DELAB DP-34 earth Fault and over current Relay DP34 efr efocr ocr combine efocr

DELAB EARTH FAULT AND OVER CURRENT RELAY

Earth fault or earth leakage as minimal as it may be, are capable of destroying poorly insulated equipment (such as transformers, motors, generators and power lines in energy distribution systems) causing fire or shock hazards, which could endanger lives.

Features
– True RMS Measurement with SPARC1 and
DCOI2 Algorithm
– Auto / Manual Scroll for Real Time Display of Phase Current and Earth Fault in %
– 6 Selectable IDMT Graphs + 1 DTL
– Fault / lo-set & hi-set Trip LED Indication
– Fault Start Event Recording &
LED Indication + Output3
– Pre-Alarm LED Indication + Output3
– Trip Event Memory
(non-volatile 7 previous records for 3 phases + earth)
– Fault Start Event Memory
(non-volatile 4 previous records with phase info)
– Programmable Relay Output Contacts for K2,K3*
– Last Trip Elapsed Time (up to 99days)
– Software Lock to Prevent Unauthorized Setting
– Complies with IEC-60255-26 Standards
– Complies with IEC-60255-26 Standards
– ANSI Code: 50P, 50G, 51P, 51G
– External Plug-in Module for :-
A-01s (RS-485 MODBUS RTU) isolated type
A-02s (RS-485 MODBUS RTU+k3)*isolated type