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Power Systems

Temperature Transducers: What Are They? (Types & Examples)

What is a Temperature Transducer? A Temperature Transducer is a device that converts the thermal quantity into any physical quantity such as mechanical energy, pressure and electrical signals etc. For example, in a thermocouple the electrical potential difference is produced due to temperature diffe

By Electrical4u 03/27, 2024
Power Systems

Linear Variable Differential Transformer LVDT

Definition of LVDT The term LVDT stands for the Linear Variable Differential Transformer . It is the most widely used inductive transducer that converts the linear motion into the electrical signal. The output across secondary of this transformer is the differential thus it is called so. It is very

By Electrical4u 03/27, 2024
Power Systems

Piezoelectric Transducer: Applications & Working Principle

What is Piezoelectric Transducer A piezoelectric transducer (also known as a piezoelectric sensor) is a device that uses the piezoelectric effect to measure changes in acceleration, pressure, strain, temperature or force by converting this energy into an electrical charge. A transducer can be anythi

By Electrical4u 03/27, 2024
Power Systems

Tan Delta Test | Loss Angle Test | Dissipation Factor Test

Principle of Tan Delta Test A pure insulator when is connected across line and earth, it behaves as a capacitor . In an ideal insulator, as the insulating material which acts as dielectric too, is 100 % pure, the electric current passing through the insulator , only have capacitive component. There

By Electrical4u 03/27, 2024
Power Systems

Polarization Index Test or PI Test

Polarization Index Test ( PI Value Test ) along with Insulation Resistance Test ( IR Value Test ) is conducted on HV electrical machine to determine service condition of the insulation. IP test is conducted especially to determine the dryness and cleanliness of the insulation. In insulation resistan

By Electrical4u 03/27, 2024
Power Systems

Transducer: Types of Transducers And What They Are

What is a Transducer? An electrical transducer is a device which is capable of converting physical quanties into a proportional electrical quantity such as voltage or electric current . Hence it converts any quantity to be measured into a usable electrical signal. This physical quantity which is to

By Electrical4u 03/27, 2024
Power Systems

AC Potentiometer

A potentiometer is an instrument which measures unknown voltage by balancing it with a known voltage . The known source may be DC or AC. The working phenomenon of DC potentiometer and AC potentiometer is same. But there is one major difference between their measurements, DC potentiometer only measur

By Electrical4u 03/27, 2024
Power Systems

Potentiometer: Definition, Types, And Working Principle

What is a Potentiometer? A potentiometer (also known as a pot or potmeter ) is defined as a 3 terminal variable resistor in which the resistance is manually varied to control the flow of electric current . A potentiometer acts as an adjustable voltage divider . How Does a Potentiometer Work? A poten

By Electrical4u 03/27, 2024
Power Systems

Measurement of Three Phase Power

Various methods are used for measurement of three phase power in three phase circuits on the basis of number of wattmeters used. We have three methods to discuss: Three wattmeters method Two wattmeters method Single wattmeter method . Let us discuss one by one each method in detail. Measurement of T

By Electrical4u 03/27, 2024
Power Systems

Electrodynamometer Type Wattmeter

Before we study the internal construction of electrodynamometer type wattmeter , it is essential to know the working principle of electrodynamometer type wattmeter. Dynamometer type wattmeter works on very simple principle and this principle can be stated as when any current carrying conductor is pl

By Electrical4u 03/27, 2024
Power Systems

Low Power Factor Wattmeter: What is it? (And Why is it Used)

What is a Low Power Factor Wattmeter? A low power factor meter is an instrument that is used to accurately measure low values of power factor. Before we study more about the low power factor meter , we need to understand why we need a low power factor wattmeter in the first place (as opposed to a st

By Electrical4u 03/27, 2024
Power Systems

Digital Frequency Meter

Digital frequency meter is a general purpose instrument that displays the frequency of a periodic electrical signal to an accuracy of three decimal places. It counts the number events occurring within the oscillations during a given interval of time. As the preset period gets completed, the value in

By Electrical4u 03/27, 2024

Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

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Temperature Transducers: What Are They? (Types & Examples)

Linear Variable Differential Transformer LVDT

Piezoelectric Transducer: Applications & Working Principle

Tan Delta Test | Loss Angle Test | Dissipation Factor Test

Polarization Index Test or PI Test

Transducer: Types of Transducers And What They Are

AC Potentiometer

Potentiometer: Definition, Types, And Working Principle

Measurement of Three Phase Power

Electrodynamometer Type Wattmeter

Low Power Factor Wattmeter: What is it? (And Why is it Used)

Digital Frequency Meter

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