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Siemens 7UT512

Siemens 7UT512
248 pages
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Siemens 7UT512 Specifications

General IconGeneral
Current Input1 A or 5 A
Rated Current1 A or 5 A
Frequency50 / 60 Hz
Current Transformer InputsUp to 6
Communication InterfacesIEC 61850
Protection FunctionsOvercurrent protection, Earth fault protection
Standards ComplianceIEC 60255, IEC 61850
Operating Temperature-25 °C to +70 °C

Summary

3 Technical Data

3.2 Differential Protection for Transformers

Specifies the setting ranges, pick-up characteristics, times, tolerances, and influence variables for transformer differential protection.

3.3 Differential Protection for Generators and Motors

Details the setting ranges, pick-up characteristics, times, tolerances, and influence variables for generator/motor differential protection.

3.4 Differential Protection for Branch-Points

Outlines setting ranges, pick-up characteristics, times, tolerances, and influence variables for branch-point differential protection.

3.5 Restricted Earth Fault Protection

Provides setting ranges, pick-up characteristics, times, tolerances, and influence variables for restricted earth fault protection.

3.6 Overcurrent Time Protection

Specifies characteristics, pick-up/times, tolerances, and influence variables for overcurrent time protection.

3.7 Overload Protection

Details setting ranges, trip time characteristics, tolerances, and influence variables for overload protection.

3.8 Tank Leakage Protection

Covers setting ranges, trip delay times, tolerances, and measured values for tank leakage protection.

4 Method of Operation

4.2 Differential Protection for Transformers

Details the principle of measurement, evaluation of values, and stabilization for transformer protection.

4.3 Differential Protection for Generators and Motors

Explains the principle of measurement and evaluation of measured values for generator and motor protection.

4.4 Differential Protection for Branch Points

Covers the principle of measurement, evaluation of values, and stabilization for branch point protection.

4.5 Restricted Earth Fault Protection

Details the principle and evaluation of measured values for restricted earth fault protection.

5 Installation Instructions

6 Operating Instructions

6.3 Setting Functional Parameters

Details procedures for parameterizing, selecting sets, setting date/time, and configuring transformer, generator, and branch point data.

6.5 Testing and Commissioning

Provides guidelines for conducting tests and commissioning the relay's protection functions.

7 Maintenance and Fault Tracing

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