Complete Feeder Protection
Maximize control scheme flexibility using time- and instantaneous- overcurrent, overvoltage, undervoltage, and frequency elements with breaker failure protection for one three-pole breaker.
Optional Protection Features
Use the SEL-751A with one of the voltage input options to provide over- and underfrequency, rate of change of frequency, over- and undervoltage, synchronism check, dc station battery monitoring, arc-flash detection, power and demand metering elements.
Convenient Controls
Use the four programmable pushbuttons on the front panel for quick, personalized control.
Easy Communications
Choose from Ethernet or serial communications and several protocols, including Mirrored Bits® and IEC 61850. Pick multiple sessions of MODBUS® TCP, Modbus Serial, DNP3 LAN/WAN, or DNP3 serial for custom configuration of your applications.
Expanded SELogic® Control Equations
Use math and logic combinations of analog and digital values for customized applications. Adapt system control based on prefault conditions. Scale analog values and latch momentary inputs for SCADA retrieval.
Reclosing Control
Programmable four-shot recloser with optional synchronism check to match various reclosing practices.
Rugged Design
Rely on the industry’s widest ambient temperature operating range, –40° to +85°C (–40° to +185°F).
Automatic Notification
Alert key personnel to problems automatically with direct SEL-3010 Event Messenger support.
Easy Installation
Easily install into existing locations using available retrofit kits and mounting adapters, with no cutting or drilling.
Flexible Design
Choose from many installation and integration options with a small form factor and slide-in expansion cards.