Feeder Protection
Feeder protection improves the safety and reliability of your distribution feeder system by combining complete primary and backup protection with comprehensive overcurrent and arc-flash protection capabilities. These devices are suited for use in utility-, industrial-, and commercial-scale power systems.
Advanced Feeder Protection Relays
These advanced relays provide complete primary and backup protection, overcurrent and arc-flash protection, extensive communications capabilities, and flexible I/O.
Feeder Protection Relays
These relays provide primary and backup feeder protection.
System Components
Combining these components with feeder protection relays expands their protection functionality.
Distribution Feeder Protection Features
Standard Feature
Model option
ƒ This function can be programmed using logic
Features | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Distribution Protection—Applications | |||||||||
Distribution Feeder Protection | |||||||||
BF Breaker Failure Protection | ƒ | ƒ | |||||||
Generator Intertie Protection | |||||||||
25 Synchronism Check | |||||||||
Underfrequency Load Shedding | |||||||||
Undervoltage Load Shedding | |||||||||
Protection | |||||||||
27/59 Under-/Overvoltage | |||||||||
32 Directional Power Elements | ƒ | ||||||||
49 IEC Line/Cable Thermal Overload | ƒ | ||||||||
50 (P,N,G,Q) Overcurrent Element | |||||||||
51 (P,N,G,Q) Time-Overcurrent Element | |||||||||
67 (P,N,Q) Directional Overcurrent | |||||||||
78VS Vector Shift | |||||||||
81 Over-Underfrequency | |||||||||
Separate Neutral Overcurrent | |||||||||
Load-Encroachment Supervision | |||||||||
Low-Energy Analog (LEA) Voltage Inputs | |||||||||
Directional Sensitive Earth Fault Protection | |||||||||
Pilot Protection Logic | |||||||||
81R User Rate-of-Change-of-Frequency (df/dt) | ƒ | ||||||||
81RF Fast Rate-of-Change-of-Frequency | ƒ | ||||||||
Harmonic Blocking | |||||||||
Arc Sense Technology (AST) | |||||||||
Arc-Flash Detection | |||||||||
Phantom Phase Voltage | |||||||||
Current/Voltage Channels | 6/6 | 4/4 | 4/4 | 4/4 | 4/0 Standard | 4/3 Standard | 4/0 Standard | 6/0 | 4/0 |
Complete Two-Breaker Control | |||||||||
Instrumentation and Control | |||||||||
79 Automatic Reclosing | |||||||||
Fault Locating | |||||||||
SELogic Control Equations | |||||||||
SELogic Counters | |||||||||
Voltage Check on Closing | |||||||||
SELogic Nonvolatile Latch | |||||||||
Nonvolatile Local Control Switches | |||||||||
Substation Battery Monitor | |||||||||
Breaker/Recloser Wear Monitor | |||||||||
Trip Coil Monitor | ƒ | ƒ | ƒ | ƒ | ƒ | ƒ | ƒ | ||
Voltage Sag, Swell, and Interruption (VSSI) | |||||||||
Load/Signal Profile Recorder | |||||||||
Sequential Events Recorder | |||||||||
Software-Invertible Polarities | |||||||||
IEC 60255-Compliant Thermal Model | |||||||||
DNP3 Level 2 Outstation | |||||||||
Parallel Redundancy Protocol (PRP) | |||||||||
IEEE 1588 Precision Time Protocol Version 2 (PTPv2) | |||||||||
Time-Domain Link (TIDL) Technology | |||||||||
IEEE C37.118 Synchrophasors | |||||||||
Bay Control | |||||||||
Ethernet | |||||||||
EtherNet/IP | |||||||||
Built-In Web Server | |||||||||
IEC 61850 | |||||||||
IEC 61850 Edition 2 | |||||||||
IEC 61850-9-2 Sampled Values Technology | |||||||||
Firmware Option With Mirrored Bits Communications Available | |||||||||
Simple Network Time Protocol (SNTP) | |||||||||
Harmonic Metering | |||||||||
RMS Metering | |||||||||