Why Induction Motor Has Poor Power Factor at No Load
Induction motors have a low power factor at no load because they draw a large magnetizing current to create the magnetic field, while the actual
Electrical
Deep Bar Double Cage Induction Motor: Construction, Working & Speed-Torque Analysis
💡 Key learnings: Deep Bar Double Cage Induction Motor Definition: A motor with a double-layered rotor designed to enhance starting torque and efficiency. Starting Torque
Difference Between Ohmic and Non-Ohmic Conductors
💡 Key learnings: Ohmic Conductors: Obey Ohm’s Law; current is directly proportional to voltage. Resistance remains nearly constant under normal conditions. Non-Ohmic Conductors: Do not
Why Transformers Are Rated in kVA, Not in kW
Transformers are always rated in kVA (kilovolt-amperes) rather than kW (kilowatts) because their design is based on voltage and current capacity, not the power factor
Why Motor Rated in KW instead of KVA?
A motor is rated in kilowatts (kW) because its primary purpose is to produce useful mechanical output power to drive a load. Kilowatts represent the
Difference Between kVA and kW – Explained With Formulas & Examples
💡 Key Learnings: kW (Active Power): kW measures the real power consumed by electrical equipment to perform actual work. kVA (Apparent Power): kVA represents the
Semiconductor Fuse- Construction, Working, Characterstics, Applications
In high-performance power electronics, milliseconds can be the difference between safe operation and catastrophic failure. A semiconductor fuse is specifically designed to protect sensitive devices
Acidity Test of Transformer Insulating Oil
🔎 Quick Summary – Key Learnings from the Acidity Test of Transformer Oil Purpose: Measures the amount of potassium hydroxide (KOH) needed to neutralize acids
Dissolved Gas Analysis (DGA) Test of Transformer Oil
💡 Key learnings: DGA Definition: Dissolved gas analysis of transformer oil is a method used to examine gases formed due to thermal and electrical stresses
Eddy Current Loss Formula Derivation
The Eddy Current Loss Formula Derivation is an essential concept for understanding how energy is lost as heat in conductors subjected to varying magnetic fields.