What Is the Difference Between Electrical Poles & Phases?

Electricity is usually transported as part of a three-phase alternating current system.
••• electricity image by toki from Fotolia.com

In electrical engineering, many terms are used to describe how electrons and electricity behave. "Poles" and "phases" are used to describe very different aspects of electricity. "Poles" are fundamental to understanding how electricity is created; "phases" describes an aspect of alternating current.

Electrical Poles

Electrical poles describe electrical charge, which can be positive, negative or neutral. In an atom, protons are positively charged and electrons are negatively charged. Electrical current is caused by the flow of negatively charged electrons around a conductive material, usually propelled by a magnet whose magnetic poles cause the electrons to move. This is why batteries have positive and negative ends -- negatively charged electrons are attracted to the positive end and must run through the circuit to get there.

Electrical Phases

Electrical phases apply to alternating current and describe the rate at which the voltage of a given current oscillates as it is produced. "Three phase" electricity is how most domestic electricity is delivered to homes. The phases are kept 120 degrees apart so that one phase is always at a peak at any given time.

Summary

An electric "pole" describes an electric charge determined by the number of protons and electrons in a given atom. An electric "phase" describes the rate at which the voltage in an alternating current oscillates.

Related Articles

Batteries Rely on What to Separate Positive & Negative...
How to Calculate Induced Armature Voltage
How to Measure Wattage With a Multimeter
How to Test a 3-Phase Motor With a Multi-Meter
How to Calculate Cost of Electricity for Electric Motor...
10 Questions About Electricity
How to Convert 240 Single Phase to 480 3 Phase
How to Charge a 12V Battery With a DC Motor
How to Calculate 3-Phase Line-To-Ground Voltage
What Is an AC Motor Capacitor?
How to Convert KVA to KW 3-Phase
How to Calculate Coulombs
How to Get 120V From a 208V 3 Phase
How to Use a 12V Diode to Prevent Backfeed
What are Latitude & Longitude?
How Do I Convert Amps to Kw 3 Phase?
How a Three-Phase Motor Works
How a Lemon Clock Works
How Long Is Each Moon Phase?

Dont Go!

We Have More Great Sciencing Articles!