Sungrow PowerTitan Series User guide

PowerTitan-
ST2752UXBattery Energy Storage
SystemSystem ManualST2752UX-
SEN-Ver22-202303
System Manual
Battery Energy Storage System
PowerTitan-ST2752UX
ST2752UX-SEN-Ver22-202303

I
All Rights Reserved
All Rights Reserved
No part of this document can be reproduced in any form or by any means without the prior
written permission of SUNGROW ENERGY STORAGE TECHNOLOGY CO., LTD (-
hereinafter "SUNGROW").
Trademarks
and other Sungrow trademarks used in this manual are owned by
SUNGROW.
All other trademarks or registered trademarks mentioned in this manual are owned by their
respective owners.
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
compromise the original program design of the software developed by SUNGROW.

II
About This Manual
This manual describes the transportation and storage, mechanical installation, electrical
connection, power-on and power-off operation, troubleshooting, and maintenance of the
BESS.
Target Group
This manual is for operators of the power storage plant and qualified technical personnel.
The BESS must and can only be installed by professional technicians who meet the
following requirements:
• Has been trained
• Read this manual thoroughly and understand the safety instructions related to
operations
• Be familiar with local standards and relevant safety regulations of electrical systems
How to Use This Manual
Please read this manual carefully before using the product and keep it properly at a place
for easy access.
In order to provide customers with the best usage experience, the products and product
manuals are always in the process of improvement and upgrade. If the manual received is
slightly inconsistent with the product, it may be a result of product version upgrade, and the
actual product shall prevail.
Contents of the manual may be updated and amended continuously, so it is possible that
there may be some errors or slight inconsistency with the actual product. Please refer to the
actual product purchased, and the latest manual can be obtained from support.
sungrowpower.com or sales channels.
The figures in this manual are for reference only. The actual product received may differ.
Symbol Explanations
To ensure the safety of the users and their properties when they use the product and to
make sure that the product is used in an optimal and efficient manner, this manual provides
users with the relevant safety information highlighted by the following symbols.
Below is a list of symbols that are used in this manual. Review them carefully to make better
use of this manual.
Indicates an imminently hazardous situation which, if not avoided, will result in
death or serious injury.
Indicates a moderately hazardous situation which, if not avoided, will result in
death or serious injury.

III
Indicates a slightly hazardous situation which, if not avoided, may result in minor
or moderate injury.
Indicates a potential hazard which, if not avoided, will result in device malfunction
or property damage.
“NOTE” indicates additional information, emphasized contents or tips that may be
helpful, e.g., to help you solve problems or save time.
Symbol on Products
Always note hazard warnings on the machine body, including:
Marks Explanation
High voltage inside! Risk of electric shock by touching it!
This symbol indicates a protective ground terminal which needs to
be firmly grounded to ensure the safety of operators.
Read the instructions before performing any operation on the
product.
Live parts! Do not touch them until 5 minutes after disconnection
from the power sources.
Pay attention to the danger. Do not operate this product in the live
status!
Pay attention to heavy objects. Lifting of heavy objects may lead to
back injuries. Please lift heavy objects with appropriate tools.
Pay attention to explosion.
Pay attention to corrosion.
Do not dispose of this product as household waste.
No fire.
There should be a medical center nearby.

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Marks Explanation
In case of contact with eyes, rinse the eyes immediately with running
water or normal saline; and seek medical help in time.
It is required to wear goggles.
Abbreviations
Complete designation Abbreviations
Battery Energy Storage System BESS
Energy Storage System ESS
Battery Connection Panel BCP
Battery Supply Panel BSP
Power Conversion System PCS
DC/DC Converter DC/DC
Fire Suppression System FSS
Heating, ventilating and air conditioning HVAC
SCADA (Supervisory Control And Data
Acquisition) System SCADA System
Liquid Cooling System LCS
Local Controller LC
Energy Management System EMS
Switching Mode Power Supply SMPS
Battery Module BM (also referred to as PACK)
Battery Cluster BC (also referred to as RACK)
Battery Management Unit BMU
Battery Cluster Management Unit BCMU (collectively referred to as CMU)
Battery System Management Unit BSMU (collectively referred to as SMU)
Battery Management System BMS
Switch Gear S/G
State Of Charge SOC
State Of Energy SOE
State Of Health SOH
State Of Safety SOS
Unless otherwise specified, devices in this manual are referred to as the abbreviations
above.

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Contents
All Rights Reserved .....................................................................................................I
About This Manual......................................................................................................II
1 Safety Precautions ...........................................................................................1
1.1 Personnel Requirements.................................................................................1
1.2 Electrical Safety .............................................................................................1
1.3 Battery Safety ................................................................................................2
1.4 Hoisting and Transportation.............................................................................3
1.5 Installation and Wiring.....................................................................................3
1.6 Operation and Maintenance ............................................................................4
2 Product Description ..........................................................................................5
2.1 Product Introduction........................................................................................5
2.2 External Design..............................................................................................5
2.2.1 Container Appearance...........................................................................5
2.2.2 Mechanical Parameters.........................................................................7
2.2.3 Ventilation Design .................................................................................7
2.3 Internal Design...............................................................................................8
2.3.1 Internal Equipment................................................................................8
2.3.2 DC/DC .................................................................................................9
2.3.3 Battery Introduction .............................................................................10
3 Transport and Storage ...................................................................................14
3.1 Precautions..................................................................................................14
3.2 Transport Methods .......................................................................................14
3.3 Crating Before Transport...............................................................................14
3.4 Requirements for Transportation....................................................................17
3.5 Unpacking on Arrival.....................................................................................20
3.6 Storage Requirements ..................................................................................22
4 Mechanical Installation ..................................................................................24
4.1 Inspection Before Installation.........................................................................24
4.1.1 Deliverables Inspection .......................................................................24
4.1.2 Product Inspection ..............................................................................24
4.2 Installation Environment Requirements ..........................................................24

VI
4.2.1 Installation Site Requirement ...............................................................24
4.2.2 Foundation Requirements....................................................................25
4.2.3 Installation Spacing Requirement .........................................................26
4.3 Hoisting and Fixing .......................................................................................27
4.3.1 Lifting Precautions ..............................................................................27
4.3.2 Lifting .................................................................................................28
4.3.3 Fixed Installation.................................................................................30
4.3.4 Film Removal......................................................................................32
5 Electrical Connection .....................................................................................34
5.1 Precautions..................................................................................................34
5.2 Overview of Wiring Area................................................................................34
5.3 Preparation Before Wiring .............................................................................36
5.3.1 Preparing Installation Tools ..................................................................36
5.3.2 Opening the Container Door and Cabinet Door......................................37
5.3.3 Preparing Cables ................................................................................38
5.3.4 Copper Wire Connection......................................................................39
5.3.5 Cable Entry Design .............................................................................39
5.4 Ground Connection ......................................................................................40
5.5 DC Output Port Connection ...........................................................................42
5.6 Auxiliary Power Supply Port Connection.........................................................42
5.7 Ethernet Communication Port Connection ......................................................44
5.8 Post-wiring Operations..................................................................................44
6 Battery Connection ........................................................................................46
6.1 Precautions..................................................................................................46
6.2 Cable Connection.........................................................................................47
7 Powering up and Shutdown ..........................................................................49
7.1 Power-on Operation......................................................................................49
7.1.1 Inspection Before Powering up.............................................................49
7.1.2 Powering on Steps ..............................................................................49
7.2 Shutdown ....................................................................................................50
7.2.1 Planned Powering off ..........................................................................50
7.2.2 Unplanned (Emergency) Shutdown ......................................................51
8 Fire Suppression ............................................................................................52
8.1 General Rules ..............................................................................................52
8.2 Fire Suppression Equipment .........................................................................52
8.3 Exhaust System ...........................................................................................53

VII
8.4 Water Fire Suppression System.....................................................................54
8.5 Aerosol Fire Suppression System ..................................................................55
9 Troubleshooting ..............................................................................................56
10 Routine Maintenance ..................................................................................57
10.1 Precautions Before Maintenance .................................................................57
10.2 Maintenance Item and Period ......................................................................58
10.2.1 Maintenance (Every two years) ..........................................................58
10.2.2 Maintenance (Once a year) ................................................................58
10.2.3 Maintenance (Every half a year to once a year) ...................................59
10.3 Maintenance of Liquid Cooling System ......................................................... 60
10.4 Maintenance of DC/DC ...............................................................................62
10.5 Container Maintenance ...............................................................................63
10.5.1 Cleaning Container Appearance.........................................................63
10.5.2 Checking Door Locks and Hinges .......................................................67
10.5.3 Checking Sealing Strips.....................................................................67
10.6 Battery Maintenance...................................................................................67
10.6.1 Regular Maintenance and Maintenance Cycle ..................................... 67
10.6.2 Maintenance Precautions ..................................................................70
10.6.3 Maintenance.....................................................................................70
10.7 Coolant Replacement .................................................................................72
11 Appendix ........................................................................................................73
11.1 System Parameters ....................................................................................73
11.2 Tightening Torques .....................................................................................77
11.3 Quality Assurance.......................................................................................77
11.4 Contact Information.....................................................................................78