Introduction to Correction calibration
All measuring instruments are to prove themselves their ability to measure reliably and accurately. For this, the results of measurement are to be compared with higher standards which are traceable…
Power Plants and Types
What is Power Plant? A power plant or a power generating station, is basically an industrial location that is utilized for the generation and distribution of electric power in mass scale, usually in the order…
Why Measure Voltage?
● If you are an Electrical Engineering student: ○ Voltage is a fundamental quantity that is important in every phase of electrical engineering from power systems to voltages inside VLSI chips. ● If…
Neutral wire size or cross sectional area requirements as per Electrical Standard.
The neutral wire size or cross sectional area requirement in the circuit is a tricky thing to handle. The phase conductor size is decided simply as per ampacity, temperature and…
Inrush current in transformer – impact and how it happens.
Inrush current in transformer occurs when it is shifted from offline to online. The offline residual flux stored in core sum up with the operating flux causes excessive inrush current.…
Why there is humming noise in transformer.
Transformer makes some noise like humming or buzzing. In some case the noise is very much loud. This is mainly because of dc offset current in the supply current and…
Insulation resistance test of alternator – how to do safely.
The insulation resistance test of alternator is very important. The IR test must be done in regular interval of minimum 6 month. Plus any time IR test may be needed…
The I2C Bus: Hardware Implementation Details
Essential information for understanding and designing the hardware needed for an I2C bus. Sometimes a Little Complexity Is a Good Thing The I2C protocol is notable for some less-than-straightforward characteristics:…
Introduction to Capacitive Touch Sensing
In this article, we will take a detailed (but not too detailed) look at the electrical principles that allow us to detect the presence of a human finger using little…
How Low Can You Go? Measuring Small Voltages with a DMM
Understanding the relationship between resolution and accuracy will help you determine how small a voltage, current, or resistance—or how small a change in those values—you can actually measure with your…
