Numerical
3OC + 1EF Medium Voltage Protection Relay :
ADR141C
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General Description :
The
ADR141C is a 3 OC and 1 EF Medium Voltage Protection
relay with Instantaneous high set and programmable
output design in very compact cabinet.
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.
Site selectable CT secondary
Programmable
Annunciation Contact
Trip circuit supervision.
Model
Functional Details
Cabinet Style
ADR141C
Non
Communicable Numerical Over current / Earth
fault Medium Voltage Protection Relay
