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MR VACUTAP VRC III User Manual

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On-load tap-changer
VACUTAP
®
VR I II III-Ex
Installation and commissioning instructions
5292950/01 EN

Table of Contents

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MR VACUTAP VRC III Specifications

General IconGeneral
BrandMR
ModelVACUTAP VRC III
CategoryIndustrial Equipment
LanguageEnglish

Summary

Safety Guidelines for VACUTAP VR Operation

Appropriate and Inappropriate Use

Defines the intended use of the on-load tap-changer and describes prohibited operating conditions.

Fundamental Safety Instructions

Covers personal protective equipment, work area safety, and general operational safety measures.

Product Description and Components

Mounting and Installation Procedures

Installing On-Load Tap-Changer (Standard Version)

Detailed steps for fastening the tap-changer to the transformer cover, including oil compartment procedures.

Installing On-Load Tap-Changer (Bell-Type Tank)

Procedures for installing the tap-changer into a bell-type tank structure.

Fitting Protective Devices and Drive Components

Instructions for connecting temperature sensors and installing/connecting the protective relay.

Commissioning and Initial Checks

Commissioning Transformer at Operating Site

Procedures for filling the oil compartment, bleeding components, and checking the motor-drive unit and protective relay.

Commissioning the Transformer

Final checks and steps for commissioning the transformer, including initial energization.

Fault Elimination and Troubleshooting

Protective Relay Tripping and Re-commissioning

Steps to take when the protective relay trips, including checking flap valve and re-commissioning the transformer.

Fault Descriptions and Actions

A table listing common faults, their descriptions, and recommended actions or contacts.

Technical Data and Specifications

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