SEL releases TiDL technology — a simple, secure solution for digital substations

The Axion’s 24 kHz sampling rate improves the accuracy of metering and frequency tracking, and its modular architecture allows the user to select analog input, digital input and digital output modules to match the application. Relay settings remain the same as those in current SEL-400 series models, providing consistency and simplicity.

“With TiDL, you can achieve your digital substation needs in the simplest way possible,” said JoeCasebolt, SEL director of quality. “One of the ways we reduce complexity is by using point-to-point connections. No switches, zero network configurations, no settings for the field modules and the same protection algorithms and schemes that a user of a 400 series is already familiar with. You literally plug in the [fiber] cables, and it begins working.”

TiDL improves safety by removing high-energy cables from the control house where personnel typically work. Replacing copper cabling with fiber-optic cables reduces the costs and time associated with copper wiring installation, commissioning and documentation.

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