Why transformer rated in KVA, Not in KW?
The transformer is rated in KVA, not in KW. It supplies power to electrical loads like motors and heaters, which have their own power factor. … Read more
Machines
An electrical machine converts mechanical energy into electrical energy or vice versa. The transformer is also an electrical machine which transform the voltage without changing the frequency. We will discuss about the;
- DC Motor
- DC generator
- Induction Motor
- Transformer
- Electrical drives
- Alternator or synchronous generator
Acidity Test of Transformer Oil
The transformer oil is used for insulation and cooling purposes in a transformer. The acidity Test of Transformer oil is a crucial test for analyzing the oxidation … Read more
Dissolved Gas Analysis (DGA) Test of Transformer Oil
The dissolved gas analysis (DGA) test of transformer oil is a tool to detect dissolved gases in the oil for diagnostics to detect incipient faults. … Read more
Transformer Basics & Its Working Principle
What is a Transformer? The transformer is a static device that transfers electrical energy from one circuit to another circuit without altering the frequency. The … Read more
Efficiency of Transformer
The transformer is a vital link between the load and the supply. The efficiency of the transformer is very important in view of energy saving. … Read more
EMF Equation of Transformer | Turns Ratio of Transformer
EMF equation of transformer is very important for understanding the working of the transformer. When a sinusoidal voltage is applied to the primary of the … Read more
Rotating Magnetic Field in Three Phase Induction Motor
The stator of an induction motor consists of a number of overlapping windings offset by an electrical angle of 120°. When the primary winding or stator is … Read more
Application of Squirrel Cage And Slip Ring Induction Motor
There are two types of 3-phase induction motors. These are the squirrel cage induction motor & slip ring induction motor. We shall discuss the application … Read more
Why Induction Motor Takes High Starting Current?
Working Principle of Induction Motor: The induction motor draws a high starting current compared to the running condition. The starting current of the induction motor … Read more
How to Calculate Burden of CT
The burden of the current transformer is expressed in VA. The total VA burden should be considered when CT is used for measuring or protection … Read more