Indepth Electrical engineering

There are various designs are available in the market for working of Jet turbine but they all works on the same principle.   The most typical type nowadays may be the centrifugal flow turbine , instead of the more time axial flow turbine . A centrifugal turbine mostly differs within the stage of compression - air entering the turbine is tossed outwards because it passes within the spinning impeller. The environment hits against within the can and thus is compressed greatly, before passing in to the combustion chamber. This intense compression boosts the temperature from the air, along with the pressure. The fuel, that is usually oil , is introduced in to the combustion chamber like a very fine spray, and thus mixes easily using the now very compressed air. This fuel/air mixture will be captivated with a small glow plug, much identical to the one available on a couple or 4 cycle model plane engine. Because the fuel/air mixture ignites and explodes in...

Every electrical engineer knows ohm's law:- Now what is Ohm's law? Ohm law is relationship between Voltage, Current and resistance. This law states that Potential difference across an ideal conductor is proportional to current through it. i.e. Voltage = IR where R is known as Proportionality constant and also know as Resistance to current flow across conductor. This is linear law. But very useful for solving simple circuits. Basic Electrical rule that follows Ohm law is shown in pic by very interesting means:- You will love to see how electrical basics can been represented in such an interesting manner. By Ohms law Voltage= Current X Resistance Voltage in Volts Current in Amp And Resistance in Ohm From above pic it is very clear that more the potential difference more will be current . Resistance always restricts flow of current. As Per Ohm's Law current flow through a conductor is directly proportional to voltage or Potential differenc...

In every machine it becomes always very important to measure temperature of machines as we know what is ambient temperature on which machine runs and running temperature of machine, machine breakdowns can be reduced. If we know that machine temperature is rising then we can easily understand from that there is some abnormality with the machine. So it becomes prime importance to know and monitor the temperature of machines irrespective of their design. In this article we will study about various methods of temperature measurement. Method of measurement of Temperature rise in Machines:- In machines there is very difficult to measure temperature as there is complex heat flow through materials having different conductivities and heat transfer co-efficient. There are following methods for temperature measurement in machines:- 1.     Thermometer method 2.     Resistance method 3.     Temperature detector 1.  ...

Effect of Environmental Factors on Rating of Electrical Machines Every electrical machine is designed to deliver its rated performance under standard environmental conditions defined by manufacturers and international standards (such as IEC, NEMA, IS). However, in real-world applications, factors like temperature, altitude, and humidity may vary significantly. These deviations directly impact the cooling, efficiency, insulation life, and overall rating of the machine. Below, we discuss how different environmental parameters affect the performance and rating of induction motors and other electrical machines. 1. Effect of Temperature The ability of a machine to handle load primarily depends on how efficiently it can dissipate heat generated during operation. Low Ambient Temperature : Machines perform better in colder climates because the temperature difference between the winding and ambient air increases, improving cooling efficiency. 👉 Exam...

There are two types of Tap changers in Transformers depending upon the rating of transformer. Off-load Tap changer On-Load Tap changer If a tap-changer is designed to operate with the transformer out of circuit the it is called off-load tap changer. In that Transformer line should be disconnected completely before changing the tap. If a Tap changer is designed to operate with the transformer in circuit then it is called as On-Load tap changer i.e. tap can be changed even when transformer will remains in line. Read about about why and where tap changer required in Transformer:- Read here Let’s discuss here about off –load or No load Tap changer:- No Load Tap Changer:- This type of Tap changer is used for seasonal voltage variations as in Summers load on HT increases leads to drop in HT voltage so O/P can be increased by using Transformer Tap changer and in Winters when load get reduced HT voltage restores to normal levels then tap changer position can be do...

Universal Motors – Working, Characteristics, and Applications What is a Universal Motor? A universal motor is a type of series-wound commutated motor that can operate on both AC and DC supply . It is essentially a DC series motor modified for AC operation . These motors are compact, inexpensive, and capable of running at very high speeds, making them ideal for household appliances and portable power tools. Applications of Universal Motors Universal motors are widely used in small and medium appliances where variable speed and high starting torque are essential: Power tools (drills, grinders, saws) Food processors & mixers Vacuum cleaners Sewing machines Washing machines (agitation + spin cycles) Hair dryers & small domestic appliances Construction & Operating Principle Series-wound design : Armature and field winding connected in series through a commutator. On AC supply : Current reverses in both arm...