| Features | SEL-387 | SEL-487B | SEL-487E | SEL-587Z | SEL-787Z | |
|---|---|---|---|---|---|---|
| Applications | ||||||
| Breaker Failure Protection | ƒ | ƒ | ||||
| Bus Differential | ƒ | |||||
| Transformer and Machine Current Differential | ||||||
| High-Impedance Bus Differential | ||||||
| Low-Impedance Bus Differential | ||||||
| Three-Phase Current Inputs | 4 | 7/ 10/ 21 ‡ | 5 | Com- mon | 4 | |
| Three-Phase Voltage Inputs | 1 | 2 | 3 | |||
| Protection | ||||||
| 27/59 Under-/Overvoltage | ||||||
| 46 Current Unbalance | ƒ | |||||
| 47 Voltage Unbalance | 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 | ||||||
| 87 Current Differential | ||||||
| 87Z High-Impedance Differential | ||||||
| Single-Pole Trip/Close | ||||||
| Three-Phase Differential Bus Zones | 1 | 2/ 3/ 6 ‡ | 1 | 1 | 1 | |
| Check Zones | 3 | |||||
| Instrumentation and Control | ||||||
| 79 Automatic Reclosing | ƒ | ƒ | ||||
| Dynamic Zone Selection | ||||||
| SELogic Control Equations | ||||||
| Nonvolatile Latch Control Switches | ||||||
| SELogic Remote/Local Control Switches | ||||||
| Display Points | ||||||
| Multiple Settings Groups | ||||||
| Substation Battery Monitor | ||||||
| Breaker Wear Monitor | ||||||
| Event Report (Multicycle Data) | ||||||
| Sequential Events Recorder | ||||||
| Instantaneous Meter | ||||||
| Demand Meter | ||||||
| Through-Fault Monitor | ||||||
| IEEE C37.118 Synchrophasors | ||||||
| Synchrophasor Real-Time Control | ||||||
| IEC 61850 | ||||||
| Built-In Web Server | ||||||
| Simple Network Time Protocol (SNTP) | ||||||
| Rapid Spanning Tree Protocol (RSTP) | ||||||
| Mirrored Bits Communications | ||||||
| Parallel Redundancy Protocol (PRP) | ||||||
| IEEE 1588 Precision Time Protocol Verion 2 (PTPv2) | ||||||
| Time-Domain Link (TIDL™) Technology | ||||||
| Miscellaneous Features | ||||||
| Connectorized (Quick Disconnect) Available | ||||||
Standard Feature
Model Option
ƒ This function may be created using settings
‡ 1/2/3 Relay Application