Apex Electricals

Features: • 4 Element (3 Phase + EF) over current IDMT with instant trip. • Back - lit LCD display for settings. • Display of Load current in terms of primary. • Selection of Curve: Seven selectable curves Normal Inverse1 (C1), Normal Inverse2 (C2), Very Inverse (C3), Extremely Inverse (C4), Extremely Inverse (C4A) EE Equivalent, Long Time Inverse (C5) & Definite Time (C6). • Separate curve selection for phase and EF. • Design using DSP technology. • Latching of fault current up to last 5 faults with time stamping. • Password protection for setting. • Site selectable CT secondary • Relay can be made either IDMT or Define time • Programmable operating time in instantaneous element • Cold Load pickup for prolong inrush current. • In Build Breaker Fail & Trip Circuit Supervision Function • Programmable Annunciation Contact • RS 232 (at front) and RS 485 (at rear side) Communication Port for remote SCADA (only for ADR241A i.e. communicable Relay). 

ashida relay

ASHIDA NUMERICAL SINGLE POLE PROTECTION RELAY.

The Ashida ADR141A is a non-communicable numerical protection relay designed for 3-phase overcurrent (3 OC) and 1 earth fault (1 EF) protection. Part of the Aditya series, it is widely used in low and medium voltage switchgear control to provide reliable feeder protection through continuous monitoring of all phases and earth current.