FORUM PROGRAM

The presentation will discuss the application and installation issues of motors and variable frequency drives. The presentation will provide the attendee with a solid base of Adjustable Frequency Drive theory and will also be made aware of issues that concern the proper application, installation and maintenance of these products.

• Voltage surges, sags, power loss and single phasing
• Radio Frequency Interference
• High line voltage, Loaded versus unloaded VFD
• Harmonics and IEEE 519
• Transients, Spikes and Capacitor Switching
• 6 pulse and 12 pulse converters
• Active Front End converters
• Third Party Filters
  Active filters
  Broad band filters
  Passive Filters
  LCL filters

• Reflective wave in cables
• Cable capacitance current
• Dv/dt and insulation issues
• Electromagnetic Compatibility
  Common Mode Interference
  Differential Mode Interference
  Grounding issues

  Bearing Failures

  Special cables versus VFD cable

The Rockwell Automation drives presentation will be divided into 2 principal segments:

Segment One will explain how drives can be seamlessly integrated into the factory's supervisory control system. Students will learn how plant floor personnel, maintenance and engineering personnel, and plant management can utilize this "Integrated Architecture" strategy to maximize/streamline productivity and uptime, maximize the results of cost reduction strategies, improve process controls, and monitor and communicate with plant systems at all different levels within the facility.

Segment Two will provide a review of the most prominent Medium Voltage drive topologies and new advances planned and/or recently announced. Special attention will be given to Active Front End rectifiers and common mode voltage elimination techniques which eliminate the requirement for phase shifting isolation transformers and multipulse rectifiers. These advances provide excellent input power factor, extremely low harmonics and allow the use of existing motors and power cables with no derating. By reducing the components required in a drive system, cost reductions, size reductions, reliability improvements and operating efficiencies can be realized. Some special applications, and strategies to address these, will be discussed.

The focus of the presentation would be on medium voltage drives (500 HP to 100,000 HP) and voltages from 2300 volts to 14,400 volts. The presentation would cover the differences in technology and applications between low voltage drives and medium voltage drives.
The key points to cover are as follows:

• Drive topologies available at medium voltage and the differences to low voltage.
• Potential motor application considerations at medium voltage.
• Line harmonic considerations.
• Reliability options.
• The differences between low voltage and medium voltage motor characteristics.
• Typical applications (note this would depend on the amount of time allowed for the presentation).

• Modern Starting Methods
  Overview of FVNR starters, SSS, and ASD
  Features and Compromises

  Importance of V/Hz Relationship

  ASD System Speed Torque Curves

  Unlimited Number of Starts & Stops

  Energy Savings

  Affinity Laws

  How does it compare to Damper or Guide Vane control

  Process Control (Speed & Torque Features)

  Other Advanced Very Useful features

  DC Injection Braking

  Dynamic Braking

  Torque Limiting

  Overspeeding a 230V motor on Oversized 460V ASD

  Application Examples

Using Variable frequency drives has become more prevalent in many industrial and commercial applications. This seminar will look at an innovative use for the VFD and its success story. Find out how a VFD saved money and time and received interest from various engineering and scientic communities. The details of over coming skepticism, testing and final implementation will be discussed in the seminar. A review of VFD technology and how a hydro utility charges for its services will preface the subject of savings with a VFD.

GENERAL INFORMATION

When and Where
The AC Drives Application and Maintenance forum will be held as follows:

Toronto, ON
Park Plaza Hotel
33 Carlson Court
[near the airport]
Tel: 416-675-1234

Vancouver, BC
Executive Airport Plaza Hotel & Conference Centre
7311 Westminster Hwy., Richmond
Tel: 604-278-5555

Edmonton, AB
The Coast Terrace Inn
4440 Gateway Blvd.
Tel: 780-437-6010

Saskatoon, SK
Saskatoon Inn
2002 Airport Drive
Tel: 800-667-8789

Winnipeg, MB
Victoria Inn
1808 Wellington Ave.
Toll Free: 1-877-842-4667
Tel: (204)786-4801

A special bedroom rate (non-commissionable) has been arranged with these hotels. To receive this rate, inform the hotel that you are a delegate with the Canadian Electricity Forum when making your reservation.