- Complete
Line Protection
Protect transmission lines using a combination of four stepped-distance zones
of phase and ground-distance elements in communications-assisted schemes,
with directional overcurrent element backup protection. Patented Capacitance
Voltage Transformer (CVT) transient overreach logic enhances security of
Zone 1 distance elements. Best Choice Ground Directional Element™ logic
optimizes directional element performance and requires no directional settings.
- Monitoring
and Metering
Event reports, Sequential Events Recorder (SER), circuit breaker contact
wear monitor, substation battery monitor, instantaneous and demand metering,
and optional local display panel.
- Synchrophasor Measurements
Turn state estimation into state measurement with wide-area measurement of voltage and current phase angles and magnitudes. Improve system stability with high-speed, load-angle measurements. Increase stable loading with analysis of voltage and angular stability.
- Reclosing
Programmable four-shot breaker auto-reclose with synchronism and voltage
check logic for optimal system restoration.
- Communications
EIA-232 and EIA-485 serial ports for local/remote access and system integration. MIRRORED BITS® communications
protocol for eight channels of secure relay-to-relay logic communications
available on both rear-panel EIA-232 serial ports.
- Vertical
panel-mount hardware package.
- Horizontal
panel-mount hardware package.
- Liquid
crystal display and operator pushbuttons (two rack
unit vertical package not available with LCD).
- Additional
inputs and additional standard outputs, or high-current
interrupting outputs, or high-speed, high-current interrupting
outputs.
- DNP3 Level
2 Slave communications protocol.
- Connectorized®
- Conformal Coating—Protect equipment from harsh environments and airborne contaminants such as hydrogen sulfide, chlorine, salt, and moisture.
 Learn more about conformal coating.
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- Complete
pilot protection for primary and backup three-pole
tripping schemes on transmission and subtransmission
lines.
- Program
up to four-shots of automatic breaker reclosing with
synchronism and voltage checks to optimize system restoration.
 Send synchrophasor data to SCADA and wide-area measurement systems using SEL Fast Messages at rates of up to 60 times per minute. Accuracy of ± 1 degree and microsecond timing of event reports improve system visualization and event analysis. Use SEL-5077 SYNCHROWAVE® Server Software to time-correlate synchrophasor data from SEL-311 Relays and send it to display and archiving systems, such as SEL-5078 SYNCHROWAVE Console Software- Use
the built-in fault locator to efficiently dispatch
line inspection and repair personnel.
- Program
breaker failure logic with SELOGIC® control
equations.
- Schedule
as-needed circuit breaker maintenance and send alarms
when the breaker monitor detects excess breaker contact
wear from the number of operations and magnitude of
interrupted current.
- Alarm
for low-voltage conditions on station battery.
- Implement
wire-alike upgrades for popular SEL-221 series distance
relay applications.
- Application
settings simplify upgrades from SEL-221 relays.
- Use SEL-5040
Power System Report Manager Software to automatically
gather relay event reports on your PC and manage
them with a database.
- Use SEL-5010
Relay Assistant Software to manage your relay
settings.
- Use SEL-5601
Analytic Assistant Software to display oscillograms
and vector diagrams to analyze event reports.
Budgetary
Retail, Quantity 1: $4,410
Fully Optioned Price: $5,608
(Prices
displayed are for planning purposes and are subject to
change. Contact your SEL sales representative today
for a quote on configurations and quantities to meet your
needs.)
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