Generator Protection Features

Standard feature Model optionƒ This function may be created using settings
FeaturesSEL-400GSEL-300GSEL-700GSEL-700GTSEL-700GW
Applications
Generator Protection
Unit/Overall (Generator and Generator Step-Up [GSU]) Differential Protection
Independent GSU Transformer Protection
Pumped-Storage Hydro Protection
Integrated Synchronizer
Breaker Failure Protectionƒ
Equipment Thermal Monitoring
Generator Intertie Protection
Feeder Protection
Protection
21C Compensator Distance
21C Compensator Distance
21P Phase Mho Distance
24 Overexcitation (Volts/Hertz)
25 Synchronism Check
27/59 Under-/Overvoltage
27I/59I Inverse-Time Undervoltage/Overvoltage
32 Directional Power
40 Impedance-Based Loss-of-Field
40 Capability-Based Loss-of-Field
46 Current Unbalance
46 Harmonic Current Unbalance
49 Thermal Model
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.)
60 Loss-of-Potential
60 Voltage Balance Loss-of-Potential
60 (P,N) Independent Split-Phase (Phase, Neutral)
64G 100 Percent Stator Ground
64G Intermittent Ground Fault Detection
64F Field Ground
67 (N,G) Directional Overcurrent (Neutral, Ground)
67Q Negative-Sequence Directional Overcurrent
78 Out-of-Step
78 Dual Zone (Generator and System) Out-of-Step With Pole Slip Counters
78VS Vector Shift
81 Over-/Underfrequency
81R Rate-of-Change-of-Frequency
87 Stator Differential
Transformer Differential
REF Restricted Earth Fault
Separate Neutral Overcurrent
Inadvertent Energizationƒ
Flashover Protectionƒƒ
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
Disturbance Recording (up to 300 seconds)
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
IEEE C37.118 Synchrophasors
Synchrophasor Protocol EditionC37.118 2011C37.118 2005C37.118 2005C37.118 2005
Mirrored Bits Communications
Miscellaneous Features
Dual Frequency Zones (Generator and System)
Frequency Tracking Range5–120 Hz20–70 Hz 15–70 Hz15–70 Hz15–70 Hz
Accepts Wye or Open-Delta Voltage Transformers
Connectorized (Quick Disconnect) Available