Harmonic distortion has always been a problem for electrical engineers as it leads to heavy power loss in AC induction motors and transformers. These losses in AC induction motors leads to excessive heating, which happens because of additional copper losses and iron losses (eddy current and hysteresis losses) in the stator winding, rotor circuit, and rotor laminations. This…
Anyone who deals with electronics will have come across waveform generator circuits like rectangular waveform generator, square wave generator, pulse wave generator, etc. Similarly, Bootstrap Sweep Circuit is a sawtooth waveform generator. Generally, the Bootstrap Sweep circuit is also called as Bootstrap Time Based generator or Bootstrap Sweep Generator.
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Soil health monitoring, irrigation scheduling, hi-tech greenhouses, evapotranspiration studies, watershed management, land reclamation, drought, flood forecasting, etc. play a vital role in farming. Farmers in India have been facing a lot of problems in terms of real-time and on-field data analytics. Undoubtedly, there are certain companies that offer the solution but the…
For the last many years, automobile manufacturers have turned their attention towards self-driven cars. It all became serious when Google launched its self-driving car project (Wamyo) in 2009. A few years later, Elon Musk announced Tesla would build a self-driving system into its cars and in November 2018, Tesla launched a feature called Navigate on Autopilot. By 2013, major…
Direct Online Starter or DOL is a simple electromechanical system designed for switching and protection of Induction motors.
We all know that motors consume electric power horribly and this high power consumption is the result of current drawn by the winding of the motor. So higher the current drawn by the motor, the higher will be the power…
A superheterodyne receiver uses signal mixing to convert the input radio signal into a steady intermediate frequency (IF) that can be worked with more easily than the original radio signal, which has a different frequency, depending on the broadcasting station. The IF signal is then amplified by a strip of IF amplifiers and then fed into a detector that outputs the audio…
Transport is one of the major contributors to global warming, representing more than 23% of global energy-related carbon dioxide emissions. Today, Electric Vehicles are looked upon as an alternative green way of commutation but to make EVs more affordable and practical, we need much more efficient batteries and battery-charging technology.
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We know that voltage, current, and power are measured in volts, amps and, watts and voltmeter, ammeter, and wattmeter are used to measure these parameters. Though these measuring instruments are manufactured with the care they may still give error readings at the customer end. So these instruments are calibrated to minimize the error. Here in this article, we will explain…
A True-RMS or TRMS is a type of converter which converts RMS value to equivalent DC value. Here in this tutorial, we will learn about true RMS to DC converter, how it works and how measurement methods can affect displayed results.
What is RMS?RMS is the abbreviation of Root Mean Square. By definition, for alternating electric current, the RMS value…
In today’s case study, we have a cement plant, where four dilution air fans (2 fans in each of the 2 units of the kiln) of 225 KW and 744 RPM is under operation. After five years of operation, one of the current motor (fan) was planned to be replaced with the spare motor which was there in the store for the last 4 -5 years. This was planned because the current…
Would you want to swallow electronics? Yes, you heard that right! Electronics, in general, are not meant to be eaten. They have toxic and indigestible materials and if they get stuck inside a human body, they can lead to serious internal damage. However, researchers around the globe are working towards making the electronics that you can swallow. In fact, there is one such…
In commercial and industrial environments, it’s essential to house electrical devices in a secure enclosure. Such devices include controls such as power supplies, terminals, relays, fuses, and many others.
The underlying reason for selecting & utilizing an electrical enclosure is to prevent airborne particles such as debris or dirt as well as…
