Network Security Device—Make the SEL-3555 Real-Time Automation Controller (RTAC) the secure access point into your substation or plant. Implement Lightweight Directory Access Protocol (LDAP) central authentication and role-based user authentication, project passwords, web upload features, access logs, and secure engineering access via Secure Shell (SSH). Map security tags into SCADA reports for industry-leading integration of security technologies.
SCADA Remote Terminal Unit (RTU)—Quickly design an integrated substation RTU system that includes protocol conversion, SCADA communications, synchrophasors, time synchronization, data management, and custom logic.
Data Concentration—Communicate with any device through built-in client and server protocols. Exchange data through DNP3, Modbus, IEC 60870-5-101/104, LG 8979, SES-92, SEL Fast Messaging, Mirrored Bits communications, and IEEE C37.118 for synchrophasors. Convert data between protocols, perform math and logic functions, and execute output logic for real-time control.
Substation Controller—Create your logic solutions in the embedded IEC 61131 logic engine, which comes standard with every RTAC. Build custom user logic. Access all system tags, including diagnostics, contact I/O, protocol data, and communications statistics, to provide unparalleled control flexibility.
IEC 61850 Integration—Integrate modern intelligent electronic devices (IEDs) into control and automation schemes with IEC 61850 GOOSE and the manufacturing message specification (MMS) client and server.
Operation Supporter/Regulator—Meet or exceed IEEE 1613 and protective relay specifications for harsh environments with the RTAC, which is designed to withstand vibration, electrical surges, fast transients, and extreme temperatures.
Event Collection—Detect, filter, and collect event data automatically from connected SEL relays. Fault location, fault current, and other data are populated into tags for easy retrieval through SCADA protocols. Automatically collect and archive events through the RTAC with acSELerator Team SEL-5045 Software.
Integrate Power Management With Industrial Control—Provide a powerful gateway between the substation and the factory using EtherNet/IP. This popular industrial protocol facilitates reliable communication between electronic devices in industrial automation systems. Use the RTAC EtherNet/IP adapter to exchange critical data for real-time monitoring, process control, and power system integration.
Substation Human-Machine Interface (HMI)—Provide cost-effective local and remote monitoring, control, and annunciation for substations and other processes by installing the optional web-based HMI, available for the RTAC and SEL-2240 Axion. acSELerator Diagram Builder SEL-5035 Software easily maps the RTAC tag database to reduce screen development time.
Lamp test button
Ethernet activity LEDs
Serial port activity LEDs
SSD activity LED
Programmable bicolor LEDs
2 front-panel USB 3.1 ports
SSD with storage capacity up to 480 GB
2 high-speed Gigabit Ethernet ports
4 USB 3.1 ports
2 built-in EIA-232 ports
Form C alarm contact output
PCIe expansion slots
6 EIA-232/422/485 ports
Dual hot-swappable power supplies
Note: Beginning with RTAC R144-V2 firmware released on February 18, 2019, the BIOS upgrade is included and managed with the firmware. If you own an SEL-3555 with firmware older than R144-V2, you can upgrade the BIOS by downloading the “SEL-3355 BIOS Update” package on the SEL-3355 webpage. Installation instructions for the SEL-3555 are available in the README.txt file included in the download.
Fast, Deterministic Processing
A quad-core Intel Xeon processor provides powerful and deterministic processing rates as low as 1 millisecond.
Integrated Human-Machine Interface (HMI)
Connect Digital Visual Interface (DVI) or DisplayPort interfaces for high-definition viewing or control of local HMI diagrams. HTML5 graphics provide support for additional browsers and enhanced graphics.
Cybersecure Using Exe-GUARD Technology
Exe-GUARD whitelist anti-malware technology provides increased security, making the SEL-3555 the first product in the market to include a whitelist antivirus solution that does not require end-user patch updates.
Renowned SEL Reliability
The RTAC is designed and tested to meet or exceed IEEE 1613 and protective relay specifications for harsh environments and to withstand vibration, electrical surges, fast transients, and extreme temperatures. The SEL RTAC operates reliably, even in challenging environments.
Concentrate and manage data from new and legacy relays and other IEDs using our extensive set of protocols.
Download the acSELerator RTAC library extensions, and take advantage of the flexibility that the SEL RTAC product line provides for your automation and integration applications. These library extensions are prebuilt code components for the advanced users of the SEL RTAC. Once downloaded, the instruction manuals for each of the library extensions will be accessible via the acSELerator RTAC help menu.
You can find the instruction manuals for the general purpose and optional libraries in the Programming Reference.
|AnalogCond||Process analog quantities and digital filtering.|
|CrossTaskData||Share data between Main and Automation tasks.|
|ChannelMonitoring||Provide alerts when a channel deviates from user-defined parameters.|
|Dictionaries||Create lookup tables for fast data retrieval.|
|DynamicVectors||Store an arbitrary number of items, such as an automatically resizing array.|
|Send alerts and notifications from an RTAC to a mail server.|
|IPAliasRedundancy||Share a single IP between two RTACs in a redundancy scheme by using an IP alias.|
|MathComplex||Perform mathematical operations on values with real and imaginary components.|
|MathMatrix||Perform common matrix operations.|
|PacketEncodings||Serialize and deserialize information to/from a socket connection.|
|PowerMetering||Perform energy and demand calculations.|
|PowerSystemProtection||Identify fault conditions, and unlock the potential of the SEL-2245-42 AC Protection Module.|
|Queue||Keep track of ordered lists of objects.|
|RecordingTriggers||Detect specific conditions in analog and digital signals to initiate the capture of data.|
|SELEthernetController||Manage both UDP and TCP raw socket connections.|
|SELRand||Generate random numbers.|
|SELServerSimulators||Simulate an SEL-351 client.|
|SELString||Combine and split strings in constant time.|
|SnmpLite||Identify and troubleshoot network connectivity.|
|SyslogCollector||Receive Syslog messages from other devices.|
To select any of the following libraries, choose the library as an option in the RTAC hardware configuration.
|Grid Connection Control||Control the point of common coupling (PCC) between the utility and renewable power generation sources.||Dynamic Disturbance Recorder, File I/O|
|Horizon SVP Plus||Turn the RTAC into a synchrophasor vector processor. Detect the onset of uncontrolled wide-area oscillations with SVPplus modal analysis.||None|
|Horizon Power System Model||Resolve synchrophasor data streams using a model of the power system.||File I/O|
|Dynamic Disturbance Recorder||Collect data from within the logic engine to generate Sequence of Events (SOE), time-aligned CSV, and COMTRADE files in the RTAC.||File I/O|
|Meter Trend Recorder||Record analog data in the RTAC, and send data to acSELerator Team SEL-5045 and acSELerator Meter Reports SEL-5630 Software for analysis.||File I/O|
|Report Generator/EmailPlus Client||Generate custom reports from data available from the RTAC's logic engine. It is bundled with a fully featured email client that integrates into secure email systems.||File I/O|
|FTP Sync||Connect to established S/FTP server infrastructure and automatically push files from the RTAC file system to remote destinations.||File I/O|
|File I/O||Read and write files to the RTAC file system. It includes a built-in SFTP/FTP client for sending and receiving files and provides programmatic access to fault and SOE records.||None|
|Distribution Automation||Fault location, isolation, restoration, and volt-VAR control of distribution feeders|
|Automated System Verification and Monitoring||Protection system monitoring and verification (NERC PRC-005)|
|Ground Fault Detection||Ground fault identification for ungrounded power systems|
|Product||Revision||Firmware ID||Date Available||Serial Number|
The Firmware IDs for older versions of the firmware can typically be found in Appendix A of the instruction manual.