Wednesday

Morning Seminar

Title: Relay Troubleshooting 2.0

3/1/17
8:00AM - 11:45AM
Presenter: Ryan McDaniel, Schweitzer Engineering Laboratories, Inc.
Description:

Abstract - Want to know some basics about troubleshooting application problems with protective relays? This half day session will guide you through troubleshooting techniques with some common distribution and transformer protection relays.

Topics include:

  • Troubleshooting problems with a distribution feeder relay, such as reclosing and logic setting issues.
  • Troubleshooting problems with a transformer protection relay, such as current differential winding compensation setting issues.
  • Troubleshooting problems with a motor protection relay, such as thermal element and motor lockout issues.

REQUIREMENTS: For full participation, students should bring their own laptop with acSELeratorQuickSet and Synchrowave 2015 software installed prior to class as well as a calculator. Attendees must be familiar with how to connect to relays, send and receive settings, and download event reports. It is also recommended that attendees have experience in applying relays for transformers and distribution lines.

Morning Seminar

Title: Power Transformer Commissioning

3/1/17
8:00AM - 11:45AM
Presenter: Donald Platts and Brandon Dupuis, OMICRON electronics Corp. USA
Description:

Abstract - Transformers are the largest, most expensive and highly critical components of most utility substations. They are custom designed and built for the customer’s specific needs. After manufacture; the next critical step in the life of a transformer is the installation and commissioning process… The key to ensuring a long, useful, service life is to ensure that the transformer is in excellent condition when it is first energized. The commissioning process is a critical step in the validation of the manufacturer’s warranty, and the foundation for the service life.

This presentation will summarize the commissioning steps recommended in IEEE C57.93 "Guide for Installation and Maintenance of Liquid-Immersed Power Transformers". We will focus on the electrical testing that can, and should, be done during the commissioning process to ensure that the transformer is in good condition, and is ready to begin a productive lifetime of serving the load.

Some of the tests that will be reviewed are:

  • Power Factor (Transformer, bushings, and surge arresters)
  • Exciting Current
  • Turns-Ratio
  • Leakage Reactance
  • DC Winding Resistance
  • Sweep Frequency Response Analysis
  • Dielectric Frequency Response (Moisture)
Morning Seminar

Title: What Does a Partial Discharge Tell Me and How Do I Perform the Test?

3/1/17
8:00AM - 11:45AM
Presenter: Tom Sandri, Shermco Industries
Description:

Abstract - Partial discharges (PD) are essentially ‘electrical sparks’ that occur in the bulk of medium and high voltage insulation materials. In polymeric-based cable systems (EPR or XLPE cables) partial discharges primarily occur along dielectric interfaces and / or impurities in cable accessories, such as cable joints or splices and cable terminations. In rotation machines the partial discharges may be the result of operating stresses, workmanship or process issues.

In this training session we will review online partial discharge measurement practices and measuring sensors along with exploring the procedure for conducting offline PD testing and analysis in accordance with both IEEE and IEC recommended practices.

Afternoon Seminar

Title: 2018 Edition of NFPA 70E Changes

3/1/17
1:15PM - 5:00PM
Presenter: Jim White, Shermco Industries; D. Ray Crow, DRC Consulting Ltd.; and DaleepMohla, DCM Electrical Consulting Services
Description:

Abstract - The 2018 edition of NFPA 70E is to be released in September of this year. This tutorial is presented by three members of the 70E committee; Ray Crow, DaleepMohla, and Jim White. If you want straight information regarding the numerous changes that will be taking place in the new edition, this is the tutorial for you.

Afternoon Seminar

Title: Interpretation of Power Factor and Excitation Test Data

3/1/17
1:15PM - 5:00PM
Presenter: Keith Hill and Jay Garnett, Doble Engineering Company
Description:

Abstract - Once testing is complete the difficult task of interpreting the test data must take place. This seminar will review various case studies for the two winding transformer, three winding transformer, shielded transformer, potential transformers and circuit breakers. Interpretation of C1 and C2 busing tests along with excitation patterns will be covered.

Afternoon Seminar

Title: Understanding Generator Protection

3/1/17
1:15PM - 5:00PM
Presenter: J. Scott Cooper, OMICRON electronics Corp. USA
Description:

Abstract - Generator protection presents unique challenges to the testing technician. This presentation provides a basis for a higher quality testing by explaining the underlying application, common schemes, and presenting effective testing strategies for commonly encountered generator protection elements. Over excitation, over voltage, stator ground, reverse power, loss of field, over current, fuse loss, out of step, out of step, over/under frequency, and differential functions will be covered.