Earthing does not guarantee that humans will be safe when they come into contact with live conductors. Although relays may be installed to detect earth leakages, typically their settings are …
Many new electrical engineers are unaware of the use of sinusoids and phasors when they analyze AC circuits. In this article, we’ll explain how these can be used in analyzing …
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 …
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 …
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 …
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 …
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 …
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 …
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 …