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SEL-387E Current Differential and Voltage Relay

  • NG # 02006-HW-SEL-014

The SEL-387E Current Differential and Voltage Relay provides protection to two- or three-winding power transformers. Voltage inputs for power metering, overexcitation protection, and over-/underfrequency load shedding provide versatile solutions for power apparatus protection.

Manufactured By :
SEL
Need Help Ordering?
Call +88 01714243446

Stock
5 in stock

Custom Pricing

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Need Help Ordering?
Call +88 01714243446

Stock
5 in stock

Custom Pricing

Get A Quote

Overview

 Automation features reduce total project construction and operation costs through elimination of traditional external control switches, meters, and indicating lamps.

Three-Winding Current Differential Protection Protect two- to three-winding power transformers with programmable single- or dual-slope percentage restraint, supervised by a choice of second- and fourth-harmonic blocking or restraint elements, plus fifth-harmonic and dc blocking elements.

Overexcitation Protection Detect overexcitation conditions to prevent overheating and damage in the protected apparatus with the volts-per-hertz elements. Choose definite-time elements, multiple curves, and custom programmable curves for alarm and tripping applications.

Specification

  • Two- and Three-Winding Current Differential Protection
  • Individual Winding Overcurrent Protection
  • Through-Fault Recording and Monitoring
  • Overexcitation (V/Hz) Protection
  • Over-/Underfrequency Protection
  • Restricted Earth Fault
  • Built-In Web Server
  • Metering and Reporting

CATALOGS

SEL-387E Voltage Relay DataSheet

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