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Table of Contents

1 Safety ..........................................................................................................1

1.1 General Safety ....................................................................................................................1

1.2 Safety Instructions of PV, Inverter and Grid ...............................................................1

1.2.1 Safety Instructions of PV ....................................................................................2

1.2.2 Safety Instructions of Inverter ...........................................................................2

1.2.3 Safety Instructions of Utility Grid .....................................................................3

2 Product Overview ....................................................................................4

2.1 System Description ...........................................................................................................4

2.2 Appearance .........................................................................................................................4

2.3 Supported Power Grid .....................................................................................................5

2.4 Symbols on the Label and Inverter ...............................................................................6

2.5 Working Principle ...............................................................................................................7

2.5.1 Circuit Diagram .....................................................................................................7

2.5.2 Application Schemes ..........................................................................................8

2.6 Working State ......................................................................................................................10

2.7 Working Mode ....................................................................................................................11

2.7.1 Self-use Mode (Priority: Loads > Battery > Grid) .........................................11

2.7.2 Feed-in Priority (Priority: Loads > Grid > Battery) .......................................13

2.7.3 Backup Mode (Priority: Loads > Battery > Grid) ..........................................14

2.7.4 Peak Shaving Mode ............................................................................................16

2.7.5 TOU Mode ..............................................................................................................17

2.7.6 EPS Mode (Priority: Loads > Battery) ..............................................................18

2.7.7 Manual Mode .........................................................................................................19

2.7.8 Export Control Function ....................................................................................19

3 System Overview ......................................................................................21

4 Transportation and Storage ...................................................................23

5 Preparation before Installation ..............................................................24

5.1 Selection of Installation Location .................................................................................24

5.1.1 Environment Requirement ................................................................................24

5.1.2 Installation Carrier Requirement ......................................................................25

5.1.3 Clearance Requirement .....................................................................................26

5.2 Tools Requirement ............................................................................................................27

5.3 Additionally Required Materials .....................................................................................28

SolaX Power X3-ULT-15KP User Manual

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