Over Fluxing in Transformer: Causes, Effects, and Permissible Flux Limits
Overfluxing in transformer is a critical condition that occurs when the voltage-to-frequency ratio (V/f) exceeds its designed limit, leading to an abnormal rise in core
Electrical
Why DC Series Motor should not be Started at No Load
The DC series motor attains dangerously high speed when we run it on no load. The main reason for overspeeding is that at no load,
Why is Star Delta Starter Preferred with an Induction Motor?
Why star delta starter is preferred with induction motor can be understood from the following explanation. In star delta starting, the phase voltage is 58%
DC Shunt Motor : Construction, Speed Control & Characteristics
A DC shunt motor is known for its nearly constant speed operation, making it ideal for applications like lathes, fans, and conveyors. In this post,
Why Are Rotor Bars Skewed in An Induction Motor?
What is Skewing of Rotor Slots? As shown in the above picture, the rotor bars of an induction motor are not parallel with the shaft,
Star Delta Starter | Working Principle, Power and Control Circuit Diagram
A star delta starter is a widely used method for reducing the inrush current when starting a three-phase induction motor. In this article, we’ll explore
Direct Online Starter (DOL Motor Starter): Circuit Diagram and Working Principle
Direct online starter is a method of starting an induction motor. The stator of the motor receives the full supply voltage in the DOL starter.
Difference Between Earthing, Grounding, and Neutral in Electrical Systems
Earthing, grounding, and neutral are often confused terms in electrical systems—but they serve different safety and functional purposes. While “grounding” and “earthing” are sometimes used
Why DC Series Motor Is Ideal for Driving Heavy Loads
A DC series motor is widely used for driving heavy loads due to its unique ability to produce very high starting torque. This article explains
Transformer Oil BDV Test (Breakdown Voltage Test) – Procedure, Minimum Values & Standards
💡 Key learnings: BDV Full Form: BDV stands for Breakdown Voltage, the maximum voltage transformer oil can withstand without breakdown. Importance of BDV Testing: Regular