Documentation

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Instruction Manual

SEL-501-2 Dual Overcurrent Relay

Data Sheet

SEL-501-2 Distribution Relay

Flyer

SEL-501 - Dual Relays in a Single, Compact Package

Literature

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Literature

Flyers

Featured SEL-501 - Dual Relays in a Single, Compact Package

Conformal Coating

Data Sheets

SEL-501 Dual Universal Overcurrent Relay

SEL-501-2 Distribution Relay

Guideform Specifications

SEL-501 Dual Universal Overcurrent Relay

SEL-501 Dual Universal Overcurrent Relay

Instruction Manuals

SEL-501-0, -1 Dual Universal Overcurrent Relay

SEL-501-2 Dual Overcurrent Relay

Settings Sheets

SEL-501 Relay Settings For Feeder-Overcurrent Protection Applications

SEL-501 Relay Settings for Breaker Failure Protection Applications

SEL-501 Relay Settings for General Overcurrent Protection Applications

SEL-501 Relay Settings for Motor Protection Applications

SEL-501 Settings for General Purpose Timer Applications

SEL-501-2 Settings Sheets

Ordering Information

SEL-501-0, -1, -2 Connectorized Relay

SEL-501-0, -1, -2 Relay

SEL-9900 Relay Package 587/501

SEL-9907 Relay Package two SEL-501's

SEL-9918 Relay Package 551/501

SEL-9927 Relay Package 501/551C

Wiring Harness for Connectorized SEL-501

Publications

Application Guides

Defining DCE and DTE: Null Modem Cable and Straight-Through Cable Applications

Applying SEL-501 Relay Motor Protection

SEL-501 Configuration and Fast Meter Messages

SEL-501-1 Configuration and Fast Meter Messages

Applying SEL-501 Relays for Generator Negative-Sequence I2T Protection

Applying SEL-501 Motor Protection With Self-Balancing Differential

Using the SEL-501 Relay to Provide Switch-Onto-Fault Protection and Overcurrent Supervision in Existing Protection Schemes

Shunt Capacitor Bank Protection Schemes Using the SEL-287V/501 and SEL-587/501 Relays

Complete Transformer Protection Schemes Using the SEL-587 and SEL-501 Relays

Applying SEL-501 Relay for Ground Overcurrent Protection Using a Core-Balance CT

Applying SEL-501 Relay for Fast Bus Trip and Simple Bus Breaker Failure Protection

Applying SEL-501 Relay for Feeder Relay Backup Protection

Case Studies

SEL Protective Relay Withstands EF5 Tornado

SEL Technology Improves Relay Response Under High Fault-Current Conditions

Paper Mill Pioneers Power Protection Using Optical Fiber Skywire Supported by Digital Relay Protection

Utility-Grade Relays Protect Critical Motors at Denver-Area Wastewater Plant

Drawings