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Schweitzer Engineering Laboratories, Inc.
SEL-787-2, -3, -4 Data Sheet
As Many as Four-Terminal Differential and REF Protection
New Features
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Disconnect control from the Bay Screens application.
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Three-position disconnects for increased safety.
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A built-in web server that simplifies access to relay data and supports firmware upgrade.
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Faster firmware downloads via the Ethernet port.
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IEEE 1588-2008 firmware-based Precision Time Protocol (PTP) provides ease of integration.
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EtherNet/IP provides ease of integration for industrial automation applications.
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IEC 61850 Test Mode support with standard operating modes On, Blocked, Test, Test/Blocked, and Off for easy
commissioning.
SEL-787-2, -3, -4 Transformer
Protection Relays