Tricky but Easy Electrical Engineering!
The market of solar products is growing at a steady pace, and the growth is not only for rooftop units but also for portable Solar Generators. Solar generators are a great way to have some additional power to charge your electronics at the campsite. They are clean and require very little maintenance. But how do … Read more
Ideal transformer is an imaginary transformer devised for sake of analysis of a practical/real transformer. The main difference between an ideal and practical transformer is that former is having an efficiency of 100% while the latter have efficiency close to 100% (around 99%). Let us now discuss some more differences between ideal and practical transformer. … Read more
Definition: Ideal Transformer is a hypothetical transformer having infinite permeability core and zero core loss and ohmic loss. An ideal Transformer does not exist in reality. This is just a hypothetical transformer for sake understanding the actual transformer. Properties of Ideal Transformer: Following assumption are made to define an ideal transformer: Winding Resistance is negligible. … Read more
Before we jump into the insulation class of Transformer Oil, it is imperative to discuss briefly about the insulation class. Insulation Class basically defines the maximum temperature at which an insulating material will perform its specified duty for the specified life on continuous basis. There are six insulation classes. These are tabulated below: Life of … Read more
Flash Point of Transformer Oil is defined as the temperature at which light hydrocarbon present in the transformer oil starts evaporating causing a flash on introduction of source under specified condition. It is an important parameter which must be maintained above 140 degree Celsius. Light hydrocarbons are already present in the transformer oil and gets … Read more
Induction motors are widely used in industries to meet various requirement. This can be realized by that fact that, around 90% motors used in industries are Induction motors. The motors plays an important role in the plant process and failure or outage of motor may lead to loss in production or may even hamper the … Read more
Locked Rotor current and Starting current of induction motor seems to be the same thing at first glance but it is not so. These are two different terms having different meaning and significance. In this post we will discuss the difference between the locked current and starting current of induction motor. Locked rotor current is … Read more
Start Delta Starter is a scheme for motor starting to reduce the inrush current during starting of the motor. This method of starting is quite popular for Delta connected Squirrel Cage induction motor. In this method, the motor is first started as a star connected motor and as soon as the motor reaches near to … Read more
Power Angle Curve of Synchronous Machine is the graphical representation of electrical output with respect to the power angle. As we know, power angle is also known as load angle, therefore it can be said that this curve is graphical representation of electrical output of generator with respect to load angle. In this article, we … Read more
Load Angle in synchronous machine is defined as the angle between the filed mmf or flux and the resultant air gap mmf or flux. Load angle and power angle are same thing which are used synonymously. There are basically three different types of flux in a rotating electrical machine: Stator flux, Rotor flux and Resultant … Read more