ORMAZABAL EKOR.RPA-021 Protection Relay Module

Overview

The ORMAZABAL EKOR.RPA-021 is a protection relay module developed by Ormazabal for medium voltage switchgear systems. The ORMAZABAL EKOR.RPA-021 provides reliable protection and monitoring functions for MV distribution feeders and transformers. It integrates current measurement, fault detection and trip output logic to isolate short-circuit and overload faults quickly. The ORMAZABAL EKOR.RPA-021 is designed to match Ormazabal ring main units and compact switchgear for power distribution network safety control.

Features

The ORMAZABAL EKOR.RPA-021 supports configurable overload and short-circuit protection settings for distribution circuits. It collects current signals from current transformers and executes fast fault judgment. The ORMAZABAL EKOR.RPA-021 provides fault indication and event recording for post-fault analysis. It has compact structure and direct installation inside Ormazabal RMU cabinets. The ORMAZABAL EKOR.RPA-021 offers stable performance under outdoor and substation environmental conditions.

Specs

Device Type: Protection relay module Model: ORMAZABAL EKOR.RPA-021Brand: Ormazabal Applicable Equipment: Medium voltage ring main unit, distribution switchgear Protection Functions: Overload protection, short-circuit protection Signal Source: Current transformer Installation: Built-in mounting for RMU Application Scene: Medium voltage power distribution network

Principle

The ORMAZABAL EKOR.RPA-021 receives secondary current signals from matched current transformers. The internal circuit samples and calculates the real-time current value, and compares it with preset protection thresholds. Once the current exceeds the setting value, the ORMAZABAL EKOR.RPA-021 sends trip command to the switchgear operating mechanism to cut off the faulty circuit, meanwhile recording fault information for maintenance.

Applications

The ORMAZABAL EKOR.RPA-021 is used for feeder protection of urban medium voltage distribution networks. It undertakes transformer protection in box-type substations and compact distribution stations. The ORMAZABAL EKOR.RPA-021 applies to spare replacement and maintenance of Ormazabal ring main units. It also supports power distribution protection for industrial parks and commercial building power supply systems.