Sungrow SC1200UD-US User manual

SSCC11220000UUDD--UUSS//SSCC11337755UUDD--UUSS//
SSCC11557755UUDD--UUSS//SSCC11772255UUDD--
UUSSPPoowweerr CCoonnvveerrssiioonn SSyysstteemm
((PPCCSS))IInnssttaallllaattiioonn MMaannuuaall
SSCC11220000__11337755__11557755__11772255UUDD--
UUSS--IIEENN--VVeerr1133--220022110044
SC1200_1375_1575_1725UD-US-IEN-Ver13-202104
SC1200UD-US/SC1375UD-US/
SC1575UD-US/SC1725UD-US
PPoowweerr CCoonnvveerrssiioonn SSyysstteemm ((PPCCSS))
IInnssttaallllaattiioonn MMaannuuaall

I
CCoonntteennttss
1 About This Manual ....................................................................................... 1
1.1 Validity ......................................................................................................... 1
1.2 Brief Introduction.......................................................................................... 1
1.3 Target Group................................................................................................ 2
1.4 How to Use This Manual............................................................................... 2
1.5 Symbols Explanation.................................................................................... 2
2 Safety Instructions ...................................................................................... 4
2.1 Intended Usage............................................................................................ 4
2.2 Important Safety Instructions........................................................................ 5
2.2.1 Manuals ............................................................................................. 6
2.2.2 Personnel ........................................................................................... 6
2.2.3 Markings on the PCS .......................................................................... 6
2.2.4 Safety Warning Signs ......................................................................... 7
2.2.5 Emergency Escape Route .................................................................. 7
2.2.6 Storage Battery Protection .................................................................. 7
2.2.7 Device Installation............................................................................... 7
2.2.8 Electrical Connection.......................................................................... 8
2.2.9 Measuring Instrument......................................................................... 9
2.2.10 Volt-free Operations ......................................................................... 9
2.2.11 ESD Protection ................................................................................. 9
2.2.12 Moisture protection........................................................................... 9
2.2.13 Disposal of Waste........................................................................... 10
2.2.14 Others ............................................................................................ 10
3 Delivery ......................................................................................................... 11
3.1 Scope of Delivery....................................................................................... 11
3.2 Identifying PCS........................................................................................... 11
3.2.1 Appearance...................................................................................... 12
3.2.2 Nameplate ....................................................................................... 13
3.3 Checking for Transport Damage................................................................. 13
3.3.1 Checking the Package...................................................................... 13
3.3.2 Checking the PCS............................................................................. 14

II
3.4 Storage...................................................................................................... 14
4 Product Description .................................................................................. 15
4.1 Mechanical Data........................................................................................ 15
4.2 Ventilation Design....................................................................................... 15
4.3 Cable Inlet/Outlet Design............................................................................ 16
5 Installation Design ..................................................................................... 17
5.1 The Solution with Optional Devices ............................................................. 17
5.2 Installation Site Selection............................................................................ 17
5.2.1 Basic Requirements.......................................................................... 17
5.2.2 Installation Environment Design ........................................................ 17
5.2.3 Installation foundation and space requirements ................................ 18
5.3 Installation environment design .................................................................. 18
5.3.1 Temperature requirements ............................................................... 18
5.3.2 Floor................................................................................................. 18
5.3.3 Clearance Space.............................................................................. 19
5.3.4 Cable Trench.................................................................................... 20
5.3.5 Ventilation Requirements .................................................................. 20
5.3.6 Other Requirements.......................................................................... 21
5.4 Wiring Specification ................................................................................... 22
5.5 Tightening Torques and Cable Protection.................................................... 22
5.5.1 Cable Fixing...................................................................................... 22
5.5.2 Cable Protections ............................................................................. 22
6 Mechanical Installation ............................................................................ 24
6.1 Transport and Shipping .............................................................................. 24
6.1.1 Attentions......................................................................................... 24
6.1.2 Moving the Unpacked PCS ............................................................... 25
6.2 Field Installation ......................................................................................... 27
6.2.1 Unpacking the PCS........................................................................... 27
6.2.2 Checking before Fixing..................................................................... 28
6.2.3 Fixing the PCS .................................................................................. 28
7 Electrical Connection ............................................................................... 30
7.1 Safety Instructions...................................................................................... 30
7.2 Installation Tools......................................................................................... 31
7.3 Parts for Cabling ........................................................................................ 31
7.3.1 Copper Wire Connection................................................................... 31
7.3.2 Aluminum Wire Connection............................................................... 32

III
7.4 Preparation before Electrical Connections .................................................. 33
7.4.1 Opening the Front Door .................................................................... 33
7.4.2 Removing the Protection Grid ........................................................... 34
7.4.3 Checking the Cables......................................................................... 34
7.4.4 During Connection............................................................................ 34
7.5 Overview of the Connection Area ............................................................... 34
7.6 Cable Requirements................................................................................... 35
7.7 DC Connection........................................................................................... 37
7.7.1 Checking before Connection............................................................. 37
7.7.2 Cable Connection............................................................................. 37
7.8 AC Connection........................................................................................... 40
7.8.1 Safety Instructions............................................................................ 40
7.8.2 Cable Layout .................................................................................... 40
7.8.3 AC Cable Connection........................................................................ 41
7.9 Ground Connection.................................................................................... 44
7.9.1 Connection of Ground Copper Bar .................................................... 44
7.9.2 Equipotential Connection of Multiple Devices .................................... 44
7.9.3 Ground of the Shielded Layer of Communication Cable..................... 45
7.10 Communication Connection ..................................................................... 45
7.11 Installation Checklist................................................................................. 48
8 Commissioning ........................................................................................... 50
8.1 Commissioning Requirements.................................................................... 50
8.2 Checking before Commissioning................................................................ 50
8.2.1 Checking Cable Connection.............................................................. 50
8.2.2 Checking the PCS............................................................................. 51
8.2.3 Checking Batteries ........................................................................... 51
8.2.4 Checking Grid Voltage...................................................................... 51
8.3 Preparation before Starting ........................................................................ 52
8.4 Starting the PCS......................................................................................... 52
8.5 Completing Commissioning........................................................................ 53
9 Appendix ...................................................................................................... 55
9.1 Technical Data ........................................................................................... 55
9.2 Exclusion of Liability ................................................................................... 57
9.3 Contact Information ................................................................................... 58

1
1 About This Manual
1.1 Validity
This Installation Manual is valid for the following device types:
•SC1200UD-US
•SC1375UD-US
•SC1575UD-US
•SC1725UD-US
The SC1200UD-US/SC1375UD-US/SC1575UD-US/SC1725UD-US device is referred
to as “PCS” hereinafter unless otherwise specified.
1.2 Brief Introduction
This manual mainly contains the following content.
•Safety Instructions
Safety instructions for installation of the PCS.
•Delivery and product introduction
Introduce the delivery and check after receiving the PCS. The appearance and
functions of the PCS are also described.
•Installation guide
Introduce the PCS mechanical installation, electrical installation, communication
connection and installation check methods. The suggestions for installation space
and cable connection are also mentioned.
•Commissioning
The safety instructions of commissioning and commissioning processes are
introduced.
•Others
Technical data of the PCS, exclusion of liability and the way to contact Sungrow.

2
1.3 Target Group
This manual is aimed at technical personnel who are responsible and qualified for the
PCS installation and commissioning. Readers should be familiar with the electrical and
mechanical diagrams and characteristics of the electrical components.
1.4 How to Use This Manual
Read this manual and other related documents carefully before any work on the PCS.
Documents must be stored carefully and available at all times. Additional documents
are also available to the users:
•Operation Manual (in the scope of delivery)
•Connection Requirements for Medium-voltage Transformers
All rights reserved including the pictures, markings and symbols used. Any reproduction
or disclosure, even partially, of the contents of this manual is strictly forbidden without
prior written authorization of Sungrow.
1.5 Symbols Explanation
This manual contains important safety and operational instructions that must be
accurately understood and followed during the installation and maintenance of the
equipment.
To ensure optimum use of this manual, note the following explanations of symbols used.
DANGER indicates a hazard with a high level of risk which, if not avoided, will
result in death or serious injury.
WARNING indicates a hazard with a medium level of risk which, if not avoided,
could result in death or serious injury.
CAUTION indicates a hazard with a low level of risk which, if not avoided, could
result in minor or moderate injury.
NOTICE indicates a situation which, if not avoided, could result in equipment or
property damage.
1 About This Manual Installation Manual

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NOTE indicates additional information, emphasized contents or tips to help
you solve problems or save time.
The symbols below may be pasted on the electrical parts of the PCS. Make sure to read
the following symbols and fully understand them before installing the equipment.
SSyymmbboollss EExxppllaannaattiioonnss
Risk of electric shock!
Hot surface! Do not touch the hot surface of the device.
Do not touch live parts until 5 minutes after disconnection from the
power sources.
Protective earth. Earthing securely to ensure personal safety.
Installation Manual 1 About This Manual

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2Safety Instructions
2.1 Intended Usage
This series of Power Conversion System researched and developed by Sungrow Power
Supply Co., Ltd., is a PCS for energy storage system without transformer. It provides an
interface for the grid and battery for storage system charging and discharging. Through
step up by the external transformer, the PCS AC side can connect to the grid or load.
With TYPE 3R protection rate, the PCS can be installed outdoors.
Through the external medium-voltage transformer, the AC output voltage of PCS will be
raised to conform to parameters of local utility grid. Then the PCS can be connected to
the grid. For specific technical requirements of transformer, please refer to the "-
Connection Requirements of Medium-Voltage Transformer".
The charging and discharging system with Power Conversion System is shown below:
FFiigguurree 22--11 Energy storage system
NNoo.. NNaammee
A Energy storage batteries (lead-acid battery, lithium battery and etc.)
BPower Conversion System
C Medium-voltage transformer
D Utility grid
E Loads

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•Installation described in this section must be strictly observed. Any other or
additional installation other than the described installation is not permitted.
•Installation and connections other than the contents described in this section
may lead to device damages and void warranty claims from Sungrow.
2.2 Important Safety Instructions
This section introduces the safety instructions during installing or commissioning of the
PCS. Read the safety instructions in this section before installation. Please also respect
all warnings, instructions, and cautions in respective chapters before installation and
commissioning.
Shock Hazard!
Death resulting from burns and electric shock upon touching the PCS live
components.
•Do not touch the terminals or conductors connected to the grid.
•Observe all safety regulations regarding the grid connection.
Shock hazard inside the product!
•Note and respect the warning labels in the product.
•Respect all safety instructions in this manual and other related documents.
Electric shock or fire due to device damage or system fault!
•Visual check if there is device damage or other potential dangers before
operation.
•Check if other external devices or circuit connections are safe.
•Operate the device only when it is safe to do so.
Installation Manual 2 Safety Instructions

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The equipment shall be dried after passing through condensing environment,
and it is recommended to dry it under ventilation for at least 24 hours.
Before running the equipment, insulation resistance test shall be performed,
and then withstand voltage test after the insulation resistance test is passed:
•When all the tests pass, the running operation can be continued.
•If the insulation and withstand voltage test fail, it is required to continue to
dry until the requirements are met.
Generally, the equipment can run normally after 2 rounds of drying.
2.2.1 Manuals
Very important information about transportation and installation of the PCS are included
in this manual. All the descriptions in this manual, especially those safety-related items,
must be complied with.
•Please read all the instructions thoroughly prior to any transportation or installation
work on the PCS. Device damage, personal injury and property loss may follow if
otherwise.
•This manual and relevant documents should be available for relevant persons at all
times.
2.2.2 Personnel
•Only professional electrician or personnel with professional training can transport or
install the PCS;
•Operator should be familiar with the construction and working principle of the whole
energy storage system;
•Operator should be familiar with the PCS Operation Manual and Installation Manual;
•Operator should be familiar with the country/local specific standards.
2.2.3 Markings on the PCS
•PCS enclosure and interior warning labels contain important warning and safety
information. Do not tear or damage it.
•Nameplates located in the back panel and inside the front door contain very
important PCS parameter information. Do not tear or damage them.
•All safety instructions, warning labels and nameplate on the PCS body must
be clearly visible;
•Replace the markings once they damaged or unclear.
2 Safety Instructions Installation Manual

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2.2.4 Safety Warning Signs
Please respect the followings during installation, daily maintenance or troubleshooting
of the PCS:
•An obvious marking should be placed in the PCS switches upstream and
downstream to keep the switch from accidental reconnection;
•A temporary warning sign or barrier must be posted around the installation area;
•Remove the door keys and keep them appropriately after the installation work.
2.2.5 Emergency Escape Route
The emergency escape route is critical during an emergency situation.
•Keep the escape route clear and unblocked at all times.
•Never block or lock the emergency escape route.
2.2.6 Storage Battery Protection
High Voltages exist between the positive and negative polarities of the storage batteries
for large-scale PV plant. Electrical shock or life risk may occur by accidental touch.
High voltages exist between the positive and negative polarities of the storage
batteries!
•Ensure the PCS and storage batteries are disconnected completely during
device maintenance.
•Place warning labels in the disconnection place to avoid accidental
reconnection.
2.2.7 Device Installation
Install the PCS by strictly following the description in this chapter.
Install the PCS in electrical control room to avoid the noise produced during PCS
operation and safety accidents.
•The control room should be far from residential areas. Sound insulation measures
should be taken if necessary.
•Never place any flammable substance inside or around the control room.
•Unobstructed air flow.
•The design of the control room must meet with international and country-specific
EMC requirements.
Installation Manual 2 Safety Instructions

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Smog warning device is recommended to install inside the control room for
quick response of plant staff to the potential fire.
2.2.8 Electrical Connection
Electrical connection must be in accordance with the circuit diagram and the
description in this manual.
Shock Hazard!
Death resulting from burns and electric shock upon touching the PCS live
components.
•Configuration of the storage batteries, related current, voltage and power
must conform to technical data of the PCS.
•Connection to the utility grid must be done after receiving approval from the
local utility grid and done by qualified personnel only.
•All the electrical connections must comply with country/local-specific
standards and regulations.
Medium-voltage Transformer!
PCS outputs cannot be connected in parallel directly. Please adopt either of the
following methods:
•One PCS connects to the medium-voltage grid through a single two-winding
transformer ; or
•Two PCSs connect to the medium-voltage grid through double split-type
transformer.
•No neutral point is required on the low voltage side of the step-up
transformer.
•If a neutral line is present, installers must always keep in mind not to connect
or ground it.
Follow strictly the internal connection marks to connect cables.
2 Safety Instructions Installation Manual

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2.2.9 Measuring Instrument
To ensure each electrical parameter meets requirement during electrical connection
and commissioning, please use related electrical measurement instruments.
•Instrument for measurement of the electrical parameters should be high
quality instrument with sufficient measuring range
•Make sure the connection and use of the instrument are correct to avoid arc
and other dangerous situations
•Personal Protective Equipment (for example, insulation gloves and etc.) must
be equipped for live line measurement.
2.2.10 Volt-free Operations
Before any service work, observe the following requirements.
•Avoid any accidental re-connections of the PCS
•Verify that no voltage or current is present with appropriate testing devices.
•Ground and short-circuit whenever necessary.
•Cover possible live parts with insulation cloth to avoid accidental contact.
•Ensure sufficient escape room.
•Wait at least 15 minutes until the inner capacitors discharge completely.
2.2.11 ESD Protection
The PCS may be damaged irreversibly by electrostatic discharge (ESD) at its
components.
•During the operation of the PCS, please observe all the ESD-related safety
regulations, for example wear antistatic wrist strap.
•Avoid unnecessary touch of the printed circuit board or other sensitive
components.
2.2.12 Moisture protection
Penetrating moisture may damage the PCS! For normal operation of the PCS,
please respect the followings:
•Do not open PCS doors when relative humidity is above 95%.
•Do not install the PCS in rainy days.
Installation Manual 2 Safety Instructions

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2.2.13 Disposal of Waste
When the PCS is end of life, it cannot be disposed of together with household wastes.
Please contact the local authorized collection point.
2.2.14 Others
Use suitable protective equipment (for example safety goggles, earplugs, dielectric
gloves, insulating shoes) when transporting or installing the device.
Emergency aid should be prepared beforehand since the PCS is always installed far
away from the downtown area.
Every possible auxiliary method should be taken to ensure the safety of personnel and
device.
•All the pictures and descriptions in this manual apply to the standard
configuration PCS. The actual product you receive may differ. Should you
have any specific requirements, please inform us.
•This manual may not cover all possible situations. Should a specific
problem occur that is not explained in this manual, please contact Sungrow.
2 Safety Instructions Installation Manual

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3Delivery
3.1 Scope of Delivery
Materials described in this section should be included in the crate.
IIttee--
mm NNaammee QQuuaannttii--
ttyy NNoottee
A PCS 1 Including keys and other accessories
B Installation Manual 1-
COperation Manual 1-
DWarranty Card 1-
EProduct Test Report 1-
FQuality Certificate 1-
3.2 Identifying PCS

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3.2.1 Appearance
The external appearance and major components are shown in the following figure.
FFiigguurree 33--11 Appearance of the PCS
IItteemm NNaammee DDeessccrriippttiioonn
AEmergency stop button Disconnect the PCS from DC side power
supply when pressing this button
B Door lock Used to lock and open the PCS front door
C LED indicator “POWER”, “OPERATION” and
“FAULT”
DStart/Stop button Start: Have the boot conditions
Stop: Close the PCS
E Maintenance interface Used as the external maintenance network
port of the device.
The AC switch is located inside the PCS and only used to start/stop the PCS.
SUNGROW shall hold no liability for damage caused by inappropriate
operations.
3 Delivery Installation Manual

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3.2.2 Nameplate
Identify the PCS from its nameplate. The identical nameplate is located separately as
shown by Item A in the figure below. The nameplate is attached to the side cover plate
of the PCS. The nameplate includes information such as the model, serial number, main
technical parameters, marks of conformity, and production place of the PCS.
FFiigguurree 33--22 Nameplate Locations
Very important parameters and other information are contained in the
nameplate. Protect the nameplate at all times! Do not tear or damage the
nameplates.
3.3 Checking for Transport Damage
The PCS has been strictly inspected and tested before delivery. Despite robust
packaging, the machine may be damaged during transport. Therefore, once you
receive the PCS, a detailed inspection is necessary.
3.3.1 Checking the Package
Check the outer package. Check whether the package is damaged during transport.
Installation Manual 3 Delivery

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3.3.2 Checking the PCS
After unpacking, check the following items for any possible damages:
•Check to see if the delivery contents are complete as per section"3.1 Scope of
Delivery"
•Check to ensure that the PCS type is correct.
•Check the PCS outside and inside components to see if any damage has occurred
during transportation.
If any damage is detected, contact the shipping company or Sungrow immediately. A
relevant photo is preferred. We will provide you with the fast and best service.
Only install the PCS when it is technically faultless and safe to do so.
3.4 Storage
If it is not to be installed or commissioned immediately upon reception, the PCS should
be stored appropriately.
•The unit must be stored in original packaging with the desiccant inside.
•The PCS must be stored on an even foundation, which must be solid enough to
support the PCS.
•The unit must be stored in a clean and dry place to prevent dust and moisture.
•The storage temperature should be always between -40℃ and +70℃. The storage
relative humidity should be always between 0 and 95% without condensation.
•It is very important to keep the PCS away from harsh environment, for example
shock cold, shock hot or crash.
•During the storage time, check periodically (at least once a week) for visible
damages by rodents. Replace the packaging if necessary.
•Unpacking check if the storage is longer than half a year. Replace the desiccant bag
and pack the PCS.
•The PCS must be packed!
•No stacking on top of the crate!
•No tilting of the device.
To install the PCS after long-term storage, open the cabinet door and check
thoroughly to make sure the PCS is intact. Test by professional personnel if
necessary before installation.
3 Delivery Installation Manual