No-Load Phasor Diagram — Study Resources & PYQs
Phasor diagram of a transformer operating under no-load conditions.
- Estimated study time: 30 minutes
Study resources
- Testbook - Equivalent Circuit of Transformer (Article) — Links ideal vs practical transformer behaviour into the no-load equivalent circuit and phasor diagram.
- Basic Electrical Engineering - Construction of Transformer and Its Types (Video) — Explains transformer construction and types, the foundation needed before drawing the no-load phasor diagram.
- Electrical4U - Transformer Articles Index (Article) — Indian site. Index page linking to no-load/on-load operation, phasor diagrams, equivalent circuit, losses, testing and autotransformers.
- IGNOU eGyanKosh - Unit 4: Transformers (PDF) — Indian government open-courseware notes. Ideal transformer assumptions, no-load and on-load phasor diagrams, equivalent circuit and autotransformer, in exam language.
- NPTEL — Fundamentals of Electrical Engineering, IIT Kharagpur (Article) — Current IIT Kharagpur NPTEL course covering DC/AC circuits, three-phase circuits, resonance, transformers and electrical machines.
- NPTEL — A Basic Course on Electric and Magnetic Circuits (Article) — Current IIT Kharagpur NPTEL course covering electric/magnetic circuits, phasors, three-phase systems and transformer-equivalent circuits.
No-Load Phasor Diagram previous year questions
Taught in these subjects
- FUNDAMENTALS OF ELECTRICAL ENGINEERING — BEET21 · Government College of Engineering and Technology, Jammu
- PRINCIPLES OF ELECTRICAL ENGINEERING — BEET11 · Government College of Engineering and Technology, Jammu
- Fundamentals of Electrical Engineering — EET2201 · Government College of Engineering and Technology, Jammu
- Principles of Electrical Engineering — EET2101 · Government College of Engineering and Technology, Jammu