Online Learning Center

Introduction
Summary
Quiz
Glossary

Online Learning Center
Beckwith Electric Home

Impact of Voltage Transformer Connection and Grounding on Generator Protection Security and Selectivity

Purpose and Objectives
This eLearning module is designed to provide a fundamental understanding of the impact of voltage transformer (VT) connection and grounding pursuant to generator protection security and selectivity. Upon completion, you will be able to select VT connection and grounding methods to meet your protection security and selectivity requirements.

This module contains the following information:

• An introduction to the exposure that secondary side VT faults have on generator protection security and selectivity
• Alternative VT connection and grounding arrangements, with a discussion of the positive benefits and negative exposures each has to offer
• Illustrations of various connection and grounding types, including the impact of a ground faults on certain types
• A summary page intended to act as a quick reference

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