The Grand Rapids Community College Mathematics Department will host its next Mathematics Seminar on Tuesday, March 19, 3:00 – 4:00 PM in 107 Cook. Our speaker will be GRCC Adjunct Mathematics Instructor Roger Berry. The title and abstract for Roger’s talk are at the bottom.
Mathematics plays a crucial role in determining safety standards for all manner of electronics, and is an indispensable tool for analyzing causes and consequences of electrical failure. Roger brings many years of experience as an electrical engineer and instructor to this month’s seminar. Knowledge of algebra will be helpful, but of course everyone is welcome to attend.
Pop and cookies will be served a 2:45 PM.
Catastrophic Electrical Damage took place — let’s check the Math to see why!
All protection from damage or injury due to electrical faults begins with determining the amount of potential fault current. Mechanical and thermal energy released in less than 4 milliseconds can produce catastrophic results. Electrical equipment and protective devices must be tested and rated to withstand the potential forces involved.
Electrical designs are evaluated for worst-case conditions to insure that equipment and people are adequately protected. Fault currents on both sides of the decimal point can result in destructive forces. Short circuits can result in destructive currents over 200,000 amps producing a blast that results in equipment damage and potential injury to personnel due to flash burns and sound, while ground faults as low as five milliamps can produce fibrillation resulting in death. In addition, lower level arcing faults can destroy electrical equipment or start a fire.
How do we do the math?