Over-speed protection relay / panel-mount / configurable / programmable
SEL-487B Schweitzer Engineering Laboratories

Characteristics

  • Measured/monitored value:

    over-speed

  • Other characteristics:

    panel-mount, configurable, programmable, differential

Description

The SEL-487B provides optimized, low-impedance bus differential fault detection by using high-speed, subcycle protection coupled with high-security operation for external faults. Superior protection performance is combined with integrated station automation features for seamless transition into new and retrofit applications.

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