Basic Electrical Installation Work

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10. large Power Stations and distributed around the United Kingdom the National Grid the end user. Key Fact Definitions ● Try remember these a.c. supply because easy change the voltage levels using a transformer. Rotating simple loop wire coils wire between the poles mag- net such that shown simplified Fig. This a.1 Simple a. elec- tricity has many applications where portability emergency stand-by supply important but for large quantities power has an a.Baisc Electrical Installation Work 194 Alternating current theory Commercial quantities electricity for industry, commerce and domes- tic use are generated a.c.1 except that powerful electromagnets are used and the power for rotation comes from steam turbine. generator alternator. 10. Cathode ray oscilloscope Rotation N S Carbon brushes Slip rings FIGURE 10. supply generated Power Station exactly the same Fig. Let first define some our terms of reference.c.1 will cut the north south lines of magnetic flux and induce a. supply, alternating current supply.c. The d. voltage the loop coils wire as shown the display cathode ray oscilloscope. The basic principle of the a.c.c. . circuit definitions ● Write them down helps.c. In this section will first all consider the theoretical circuits pure resistance, inductance and capacitance acting alone a.c.c. circuit before going consider the practical circuits resistance, inductance and capacitance acting together