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SMA Sunny Island 5048 - Page 7

SMA Sunny Island 5048
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SMA Solar Technology AG Table of Contents
Technical Description SI5048-TB-TEN110340 7
14.2.4 Grid Reconnection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
14.2.5 Grid Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
14.2.6 Grid Failure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
14.2.7 Disturbances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
14.2.8 Limits and Power Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
14.2.9 Operation Together with PV Inverters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
14.3 Generator and Grid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
15 Relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
16 Multicluster Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . 132
16.1 Communication between the Sunny Island. . . . . . . . . . . . . . . 132
16.2 Initial Start-up of the Multicluster System. . . . . . . . . . . . . . . . . 135
16.3 Switching a Multicluster System On and Off . . . . . . . . . . . . . 136
16.3.1 Activation / Startup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
16.3.2 Stopping and Switching Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
16.4 Generator Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
16.5 Behavior with Different Charge States . . . . . . . . . . . . . . . . . . 137
16.6 Communication Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
16.7 Automatic Frequency Control (AFC). . . . . . . . . . . . . . . . . . . . 138
16.8 Updating the Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
16.9 Error Handling in a Multicluster System . . . . . . . . . . . . . . . . . 139
16.10 Grid Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
16.11 Generator Emergency Operation. . . . . . . . . . . . . . . . . . . . . . 139
17 PV Inverters in Stand-alone Grid Systems . . . . . . . . . . . 140
17.1 Setting Stand-alone Grid Operation. . . . . . . . . . . . . . . . . . . . 140
17.1.1 Setting via Rotary Switch with SB 3000TL/4000TL/5000TL. . . . . . . . . . . 141
17.1.2 Setting via Rotary Switch with SB 2000HF/2500HF/3000HF and
STP 10000TL/12000TL/15000TL/17000TL . . . . . . . . . . . . . . . . . . . . . . 141
17.1.3 Setting via Communication or Software . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
17.2 Use of SB 3000TL/4000TL/5000TL in 60 Hz Grids. . . . . . . 143

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