Basic Electrical Power Fundamentals

Many problems encountered in service work are electrical problems or related to electrical problems.

Basic electrical power fundamentals.

Then we will step through each of these topics in detail. But what is electricity really. Suffice it to say that two of the tiny particles that make up atoms protons and electrons are the bearers of electric charge. Let s start with three very basic concepts of electricity.

Figure 1 1 shows the basic building blocks of an electric power system. 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. The purpose of this info tec is to help you understand the fundamentals of electrical systems. 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.

Understanding basic electrical theory. Ac current is produced by all electric utilities. Alternating current ac and direct current dc. 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.

Namely electric charge electric current and electric circuit. Section title page number introduction to electricity 3 characteristics 3 current 4 voltage 5 resistance 6 review 1 9 ohm s law 10. 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. It lights our way cooks our food and can even brush your teeth.

It s also important to know who is responsible for what portion of your electrical service. No single discovery has affected our lives our culture and our survival more than electricity. Electric charge refers to a fundamental property of matter that even physicists don t totally understand.