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Siemens SIPROTEC 7UT635*-* N series User Manual

Siemens SIPROTEC 7UT635*-* N series
638 pages
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SIPROTEC
Differential Protection
7UT613/63x
V4.60
Manual
C53000-G1176-C160-2
Preface
Introduction 1
Functions 2
Mounting and Commissioning 3
Technical Data 4
Appendix A
Literature
Glossary
Index

Table of Contents

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Siemens SIPROTEC 7UT635*-* N series Specifications

General IconGeneral
Rated Current1 A or 5 A
DisplayGraphical LCD
Frequency50/60 Hz
Communication InterfacesEthernet, USB
Communication ProtocolsIEC 61850, Modbus, DNP3
Protection FunctionsDifferential, Overcurrent, Overvoltage, Undervoltage, Thermal Overload
Differential ProtectionYes
Cyber SecurityRole-based access control
Mounting TypeFlush mounting
Weight4 kg
Operating Temperature-25 °C to +70 °C

Summary

Introduction

1.2 Application Scope

Describes the device's suitability for various protection tasks like transformers, generators, motors, and busbars.

Functions

2.2 Differential Protection

Describes the main protective function based on current comparison and transformation ratios.

2.4 Time Overcurrent Protection for Phase and Residual Currents

Details the definite and inverse time stages for phase and residual currents.

2.9 Thermal Overload Protection

Prevents damage due to thermal overloading by calculating temperature rise.

2.17 Circuit Breaker Failure Protection

Provides rapid back-up fault clearance when an assigned circuit breaker fails to respond.

Mounting and Commissioning

3.1 Mounting and Connections

Covers prerequisites, connection variants, and assignment of CTs/VTs for protected objects.

3.3 Commissioning

Provides guidelines and procedures for testing the device's functions and system integration.

Technical Data

4.2 Differential Protection

Lists technical data and parameters related to the differential protection function.

4.4 Time Overcurrent Protection for Phase and Residual Currents

Provides technical data for phase and residual current time overcurrent protection.

4.9 Thermal Overload

Includes technical data for thermal overload protection.

4.17 Circuit Breaker Failure Protection

Details technical data for circuit breaker failure protection.

Appendix

A.3 Connection Examples

Provides connection examples for current and voltage transformers for different protected objects.

A.8 Settings

Lists parameter addresses, setting options, default settings, and comments for device configuration.

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