Measuring tool is a tool that can be used to determine the results of the comparison between a quantity you want to know the standards used.<\/span> An important function of the measuring instrument in particular measuring devices of electrical quantities is to know the value that has been determined as eligible limitation or failure of equipment or electricity network will be operated.<\/span> In our measurements a quantity mem-compare with the amount of the standard.<\/span> So that the measurements need to know the amount, units and dimensions.<\/span><\/p>\n Magnitude is something that can be measured.<\/span> The amount consists of: (1) The amount of the base;<\/span> ie, the amount of which does not depend on the size of the other, and (2) The amount of the derivative;<\/span> is the amount derived from the basic magnitudes, and a combination of the magnitude of the base.<\/span> Power generation, power grids, power distribution and utilization of electric power unit relating denganbesaran and determine its size.<\/span><\/p>\n Therefore, before we deepen all the problems in the electricity business, you should explore in advance of the standard units used universally applicable in order to apply them correctly.<\/span> For science and technology, the units can be regarded as currency.<\/span> With currency transactions you can do anything, anytime, and anywhere.<\/span><\/p>\n Likewise with the unit.<\/span> There are two systems of units that can be used, namely (1) the International System, commonly known as SI units, and (2) System Imperial (English), which is a unit system that applies in Europe.<\/span> SI unit system most widely used around the world, and this book, apply both the unit system.<\/span> 1960 on international agreements designated as the international system (SI).<\/span><\/p>\n SI system used six basic unit, namely meter, kilogram, second, and ampere (MKSA) and as an additional base unit is degrees Kelvin and a candle (candela) is a unit of temperature and light intensity, as shown in Table 10.1.<\/span><\/p>\n Table 10.1 Basic Unit<\/span> Other units that can express the fundamental units called derivative units.<\/span> To ease some of the derivatives unit has been given a new name, for example in the SI called watt power which replaces the j \/ s.<\/span> Table 10.2 shows that beralku derived unit in the techniques of electricity.<\/span><\/p>\n
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