KNOWARE  

Software for Education and Industry

This computer program on CD explains 3 Phase electricity in 15 interactive screens of text, graphics, and animation.  Three phase electricity is used in virtually every electrical power distribution system.

The program is recommended for electricians, technicians, engineers, and anyone else who want to understand 3 phase electricity.

Some knowledge of electrical voltage and current is assumed, and a familiarity of 1 phase electricity is helpful but not required.

This program was written by a Professional Engineer who has taught electrical engineering technology for 18 years.

What you will learn...

• The difference between 3 phase electricity and single phase
• What is a line and what is a phase
• Delta and wye connections
• How to determine line currents and phase currents in a delta and a wye
  
• How to determine line voltages and phase voltages in a delta and a wye
  
• How to calculate 3 phase power
• Where the square root of 3 comes from
• What are vectors and phasors and why are they important
• How 3 phase electricity is made
• What are balanced and unbalanced loads
• What does the neutral wire do
• Advantages of 3 phase electricity over single phase
• What phase sequence is and why it is important
• Common  3 phase connections including delta-delta, delta-wye, and open-delta.

Example screen showing phasors scribing out 3 phase electricity

Hardware/Software Requirements:

• IBM® 486 or higher compatible computer
• Windows® 95, or greater, including XP and Vista®.  If Windows NT 4.0, Service Pack 3 or greater must be installed.
  
• Minimum of 64 megabyte of RAM memory.
• Minimum of 25 megabyte of available hard disk space.
• 1024 x 768 or higher screen video capability.
• CD-ROM drive