Here as students, you need to deal with 2 conditions for the correct derivation of results.
- Case 1: Transformer minus load
- Case 2: Transformer on load
Case 1 detailed: In case you are given a situation when transformer has no load, the scenario would be an open secondary side with primary side having a connection with sinusoidal alternating voltage. There is an alternating voltage present that will cause a primary winding finally resulting in an alternating flux.
In this case, both iron and copper losses are minimal and therefore there is a shift in current vector set.
Case 2 detailed: If you are given a transformer that has load in it, there is a secondary circuit that is completed via a load. In this case, there is a certain net flux that is similar to a no-load situation core. Also this core flux does not change with any amount of load added.
Links of Previous Main Topic:-
- Current Electricity Basic Concepts
- Introduction to Alternating Current
- Introduction Three Phase A C Circuits
- Magnetic Field
- General Aspects
- Elementary Theory of Ideal Transformer
- E M F Equation of a Transformer
Links of Next Electrical Engineering Topics:-
- Resistance and Magnetic Leakage
- Transformer with Resistance and Leakage Reactance
- Equivalent Resistance and Reactance
- Total Voltage Drop in a Transformer
- Equivalent Circuit
- Transformer Tests
- Regulation of a Transformer
- Percentage Resistance and Reactance
- Transformer Losses
- Transformer Efficiency
- All Day Efficiency
- Transformer Noise
- Auto Transformer
- Polarity of Transformers
- General Aspects Polyphase Induction Motors
- Single Phase Motors
- Characteristics of D C Generators
- Measuring Instruments
- Power Supply System
