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Generator and Motor Protection Features

FeaturesSEL-400GSEL-300GSEL-700GSEL-700GTSEL-700GWSEL-547SEL-700BTSEL-710/710-5SEL-749MSEL-701SEL-849
Applications
Generator Protection        
Induction Motor Protection        
Synchronous Motor Protection           
Motor Bus Transfer           
Feeder Protection         
Breaker Failure Protection ƒ   ƒ ƒ ƒ
Equipment Thermal Monitoring  
Generator Intertie Protection          
Synchronism Check      
Integrated Synchronizer         
Protection
21P Phase Mho or Compensator Distance         
24 Overexcitation (Volts/Hertz)        
27/59 Under-/Overvoltage  
27I/59I Inverse-Time Undervoltage/Overvoltage       
32 Directional Power     
37 Underpower        
40 Loss-of-Field       
46 Current Unbalance    
47 Phase Reversal       
49 Thermal     
49R Thermal Overload (RTD)     
50 (P,N,G) Overcurrent (Phase, Neutral, Ground)  
50Q Negative-Sequence Overcurrent   
51 (N,G) Time-Overcurrent (Neutral, Ground)    
51 (P,Q) Time-Overcurrent (Phase, Neg. Seq.)      
55 Power Factor   ƒ ƒ ƒ    
60 Loss-of-Potential    ƒ ƒ
64G 100 Percent Stator Ground         
64F Field Ground        
67 (N,G) Directional Overcurrent (Neutral, Ground)        
78 Out-of-Step        
78VS Vector Shift         
81 Over-/Underfrequency  
87 Current Differential        
REF Restricted Earth Fault          
Arc-Flash Detection          
Separate Neutral Overcurrent   
Inadvertent Energization ƒ ƒ         
Flashover Protection ƒ ƒ ƒ         
Broken Rotor Bar Detection           
Instrumentation and Control
SELogic Control Equations/Remote Control Switches
Nonvolatile Latch Control Switches  
Multiple Settings Groups    
Station Battery Monitor          
Breaker Wear Monitor     
Event Report (Multicycle Data)/Sequential Events Recorder
Demand Meter   
Load Profile Report    
RTD (Resistance Temperature Detector) Inputs   
Ethernet     
Built-In Web Server    
EtherNet/IP      
IEEE 1588 Precision Time Protocol (PTP)     
IEC 61850     
IEC 61850 Edition 2     
IEC 60870-5-103       
Parallel Redundancy Protocol (PRP)     
DNP3 Serial     
DNP3 LAN/WAN     
Simple Network Time Protocol (SNTP)     
Modbus TCP     
Modbus RTU Outstation  
Synchrophasors With IEEE C37.118 Protocol        
Mirrored Bits Communications      
Miscellaneous Features
Accepts Wye or Open-Delta Voltage Transformers   
Connectorized (Quick Disconnect) Available          

Standard Feature

Model Option

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