Transcript File
Electricity is most commonly defined as the movement of electrons from a negatively charged location to a positively charged location ELECTRICAL TERMS E I/R P I/E aka ELECTROMOTIVE FORCE (EMF), POTENTIAL CAN BE COMPARED TO THE PRESSURE IN A WATER LINE ELECTRICAL TERMS E I/R P I/E aka AMPS, CURRENT CAN BE COMPARED TO THE FLOW RATE IN A WATER LINE ELECTRICAL TERMS E I/R P I/E aka POWER THE TOTAL AMOUNT OF ELECTRICITY USED OR AVAILABLE VOLTS X AMPS = WATTS ALTERNATING CURRENT MOST ELECTRICITY USED IS AC CURRENT FLOWS FIRST ONE WAY, THEN THE OTHER ALTERNATING CURRENT POSITIVE HALF CYCLE NEGATIVE HALF CYCLE ALTERNATING CURRENT 1\60 SECOND 1 HERTZ 1 CYCLE FREQUENCY ALTERNATING CURRENT PRODUCED BY: POWER PLANTS GENERATORS ALTERNATORS DYNAMOS AC POWER DISTRIBUTION AC POWER DISTRIBUTION ! SAFETY GROUNDING provides a path to earth for lightning ELECTRICAL POWER DISTRIBUTION ! SAFETY Bonding Wire BONDING provides an alternate path to neutral The Power Distribution System DIRECT CURRENT CURRENT FLOWS ALWAYS IN THE SAME DIRECTION DIRECT CURRENT PRODUCED BY: BATTERIES DISSIMILAR METALS RECTIFIED AC LIGHTNING LEMONS STATIC EELS RECTIFIED AC RECTIFIED AC: COMUTATOR DIODES AC RECTIFIED AC aka DC AC/DC SUMMARY + + + SERIES CIRCUITS PARALLEL CIRCUITS SERIES/PARALLEL CIRCUITS 3 VOLTS 2X AMPS SERIES – PARALLEL CIRCUITS SWITCH OPEN WHAT WILL HAPPEN TO THESE BIRDS WHEN THE SWITCH IS CLOSED?? SERIES – PARALLEL CIRCUITS SWITCH CLOSED Voltage Drop & Resistance Since energy can not be created or destroyed, the electrical energy (voltage) that is “LOST” or “DROPPED” in a circuit is changed to: Or sometimes a combination of all three. RESISTANCE & VOLTAGE DROP HIGH RESISTANCE = LOW CURRENT / HIGH VOLTAGE DROP N S 110 -120 N 220 -240 110 -120 Most wind turbines, large or small, generate three phase AC power. This is the same type of electricity produced in your car alternator or a municipal power plant. Hmmmm! Seems like we could be using this magnetic field more efficiently! This end isn’t doing much But how do I hook them up? 3 PHASE DELTA INDUSTRIAL A A 120 240 480 B 240 B 195 480 240 240 480 N 120 C C 3 PHASE WYE COMMERCIAL A A 277 480 120 208 B B 480 208 208 480 120 277 C C 277 120 N N SAFETY A CURRENT FLOW OF .1 AMP OR LESS CAN CAUSE DEATH IF IT FLOWS THROUGH YOUR SAFETY If it doesn’t go through your heart, you’ll probably just wish you were DEAD!