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Power Systems

Analysis of Partial Discharge Principle

Analysis of Partial Discharge Principle (1) Under the action of an electric field, in an insulation system, discharge occurs only in some regions and does not penetrate between the conductors with the applied voltage. This phenomenon is called partial discharge. If partial discharge occurs near a co

By Leon 07/19, 2025
Power Systems

What Is an Energy Meter and What Are Its Construction Working Principle？

Definition: An energy meter is a device used to measure the electrical energy consumed by an electrical load. Electrical energy refers to the total power consumed and utilized by a load over a specific period of time. Energy meters are used in domestic and industrial AC circuits to measure power con

By Edwiin 07/18, 2025
Power Systems

Reactive Power Definition Measurement and Varmeter Principles

The power which exists in the circuit when the voltage and current are out of phase to each other, such type of power is known as the reactive power. The formula measures the reactive power in the circuit Reactive Power Measurement Varmeters Reactive power measurement is critical as it indicates cir

By Edwiin 07/17, 2025
Power Systems

Permanent Magnet Moving Coil or PMMC Instrument

Definition Instruments that utilize a permanent magnet to generate a stationary magnetic field within which a coil moves are known as Permanent Magnet Moving Coil (PMMC) instruments. They operate on the principle that torque is exerted on a moving coil situated in the magnetic field of a permanent m

By Edwiin 05/30, 2025
Power Systems

What is the Difference Between Shunt Reactor and Shunt Capacitor?

In an electrical power system, various devices are utilized to enhance power factor and operational efficiency. Shunt capacitors and shunt reactors represent two distinct components designed to optimize the performance of electrical grids. This article explores their key differences, beginning with

By Edwiin 05/30, 2025
Power Systems

Difference Between Current Transformer & Potential Transformer

For long-distance electrical power transmission, the voltage and current levels are extremely high, making direct measurement with conventional meters impossible. Instrument transformers, including current transformers (CTs) and potential transformers (PTs), are used to step down these levels to saf

By Edwiin 05/22, 2025
Power Systems

Deflection Type Instrument

Definition Instruments in which the measured quantity generates physical effects that deflect or displace the moving system are known as deflection-type instruments. In other words, these instruments use the deflection of a moving component as the basis for measuring electrical quantities, making th

By Edwiin 05/16, 2025
Power Systems

What is Hygrometer？

Definition A hygrometer is used to measure the humidity in the surrounding environment, where "humidity" refers to the amount of water vapor in a gas. Hygrometers operate on the principle that the physical properties of materials change in response to humidity, enabling measurement. Humidity is clas

By Edwiin 05/16, 2025
Power Systems

Photoelectric Transducer

Definition A photoelectric transducer is a semiconductor device that converts light energy into electrical energy. It employs a photosensitive element that emits electrons when struck by light, altering the element rsquo;s electrical properties and inducing a current proportional to the intensity of

By Edwiin 05/16, 2025
Power Systems

Measurement of Resistance using Potentiometer

DC Potentiometer Method for Resistance Measurement The DC potentiometer method is employed to measure low-value unknown resistances by comparing them with a standard resistance. This involves measuring the voltage drops across both the known (standard) and unknown resistances, then determining the u

By Edwiin 05/16, 2025
Power Systems

Platinum Resistance Thermometer

Definition A Platinum Thermal Resistance (PTR), also known as a Platinum Resistance Thermometer (PRT), utilizes platinum as the sensing material to measure temperature. Its operation is grounded in the principle that the electrical resistance of platinum varies predictably with temperature changes.

By Edwiin 05/15, 2025
Power Systems

Hot Wire Anemometer

Definition A Hot Wire Anemometer is a device used to measure the velocity and direction of a fluid flow by quantifying the heat loss from a heated wire exposed to the fluid stream. The wire is heated via an electric current, and its temperature change mdash;caused by heat transfer to the fluid mdash

By Edwiin 05/15, 2025

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

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Analysis of Partial Discharge Principle

What Is an Energy Meter and What Are Its Construction Working Principle？

Reactive Power Definition Measurement and Varmeter Principles

Permanent Magnet Moving Coil or PMMC Instrument

What is the Difference Between Shunt Reactor and Shunt Capacitor?

Difference Between Current Transformer & Potential Transformer

Deflection Type Instrument

What is Hygrometer？

Photoelectric Transducer

Measurement of Resistance using Potentiometer

Platinum Resistance Thermometer

Hot Wire Anemometer

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