ADR241S – Self Powered Relay For RMU -Testing

  • Self Powered Relay For RMU -Testing
  • Self Powered Relay For RMU -Testing
  • Self Powered Relay For RMU -Testing

General Description

The ADR241S is self powered relay, communicable 3 OC and 1 EF with Instantaneous high set specially designed for Protection of Ring Main Unit or compact sub-station where no any external power supply is not available.

ANSI Protection Functions
50 Instantaneous Over current Protection (OC-Inst.)
50N Instantaneous Earth Fault Protection (EF-Inst.)
51 Time Over current Protection (Phase) (OC-IDMT.)
51N Time Over current Protection (Earth) (EF-IDMT.)

Model Functional Details Cabinet Style
ADR241S Communicable self powered Numerical Over current / Earth fault Relay. Horizontal – 260mm x 140mm x 182mm (With Clamps)
 


ADR241S Communicable self powered Numerical Over current / Earth fault Relay. Vertical – 161mm x 182mm x 145mm (With Clamps)
 


ADR241S Communicable self powered Numerical Over current / Earth fault Relay. Draw Out – 174mm x 160mm x 196mm (With Mounting)
 


ADR241S Communicable self powered Numerical Over current / Earth fault Relay. Compact – 110mm x 167mm x 148mm (With Clamps)
 


Numerical Self Powered Protection Relay For RMU : ADR241S

Specifications

  • 4 Element (3 Phase + EF) over current IDMT with instant trip.
  • Display of fault current. / Load current.
  • Selection of Curve: Six selectable curves (Normal Inverse1 (C1), Normal Inverse2 (C2), Very Inverse (C3), Extremely Inverse (C4), Long Time Inverse (C5) & Definite Time (C6).
  • Separate curve selection for phase and EF.
  • Latching of fault current up-to last 5 fault.
  • Programmable Annunciation Contact
  • SCADA compatibility. IEC60870-5-103 protocol.