Basic Electrical Power Fundamentals

Figure 1 1 shows the basic building blocks of an electric power system.

Basic electrical power fundamentals. Basic electrical power fundamentals load reference kilowatts kilovolt amps power factor pf motors kw kva use nec 430 148 kw kva 6 95 and 430 150 to find current for given hp indancescant lighting use actual wattage kw kva 1 0 fluorescent lighting use 50va per 4 foot kw kva 95. The system starts with generation by which electrical energy is produced in the power plant and then transformed in the power station to high voltage electrical energy that is more suitable for efficient long distance transporta tion. Section title page number introduction to electricity 3 characteristics 3 current 4 voltage 5 resistance 6 review 1 9 ohm s law 10. Let s start with three very basic concepts of electricity.

No single discovery has affected our lives our culture and our survival more than electricity. Knowledge of the fundamentals of electricity and application is increasingly necessary not only for those of us who work in the electric power industry but also for the general public. Understanding basic electrical theory. The purpose of this info tec is to help you understand the fundamentals of electrical systems.

Ac current is produced by all electric utilities. In this four module program on electrical fundamentals we introduce for study the general physics or basic natural laws that govern the use of electricity. Then we will step through each of these topics in detail. It s also important to know who is responsible for what portion of your electrical service.

People depend on electricity constantly and when the power goes out in a storm or there s a tripped breaker or another problem in an electrical circuit understanding the basic components of an electrical system can help you get things running again. Electric charge refers to a fundamental property of matter that even physicists don t totally understand. But what is electricity really. 2 fundamentals of electricity we will start with an overview to introduce you to the main points about these devices and the parts that make them.

Alternating current ac and direct current dc. Many problems encountered in service work are electrical problems or related to electrical problems. There are two types of electrical current in common use today.