Electrical Power Systems Technology

10 Electrical Power Systems Technology Small Units The measurement of a value is often less than a whole unit, for ex- ample 0.6 ...

Power Measurement Fundamentals 11 Table 1-5. Prefixes of Large Units —————————————————————————————— Prefix Abbreviation Number o ...

12 Electrical Power Systems Technology Figure 1-1. Simple conversion for large or small numbers ...

Power Measurement Fundamentals 13 Table 1-6 lists some of the powers of 10. In a whole-number power of 10 , the power to which 1 ...

14 Electrical Power Systems Technology Table 1-7. Common Units ———————————————————————————————— Quantity SI Unit Symbol ———————— ...

Chapter 2 Power System Fundamentals One of the most important areas of electrical knowledge is the study of electrical power. Co ...

16 Electrical Power Systems Technology Electrical Power Conversion Electrical Power Control Electrical Circuits Resistive Induct ...

Power System Fundamentals 17 Reactive Power (VARs) Three-phase System Wye Configuration Delta Configuration Line Voltage (VL) Ph ...

18 Electrical Power Systems Technology electrical systems is in use today. Each system has a number of unique features, or chara ...

Power System Fundamentals 19 ical energy are considered as primary sources of energy. A primary energy source usually goes throu ...

20 Electrical Power Systems Technology Figure 2-2. Distribution path for electrical power from its source to where it is used ( ...

Power System Fundamentals 21 tem, in order to make measurements. Test lights, meters, oscilloscopes, chart recorders, and digita ...

22 Electrical Power Systems Technology The load of a flashlight is a small incandescent lamp. When electri- cal energy from the ...

Power System Fundamentals 23 Sample Problem: Work Work is done whenever a force (F) is moved a distance (d), or: W = F × d, wher ...

24 Electrical Power Systems Technology or line. The object has a mass of 150 kg and is moved 28 meters in 8 sec- onds. Find: The ...

Power System Fundamentals 25 called electrical loads, convert electrical power into some other form, such as light, heat, or mec ...

26 Electrical Power Systems Technology POWER IN DC ELECTRICAL CIRCUITS In terms of voltage and current, power (P) in watts (W) i ...

Power System Fundamentals 27 When working with electrical circuits, you can check your results by using other formulas. Power in ...

28 Electrical Power Systems Technology Power converted by resistor R 2 : V^2 302 900 P 2 = — = —— = —— = 90 W R 2 10 10 ...

Power System Fundamentals 29 There are 1000 W in a kilowatt (1000 W = 1 kW). Multiply the kW that the heater has used by the ho ...