SUNNY ISLAND 5048 - Technical Description - Wind & Sun Ltd.

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Battery Management SMA Solar Technology AG 13.7 Battery Lead Resistance In menu "221# Battery Property", you can specify the battery lead resistance (BatWirRes). The resistance is the ohmic resistance from the battery to the input of the Sunny Island master device. The default value of the parameter "221.06 BatWirRes" is 0 m Ω . The resistance is made up of the resistance of line 1 + fuse + resistance of line 2: R = R (line 1) + R (fuse 1) + R (line 2). The following applies: ρ = specific resistance for copper L = length of cable in m A = cross-section area of the conductor in mm2 Batfuse R (resistance 1) at the Batfuse is approx. 1 m Ω . 106 SI5048-TB-TEN110340 Technical Description
SMA Solar Technology AG Connecting External Sources 14 Connecting External Sources The Sunny Island supports the integration of external energy sources. Here, a distinction is made between the integration of a generator and the integration of the power distribution grid. Both the generator as well as the power distribution grid are integrated through the AC2 connection of the Sunny Island. A single-phase or a three-phase connection is possible. In the case of single-phase parallel operation, the transfer relays are operated in parallel, making it possible to use a correspondingly larger current, which in turn allows for a generator or grid connections with a higher capacity. Connecting in a single-phase parallel system: When installing parallel 1-phase systems, the connection cables for AC1 and AC2 of all Sunny Islands must have the same cable cross-sections and cable lengths. The Sunny Island has separate parameters for the grid and generator. This generally allows both operating modes to be used without making additional adjustments. The parameter settings and display values distinguish between settings or values which are generator-specific or grid-specific and settings or values (EXT) common to both grid and generator. 14.1 Generator The Sunny Island can start or stop a generator depending on consumer power or battery state of charge. In this case, diverse limits and times are taken into consideration (see section 14.1.5 ”Automatic Generator Operation” (page 114)). Extended Generator Management If necessary, the Sunny Island and generator supply consumers together. The total of the (nominal) power of both energy sources is available in the stand-alone grid. Technical Description SI5048-TB-TEN110340 107
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Off-Grid Inverter SUNNY ISLAND 5048
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Table of Contents SMA Solar Technol
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Notes on this Manual SMA Solar Tech
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The Sunny Island 5048 SMA Solar Tec
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Safety Instructions SMA Solar Techn
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Mounting SMA Solar Technology AG 4
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Mounting SMA Solar Technology AG 4.
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Opening and Closing SMA Solar Techn
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Electrical Connection SMA Solar Tec
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Control Elements SMA Solar Technolo
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Page 84 and 85: Archiving Data on a SD Card SMA Sol
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Page 98 and 99: Battery Management SMA Solar Techno
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Page 130 and 131: Relays SMA Solar Technology AG 15 R
Page 132 and 133: Multicluster Operation SMA Solar Te
Page 140 and 141: PV Inverters in Stand-alone Grid Sy
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Parameter lists SMA Solar Technolog
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Troubleshooting SMA Solar Technolog
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Accessories SMA Solar Technology AG
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Technical Data SMA Solar Technology
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Contact SMA Solar Technology AG 23
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SUNNY ISLAND 5048 - Technical Description - Wind & Sun Ltd.

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