SEL-411L Data Sheet Schweitzer Engineering Laboratories, Inc.
4
➤
IEC 61850 Operating Modes. The relay supports IEC 61850 standard operating modes such as Test, Blocked,
On, and Off.
➤ IEEE 1588, Precision Time Protocol (PTP). PTP provides high-accuracy timing over an Ethernet network.
➤ Digital Relay-to-Relay Communications. MIRRORED BITS communications can monitor internal element conditions
between bays within a station, or between stations, using SEL fiber-optic transceivers. Send digital, analog, and
virtual terminal data over the same M
IRRORED BITS channel.
➤ Sequential Events Recorder (SER). The SER records the last 1000 events, including setting changes, startups,
and selectable logic elements.
➤ Oscillography and Event Reporting. The relay records voltages, currents, and internal logic points at a sampling
rate as fast as 8 kHz. Offline phasor and harmonic-analysis features allow investigation of bay and system
performance. Time-tag binary COMTRADE event reports with high-accuracy time stamping for accuracy better
than 10 s.
➤ Digitally Signed Upgrades. The relay supports upgrading the relay firmware with a digitally signed upgrade file.
The digitally signed portion of the upgrade file helps ensure firmware and device authenticity after it is sent over a
serial or Ethernet connection.
➤ Increased Security. The relay divides control and settings into seven relay access levels; the relay has separate
breaker, protection, automation, and output access levels, among others. Set unique passwords for each access level.
➤ Rules-Based Settings Editor. You can communicate with and set the relay by using an ASCII terminal or use
QuickSet to configure the relay and analyze fault records with relay element response. Use as many as 200 aliases
to rename any digital or analog quantity in the relay.
Functional Overview
Figure 1 Functional Overview
Bus
3
Line
Bus
3
3
1
1
ENV
21
25
50BF
5150
50BF
5150
67 68
79
81
SEL-411L
27 59
87
Connection to
Remote Relay
4
EIA-232
2
Ethernet
1*
1
IRIG-B
2
Differential
Channel
2*
32
49
PMU
SERSBM SIP
BCD
ENVDFR
BRM
LGC
LOC MET
16
S
E
C
ANSI NUMBERS/ACRONYMS AND FUNCTIONS
21 Phase and Ground Distance
25 Synchronism Check
27 Undervoltage
32 Directional Power
49 IEC 60255-Compliant Thermal Model
50
Overcurrent
(Phase, Zero-Sequence, and Negative-Sequence)
50BF Dual Breaker Failure Overcurrent
51
Time-Overcurrent
(Phase, Zero-Sequence, and Negative-Sequence)
59 Overvoltage
67 Directional Overcurrent
68 Out-of-Step Block/Trip
79 Single-and Three-Pole Reclosing
81 Over- and Underfrequency
87 Current Differential
ADDITIONAL FUNCTIONS
16 SEC Access Security (Serial, Ethernet)
85 RIO SEL M
IRRORED
B
ITS
Communications
BCD Broken Conductor Detection
BRM Breaker Wear Monitor
DFR Event Reports
ENV SEL-2600 RTD Module*
LGC SEL
OGIC
Control Equations
LOC Fault Locator
MET High-Accuracy Metering
PMU Synchrophasors
RTU Remote Terminal Unit
SBM Station Battery Monitor
SER Sequential Events Recorder
SIP Software-Invertible Polarities
1
Copper or Fiber Optic
2
Serial or Ethernet (Ethernet coming soon)
* Optional Feature
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