Basler Electric BE1-11t, Transformer Protection System

Correctly configuring protection with confidence has never been easier than

with the BE1-11. The BE1-11t Transformer Protection System is designed with

many features to address issues with reliability arising from the complexity of

programming. With BESTspace™ files, multiple BESTlogic™Plus preprogrammed

logic schemes, and associated application notes, you can be confident that you

have the protection you need.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.

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.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 ac current relays provide current monitoring and protection and may be

specified for use in single-phase or three-phase applications.

Three models are available: the ES-37 provides undercurrent protection,

the ES-51 provides overcurrent protection, and the ES-37/51 provides

undercurrent and overcurrent protection. Microprocessor-based circuitry

enhances functionality and improves performance. Internal diagnostics

annunciate when relay function or accuracy is compromised.

ES-49 temperature relays use resistance detectors (RTDs) to monitor remote

temperatures. An ES-49 relay can be specified with three or six inputs and

specified to monitor copper or platinum RTDs. Microprocessor-based circuitry

enhances functionality and improves performance.

Internal diagnostics annunciate when relay function or accuracy is compromised.

ES frequency relays provide frequency monitoring and protection for use in

single-phase or three-phase applications.