Electricity Generation Spring, 2013 - Tom Murphy · 2013-04-24 · Electricity Generation Spring,...

Electricity Generation Spring, 2013

Lecture 9 1

UCSD Physics 12 UCSD Physics 12

Spring 2013 2

UCSD Physics 12

Spring 2013 3

UCSD Physics 12

Spring 2013 4

Electricity Generation Spring, 2013

Lecture 9 2

UCSD Physics 12

Spring 2013 5

UCSD Physics 12

Spring 2013 6

UCSD Physics 12

Spring 2013 7

UCSD Physics 12

Spring 2013 8

Electricity Generation Spring, 2013

Lecture 9 3

UCSD Physics 12

Spring 2013 9

UCSD Physics 12

Spring 2013 10

UCSD Physics 12

Spring 2013 11 High Voltage Transmission Lines Low Voltage to Consumers

step-up to 500,000 V

~5,000 Volts step-down,

back to 5,000 V

step-down to 120 V

UCSD Physics 12

Spring 2013 12

three-phase “live” wires

500,000 230,000 138,000 69,000 7–13,000 long-distance neighborhood

to house

Electricity Generation Spring, 2013

Lecture 9 4

UCSD Physics 12

Spring 2013 13

UCSD Physics 12

Spring 2013 14

UCSD Physics 12

Spring 2013 15