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SMA SCS 3950 UP-XT User Manual

SMA SCS 3950 UP-XT
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SMA
SUNNY CENTRAL UP
SC-UP_SCS-UP_EZE-SG-en-10 | Version 1.0ENGLISH
Service Manual for Installers
Test Instructions for the Power-Generating Unit
Protection Test
SUNNY CENTRAL UP / SUNNY CENTRAL
STORAGE UP
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SMA SCS 3950 UP-XT Specifications

General IconGeneral
ModelSCS 3950 UP-XT
TypeString Inverter
Rated Power3950 W
Max. input voltage1000 V
Nominal AC voltage230 V
Protection classIP65
Operating Temperature Range-25 °C to +60 °C
CoolingConvection

Summary

Information on this Document

Document Validity

Lists the product models covered by this service manual.

Target Audience and Skills

Defines the intended users and necessary qualifications for operating the product.

Warning Message Levels

Explains the severity and meaning of different warning messages used.

Document Symbols Explained

Clarifies the meaning of symbols used for information and requirements.

Typographical Conventions

Details usage of bold text, brackets, and other typographical elements.

Product Designations

Lists complete and abbreviated names for components and systems.

Further Resources

Guides users to additional information sources like websites and document numbers.

Safety Guidelines

Essential Safety Instructions

Crucial safety information to be followed at all times for hazard prevention.

Personal Protective Equipment (PPE)

Lists mandatory personal protective equipment for safe operation and maintenance.

Disconnecting and Reconnecting Procedures

How to Disconnect the Inverter

Step-by-step guide for safely disconnecting the inverter from electrical sources.

Disconnecting the Medium-Voltage Transformer

Procedures for safely isolating the medium-voltage transformer.

Reconnecting the Medium-Voltage Transformer

Steps for safely re-establishing connection to the medium-voltage transformer.

How to Reconnect the Inverter

Detailed instructions for safely reconnecting the inverter.

Power-Generating Unit Protection Testing

Safety Precautions for Protection Testing

Critical safety measures to ensure protection during unit testing.

Calculating Reference Voltage for Testing

Formula and explanation for determining the correct reference voltage for tests.

Saving Protection Test Parameters

Guidance on how to store test parameter settings for protection tests.

Performing the Protection Test

Comprehensive procedure for executing the power-generating unit protection test.

Technical Support and Contact Information

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