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SEL manufactures high-quality cables for connecting a variety of devices. You can order cables to specific lengths to meet your needs. Each cable is quality tested to ensure reliability and proper operation.
This webinar describes scalable fault location, isolation, and service restoration (FLISR) solutions that use SEL recloser controls, communications devices, automation controllers, and software to locate and isolate permanent faults and restore power …
It's possible to get more out of a basic feeder protection relay without adding complexity. We've combined protection, monitoring, and control in a simple, compact package in the new SEL-851 Feeder Protection Relay.
This webinar introduces the SEL Blueframe and Data Management and Automation applications. During the webinar, you will learn how these new solutions support your efforts in increasing system security, efficiency (ease of use), and data utilization.
This webinar focuses on the SEL-735 Power Quality and Revenue Meter with a color touchscreen display. During the webinar, you will learn how the display simplifies meter setup, data access, troubleshooting, and testing. We will provide examples of how…
This webinar demonstrates how you can create and customize your own reports using energy and power quality metering data from SEL meters. During the webinar, you will learn how to retrieve and store SEL-735 Power Quality and Revenue Meter data with
In the past, power systems were dominated by linear loads and power generation sources. Today, this simple situation no longer exists and power systems include an increasing number of nonlinear loads and sources.
This webinar discusses how an SEL powerMAX remedial action scheme (RAS) solution helps the bulk power system function closer to stability limits and prevents blackouts. We also cover how to operate transmission corridors m…
Application Guide - The SEL-351R Recloser Control can be used to develop a voltage throw-over scheme. Schemes of this type are used to monitor the line voltages from two sources and automatically transfer the load to a healthy source during service interruptions.
This application guide provides a step-by-step method for testing the conventional OOS element and the OOS blinders in SEL relays. Use this application guide to test the element using multistate tests. The spreadsheet accompanied with this application guide automatically calculates all test points for the user based on the relay settings.
This application guide provides an example for setting the custom Modbus user map in the SEL-734 Advanced Metering System and SEL-735 Power Quality and Revenue Meter. It also includes a unique application example using a real-time automation controller (RTAC) with the FileIO Library to programmatically read a text file containing the custom user map and write the user map to the meter via Modbus.
This application guide shows how to calculate and test the operating time of inverse-time overcurrent protection elements. Use the accompanying spreadsheet to calculate curve operating times based on relay settings and applied current.
Application Guide - This application guide demonstrates steady-state, single-phase testing of the SEL-487E Transformer Protection Relay differential element and does not require state simulation. For a complete reference on testing this relay, refer to SEL Application Guide AG2010-07 .
This application guide explains how to use a script to easily update the firmware on one or more SEL-3610, SEL-3620, or SEL-3622 devices.
This application guide provides a brief overview and then explains the core concepts of QuickSet Design Templates through several Job Done® examples of increasing difficulty. Each completed example is included in an .rdb file that accompanies this application guide.
Application guide - This application guide describes how to calculate fault locations using voltages and currents from all line terminals and a Microsoft® Excel® spreadsheet that is available for download with this
application guide at http://www.selinc.com. This method is more accurate than the single-ended method as long as the data are stable.
This application guide discusses how to configure two SEL-487B-1 relays for a bus differential protection application where the bus feeds ten circuit breakers.
Application guide - How to Fix the HTTPS Untrusted Server Error on an SEL Web-Enabled Device