Standard Feature  Model Optionƒ This function may be created using relay, device word bits, analog quantities, and timers.
| Features | SEL-487E | SEL-387E | SEL-387 | SEL-387A | SEL-787 | SEL-787-2/-3/-4 | SEL-587 | SEL-2414 | 
|---|---|---|---|---|---|---|---|---|
| Applications | ||||||||
| Breaker Failure Protection | ƒ | ƒ | ƒ | ƒ | ƒ | |||
| Transformer and Machine Current Differential | ||||||||
| Low-Impedance Bus Differential | ||||||||
| Underfrequency Load Shedding | ƒ | |||||||
| Undervoltage Load Shedding | ƒ | |||||||
| Three-Phase Current Inputs | 5 | 3 | 4 | 2 | 2 | 2, 3, or 4 | 2 | |
| Three-Phase Voltage Inputs | 2 | 1 | 1+ | 1+ | 1+ | |||
| Protection Elements | ||||||||
| 24 Overexcitation (Volts/Hertz) | ||||||||
| 25 Synchronism Check | ||||||||
| 27I Inverse Time Undervoltage (Phase, Phase to Phase, Sequential, Vsync) | ||||||||
| 27/59 Under-/Overvoltage | ||||||||
| 32 Directional Power | ||||||||
| 46 Current Unbalance | ||||||||
| 49 Equipment Thermal Monitoring | ||||||||
| 50FO Flashover Protection | ƒ | ƒ | ƒ | ƒ | ||||
| 50 (N,G) Overcurrent (Neutral, Ground) | ||||||||
| 50P Phase Overcurrent | ||||||||
| 50Q Negative-Sequence Overcurrent | ||||||||
| 51 (N,G) Time Overcurrent (Neutral, Ground) | ||||||||
| 51P Phase Time Overcurrent | ||||||||
| 51Q Negative-Sequence Time Overcurrent | ||||||||
| 67 (P,G,Q) Directional Overcurrent (Phase, Ground, Negative Sequence) | ||||||||
| 81 Under-/Overfrequency | ||||||||
| 81R Rate-of-Change-of-Frequency | ƒ | |||||||
| 87 Phase Differential | ||||||||
| REF Restricted Earth Fault | ||||||||
| Instrumentation and Control | ||||||||
| SELogic Control Equations | ||||||||
| Voltage Check on Closing | ƒ | ƒ | ƒ | |||||
| Transformer Cooling Fan Control | ƒ | ƒ | ƒ | |||||
| Nonvolatile Latch Control Switches | ||||||||
| SELogic Remote Control Switches | ||||||||
| SELogic Local Control Switches | ||||||||
| Analog Control Variables | ||||||||
| Display Points | ||||||||
| Multiple Settings Groups | ||||||||
| Substation Battery Monitor | ƒ | |||||||
| Breaker Wear Monitor | ||||||||
| Event Report (Multicycle Data) | ||||||||
| Sequential Events Recorder | ||||||||
| Instantaneous Meter | ||||||||
| Demand Meter | ||||||||
| Load and Temperature Profile Report | ||||||||
| Resistance Temperature Detector (RTD) Inputs | ||||||||
| Built-In Web Server | ||||||||
| IEEE C37.118 Synchrophasors | ||||||||
| EtherNet/IP | ||||||||
| IEC 61850 | ||||||||
| IEC 61850 Edition 2 | ||||||||
| Simple Network Time Protocol (SNTP) | ||||||||
| Parallel Redundancy Protocol (PRP) | ||||||||
| IEEE 1588 Precision Time Protocol Version 2 (PTPv2) | ||||||||
| Time-Domain Link (TiDL) Technology | ||||||||
| Through-Fault Monitor | ||||||||
| Thermal Model/SEL-2600 RTD Module Communications | ||||||||
| Miscellaneous Features | ||||||||
| Spanish Language Support | ||||||||
| Connectorized (Quick Disconnect) Available | ||||||||