Electrical Engineering Guides

Power Systems

Energy Meter with Lag Adjustment Devices

We know that in induction type energy meters , in order to maintain speed of rotation proportional to power “The phase angle between supply voltage and pressure coil flux should be equal to 90 o “. However in actual practice, the angle between supply voltage and pressure coil flux is exactly not 90

By Electrical4u 03/28, 2024
Power Systems

How to Measure Electrical Energy: A Comprehensive Guide

Electrical energy is a fundamental concept in physics and engineering, as well as a practical necessity for everyday life. Electrical energy is the amount of work that can be done by an electric current , or the amount of heat that can be produced by an electric resistance . Electrical energy is als

By Electrical4u 03/28, 2024
Power Systems

Schering Bridge Measurement of Capacitance using Schering Bridge

Schering Bridge Theory This bridge is used to measure to the capacitance of the capacitor, dissipation factor and measurement of relative permittivity. Let us consider the circuit of Schering bridge as shown below: Here, c 1 is the unknown capacitance whose value is to be determined with series elec

By Electrical4u 03/28, 2024
Power Systems

Owens Bridge Circuit and Advantages

We have various bridges to measure inductor and thus quality factor, like Hay’s bridge is highly suitable for the measurement of a quality factor greater than 10, Maxwell’s bridge is highly suitable for measuring medium quality factor ranging from 1 to 10, and Anderson bridge can be successfully use

By Electrical4u 03/28, 2024
Power Systems

Maxwell Inductance Capacitance Bridge: Diagram & Applications

What is Maxwell Bridge A Maxwell Inductance Capacitance Bridge (known as a Maxwell Bridge) is a modified version of a Wheatstone bridge which is used to measure the self-inductance of a circuit. A Maxwell bridge uses the null deflection method (also known as the “bridge method”) to calculate an unkn

By Electrical4u 03/28, 2024
Power Systems

Anderson′s Bridge | Advantages Disadvantages of Anderson′s Bridge

Anderson’s Bridge Let us understand why there is a need for Anderson’s bridge though we have Maxwell bridge and Hay’s bridge to measure the quality factor of the circuit. The main disadvantage of using Hay’s bridge and Maxwell bridge is that they are unsuitable for measuring the low-quality factor.

By Electrical4u 03/28, 2024
Power Systems

Kelvin Bridge Circuit | Kelvin Double Bridge

Before we introduce Kelvin Bridge , it is very essential to know what is the need of this bridge, though we have Wheatstone bridge which is capable of measuring electrical resistance accurately (usually an accuracy of around 0.1%). To understand the need of Kelvin bridge we must first recognize 3 im

By Electrical4u 03/28, 2024
Power Systems

Wheatstone Bridge Circuit Theory and Principle

Wheatstone Bridge For measuring accurately any electrical resistance Wheatstone bridge is widely used. There are two known resistors , one variable resistor and one unknown resistor connected in bridge form as shown below. By adjusting the variable resistor the current through the Galvanometer is ma

By Electrical4u 03/28, 2024
Power Systems

Blavier Test | Murray Loop Test | Varley Loop Test | Fisher Loop Test

Blavier’s Test is used to find the earth fault location in an underground cable. The two ends faulty cable are mentioned as sending end and far end respectively as shown in fig 1. In this test, the sending end of the cable must be open and isolated and the resistance between sending end and earth po

By Electrical4u 03/28, 2024
Power Systems

De Sauty Bridge

This bridge provide us the most suitable method for comparing the two values of capacitor if we neglect dielectric losses in the bridge circuit. The circuit of De Sauty’s bridge is shown below. Battery is applied between terminals marked as 1 and 4. The arm 1-2 consists of capacitor c 1 (whose value

By Electrical4u 03/28, 2024
Power Systems

Heaviside Bridge Circuit

Before we introduce this bridge let us know more about the uses of mutual inductor in bridge circuits. Now one question must arise in our mind that why we are so much interested in mutual inductance , answer to this question is very simple we will use this mutual inductor in Heaviside bridge circuit

By Electrical4u 03/28, 2024
Power Systems

Hay’s Bridge: A Method for Measuring Self-Inductance

Hay’s bridge is a type of AC bridge circuit that is used to measure the self-inductance of a coil with a high-quality factor (Q 10). It is a modified version of Maxwell’s bridge, which is suitable for measuring coils with a medium quality factor (1 Q 10). In this article, we will explain the constru

By Electrical4u 03/28, 2024

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

All

Energy Meter with Lag Adjustment Devices

How to Measure Electrical Energy: A Comprehensive Guide

Schering Bridge Measurement of Capacitance using Schering Bridge

Owens Bridge Circuit and Advantages

Maxwell Inductance Capacitance Bridge: Diagram & Applications

Anderson′s Bridge | Advantages Disadvantages of Anderson′s Bridge

Kelvin Bridge Circuit | Kelvin Double Bridge

Wheatstone Bridge Circuit Theory and Principle

Blavier Test | Murray Loop Test | Varley Loop Test | Fisher Loop Test

De Sauty Bridge

Heaviside Bridge Circuit

Hay’s Bridge: A Method for Measuring Self-Inductance

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