SMA 3300/3800 Manual - All Eco Energy

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Electrical Connection SMA Solar Technology AG 5.5.4 Connecting the PV Generator (DC) DANGER! Danger to life due to high voltages in the inverter! • Before connecting the PV generator, ensure that the line circuit breaker is switched off and that it cannot be reactivated. NOTICE! Excessive voltages can destroy the measuring device! • Only use measuring devices with a DC input voltage range up to at least 600 V. 1. Disconnect the line circuit breaker and secure it to prevent it from being reactivated. 2. Pull the Electronic Solar Switch downward, slightly toward the wall. 3. Check the connection cables of the PV modules for correct polarity and that the maximum input voltage of the inverter is not exceeded. With an ambient temperature over 10 °C, the open circuit voltage of the PV modules should not exceed 90 % of the maximum input voltage of the inverter. Otherwise, check the system design and the PV module connection. At lower ambient temperatures, the maximum input voltage of the inverter can otherwise be exceeded. NOTICE! Exceeding the maximum input voltage can destroy the inverter! If the voltage of the PV modules exceeds the maximum input voltage of the inverter, it can be destroyed by the overvoltage. All warranty claims become void. • Do not connect strings with an open circuit voltage greater than the maximum input voltage of the inverter. • Check the system design. 4. Check the strings for ground faults, as described in section 9.3.1 ”Checking the PV Generator for a Ground Fault” (page 52). 32 SB33_38-IEN100540 Installation Guide
SMA Solar Technology AG Electrical Connection NOTICE! Excessive currents can damage the inverter! • The maximum current per DC connector plug may not exceed 16 A. DANGER! Risk of lethal electric shock! • Do not connect strings with ground faults. • First, rectify the ground fault in the respective string. 5. Check the DC plug connectors for correct polarity and connect them. To release the DC plug connectors, see section 7.2 ”Opening the Inverter” (page 37). 6. To create the sealing on the inverter, all the DC inputs have to be closed as follows: – Insert the sealing plugs provided into the DC plug connectors that are not required. Do not insert the sealing plugs into the DC inputs on the inverter. – Insert the DC plug connectors with sealing plugs into the corresponding DC inputs on the inverter. Installation Guide SB33_38-IEN100540 33
Page 1: PV Inverter SUNNY BOY 3300 / 3800 I
Page 4 and 5: Table of Contents SMA Solar Technol
Page 6 and 7: Notes on this Manual SMA Solar Tech
Page 8 and 9: Safety SMA Solar Technology AG 2 Sa
Page 10 and 11: Safety SMA Solar Technology AG 2.2
Page 12 and 13: Safety SMA Solar Technology AG Symb
Page 14 and 15: Unpacking SMA Solar Technology AG 3
Page 16 and 17: Installation SMA Solar Technology A
Page 18 and 19: Installation SMA Solar Technology A
Page 20 and 21: Electrical Connection SMA Solar Tec
Page 36 and 37: Commissioning SMA Solar Technology
Page 38 and 39: Opening and Closing SMA Solar Techn
Page 40 and 41: Opening and Closing SMA Solar Techn
Page 42 and 43: Maintenance and Cleaning SMA Solar
Page 44 and 45: Maintenance and Cleaning SMA Solar
Page 46 and 47: Troubleshooting SMA Solar Technolog
Page 56 and 57: Decommissioning SMA Solar Technolog
Page 58 and 59: Decommissioning SMA Solar Technolog
Page 60 and 61: Technical Data SMA Solar Technology
Page 66 and 67: Contact SMA Solar Technology AG 13

SMA 3300/3800 Manual - All Eco Energy

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