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SMA SI 5048 - Page 7

SMA SI 5048
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SMA Solar Technology AG Table of Contents
Technical Description SI5048-TEN093630 7
14.2.4 Grid Reconnection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
14.2.5 Grid operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
14.2.6 Grid Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
14.2.7 Failures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
14.2.8 Limits and Power Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
14.2.9 Operation in Conjunction with PV Inverters. . . . . . . . . . . . . . . . . . . . . . . . . 121
14.3 Generator and Grid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
15 Relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
16 Multicluster Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . 125
16.1 Communication between the Sunny Island. . . . . . . . . . . . . . . 125
16.2 Initial Commissioning of the Multicluster System. . . . . . . . . . . 128
16.3 Switching a Multicluster System On and Off . . . . . . . . . . . . . 129
16.3.1 Activation / Startup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
16.3.2 Stopping and Deactivating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
16.4 Generator Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
16.5 Behavior with Different Charge States . . . . . . . . . . . . . . . . . . 130
16.6 Communication Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
16.7 Automatic Frequency Adjustment (AFRA) . . . . . . . . . . . . . . . . 131
16.8 Firmware Update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
16.9 Fault Handling in a Multicluster System . . . . . . . . . . . . . . . . . 132
16.10 Grid operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
16.11 Generator Emergency Operation. . . . . . . . . . . . . . . . . . . . . . 132
17 PV Inverters in the Stand-Alone Grid System . . . . . . . . 133
17.1 Setting Stand-Alone Grid Operation. . . . . . . . . . . . . . . . . . . . 133
17.1.1 Setting using the rotary switch on SB 3000TL / 4000TL / 5000TL . . . . . . 134
17.1.2 Setting using the rotary switch on SB 2000HF / 2500HF / 3000HF
and STP 10000TL / 12000TL / 15000TL / 17000TL. . . . . . . . . . . . . . . . 134
17.1.3 Settings Via Communication or Sowftare . . . . . . . . . . . . . . . . . . . . . . . . . . 134
17.2 Use of SB 3000TL / 4000TL / 5000TL in 60 Hz Grids. . . . . 135

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