Documentation

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Literature

Flyers

Featured SEL-311L - Protect Lines With Easy-to-Use Current Differential Relays

SEL-9220 Fiber-Optic Adapter for SEL-300 Series Relays

Family of IEEE C37.94 - Improve Safety and Protect Equipment by Upgrading to Fiber-Optic Teleprotection Links

Conformal Coating

Complete IEC 61850 Product Family

Data Sheets

SEL-311L Line Current Differential Protection and Automation System

Guideform Specifications

SEL-311L Line Current Differential Protection and Automation System

SEL-311L Relay Line Current Differential Protection and Automation System

Instruction Manuals

SEL-311L-0, -6 Protection and Automation System

SEL-311L-1, -7 Protection and Automation System

Settings Sheets

SEL-311L-0, -6 App 87L Settings Sheets

SEL-311L-0, -6 App 87L21 Settings Sheets

SEL-311L-0, -6 App 87L21P Settings Sheets

SEL-311L-0, -6 App 87LSP Settings Sheet

SEL-311L-0, -6 Relay Settings Sheet

SEL-311L-1, -7 App 87L Settings Sheets

SEL-311L-1, -7 App 87L21 Settings Sheets

SEL-311L-1, -7 App 87L21P Settings Sheets

SEL-311L-1, -7 App 87LSP Settings Sheets

SEL-311L-1, -7 Relay Settings Sheets

Ordering Information

SEL-311L-1, -7

SEL-311L-0, -6

Certificates

IEC 61850 Conformance and Interoperability Statement - SEL-311L Line Current Differential Relay

IEC 61850 KEMA Conformance Certificate - SEL-311L

Publications

Application Guides

Applying SEL Relays in Systems With Inverter-Based Resources

Using Complex Chart in synchroWAVe Event to Plot Compensator Distance Characteristics

Related Material

Custom Calcs and Template Files

Maintaining Switched-Mode Relay Responsiveness in an RSTP Network

Setting a Two-Terminal SEL-311L Relay Application With Different Nominal Currents

Using Custom Calculations in SYNCHROWAVE® Event to Analyze Compensator Distance Elements

Related Material

AG2022-07-311A

AG2022-07-311B_C_L

Testing the Conventional Out-of-Step Element Using Multistate Tests for Line Protection Relays

Related Material

OOS Testing

Testing Reclosing Sequence in SEL-300 Series Relays and SEL-700 Series Relays

Use SEL-300 and SEL-400 Series Relays to Set Up POTT and DCB Schemes

Understanding and Effectively Using the SEL Mirrored Bits Protocol

Setting and Testing Frequency Elements With Time Delay in Cycles

Using an SEL-321 and an SEL-311 Series Relay to Set Up POTT and DCB Schemes

Mapping Analog Inputs to a SCADA Protocol for Remote Indication of Fault Location in SEL-311, SEL-321, SEL-421, and SEL-411L Relays

Disabling the SEL-311L 87L Function Through Relay Logic

Revised Setting Guidelines for E32 in SEL Relays

Setting and Testing a Two-Terminal SEL-311L Application With Different CT Ratios

Related Material

SEL-311L Two-Terminal Application Steady-State Testing spreadsheet

Applying SEL-311L Relays on 120- to 240-Kilometer Lines

Related Material

Applying SEL-311L Relays on 120- to 240-Kilometer Lines spreadsheet

Applying the SEL-387L and SEL-311L to Protect a Two-Terminal Line With Different Current Transformer Ratios

Remote Disabling of the 87L Element in the SEL-311L Line Current Differential System

Using the SEL-3094 as an EIA-422 Channel Simulator for Bench Testing the SEL-311L

LOG Input Considerations When Implementing a DCUB Scheme Using Mirrored Bits Communications in the SEL-321, SEL-311C, SEL-311L, and SEL-421 Relays

Use SEL-421, SEL-321, and SEL-311 Relays Where Different Systems Are Required for Primary and Backup Line Protection

Implementing Breaker Failure Protection and Transfer Tripping With the SEL-311L Relay

Using the SEL-311 Relay Synch-Check Element With Dissimilar Voltage Magnitudes on the Polarizing and Synchronizing Inputs

Application Notes

Fiber-Optic Amplifiers

Generator Black-Start Restoration Using Synchronized Measurement

Case Studies

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

Technical Papers

Improving Ground Fault Sensitivity for Transmission Lines Near Inverter-Based Resources

Getting the Lines Crossed—How a Three-Phase Series Fault Caused a Sequence of Relay Operations

Security Criterion for Distance Zone 1 Applications in High SIR Systems With CCVTs

Evaluating Phasor-Based and Time-Domain Elements for Short Line Applications

An Unlikely Pair? Combining Traveling Waves and Phasors for Reclosing on Hybrid Lines

White Papers

Fly Safe and Level: Customer Examples in Implementing Dual Primary Protection Systems

Drawings

PDF

SEL-311L Panel Drawings