Siemens SIPROTEC 5 7UT82 Transformer Differential Protection Relay
The SIPROTEC 7UT82 Transformer Differential Protection Relay is a universal protection, control, and automation device designed specifically for two-winding transformers. It provides the main protection for the transformer, including multiple additional protection and monitoring functions. It also serves as backup protection for downstream objects like cables and lines
Technical Specifications
Main function: Transformer differential protection (standard or autotransformer) with additional stabilization; Up to 2 differential ground-fault protections.
Measuring Points: 2 three-phase current measuring points, 2 single-phase current measuring points.
Inputs and Outputs:
1 predefined standard variant with 8 current transformers
7 binary inputs
7 binary outputs
Hardware Flexibility:
1/3 base module with IO103, no 1/6 expansion modules possible
Available with large or small display
Housing Width: 1/3 × 19”
Communication:
Integrated Ethernet RJ45 for DIGSI 5 and IEC 61850
Optional communication modules for different protocols (IEC 61850, Modbus, DNP3, etc.)
Cybersecurity: Compliant with NERC CIP and BDWE requirements
Phasor Measurement Unit (PMU): Supports synchrophasor measurements with IEEE C37.118 protocol.
Measuring Points: 2 three-phase current measuring points, 2 single-phase current measuring points.
Inputs and Outputs:
1 predefined standard variant with 8 current transformers
7 binary inputs
7 binary outputs
Hardware Flexibility:
1/3 base module with IO103, no 1/6 expansion modules possible
Available with large or small display
Housing Width: 1/3 × 19”
Communication:
Integrated Ethernet RJ45 for DIGSI 5 and IEC 61850
Optional communication modules for different protocols (IEC 61850, Modbus, DNP3, etc.)
Cybersecurity: Compliant with NERC CIP and BDWE requirements
Phasor Measurement Unit (PMU): Supports synchrophasor measurements with IEEE C37.118 protocol.
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