Hello All, Welcome to my weekly newsletter. I will regularly post articles about power studies and relays events, specifically hidden flaws found on those.
One of the Achilles heels of power engineering is electrical myths, partially true statements, misleading statements, incomplete statements.
I hate, dislike, despise those statements. They are dangerous.
Some believe such statements; they give us a false sense that we understand what we do. However, 20% of the time, we will get in trouble.
If a statement is not true all the time, it is not a valid statement (there are rare exceptions).Â
Look at this long list below of misleading, incomplete, inaccurate statements. You will find them in some books, on google, on youtube.
1- Current tries to go to ground
2- Current takes the path of least resistance
3- A 100A rated low voltage breaker is designed to trip if the current goes above 100A.
4- A differential relay is faster than an overcurrent relay
5- A transformer high voltage is the primary side of the transformer.Â
7- Grounding rod in electrical systems makes an individual safer
8- reducing the fault current will reduce the arc flash calories
9- A 3 phase fault is the worst condition on a system
10- We ground a system to remove a ground fault
Many more statements.
We need to debunk myths, and in some cases, we need to complete partially factual statements.
We will address each myth in the upcoming articles as well as discuss SEL events and power studies.