Numerical
3 OC & 1 EF Switchgear Protection Relay :
ADR141A
Back
General
Description :
The
ADR141A is a 3 OC and 1 EF Switchgear Protection relay
with Instantaneous high set and programmable output
to simplify feeder protection wiring.
ANSI
IEC
Protection
Functions
50
I
>>
Instantaneous
Over current Protection (OC-Inst.)
50N
IE>>
Instantaneous
Earth Fault Protection (EF-Inst.)
51
I>t,
Ip
Time Over
current Protection (Phase) (OC-IDMT.)
51N
IE>t,
IEP
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.
Site selectable CT secondary
Programmable
Annunciation Contact
Trip circuit supervision function.
Breaker Fail.
Model
Functional Details
Cabinet
Style
ADR141A
Non
Communicable Numerical Over current / Earth
fault Switchgear Protection Relay.
Ashida
Electronics - Provide
complete infortmaton about Switchgear
Protection in India. Specialise in providing
Uninterruptible Power Systems, Generators,
Switchgear, Protection Relays with Service,
Maintenance available for www.ashidaelectronics.com.
