Transformer Oil: Testing, Types & Properties
💡 Key learnings: Transformer Oil Defined: Transformer oil (insulating oil) is essential for cooling, insulation, and protecting transformers from oxidation. Types of Transformer Oil: Two
Electrical
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
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