Schweitzer Engineering Laboratory
Pullman, WA 99163
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Generator Relay protects against abnormal conditions.
SEL-547 Distributed Generator Interconnection Relay provides utility-grade protection when using generator in all operating modes including peak shaving, base loading, islanding, and emergency backup. Relay provides most basic generator protection functions recommended by IEEE Standard P1547 including over/under voltage detection for single or 3-phase, over/under frequency detection, synchronism...
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Protection Relay monitors 2-winding transformers.
SEL-387A monitors and protects transformers and other 2-port electrical apparatus. Protection includes differential and overcurrent protection for 3-phase current inputs, and optional Restricted Earth Fault function. Four serial communications ports enable remote metering and control of system functions and settings via PC. Sequential-events recorder logs all changes of state within relay logic...
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