Joint IEEE Communications
& Power Engineering Society Event

Distribution Circuit Abnormal Power Quality Events: Ferroresonance or Not?

Speaker: Pat Duckworth, P.E.: Mr. Duckworth received a BSEE degree from the University of Nebraska at Lincoln in 1982. He has been employed by OPPD since graduation and is currently a senior technical services engineer in the Asset Management and Maintenance Optimization Department – Engineering. Pat has performed more than 300 power quality investigations for residential, commercial, and industrial customers.

Event Date: Tuesday, January 23rd, 2007

Meeting Location: Johnny's Cafe, 4702 South 27th Street, Omaha, NE

Sign In & Social Time: 5:00 P.M.

Dinner Served: 5:40 P.M.

Presentation: 6:15 P.M.

Meal Price and Selections:

• $20 - 10oz Top Sirloin
• $20 - Salmon Filet
• $20 - Husker Pork Chop

All dinners include baked potato, salad, rolls, coffee, and tea. IEEE Student meals are half-price ($10).

Sponsor: Open

Topic Overview: Pat will discuss abnormal power quality events, symptoms, causes, and results. Two of Pat’s most interesting abnormal power quality events on 13.8 kV distribution circuits will be discussed at length:
Case 1: A bizarre 1Ø event with multiple triggers that created ideal conditions for ferroresonance.
Case 2: Unexplained tripping and overheating of lightly loaded transformer.
The summary and closing will include advise should anyone encounter problems such as these.

This presentation is worth One (1.0) Professional Development Hour. Indicate your need for a PDH certificate during sign in at the meeting or on the sign up form below.

Place your reservations by no later than 2:00 PM, Friday, January 19th. Please use the following form to sign up for this event. It is important that you fill out all of the fields in order to process your reservation properly. Please submit a separate form for each guest. If you are unable to use the form to make your reservation, please use the alternate contact information at the bottom of the page.