General basics of electricity.

1. Basics Of Electricity

4. Basics Electrons Electrons are the smallest and lightest of the particles in an atom. Electrons are in constant motion as they circle around the nucleus of that atom. Electrons are said to have a negative charge, which means that they seem to be surrounded by a kind of invisible force field. This is called an electrostatic field. Protons They are much larger and heavier than electrons. Protons have a positive electrical charge. This positively charged electrostatic field is exactly the same strength as the electrostatic field in an electron, but it is opposite in polarity. Notice the negative electron and the positive proton have the same number of force field lines in each of the diagrams. In other words, the proton is exactly as positive as the electron is negative.

9. Volts, Amps, Ohms – Simple! Air tool Air tank Air Valve V - voltage Pressure I - current Ω (Ohm) - Resistance Air Flow

18. AC / DC In the DC circuit current flows in one direction. On the other hand the AC power sources “pump” current “back and forth”.

19. AC vs. DC signal

20. RMS (don’t confuse with True RMS!)

26. Where Gabriel Fahrenheit was Born? German physicist Gabriel Fahrenheit was born in Gdansk (Danzig), Poland There are a few competing versions of the story. One of them states that Fahrenheit recorded the lowest outdoor temperatures he could measure during harsh winter of 1708 through 1709 in his hometown of Danzig (now Gdańsk, Poland ) (−17.8 °C) as his zero point. He was later able to reach this temperature under laboratory conditions using a mixture of ice, sodium chloride and water. Temperature What reference Fahrenheit used to establish 0 degrees on his scale?

31. 2 + 2 = 4? S - apparent power, P – active power, Q - reactive power The first formula is only valid for non-distorted waveforms

44. Harmonics Readings

48. Before we go to perform some hands on training, lets learn about product safety…

49. Electrical Shock *Effects vary depending on time, path, amount of exposure and condition of body. Current in mA Effect on Body 8 or less Sensation of shock but probably not painful 8 to 15 Painful shock 15 to 20 Painful shock, may be frozen or locked to point of electric contact until circuit is de-energized Over 20 Causes severe muscular contractions, paralysis of breathing, heart convulsions

50. Product Safety Rule #1: After work go home Rule #2: Use safe meters to accomplish Rule #1

56. Prefixes