Basler Electric ES-47, ES-47N Phase Sequence Relay
ES-47. Phase Sequence Relay
The ES-47 Phase Sequence Relay monitors a three-phase, three-wire system for correct phase rotation/sequence.
It provides protection against incorrect phase sequence, phase loss, and undervoltage.
ES-47 relays operate on only the fundamental component of the sensed voltage, rejecting all harmonic components.
ES-47N, Phase Balance Relay
ES phase balance relays provide monitoring and protection in three-phase applications.
Two models are available: the ES-47N provides phase unbalance, phase loss, phase reversal/phase sequence protection and the ES-47N/27 provides the same protection as the ES-47N in addition to undervoltage protection.
See note below for additional information. Microprocessor-based circuitry enhances functionality and improves performance. Internal diagnostics annunciate when relay function or accuracy is compromised.
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