Transformer Diagnostic Workshop

OMICRON Academy | Houston | Wednesday, October 25, 2017

OMICRON’s transformer training course is designed to provide the essential information needed to “assess” the condition of your power transformer assets. Participants will learn power transformer theory, test methods, and data analysis strategies, which includes the most up to date techniques and practices that can be applied to power transformers. All subjects presented are adequate for all levels of expertise, and all examples are derived directly from field experiences. This is a comprehensive one-day training course.

Seating is limited.


Learning Objectives

  • Understand how to test power transformers.
  • Identify power transformers properties essential for comprehensive diagnostic testing.
  • Understand the basics steps in testing and analyzing power transformers.
  • Learn basic analysis strategies.

A comprehensive list of power transformer topics will be presented including:

  1. Introduction to Power Transformers
  2. Introduction to Bushings
  3. Introduction to Surge Arresters
  4. Application of Electrical Measurements
  5. Advanced Diagnostic Test Methods
  6. Analysis and Interpretation Results

Introduction to Power Transformers

  • Transformer Types (2-Winding, 3-Winding, Autos)
  • Winding Configurations (Delta, Wye, Auto, Zig-Zag)
  • Conservator Types
  • Insulating Material
  • Fluid Types
  • Construction Forms (Core, Shell)
  • Nameplates
  • Cooling Modes
  • Life Expectancy
  • Tap Changers (OLTC, DETC)
  • Failure Modes
  • Transformer Testing (Factory, Field)
  • Analysis and Interpretation of Test Results (Using Standard Limits, Using Nameplate Values, Identifying Trends, Confirming the results of Other Diagnostic Tests)

Introduction to Bushings

  • Bushing Theory
  • Bushing Types (OIP, RIP, and non-condenser)
  • Bushing Tap Adapters (Test and Potential)
  • Bushing Nameplates and Ratings
  • Failure Modes
  • Bushing Testing (C1, C2, Energized Collar)
  • Analyzing Results
  • Field Experience

Introduction Surge Arresters

  • Surge Arrester Theory
  • Surge Arrester Types (Metal-Oxide, Silicone-Carbide)
  • Failure Modes
  • Surge Arrester Testing
  • Analyzing Results
  • Field Experience

Application of Electrical Measurements

  • Power Factor and Capacitance
  • Exciting Current
  • Ratio (TTR)
  • Impedance: Leakage Reactance
  • DC Winding Resistance

Advanced Diagnostic Testing Methods

  • Tip-Up PF/CAP
  • Variable Frequency PF/CAP

Analysis and Interpretation of Results

  • Interpretation Strategies
  • Limits and Trending
  • Failure Modes
  • Assessment to Industry Standards – IEEE C57.152
  • DGA/Oil Screen
  • Moisture Estimation
  • Residual Magnetization (DEMAG)

Pre-requisites

  • Basic knowledge and understanding of power transformers.
  • Working knowledge of Windows programs (e.g. Word and Excel), and the Windows operating system.

Event Details

  • Date: Wednesday, October 25, 2017
  • Time: 8 a.m. - 4 p.m.
  • Cost: $89.00 per person, covers lunch and course materials
  • Location: OMICRON Academy Training Center, 3550 Willowbend Blvd, Houston, TX 77054

Participation will include lunch, breaks, and course materials.


By registering for this event, you are granting OMICRON permission to use any photograph, video, or recording of you to document the event and promote this and other events. If you have questions or concerns, please contact our event coordinator.