There are several types of flow meters in the market these days. Most of them use complicated technologies to measure the volumetric flow, linear, nonlinear, and the mass flow rate …
Continue ReadingThings You Should Know About Electromagnetic Flow Meters
In this article, you will learn about four different types of damping systems namely air friction damping, fluid friction damping, eddy current damping and electromagnetic damping. Before going into the …
Continue ReadingDamping Systems – Air friction, Fluid Friction & Eddy Current Damping
The electrodynamometer is a transfer-type instrument. A transfer-type instrument is one that may be calibrated with a dc source and then used without modification to measure AC. This requires the …
Continue ReadingElectrodynamometer Instruments – Ammeter, Voltmeter and Wattmeter
The most common ammeters and voltmeters for laboratory or switch-board use at power frequencies are the moving iron instruments. These instruments can be constructed to measure current and voltage to …
Continue ReadingMoving Iron Instruments – Attraction and Repulsion Type
The permanent magnet moving coil instrument is the most accurate type of DC measurement. It is one of the two types of moving coil instruments used to measure dc work …
Continue ReadingPermanent Magnet Moving Coil (PMMC) Instrument
The open-loop control system and closed-loop control system are the two types of control systems that you will learn in this article with the help of 4 practical examples from …
Continue ReadingOpen Loop and Closed Loop Control System (4 Practical Examples Included)
This article covers transformer impedance testing, one of the acceptances tests for new transformers, and a method for routine testing. The results of this test should compare directly to the …
Continue ReadingHow to Test Percentage Impedance of Transformer?
This article explains the measurement of three-phase power in star connected or delta connecter load using the wattmeter methods. The power in a three phase load can be measured by …
Continue ReadingMeasurement of Three Phase Power | Wattmeter Methods
A current transformer (CT) is a type of transformer that is used to measure AC current. It produces an alternating current (AC) in its secondary which is proportional to the AC …
Continue ReadingCurrent Transformer (CT) – Construction and Working Principle