Frequency
If the loop is rotated at the speed of 2 revolutions each second, the resultant EMF will complete 2 cycles each second. The number of cycles each second is referred to as frequency.
The symbol for frequency is ( f ). It is measured in cycles per second ( CPS ) or more commonly Hertz ( Hz ). The time in which one cycle is completed is known as the periodic time. A frequency of 50 Hz is the standard for the supply system in Ireland.
The frequency of a supply can be calculated as follows:
Example 1
An alternating voltage waveform has a periodic time of 4 mS. Calculate the frequency of the supply?
Solution
Related posts:
INTERLOCKING MOTORS
Programming A Plc:Entering the Program
Induction motor:Induction Motor Operating as a Generator
HOW THE MOTOR WORKS
INTRODUCTION TO THE SYSTEMS VERSUS COMPONENTS VIEW OF ELECTRONICS
PSYCHROMETRIC CHART FUNDAMENTALS:HUMIDIFYING PROCESS
Switch principles:AC and DC switching
Motor Calculations part3
UNBALANCED SUPPLY VOLTAGES
Motor Calculations part5
Motor Calculations part4
Environmental sensors:Moisture
GENERATOR SURVEILLANCE AND TESTING:GENERATOR OPERATIONAL CHECKS (SURVEILLANCE AND MONITORING)
ELECTRONIC GADGETS AND HOME APPLIANCES – XEROGRAPHY