Features | SEL-352 | SEL-451 | SEL-487B | SEL-487V |
---|---|---|---|---|
Applications | ||||
Breaker Failure Protection, Number of Three-Phase Breakers | 1 | 2 | 7 | 1 |
Bus Differential | ||||
Shunt Capacitor Bank Protection | ƒ | |||
Underfrequency Load Shedding | ƒ | ƒ | ||
Undervoltage Load Shedding | ƒ | ƒ | ƒ | ƒ |
Protection | ||||
25 Synchronism Check | ||||
27/59 Under-/Overvoltage | ||||
32/37 Power Elements | ƒ | ƒ | ||
46 Current Unbalance | ƒ | ƒ | ||
47 Voltage Unbalance | ƒ | ƒ | ƒ | |
49 Equipment Thermal Monitoring | ƒ | ƒ | ||
50FO Flashover Protection | ||||
50 (N,G) Overcurrent (Neutral, Ground) | ||||
50P Phase Overcurrent | ||||
50Q Negative-Sequence Time-Overcurrent | ||||
51 (N,G) Time-Overcurrent (Neutral, Ground) | ||||
51P Phase Time-Overcurrent | ||||
51Q Negative-Sequence Time-Overcurrent | ||||
60 (N,P) Current Unbalance (Neutral, Phase) | ||||
67 Directional Overcurrent | ||||
81 Under-/Overfrequency | ||||
81R Frequency Rate of Change | ||||
87 Current Differential | ||||
87V Voltage Differential | ƒ | |||
Single-Pole Trip/Close | ||||
Instrumentation and Control | ||||
Open-Pole Detection | ƒ | ƒ | ||
79 Automatic Reclosing | ƒ | ƒ | ƒ | |
SELogic Control Equations | ||||
Voltage Check on Closing | ||||
Nonvolatile Latch Control Switches | ||||
SELogic Remote/Local Control Switches | ||||
Display Points | ||||
Multiple Settings Groups | ||||
Substation Battery Monitor | ||||
Breaker Wear Monitor | ||||
Voltage Sag, Swell, and Interruption Recording | ||||
Event Report (Multicycle Data) | ||||
Sequential Events Recorder | ||||
Instantaneous Meter | ||||
Demand Meter | ||||
Harmonic Metering | ||||
IEEE C37.118 Synchrophasors | ||||
IEC 61850 | ||||
Built-In Web Server | ||||
Simple Network Time Protocol (SNTP) | ||||
Parallel Redundancy Protocol (PRP) | ||||
IEEE 1588 Precision Time Protocol Verion 2 (PTPv2) | ||||
Time-Domain Link (TIDL™) Technology | ||||
SEL-2600 RTD Module Communications | ||||
Miscellaneous Features | ||||
Connectorized (Quick Disconnect) Available | ||||
Synchrophasor Real-Time Control |
Standard Feature
Model Option
ƒ This function may be created using relay elements and timers.