Different Types of Transformers
A transformer is an extended version of an inductor. The flux that is created inside the inductor is used here to induce voltages at other coil, which is termed as…
Transformer Energy Losses & Efficiency
Transformers reduce the voltage of the electricity supplied by the utility to a level suitable for use by the electric equipment. Since all of the electricity used by a company…
How to Measure Duty Cycle using Multimeter
Duty cycle basics Duty cycle is the ratio of time a load or circuit is ON to the time a load or circuit is OFF. A load that is turned…
How to do Continuity Testing using Multimeter
Continuity Testing using Multimeter Turn the dial to Continuity Test mode ( ). It will likely share a spot on the dial with one or more functions, usually resistance (Ω).…
How to Measure AC Voltage using Multimeter
1. Turn the dial to á¹½. Some digital multimeters (DMMs) also include m á¹½ . If voltage in the circuit is unknown, set the range to the highest voltage setting…
How to measure frequency using Multimeter
If your digital multimeter offers a frequency setting (Hz is the symbol) on the dial: Turn the dial to Hz. It usually shares a spot on the dial with at…
How to Measure capacitance using Multimeter
A multimeter determines capacitance by charging a capacitor with a known current, measuring the resulting voltage, then calculating the capacitance. Warning: A good capacitor stores an electrical charge and may…
How to Test Diodes Using Multimeter
How to test diodes Digital multimeters can test diodes using one of two methods: Diode Test mode: almost always the best approach. Resistance mode: typically used only if a multimeter…
Types of AC Motors and DC Motors
Electric motor is a machine which converts electric energy into mechanical energy. Its action is based on the principle that when a current-carrying conductor is placed in a magnetic field,…
Squirrel Cage Induction Motor Animation
Stator view Three-phase sinusoidal balanced excitation in 3 stator phases produces a sinusoidally distributed field rotating at the excitation frequency ωs. This field can be viewed as being created by…
