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Ashida ADR241A User Manual

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Doc ID : ADR241A_IM_01
Ref ID : ADR241A/IM/TP
Rev No. : 02
Page No. : 1 of 150
ADR141A /
ADR241A
ADR141A / ADR241A
Feeder Protection Relay
Instruction Manual

Table of Contents

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Ashida ADR241A Specifications

General IconGeneral
Contact ArrangementDPDT
Operating Voltage24 VDC
Contact Form2 Form C
Coil Voltage24 VDC
Relay TypeElectromechanical
Release Time5ms
Insulation Resistance100 MΩ
Dielectric Strength1500 VAC for 1 minute
Ambient Temperature-40°C to 70°C

Summary

Safety and General Information

Healthy and Safety

Ensures equipment is installed and handled safely.

Installing, Commissioning and Servicing

Current Transformer Circuits

Safety precautions for CT secondary circuits.

Introduction and Specifications

Features

Key protection and control functions of the relay.

Technical Specifications

Detailed technical parameters of the relay.

Current Input

Specifications for current transformer inputs.

Auxiliary Supply Input

Specifications for auxiliary power supply.

Accuracy of Protection Function

Accuracy details for protection functions.

Typical Tests Information

Information on standard tests performed on the relay.

Installation and Procedure

Installation Procedure

Step-by-step guide for installing the relay.

Safe Mounting

Procedure for flush panel mounting of the relay.

Relay Connection and Diagram

Instructions for connecting the relay and understanding diagrams.

Before Energizing Checks

Critical checks before powering up the relay.

Current Transformer (CT) Circuit

Safety procedures for CT secondary circuits.

CT/Auxiliary Power/Input/Output Connections

Details on terminal blocks for various connections.

Power Supply Connections

Wiring guidelines for auxiliary power supply.

Earth Connection

Importance and procedure for earthing the relay.

Mechanical Dimensions and Electrical Connection

Physical dimensions and electrical connection layouts.

Electrical Connection Diagram for 3Phase, 3Wire System

Wiring diagram for 3-phase, 3-wire connection.

Electrical Connection Diagram for 3Phase, 4Wire System

Wiring diagram for 3-phase, 4-wire connection.

PC Software Information

Relay Talk Software Features

Capabilities of the Relay Talk software.

ASHIDA Relay Talk System

Step-by-step guide for using Relay Talk software.

ADR241A IED Main Screen

Description of the main screen in Relay Talk software.

Protection Function & Logic Functions

Application Data

Required field data for relay setting calculations.

Breaker Failure (LBB)

Breaker failure setting and logic.

Phase Over Current (50/51)

Settings and logic for phase over current faults.

Ground Over Current (50N/51N)

Settings and logic for ground over current faults.

Setting Sheet

Communication

MODBUS

Application of the MODBUS standard to the ADITYAV2 platform.

IEC60-870-5-103

Application of the IEC 60870-5-103 standard.

User Guide

USER INTERFACE

Description of the relay's front panel interface.

Relay Settings

Accessing and configuring relay settings.

To Set – Relay Settings

Step-by-step guide to set relay parameters.

Flow Chart

Flow Chart – Relay Setting

Flowchart for setting relay parameters.

To Set – Relay Setting

Step-by-step flowchart for setting relay parameters.

Testing and Commissioning

Commissioning Test, Equipment Required

Tests and equipment needed for relay verification.

Checking of External Circuitry

Steps to verify external circuit connections and continuity.

Check Relay Setting

Ensuring application-specific settings are correctly applied.

Relay Testing

Procedures for testing relay calibration and measurement.

Pick up and Trip Test

Testing pickup and trip values and timing.

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