Manual 2.9.5 Inspection Steps (Once a year) Step 1 Conduct a visual inspection. Visually check detectors. figure 2-50 Smoke detector, temperature detector, combustible gas detector * The above picture is for reference only. The received products may be different! Visually inspect the input/output modules.
Page 91 Preventative Maintenance Manual 2 Battery Container figure 2-52 Sprinkler head * The above picture is for reference only. The received products may be different! Visually inspect fire suppression pipelines. figure 2-53 Firefighting pipelines * The above picture is for reference only. The received products may be different! If the above-mentioned equipment is found to be damaged or any status indicator light is abnormal, promptly request spare parts for replacement.
Page 92: Switch Gear
Switch Gear Inspection Checklist The inspection items for the S/G are listed in the following table. • The recommended maintenance intervals provided below should be adjusted based on the specific environmental conditions where the product is installed. • Factors such as the scale of the plant, installation location, and on-site environmental conditions will influence the maintenance intervals.
Page 93: Check Appearance
Preventative Maintenance Manual 3 Switch Gear Inspection Type Details interval Check cable connections looseness and check terminal screws Cable for tightness. Once a year connection Check cables damage, check particularly for cuts on the surface in contact with metal. Check if the mechanical operation of Component the load switches is normal.
Page 94: List Of Consumables
3 Switch Gear Preventative Maintenance Manual Quantity/ Description Name It is recommended to use a cloth or other cleaning tools. If it cannot be cleaned with water, use the following detergent. Alcohol or other non-corrosive • 97% alcohol. detergents • Non-corrosive detergents commonly used in the region.
Page 95: Inspection Steps (Once A Year)
Preventative Maintenance Manual 3 Switch Gear figure 3-1 Inspection procedures of appearance check 3.2.4 Inspection Steps (Once a year) Step 1 Inspect the S/G panel status and check if the exterior of the S/G is in good condition. To shut down the BLOCK, refer to "8.4.1 Power on/off via WEB"...
Page 96: Check System Status And Cleanliness
Check System Status and Cleanliness 3.3.1 Safety Precautions Please use tools such as dry paper towels to clean the circuit board and components. Sungrow is not responsible for any damage caused by using other tools. 3.3.2 Material Preparation 3.3.2.1 Tool Preparation...
Page 97: List Of Consumables
Preventative Maintenance Manual 3 Switch Gear Quantity/ Description Name Open-end/socket wrenches are Wrench recommended. Other lighting tools such as flashlights and Flashlight searchlights are recommended. 3.3.2.2 List of Consumables The following list is for reference only. If any of the consumables listed below are inconsistent with the accessories actually used on site, the latter should prevail.
Page 98 3 Switch Gear Preventative Maintenance Manual figure 3-3 Inspection procedures of system status and cleanliness (once a year) Once every two years The maintenance takes about 15min.
Page 99: Inspection Steps (Once A Year)
Preventative Maintenance Manual 3 Switch Gear figure 3-4 Inspection procedures of system status and cleanliness (once every two years) 3.3.4 Inspection Steps (Once a year) Step 1 Check the fan grille condition of the bottom heat exchanger. Maintenance personnel should wear safety helmets and gloves, and open the cabinet doors.
Page 100: Inspection Steps (Once Every Two Years)
3 Switch Gear Preventative Maintenance Manual Step 2 Check if there are any detached screws of the switch gear. To shut down the BLOCK, refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and visually check the screws inside the switch gear to determine if any are missing by comparing them with same models nearby.
Page 101: Check Cable Connections
Preventative Maintenance Manual 3 Switch Gear Step 2 Check the surrounding environment for humidity and dust. Please wear safety helmets and gloves, and open the cabinet doors. Place a hygrometer outside the S/G and check if the ambient humidity is between 0~95%.
Page 102: Material Preparation
3 Switch Gear Preventative Maintenance Manual • It is essential to check the polarity of all input cables to ensure that each input polarity is correct. • Do not pull cables or wires hard to avoid damaging their insulation performance. •...
Page 103: Inspection Procedures
Preventative Maintenance Manual 3 Switch Gear Is it included in the list of Name Material code delivered spare parts Battery-to-S/G J-T-000913 communication J-T-000914 cable Wire and cable J-D-000294 10AWG Screw locking plug G-C-000686 Self-locking nylon Y-G-000062 cable tie Heat shrinkable F-P-000062 bushing 3.4.3 Inspection Procedures...
Page 104: Inspection Steps (Once A Year)
3 Switch Gear Preventative Maintenance Manual 3.4.4 Inspection Steps (Once a year) Step 1 Check cable connections for looseness and check terminal screws for tightness. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the cabinet doors.
Page 105: Check Components
Preventative Maintenance Manual 3 Switch Gear Check Components 3.5.1 Safety Precautions Make ensure that AC/DC sides are not live before replacing the device. Please follow standardized operation when plugging and unplugging cables, and rough or violent operation are not be allowed. 3.5.2 Material Preparation 3.5.2.1 Tool Preparation When conducting the component inspection, to ensure the maintenance work proceeds...
Page 106: Inspection Steps (Once A Year)
3 Switch Gear Preventative Maintenance Manual figure 3-10 Inspection procedures of component maintenance 3.5.4 Inspection Steps (Once a year) Step 1 Check if the mechanical operation of the load switches is normal. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps.
Page 107 Preventative Maintenance Manual 3 Switch Gear Step 2 Check if the fan inside the S/G functions normally. Log into the BSC Web interface. Refer to "8.1.1 BSC Login Steps" for the specific steps. Click “Running info→Node info” to check for fault alarms of fans. * The above picture is for reference only.
Page 108: Communication Management Cabinet
Communication Management Cabinet Inspection Checklist The inspection items for the communication management cabinet (LC1000) are listed in the table below. • The recommended maintenance intervals provided below should be adjusted based on the specific environmental conditions where the product is installed. •...
Page 109 Preventative Maintenance Manual 4 Communication Management Cabinet Inspection Type Details interval Check for flammable materials around the cabinet. Check if soldering points between the cabinet and the foundation steel plates are solid, and check for signs of rust. Check if there is any damage, paint peeling, or oxidation on the cabinet enclosure.
Page 110 4 Communication Management Cabinet Preventative Maintenance Manual Inspection Type Details interval Check if the cable connections are loose, and re-tighten them according to the specified torque. Check cables for any damage, particularly for cuts on the surface in contact with metal. Cable Check if the cable layout complies with Once a year...
Page 111 Preventative Maintenance Manual 4 Communication Management Cabinet Inspection Type Details interval Check the operating status of cooling fan module, if it is blocked, and if there abnormal noises during operation. If necessary, clean the cooling modules, etc. with a vacuum cleaner.
Page 112: Check Appearance
4 Communication Management Cabinet Preventative Maintenance Manual Check Appearance 4.2.1 Safety Precautions • When handling flammable objects, maintenance personnel should wear PPE. PPE should comply with relevant national standards, including but not limited to safety helmets, safety gloves, protective clothing, etc. •...
Page 113: List Of Consumables
Preventative Maintenance Manual 4 Communication Management Cabinet Qty./pcs Name Notes If water alone does not suffice, use any of the following detergents. Alcohol or other non-corrosive • 97% alcohol. detergents • non-corrosive cleaning agent commonly used in the local area. Sandpaper Soft bristle brush Paint...
Page 114 4 Communication Management Cabinet Preventative Maintenance Manual figure 4-1 Inspection procedures of appearance check...
Page 115: Inspection Steps (Once A Year)
Preventative Maintenance Manual 4 Communication Management Cabinet 4.2.4 Inspection Steps (Once a year) Step 1 Check for flammable materials around the cabinet. Common flammable materials include but are not limited to linoleum, wood, paint, plastics, and decoration and fit-out materials. Wear protective gear such as safety helmets and protective clothing, and visually inspect the area around the cabinet for any flammable materials.
Page 116 4 Communication Management Cabinet Preventative Maintenance Manual Step 2 Check if soldering points between the cabinet and the foundation steel plates are solid, and check for signs of rust. To shut down the BLOCK, refer to "8.4.1 Power on/off via WEB" for the specific steps.
Page 117 Preventative Maintenance Manual 4 Communication Management Cabinet figure 4-4 Fixation with bolts * The above picture is for reference only. The received products may be different! Check the fixation points between the cabinet and the foundation steel plates for any signs of rust.
Page 118 4 Communication Management Cabinet Preventative Maintenance Manual Step 4 Check the cabinet door locks for smooth operation. If necessary, lubricate door locks, hinges, etc. properly. Wear safety gloves, manually open and close the outdoor cabinet doors to check the locks and hinges for smooth operation. figure 4-5 Door lock and hinge * The above picture is for reference only.
Page 119: Check System Status And Cleanliness
Preventative Maintenance Manual 4 Communication Management Cabinet Step 5 Check if sealing strips, etc. are securely attached. Properly maintained sealing strips are essential for preventing water ingress into the equipment. Inspect them carefully, and replace immediately if any sealing strips are found damaged. Wear safety gloves, open the outdoor cabinet doors, and check the sealing strips on each door for cracks, detachment, or severe wear.
Page 120: Material Preparation
4 Communication Management Cabinet Preventative Maintenance Manual 4.3.2 Material Preparation 4.3.2.1 Tool Preparation To ensure smooth maintenance during the system condition and cleaning check, it is recommended to prepare the following tools, which include, but are not limited to: Qty./pcs Name Note Safety helmet...
Page 121: Inspection Procedures
Preventative Maintenance Manual 4 Communication Management Cabinet Is it included in the list of delivered Name Material No. spare parts Standard spring washer S-Q-000069 Hexagon flange nut S-B-000085 Class A flat washer S-Q-000059 Sealing strip F-Q-000262 4.3.3 Inspection Procedures The inspection procedures of system status and cleanliness are shown in the figure below. Once a year The maintenance takes about 15min.
Page 122 4 Communication Management Cabinet Preventative Maintenance Manual figure 4-8 Inspection procedures of system status and cleanliness (once every two years)
Page 123: Inspection Steps (Once A Year)
Preventative Maintenance Manual 4 Communication Management Cabinet 4.3.4 Inspection Steps (Once a year) Step 1 Check if there are any internal foreign objects, dust and grime. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the cabinet doors.
Page 124 4 Communication Management Cabinet Preventative Maintenance Manual Step 2 Check the air inlets and outlets for blockages. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the cabinet doors.
Page 125 Preventative Maintenance Manual 4 Communication Management Cabinet Step 3 Check if any screw inside the cabinet is detached. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the cabinet doors.
Page 126 4 Communication Management Cabinet Preventative Maintenance Manual Step 4 Check if there is water ingress within the cabinet. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the cabinet doors.
Page 127: Inspection Steps (Once Every Two Years)
Preventative Maintenance Manual 4 Communication Management Cabinet 4.3.5 Inspection Steps (Once every two years) Step 1 Check if any internal equipment is damaged or deformed. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, open the cabinet doors, and them visually inspect internal devices.
Page 128 4 Communication Management Cabinet Preventative Maintenance Manual Step 2 Check for any abnormal noises during the operation of the internal equipment. This inspection is not recommended to be performed with the cabinet door open. The maintenance personnel should wear safety helmets and listen for any unusual noises in the vicinity of the cabinet (excluding wind noise or regular electrical current noise).
Page 129 Preventative Maintenance Manual 4 Communication Management Cabinet Step 3 Check if the temperatures inside the cabinet and on its enclosure are excessively high. As each device has different rated operational conditions, there is no uniform standard for judging temperature rise; therefore, measure and analyze the temperatures of multiple systems.
Page 130 4 Communication Management Cabinet Preventative Maintenance Manual The above component specifications are for reference; components vary in operating temperature, so please refer to the specific component specification sheets. Step 4 Check if the humidity inside the cabinet is within the normal range. Please wear safety helmets and gloves, and open the cabinet doors.
Page 131: Check Cable Connections
Preventative Maintenance Manual 4 Communication Management Cabinet Step 5 Check if there are any signs of oxidation or rust inside the cabinet. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, open the cabinet doors, and visually check if there are signs of rust or oxidation in it.
Page 132: Material Preparation
4 Communication Management Cabinet Preventative Maintenance Manual Please follow standardized operation when plugging and unplugging cables, and rough or violent operation are not be allowed. When rectifying cables, please comply with the relevant standards or specifications of the country/region where the project is located. 4.4.2 Material Preparation 4.4.2.1 Tool Preparation To ensure smooth maintenance during the cable connection inspection, it is recommended...
Page 133: Inspection Procedures
Preventative Maintenance Manual 4 Communication Management Cabinet Is it included in the list of Name Material No. delivered spare parts Power cable J-D-000515 Communication J-E-000029 cable Super category 6 J-E-000170 shielded cable Self-locking nylon Y-G-000062 cable tie Heat shrinkable F-P-000062 bushing Waterproof terminal F-E-000951...
Page 134: Inspection Steps (Once A Year)
4 Communication Management Cabinet Preventative Maintenance Manual 4.4.4 Inspection Steps (Once a year) Step 1 Check if the cable connections are loose, and re-tighten them according to the specified torque. Check cables for any damage, particularly for cuts on the surface in contact with metal.
Page 135 Preventative Maintenance Manual 4 Communication Management Cabinet Check for discharge or arcing in the power cables and communication cables in the cabinet while it is powered on. If there are any loose connections or abnormal discharge or arcing, immediately shut down the system for inspection.
Page 136 4 Communication Management Cabinet Preventative Maintenance Manual Step 2 Check if the cable layout complies with standards and are free from problems such as short circuits. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the cabinet doors.
Page 137: Check Grounding And Equipotential Connections
Preventative Maintenance Manual 4 Communication Management Cabinet Step 4 Check the insulation tape at cable connection terminal lugs for detachment. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the cabinet doors.
Page 138: List Of Consumables
4 Communication Management Cabinet Preventative Maintenance Manual Quantity/ Description Name Safety helmet Safety gloves Multimeter A Phillips screwdriver is recommended. Screwdriver Open-end/socket wrenches are Wrench recommended. Groundmeter 4.5.2.2 List of Consumables The following list is for reference only. If any of the consumables listed below are inconsistent with the accessories actually used on site, use the accessories actually used on site.
Page 139 Preventative Maintenance Manual 4 Communication Management Cabinet figure 4-22 Procedures of grounding and equipotential connection inspection...
Page 140: Inspection Steps (Once A Year)
4 Communication Management Cabinet Preventative Maintenance Manual 4.5.4 Inspection Steps (Once a year) Step 1 Check if the grounding connection is correct, and ensure the grounding resistance value does not exceed 4Ω. It is recommended to take measurements in different directions to improve the accuracy of the results.
Page 141 Preventative Maintenance Manual 4 Communication Management Cabinet Step 2 Check if internal equipotential connections in the cabinet are correct. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the cabinet doors.
Page 142: Check Components
4 Communication Management Cabinet Preventative Maintenance Manual Step 3 Check if the cable shielding layer is in good contact with the insulation sleeve, and ensure the grounding flat-rolled steel is properly secured. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps.
Page 143: List Of Consumables
Preventative Maintenance Manual 4 Communication Management Cabinet Qty./pcs Name Note Dust mask It is recommended to use an electric Screwdriver screwdriver. It is recommended to use an industrial Industrial vacuum vacuum cleaner with swivel and cleaner directional casters. It is recommended to use lighting tools Flashlight such as flashlights and searchlights.
Page 144: Inspection Procedures
4 Communication Management Cabinet Preventative Maintenance Manual 4.6.3 Inspection Procedures The inspection process of component maintenance is shown in the figure below. Once every six months The maintenance takes about 25min. figure 4-26 Inspection procedures of component maintenance (once every six months) Once a year The maintenance takes about 5min.
Page 145: Inspection Steps (Once Every Six Months)
Preventative Maintenance Manual 4 Communication Management Cabinet 4.6.4 Inspection Steps (Once every six months) Step 1 Check the temperature and dust accumulation of cooling fans. If necessary, clean the cooling modules, etc. with a vacuum cleaner. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB"...
Page 146 4 Communication Management Cabinet Preventative Maintenance Manual Step 2 Routinely check all metal elements for signs of rust. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the cabinet doors.
Page 147 Preventative Maintenance Manual 4 Communication Management Cabinet Step 3 Conduct annual inspection of contactors (auxiliary switches and microswitches) to ensure their smooth mechanical operation. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the cabinet doors.
Page 148 4 Communication Management Cabinet Preventative Maintenance Manual Step 5 Check if the UPS indicator lights function normally and if they indicate alarms. Shut down the device. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the cabinet doors.
Page 149: Inspection Steps (Once A Year)
Preventative Maintenance Manual 4 Communication Management Cabinet 4.6.5 Inspection Steps (Once a year) Step 1 Check if the SPDs and fuses are intact and operational. Log into the LC interface. For login steps, please refer to "8.1.2 LC Login Steps". Click and check for any lightning protection/fuse fault alarms.
Page 150: List Of Consumables
4 Communication Management Cabinet Preventative Maintenance Manual 4.7.2.2 List of Consumables The following list is for reference only. If any of the consumables listed below are inconsistent with the accessories actually used on site, the latter should prevail. Is it included in the list of Name Material code delivered spare parts...
Page 151: Inspection Steps (Once Every Six Months)
Preventative Maintenance Manual 4 Communication Management Cabinet 4.7.4 Inspection Steps (Once every six months) Step 1 Check the warning labels and other device labels on the equipment. If any of them are blurred or damaged, please replace them promptly. Visually check if the warning labels on the cabinet and internal equipment are clearly visible.
Page 152: Pcs
Inspection Checklist The inspection items for the PCS are listed in the table below. • The recommended maintenance intervals provided below should be adjusted based on the specific environmental conditions where the product is installed. • Factors such as the scale of the plant, installation location, and on-site environmental conditions will influence the maintenance intervals.
Page 153 Preventative Maintenance Manual 5 PCS Inspection Type Details interval Check if there are any internal foreign objects, dust and grime. Remove interior dust if necessary. (With a vacuum cleaner instead of a broom) Check if any air inlet or air outlet of the Once a year cabinet is blocked.
Page 154 5 PCS Preventative Maintenance Manual Inspection Type Details interval Check if the grounding connection is correct, and ensure the grounding resistance value does not exceed 4Ω. Grounding and Check if the equipotential bonding is equipotential Once a year correct inside the system. connection Check if the cable shielding layer is in check...
Page 155: Check Appearance
Preventative Maintenance Manual 5 PCS Inspection Type Details interval Save the operational data, parameters, and logs to the relevant files. Check if the software is the latest version and update it in a timely manner. Functional Once every six Safety function - Check if the check months emergency stop button is functioning...
Page 156: Material Preparation
5 PCS Preventative Maintenance Manual • The gas released by the rust remover is flammable and should be kept away from high temperatures, sparks, flames and places where static electricity may be generated. • Rust removers should be used in a well-ventilated environment. •...
Page 157: List Of Consumables
Preventative Maintenance Manual 5 PCS Quantity/ Description Name If it cannot be cleaned with water, use the following detergent. Alcohol or other non-corrosive • 97% alcohol. detergents • Non-corrosive detergents commonly used in the region. Sandpaper Soft brush Paint The colour number is RAL9003 Zinc-rich primer Lubricating grease It is recommended to use an industrial...
Page 158: Inspection Steps (Once A Year)
5 PCS Preventative Maintenance Manual figure 5-1 Inspection procedures of appearance check 5.2.4 Inspection Steps (Once a year) Step 1 Check for flammable materials around the cabinet. Common flammable materials include but are not limited to linoleum, wood, paint, plastics, and decoration and fit-out materials. Wear protective gear such as safety helmets and protective clothing, and visually inspect the area around the cabinet for any flammable materials.
Page 159 Preventative Maintenance Manual 5 PCS Step 2 Check if soldering points between the cabinet and the foundation steel plates are solid, and check for signs of rust. To shut down the BLOCK, refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and safety gloves, and check if the fixing points between the cabinet and the foundation steel plates are solid.
Page 160 5 PCS Preventative Maintenance Manual figure 5-4 Fixation with bolts * The above picture is for reference only. The received products may be different! Check the fixation points between the cabinet and the foundation steel plates for any signs of rust. If rust is detected, remove it using rust remover or sandpaper. Let the surface dry, and then apply paint with a soft bristle brush.
Page 161 Preventative Maintenance Manual 5 PCS Step 4 Check the cabinet door locks for smooth operation. If necessary, lubricate door locks, hinges, etc. properly. Wear safety gloves and manually open and close the cabinet door to check if the door lock and hinges open and close smoothly. figure 5-5 Door lock and hinge of the converter unit figure 5-6 Door lock of the ring main unit * The above pictures are for reference only.
Page 162: Check System Status And Cleanliness
5 PCS Preventative Maintenance Manual Step 5 Check if sealing strips, etc. are securely attached. Properly maintained sealing strips are essential for preventing water ingress into the cabinet. Inspect them carefully, and replace immediately if any sealing strips are found damaged. To shut down the BLOCK, refer to "8.4.1 Power on/off via WEB"...
Page 163: Material Preparation
Preventative Maintenance Manual 5 PCS • When performing cleaning tasks, direct washing with water is strictly prohibited. Use a vacuum cleaner for cleaning if necessary. • Avoid using cleaning agents to clean the devices in it or exposing the devices to harsh chemicals.
Page 164: List Of Consumables
5 PCS Preventative Maintenance Manual Quantity/ Description Name Open-end/socket wrenches are Wrench recommended. Other lighting tools such as flashlights and Flashlight searchlights are recommended. 5.3.2.2 List of Consumables The following list is for reference only. If the consumables in the list differ from the accessories actually used on site, the on-site components shall prevail.
Page 165 Preventative Maintenance Manual 5 PCS Once a year The maintenance takes about 15min. figure 5-9 Inspection procedures of system status and cleanliness (once a year) Once every two years The maintenance takes about 20min.
Page 166: Inspection Steps (Once Every Six Months)
5 PCS Preventative Maintenance Manual figure 5-10 Inspection procedures of system status and cleanliness (once every two years) 5.3.4 Inspection Steps (Once every six months) Step 1 Check if there are any foreign objects, dust, or dirt on the foundation. Visually check the foundation for foreign objects, dust and grime.
Page 167 Preventative Maintenance Manual 5 PCS Step 2 Check if there is dust or dirt on the mesh of the transformer compartment door and the air outlet mesh of the ring main unit. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps.
Page 168: Inspection Steps (Once A Year)
5 PCS Preventative Maintenance Manual 5.3.5 Inspection Steps (Once a year) Step 1 Check if there are any internal foreign objects, dust and grime. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the cabinet doors.
Page 169 Preventative Maintenance Manual 5 PCS Step 2 Check the air inlets and outlets for blockages. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the cabinet doors.
Page 170 5 PCS Preventative Maintenance Manual Step 3 Check if any screw inside the cabinet is detached. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the cabinet doors.
Page 171: Inspection Steps (Once Every Two Years)
Preventative Maintenance Manual 5 PCS 5.3.6 Inspection Steps (Once every two years) Step 1 Check if any internal equipment is damaged or deformed. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, open the cabinet doors, and them visually inspect internal devices.
Page 172 5 PCS Preventative Maintenance Manual Step 2 Check for any abnormal noises during the operation of the internal equipment. This inspection is not recommended to be performed with the cabinet door open. Maintenance personnel should wear safety helmets and listen near the outdoor cabinet to identify any abnormal sounds (excluding wind noise and regular electrical current noise).
Page 173 Preventative Maintenance Manual 5 PCS Step 3 Check if the temperatures inside the cabinet and on its enclosure are excessively high. • As each device has different rated operational conditions, there is no uniform standard for judging temperature rise; therefore, measure and analyze the temperatures of multiple systems.
Page 174 5 PCS Preventative Maintenance Manual figure 5-18 Temperature measurement * The above picture is for reference only. The received products may be different! If any abnormal temperature rise point is found, use a multimeter to measure the voltage or current at this point while the system is operational to determine if a short circuit is occurring.
Page 175 Preventative Maintenance Manual 5 PCS Step 4 Check if the humidity inside the cabinet is within the normal range. Please wear safety helmets and gloves, and open the cabinet doors. Use a hygrometer to check if the ambient humidity in the outdoor cabinet is between 0~95 % (non-condensing).
Page 176: Check Cable Connections
5 PCS Preventative Maintenance Manual Step 5 Check if there are any signs of oxidation or rust inside the cabinet. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, open the cabinet doors, and visually check if there are signs of rust or oxidation in it.
Page 177: Material Preparation
Preventative Maintenance Manual 5 PCS Please follow standardized operation when plugging and unplugging cables, and rough or violent operation are not be allowed. When rectifying cables, please comply with the relevant standards or specifications of the country/region where the project is located. 5.4.2 Material Preparation 5.4.2.1 Tool Preparation When conducting cable connection inspection, to ensure the maintenance work proceeds...
Page 178: Inspection Procedures
5 PCS Preventative Maintenance Manual Is it included in the ex- Name Material No. factory spare parts list? Cable assembly B-Q-003262 Self-locking nylon Y-G-000062 cable ties Heat shrinkable F-P-000111 tube Auxiliary B-Q-005676 components Transformer LV copper busbar B-J-014765 protective cover assembly Metal hose clamp F-C-031368...
Page 179: Inspection Steps (Once A Year)
Preventative Maintenance Manual 5 PCS 5.4.4 Inspection Steps (Once a year) Step 1 Check if the cable connections are loose, and re-tighten them according to the specified torque. Check cables for any damage, particularly for cuts on the surface in contact with metal.
Page 180 5 PCS Preventative Maintenance Manual Check for discharge or arcing in the power cables and communication cables in the cabinet while it is powered on. If there are any loose connections or abnormal discharge or arcing, immediately shut down the system for inspection. Please refer to "8.4.1 Power on/off via WEB"...
Page 181 Preventative Maintenance Manual 5 PCS Step 2 Check if the cable layout complies with standards and are free from problems such as short circuits. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the cabinet doors.
Page 182: Check Grounding And Equipotential Connections
5 PCS Preventative Maintenance Manual Step 4 Check the insulation tape at cable connection terminal lugs for detachment. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the cabinet doors.
Page 183: List Of Consumables
Preventative Maintenance Manual 5 PCS Quantity/ Description Name A Phillips screwdriver is recommended. Screwdriver Open-end/socket wrenches are Wrench recommended. Groundmeter 5.5.2.2 List of Consumables The following list is for reference only. If the consumables in the list differ from the accessories actually used on site, the on-site components shall prevail.
Page 184 5 PCS Preventative Maintenance Manual figure 5-26 Procedures of grounding and equipotential connection inspection...
Page 185: Inspection Steps (Once A Year)
Preventative Maintenance Manual 5 PCS 5.5.4 Inspection Steps (Once a year) Step 1 Check if the grounding connection is correct, and ensure the grounding resistance value does not exceed 4Ω. It is recommended to take measurements in different directions to improve the accuracy of the results.
Page 186: Check Components
5.6.1 Safety Precautions Please use tools such as dry paper towels to clean the circuit board and components. Sungrow is not responsible for any damage caused by using other tools. Please check the ventilation at the air inlet/outlet. Otherwise, if the module cannot...
Page 187: Material Preparation
Preventative Maintenance Manual 5 PCS 5.6.2 Material Preparation 5.6.2.1 Tool Preparation When conducting the component inspection, to ensure the maintenance work proceeds smoothly, it is recommended to prepare tools including but not limited to the following. Quantity/ Description Name Safety helmet Safety gloves Dust mask It is recommended to use dry cleaning...
Page 188: Inspection Procedures
5 PCS Preventative Maintenance Manual Is it included in the list of Name Material code delivered spare parts Fan guard E-W-000011 Fan wiring board F-C-014250 Lightning protection K-S-000207 module Screw locking plug G-C-000652 Screw locking socket G-C-000847 PCB solder terminal G-H-000075 Fuse K-T-000402...
Page 189: Inspection Steps (Once Every Six Months)
Preventative Maintenance Manual 5 PCS Once a year The maintenance takes about 5min. figure 5-30 Inspection procedures of component maintenance (once a year) 5.6.4 Inspection Steps (Once every six months) Step 1 Check circuit boards and components for any foreign objects, dust and grime. Shut down the BLOCK.
Page 190 5 PCS Preventative Maintenance Manual Step 2 Check cooling fans for abnormal temperature, or the presence of foreign objects, dust, and grime. Log into the Web interface. Refer to "8.1.3 Web login steps of PCS" for the login steps. Click to check for any fan fault alarms.
Page 191 Preventative Maintenance Manual 5 PCS Step 3 Routinely check all metal elements for signs of rust. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the cabinet doors.
Page 192 5 PCS Preventative Maintenance Manual Step 4 Conduct annual inspection of contactors (auxiliary switches and microswitches) to ensure their smooth mechanical operation. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the cabinet doors.
Page 193 • Check if the temperature sensor is operating normally; if any abnormalities are detected, please replace the temperature sensor. • If the fault is not caused by the foregoing reasons and still exists, please contact Sungrow Service. - - End...
Page 194: Inspection Steps (Once A Year)
5 PCS Preventative Maintenance Manual 5.6.5 Inspection Steps (Once a year) Step 1 Check if the SPDs and fuses are intact and operational. Shut down the BLOCK. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and safety gloves, and open the doors of the converter unit.
Page 195: Material Preparation
Preventative Maintenance Manual 5 PCS Before starting the system up, make sure the start/stop knob is in the "ON" state. When the start/stop knob is set to "OFF", the system cannot respond to the startup command. Differences exist among different versions of the software WEB interface. Images in this manual are for reference only.
Page 196: Inspection Procedures
5 PCS Preventative Maintenance Manual Is it included in the ex- Name Material No. factory spare parts list? L-E-000010 DC indicator L-E-000024 L-E-000025 Label components B-Q-003904 5.7.3 Inspection Procedures The inspection procedures of functional test are shown in the figure below. The maintenance takes approximately 20min.
Page 197: Inspection Steps (Once Every Six Months)
Preventative Maintenance Manual 5 PCS 5.7.4 Inspection Steps (Once every six months) Step 1 Save the operational data, parameters, and logs to the relevant files. Obtain the IP address of the corresponding device’s Web interface from the client side. Log into the Web IP, enter the login password pw1111. In the “Historical Data”...
Page 198 5 PCS Preventative Maintenance Manual Step 3 Safety function - Check if the emergency stop button is functioning correctly. Do not inspect the emergency stop button during high-power operation of the devices to avoid hardware damage. The maintenance personnel should wear a safety helmet and safety gloves; when the converter is in operation, press the emergency stop button, open the cabinet door and observe whether the DC/AC side switches are disconnected and whether the RMU is tripped.
Page 199 Preventative Maintenance Manual 5 PCS Step 4 Check the warning labels and other device labels on the equipment. If any of them are blurred or damaged, please replace them promptly. Check if the warning signs on the converter unit, transformer and its protective meshes, ring main unit, power distribution cabinet, and other equipment are clearly visible.
Page 200: Transformer
Transformer Warning! Before removing any cover, make sure that there is no voltage! Inspection Checklist Transformer inspection items are shown in the following table. • The following is the recommended maintenance cycle. The actual maintenance cycle should be adjusted based on the specific installation environment of the product.
Page 201: Check Appearance
Preventative Maintenance Manual 6 Transformer Inspection Type Details cycle Check the web interface for any fault alarms of the pressure relief valve, oil thermometer, gas relay, oil level gauge, etc. Check if the panel indications of Check pressure relief valve, oil thermometer, transformer gas relay and oil level gauge are within Once a year...
Page 202: List Of Consumables
6 Transformer Preventative Maintenance Manual Quantity/ Description Name A 3m A-shaped climb ladder is recommended (outdoor cabinet height: Climb ladder 2896mm, can be reasonably configured based on the height of the foundation). Safety harness Safety helmet Safety gloves Dust mask Protective clothing It is recommended to use metal surface rust remover, which can quickly remove...
Page 203: Inspection Process
Preventative Maintenance Manual 6 Transformer Is it included in the ex- Name Material No. factory spare parts list? Sealing strip Warning labels on the machine Sealing washer Insulating spacer Insulation sleeve Backup fuse Insert fuse Bolt Washer 6.2.3 Inspection Process The appearance inspection process is shown in the figure below, and the maintenance takes approximately 5min.
Page 204 ① Visually check if the screws at the cover plate are missing. If so, please contact Sungrow in time. ② Use a wrench or screwdriver to check if the screws are loose. If so, please tighten the screws in time.
Page 205: Check System Status And Cleanliness
Preventative Maintenance Manual 6 Transformer Check System Status and Cleanliness 6.3.1 Safety Precautions • When checking if the equipment has unusual noise, it is not recommended to open the cabinet door for operation. • If you need to open the cabinet door to check for unusual noise, please shut down the system before operating.
Page 206: Inspection Process
6 Transformer Preventative Maintenance Manual 6.3.3 Inspection Process The inspection process of system status and cleanliness is shown in the figure below. Once every six months The maintenance takes approximately 10min. figure 6-3 System status and cleaning inspection process (once every six months) Once a year The maintenance takes approximately 10min.
Page 207: Inspection Steps (Once Every Six Months)
Preventative Maintenance Manual 6 Transformer figure 6-4 System status and cleaning inspection process (once every year) 6.3.4 Inspection Steps (Once every six months) The following inspection operations only require visual inspection of the transformer, and there is no need to turn off the power of the equipment. Step 1 Check if there is any unusual noise from the transformer during operation.
Page 208 In case of oil leakage, promptly take photographs to document the oil leakage, and contact Sungrow. - - End...
Page 209: Inspection Steps (Once A Year)
Preventative Maintenance Manual 6 Transformer 6.3.5 Inspection Steps (Once a year) Step 1 Check if there is any water leakage in the transformer. Shut down the device. Refer to "8.4.1 Power on/off via WEB" for the specific steps. Maintenance personnel should wear safety helmets and gloves, and open the cabinet doors.
Page 210: Material Preparation
6 Transformer Preventative Maintenance Manual Please follow standardized operation when plugging and unplugging cables, and rough or violent operation are not be allowed. When rectifying cables, please comply with the relevant standards or specifications of the country/region where the project is located. 6.4.2 Material Preparation 6.4.2.1 Tool Preparation When conducting cable connection inspection, to ensure the maintenance work proceeds...
Page 211 Preventative Maintenance Manual 6 Transformer 6.4.3 Inspection Process The inspection process of cable connection is shown in the figure below, and the maintenance takes approximately 10min. figure 6-6 Cable connection inspection process...
Page 212 6 Transformer Preventative Maintenance Manual 6.4.4 Inspection Steps (Once a year) Step 1 Check electrical connections. Shut down the equipment. Open the terminal box of the transformer and check if the wiring between the terminal block on the SCU and the terminal block of the transformer is intact. Open the door of the HV cable room of the transformer and check if the cable head (as shown in Figure A) connection is normal and not skewed, if the cable clamp (as shown in Figure B below) can securely grip the cable (as shown in Figure C below), and if the...
Page 213 Preventative Maintenance Manual 6 Transformer 6.5.2 Material Preparation 6.5.2.1 Tool Preparation When conducting the transformer protection status inspection, to ensure the maintenance work proceeds smoothly, it is recommended to prepare tools including but not limited to the following. Quantity/ Description Name Safety helmet Safety gloves...
Page 214 6 Transformer Preventative Maintenance Manual figure 6-8 Transformer protection status inspection process...
Page 215 Preventative Maintenance Manual 6 Transformer 6.5.4 Inspection Steps (Once a year) Step 1 Check the web interface for any fault alarms of the pressure relief valve, oil thermometer, gas relay, oil level gauge, etc. Log into the LC Web interface. Refer to "8.1.2 LC Login Steps"...
Page 216 When the pressure inside the tank decreases, the pressure relief valve will automatically close to keep the tank sealed. If abnormalities are observed, please contact a field service engineer from Sungrow for resolution. figure 6-9 Pressure relief valve The value indicated by transformer oil thermometer should be close to the ambient temperature.
Page 217 If the above situation occurs, please take a photo and contact Sungrow. figure 6-12 Oil level gauge and oil level curve sign Step 3 Check if the transformer breather is discolored.
Page 218 If the above situation occurs, please take a photo and contact Sungrow. figure 6-14 Oil thermometer - - End...
Page 219 Preventative Maintenance Manual 6 Transformer Check Grounding Status 6.6.1 Safety Precautions The grounding methods must comply with the standards and regulations of the installation location. 6.6.2 Material Preparation 6.6.2.1 Tool Preparation When conducting the grounding inspection, to ensure the maintenance work proceeds smoothly, it is recommended to prepare tools including but not limited to the following.
Page 220 6 Transformer Preventative Maintenance Manual figure 6-15 Transformer grounding status inspection process 6.6.4 Inspection Steps (Once a year) The ratio test, insulation resistance test of the transformer, and insulation resistance test of the protection device connections should all be performed with the equipment de-energized and the high and low voltage sides disconnected! For the specific test, please contact a third-party professional testing agency for an inspection.
Page 221 Preventative Maintenance Manual 6 Transformer 6.7.2.2 List of Consumables The following list is for reference only. If the consumables in the list differ from the accessories actually used on site, the on-site components shall prevail. Is it included in the ex- Name Material No.
Page 222 6 Transformer Preventative Maintenance Manual Step 2 Click “Running info→Node info” to check if there is any fault alarms of the pressure relief valve, thermometer, gas relay, etc. * The above picture is for reference only. The received products may be different! Step 3 In case of the above alarms, shut down the transformer, troubleshoot each specific fault, and address them accordingly.
Page 223 Ring Main Unit Inspection Checklist RMU inspection items are shown in the following table. • The following is the recommended maintenance cycle. The actual maintenance cycle should be adjusted based on the specific installation environment of the product. • Factors such as the scale of the power plant, installation location, and site environment can all affect the maintenance cycle.
Page 224 7 Ring Main Unit Preventative Maintenance Manual Inspection Type Details cycle Confirm whether indicators, instruments, and signals are normal. Lubricate the transmission parts. All components should be intact, with no visible discharge marks or damage. There should noticeable overheating at the connection contact surfaces.
Page 225 Preventative Maintenance Manual 7 Ring Main Unit Check the Cabinet Body 7.2.1 Safety Precautions • When performing cleaning tasks, direct washing with water is strictly prohibited. Use a vacuum cleaner for cleaning if necessary. • Avoid using cleaning agents to clean the devices in it or exposing the devices to harsh chemicals.
Page 226 7 Ring Main Unit Preventative Maintenance Manual Is it included in the ex- Name Material No. factory spare parts list? Sealing strip F-EA-00034 Warning labels on F-GC-00723 the machine Montmorillonite Y-G-000049 desiccant 7.2.3 Inspection Process The cabinet inspection process is shown in the figure below, and the maintenance takes approximately 10min.
Page 227 Preventative Maintenance Manual 7 Ring Main Unit 7.2.4 Inspection Steps (Once a year) Step 1 Disconnect the power and check for dust accumulation inside, as well as for any water stains or condensation. Before performing maintenance, please first disconnect the grid-side switch; otherwise, the upper part of the circuit breaker may still be live with high voltage! Power off the complete machine to ensure that the ring main unit is not energized.
Page 228: Tool Preparation
7 Ring Main Unit Preventative Maintenance Manual • It is essential to check the polarity of all input cables to ensure that each input polarity is correct. • Do not pull cables or wires hard to avoid damaging their insulation performance.
Page 229: List Of Consumables
Preventative Maintenance Manual 7 Ring Main Unit Quantity/ Description Name Open-end/socket wrenches are Wrench recommended. Other lighting tools such as flashlights and Flashlight searchlights are recommended. 7.3.2.2 List of Consumables The following list is for reference only. If the consumables in the list differ from the accessories actually used on site, the on-site components shall prevail.
Page 230 7 Ring Main Unit Preventative Maintenance Manual figure 7-2 Inspection procedures of cable connections (once every six months) Once a year The maintenance takes approximately 10min.
Page 231: Inspection Steps (Once Every Six Months)
Preventative Maintenance Manual 7 Ring Main Unit figure 7-3 Inspection procedures of cable connections (once a year) 7.3.4 Inspection Steps (Once every six months) Step 1 Check if the RMU grounded well and reliably. Use the appropriate wrench or screwdriver to check the grounding wire fixing screw for any looseness.
Page 232 7 Ring Main Unit Preventative Maintenance Manual figure 7-4 Ground the shield layer and semiconductor layer Step 2 Check the high-voltage cable, and check if there is any aging, damage, or discharge phenomenon in the cable head, and there is any unusual sound. Shut down the inverter.
Page 233 Preventative Maintenance Manual 7 Ring Main Unit figure 7-5 Ring main unit cable room After completing the inspection, close the cabinet door. Step 3 Check if the power supply to the HV switch operating mechanism is normal. Shut down the BLOCK. Maintenance personnel should wear safety helmets, safety gloves and protective clothing, and open the HV room door.
Page 234: Inspection Steps (Once A Year)
7 Ring Main Unit Preventative Maintenance Manual 7.3.5 Inspection Steps (Once a year) Step 1 Check the fasteners at each connection point, and tighten them according to the specified torque. Open the door of the HV cable room of the ring main unit and check if the cable head (as shown in Figure A) connection is normal and not skewed, if the cable clamp (as shown in Figure B below) can securely grip the cable (as shown in Figure C below), and if the bolts are tightened and there is no looseness.
Page 235 Preventative Maintenance Manual 7 Ring Main Unit Step 2 Check the contact condition of the contacts. Open the LV box at the top of the ring main unit. ① Check if there are any loose or disconnected cable connections on the back of the relay protection system.
Page 236: Check Components
7 Ring Main Unit Preventative Maintenance Manual Check Components 7.4.1 Safety Precautions Danger! High voltage! Danger! Electric shock! • Do no touch the live parts of the product! • Please make sure that the AC/DC sides are not live before inspection. •...
Page 237: List Of Consumables
Preventative Maintenance Manual 7 Ring Main Unit 7.4.2.2 List of Consumables The following list is for reference only. If the consumables in the list differ from the accessories actually used on site, the on-site components shall prevail. Is it included in the ex- Name Material No.
Page 238: Inspection Steps (Once A Year)
7 Ring Main Unit Preventative Maintenance Manual figure 7-9 Inspection procedures of component maintenance 7.4.4 Inspection Steps (Once a year) Step 1 Confirm whether the indicators, instruments, and signals are normal. Open the door of the ring main unit, and maintenance personnel should wear safety helmets and gloves.
Page 239 Preventative Maintenance Manual 7 Ring Main Unit Step 2 Lubricate the transmission parts. Open the door of the ring main unit, and maintenance personnel should wear safety helmets and gloves to visually check the transmission components. If the transmission components exhibit jerking, jamming, or unusual noises, stop the machine and inspect the jammed area.
Page 240: Check The Switch Function
7 Ring Main Unit Preventative Maintenance Manual Step 5 The anti-misoperation locking device of the isolator switch should be in good condition, and there should be no damage to the electromagnetic lock and mechanism lock. figure 7-10 Anti-misoperation locking device Confirm the power outage schedule and ensure that the ring main unit has been de- energized.
Page 241: List Of Consumables
Preventative Maintenance Manual 7 Ring Main Unit Quantity/ Description Name Safety helmet Safety gloves Multimeter A Phillips screwdriver is recommended. Screwdriver Open-end/socket wrenches are Wrench recommended. 7.5.2.2 List of Consumables The following list is for reference only. If the consumables in the list differ from the accessories actually used on site, the on-site components shall prevail.
Page 242: Inspection Steps (Once A Year)
7 Ring Main Unit Preventative Maintenance Manual figure 7-11 Switch function inspection process 7.5.4 Inspection Steps (Once a year) Before performing maintenance, ensure that the grounding switches in each cabinet are closed. Check if the functions of the grounding switch and load switch of the ring main unit are normal.
Page 243: Check The Relay Protection Function (Optional)
Preventative Maintenance Manual 7 Ring Main Unit Step 4 If the RMU grounding switch can be closed. Refer to the figure below for specific switch positions - - End Check the Relay Protection Function (Optional) 7.6.1 Safety Precautions The relay protection device has been validated according to the commissioning instructions before leaving the factory.
Page 244: List Of Consumables
7 Ring Main Unit Preventative Maintenance Manual Quantity/ Description Name Safety harness Multimeter 7.6.2.2 List of Consumables The following list is for reference only. If the consumables in the list differ from the accessories actually used on site, the on-site components shall prevail. Name Material No.
Page 245 The relay protection device has been validated according to the commissioning instructions before leaving the factory. Step 1 Check if the real-time data displayed by the protection relay device is normal. Step 2 If the real-time data displayed is abnormal, please contact Sungrow in time. - - End...
Page 246: Appendix
Step 3 Enter the username and password, and click Login. In the system, there are two types of users: operator and admin. Passwords can be obtained from the SUNGROW. Step 4 Select the desired language on the upper righter corner of the interface.
Page 247: Lc Login Steps
Step 3 Enter the username and password, and click Login. In the system, there are two types of users: operator and admin. Passwords can be obtained from the SUNGROW. Step 4 Select the desired language on the upper righter corner of the interface.
Page 248: Prepare Cables
8 Appendix Preventative Maintenance Manual Step 2 Configure the IP of the PC and the IP of the ETH2 port with the same network segment. The default IP address of the ETH2 port is 192.168.13.127. The PC can be configured with an IP of 192.168.13.X and a subnet mask of 255.255.255.0.
Page 249 • Select communication cables equipped with corresponding shielding protection features according to the requirements of SUNGROW. • Secure the power cables and the communication cables separately. Ensure a minimum space of 10cm between the lines of strong and weak electricity to avoid electromagnetic interference.
Page 250: Tightening Torques
8 Appendix Preventative Maintenance Manual Tightening Torques To avoid poor contact caused by the loosening of copper cable lugs due to stress, and to prevent heat or even fire due to increased contact resistance, make sure to tighten the screws on the cable lugs at the recommended torques: Bolt Torque(N·m) Bolt...
Page 251 Preventative Maintenance Manual 8 Appendix Step 2 Power off. Click “Running info→Summary info”, enter the following interface; click OFF to control the whole BLOCK to shut down. figure 8-1 LC shutdown interface To shut down the whole BLOCK, refer to "8.4.3 Planned Shutdown"...
Page 252: Power-Up Steps
8 Appendix Preventative Maintenance Manual 8.4.2 Power-up Steps The power-up steps in this manual are for reference only. The steps for actual projects may vary! Step 1 Power on the ESS auxiliary power supply circuit (BCP). Turn on the DC load switch (SMPS DC SUPPLY). Turn on the power supply switch QF1 for the 400Vac power supply (AC MAIN SWITCH).
Page 253 Preventative Maintenance Manual 8 Appendix Step 3 Power up the PCS. Power up the ring main unit. Unit C operation steps Ensure proper coordination between switches at this level and those at the next level. Before power supply to this level, make sure the grounding switch of the next level is turned off.
Page 254 8 Appendix Preventative Maintenance Manual i. Confirm that the PCS DC load switch QS1 and AC circuit breaker QF1 are disconnected. ii. Close the internal power supply switch Q3 or the external power supply switch Q2 according to the actual configuration on site.Under the default internal power supply condition, Q3 and Q1 should be closed, and Q2 should be open.
Page 255: Planned Shutdown
Preventative Maintenance Manual 8 Appendix • SC4000UD-MV: 1300V - 1500V iv. When the PCS control circuit is operating normally, wait for the POWER indicator light in the monitoring window to turn on. Refer to the step "8.1.3 Web login steps of PCS"...
Page 256 8 Appendix Preventative Maintenance Manual table 8-1 Cleaning Tools Item Cleaning cloth Water Alcohol or other non-corrosive detergents Step 1 Wet the cleaning cloth (or other scrubbing tools) with water, and scrub the dirty parts on the surface. Step 2 If the dirt cannot be cleaned with water, scrub with 97% alcohol till the surface is acceptable. (Or try to use non-corrosive detergents that are generally used locally.) - - End 8.5.2 Finish Paint Repair...
Page 257 Preventative Maintenance Manual 8 Appendix • Confirm with SUNGROW before using paints of other brands or models. • When using a two-component paint, first thoroughly agitate each component individually, and then mix them in the specified proportions for stirring. •...
Page 258 8 Appendix Preventative Maintenance Manual Step 4 Repair the finish paint. Prepare the finish paint with the same color as the appearance. Common finish paint colors RAL7035 (Streamer RAL7016 (Dolphin RAL9003 (White) Grey) Grey) Mix the finish paint according to the paint model and the requirements of "table 8-2 Finish Paint Selection and Mixing".
Page 259 • Use primers and finish paints from the same manufacturer. • Confirm with SUNGROW before using any paint from a different manufacturer. • When using a two-component paint, first thoroughly agitate each component individually, and then mix them in the specified proportions for stirring.
Page 260 8 Appendix Preventative Maintenance Manual Item Brushes with different sizes Grinder (conical and cylindrical polishing heads) Wall putty Finish coat Primer Film thickness meter Environment Requirements • Ambient temperature: 5℃–40℃ • Base material temperature: 5℃–60℃ • Relative humidity: 10%RH–85%RH Repair Steps Step 1 Use a grinder or abrasive paper to smooth uneven areas on the surface, achieving a smooth finish with a metallic luster.
Page 261 Preventative Maintenance Manual 8 Appendix Step 5 Repair the primer. Prepare the primer with the same color as the appearance. Common finish paint colors RAL7035 (Streamer RAL7016 (Dolphin RAL9003 (White) Grey) Grey) Mix the primer according to the paint model and the requirements of "table 8-4 Primer and Finish Paint Selection and Mixing".
Page 262 Disconnect unnecessary equipment from The UPS appears to be the UPS to eliminate overload problems. overloaded. The UPS detects a high DC Please contact Sungrow. voltage. The UPS detects a low DC Please contact Sungrow. voltage. Please contact Sungrow.
Page 263 8 Appendix Display Descriptions Solutions code Battery voltage is too high. Please contact Sungrow. Please contact Sungrow. EEPROM data error. Disconnect unnecessary equipment from the UPS to reduce the load, ensure that The temperature of the unit the ambient temperature is within limits, exceeds the set limit.
Page 264 8 Appendix Preventative Maintenance Manual Step 2 Select the sensor that needs to be calibrated based on the SN.
Page 265 Preventative Maintenance Manual 8 Appendix Step 3 Click the Scan QR code button.
Page 266 8 Appendix Preventative Maintenance Manual Step 4 Scan the QR code on the side of the detector.
Page 267 Preventative Maintenance Manual 8 Appendix Step 5 Click Confirm Detector.
Page 268 8 Appendix Preventative Maintenance Manual Step 6 The interface below indicates that the phone has been connected to the combustible gas detector. - - End Abbreviations Complete designation Abbreviations Battery Connection Panel BM (PACK) Battery Module BC (RACK) Battery Cluster Battery System Controller Energy Storage System Fire Suppression System...
Page 269: Quality Assurance
• The customer shall give SUNGROW a reasonable period to repair the faulty device. Exclusion of Liability In the following circumstances, SUNGROW has the right to refuse to honor the quality guarantee: • The free warranty period for the whole machine/components has expired.
Page 270: Contact Information
8 Appendix Preventative Maintenance Manual 8.10 Contact Information In case of questions about this product, please contact us. We need the following information to provide you the best assistance: • Model of the device • Serial number of the device •...
Page 271 Sungrow Power Supply Co., Ltd. www.sungrowpower.com...

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