Auxiliary DC Control Power – David Wilson

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David L. Wilson of McLaren Inc will present at the IEEE dinner meeting on October 20th, at Conley’s Restaurant.

The most critical component of a protection, control, and monitoring system is the auxiliary DC control power system. Failure of the DC control power can render fault detection devices unable to detect faults, breakers unable to trip for faults, local and remote indication to become inoperable, etc. The auxiliary DC control power system consists of the battery, battery charger, distribution system, switching and protective devices, and any monitoring equipment. Proper sizing, design, and maintenance of the components that make up the auxiliary DC control system are required. Many references for stationary battery system design address only a specific battery technology making it difficult to compare different types of batteries for their overall suitability to substation application. Also, most references do not address the particular requirements of the electrical substation environment and duty cycle. This presentation provides an overall review of things to consider in designing the auxiliary DC control power system for an electrical substation.

David L. Wilson received his B.S. degree from Washington State University in 1978. He has diverse experience in the fields of energy R&D, aerospace, medical and commercial electronics manufacturing and electrical power system and component sales. He is co-owner of McLaren Inc., a manufacturers’ representative firm, with technical sales responsibilities for (15) manufacturers including Storage Battery Systems and Schweitzer Engineering Laboratories Inc. He has (17) years experience selling and advising on utility battery system applications.

Time: Social time will start at 5:30 p.m. and the Dinner will start at 6:30 p.m.
Location: Conley’s Restaurant, 12618 E Sprague Avenue Spokane, Washington

Click Here to Register

Here is the iCal Link; http://meetings.vtools.ieee.org/feed/meeting_ical/8269

Circuit Modeling – Cooper Power Systems

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Bruce Meyer of Cooper Power Systems will present at the IEEE meeting on November 17th, at Conley’s Restaurant.

The CYMDIST Distribution System Analysis Program is designed for modeling electric distribution systems under different operating conditions and scenarios. The features and capabilities are many, but include the following:

  • Power flow and voltage drop analysis
  • Fault flow analysis
  • Voltage drop analysis with profiles
  • Network planning
  • Substation and sub-network modeling and analysis
  • Protective device coordination

The new features of CYMDIST include Distributed Generation (DG) Modeling and Transient Stability Analysis among others. With the introduction of co-generation at the sub-transmission and the distribution levels, the transient stability problem is now becoming a concern at the distribution level, and when the penetration level of distributed generation (DG) becomes high enough, the DG units will then start to influence the dynamic behavior of the power system as a whole. In a distribution network, poor stability of DG’s will result in oscillations of the power and the frequency, false tripping of the network protection and adversely affect the quality of supply to the customers. CYMDIST 5.0 extends the modeling and analysis of distributed resources including an indepth modeling to solve transient stability issues.

Bruce Meyer was born in Ann Arbor, Michigan and grew up in Council Bluffs, Iowa. He received his BS in Electrical Engineering from Iowa State University and later his MS in Manufacturing and Management Engineering from University of Wisconsin in Milwaukee. He has worked for ABB as a design engineer, MagneTek as a marketing manager for voltage regulator product, and started with Cooper Power Systems as a Distribution Protection Engineer in 1999. During his tenure at Cooper, he has worked in international marketing for overhead distribution switchgear and domestic marketing for underground switchgear. His latest position is as a Sales Engineer for the Inland Northwest territory.

Time: Social time will start at 5:30 p.m. and the Dinner will start at 6:30 p.m.
Location: Conley’s Restaurant, 12618 E Sprague Avenue Spokane, Washington

Click Here to Register

Here is the iCal Link; http://meetings.vtools.ieee.org/feed/meeting_ical/3617

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National Electric Code Presentation

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In an effort to increase relevance of the local IEEE chapter to practicing engineers, the Spokane Section has scheduled a National Electric Code (NFPA 70/NEC) presentation.  IEEE members and non members can attend for free.  Please see below for some background on the presenter and the tentative agenda.

Location:
Gonzaga University in Herak Bldg, Room 301

Parking:
College Hall (Administration)

Time:
September 23 at 5:30 PM.

Presenter:
Kevin Vogel

BSME 1964 Santa Clara University
Professional Engineer from 1969 (Washington and Idaho) and Master Electrician, Washington State
Mike Holt Enterprises video team member for Understanding the National Electrical Code
Part time consultant to Trindera Engineering, Coeur d’Alene.
Certified Instructor for NEC classes in Idaho and Washington
Currently employed full time by Crescent Electric Supply, Coeur d’Alene, as a Gear Design and Quotations Specialist


Topics Covered:

- A brief history of how and why the NEC was developed
- The main functions of the NEC and how it is organized
- Table titles, exceptions, and fine print notes
- Working Space and Dedicated Equipment Space
- Conductor ampacity
- Using the NEC to properly size circuits and protection for motors
- Branch circuits and feeders. Wire sizes/types
- What is the difference between Fusing and Circuit Breaker protection?
- How do I properly size conduits?  When is it appropriate to use conduits?  Not to use conduits?
- Sizing and providing overcurrent protection for transformers
- When do I use wire duct verses conduit and how does that affect wire type and size?  What about Cable tray?
If you are interested in attending this event, please

REGISTER HERE