Numerical
Self Powered Relay For Protection of Ring Main
Unit:
ADR241S
Back
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.)
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.
Model
Functional Details
Cabinet Style
ADR241S
Communicable
self powered Numerical Over current / Earth
fault Relay.
Ashida
Electronics - Find information
on Protection of Ring Main Unit and Switchgear
Protection.
Specialist in Switchgear Protection and Protection
of Ring Main Unit from www.ashidaelectronics.com.
