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General| Brand | Sel |
|---|---|
| Model | SEL-451-6 |
| Category | Control Systems |
| Language | English |
Detects low-current ground faults on poorly conductive surfaces.
Prevents breaker closing if phases are excessively out of phase, magnitude, or frequency.
Provides programmable reclosing for breakers with voltage and synchronism checks.
Manages disconnect switches and breakers with status indication and one-line diagrams.
Offers programmable logic for local/remote control, protection, and automation.
Uses SV or TiDL to receive current/voltage from remote merging units, reducing cables.
Records voltage, current, and logic points at high sampling rates for analysis.
Provides seven relay access levels with unique passwords for enhanced security.
Explains how the SV Subscriber Relay subscribes to data from merging units via process bus.
Describes how the TiDL Relay receives and synchronizes data streams from SEL-TMU devices.
Includes instantaneous and inverse-time overcurrent elements with selectable curves.
Provides directional supervision for overcurrent elements, including negative-sequence options.
Enhances tripping time using pilot-based schemes like POTT, DCUB, and DCB.
Detects HIF signatures without being affected by loads or system conditions.
Allows mathematical combination of CT inputs from multiple breakers for flexibility.
Enables custom control logic, stability enhancements, and load shedding.
Features an LCD screen, LEDs, and pushbuttons for local control and status monitoring.
Provides dynamic one-line diagrams for breaker and disconnect switch control.
Offers preconfigured diagrams for common bus configurations, customizable with labels and analog points.
Includes programmable target LEDs and pushbuttons for status indication and local control.
Displays alarm conditions on the LCD screen, with up to 66 programmable alarm points.
Details various Ethernet port configurations supporting different connection media.
Supports multiple EIA-232 serial ports for data communication and terminal access.
Enables DNP3 outstation functionality over Ethernet and IEEE 1588 PTPv2 for time synchronization.
Provides interoperability with intelligent devices using IEC 61850 protocols for monitoring and control.
Enables bidirectional digital communication between SEL relays for enhanced coordination.
Lists supported protocols like ASCII, FTP, Telnet, and Modbus for terminal access and data transfer.
Facilitates custom control logic, replacing traditional panel switches and RTU wiring.
Allows engineers to create complex control logic using relay elements, inputs, and outputs.
Provides detailed information on instantaneous, demand, and power/energy metering quantities.
Offers post-fault analysis tools with event reports, SER, and oscillo/event recording.
Monitors substation battery voltage for up to two battery systems, providing alarms and control.
Tracks breaker wear based on interrupted current to schedule timely maintenance.
Illustrates the front panel layout with pushbuttons, LEDs, and display.
Shows the rear panel connections for SV and TiDL relays, including ports and terminals.
Provides physical dimensions and mounting details for different chassis types.
Lists available interface boards (INT2, INT4) with their input/output specifications.
Details chassis orientation, type, and power supply voltage options.
Describes various Ethernet card configurations, including port types and SFP compatibility.
Covers frequency, power supply, and control output specifications.
Details ratings for resistive break, inductive break, and fast hybrid contacts.
Lists specifications for various Ethernet SFP transceivers (100BASE-FX, -XD, -ZX).
Specifies PTP, SNTP, IRIG-B input requirements and synchronization accuracy.
Outlines the operational environmental limits for temperature and humidity.
Provides guidance on selecting appropriate wire sizes for terminal connections.
Lists safety standards and dielectric strength ratings for electrical safety.
Details electromagnetic compatibility, immunity, and emissions standards.
Specifies operational and storage environmental conditions and standards.
Details the number of streams, synchrophasors per stream, and accuracy specifications.
Covers IEEE C37.118-2005 protocol, data rate, and recording conventions.
