EET-226 Lecture Notes - Lecture 4: Electrical Engineering Technology, Electrical Network, Series And Parallel Circuits
Document Summary
Electrical engineering can be summarized into four main categories: the production of electrical energy, the transmission of electrical energy, the application of electrical energy, the control of electrical energy. A basic electrical system has four constitutional parts as follows: the source. The function of the source is to provide the energy for the electrical system. A source is thought of as a battery or a generator: the load. The function of the load is to absorb the electrical energy supplied by the source. Common examples of loads include lamps and heaters: the transmission system. This conducts the energy from the source to the load. Typical transmission system consists of insulated wires: the control system. As the name suggests, its function is to control. The most simple control is a switch which permits the energy to flow or else interrupts the flow of electrons.