Single Phase Transformer Library ➣ Introduction➣ Self Inductance➣ Mutual Inductance➣ Coefficient of Coupling or Magnetic Coupling Coefficient (k)➣ Dot Convention and Equilibrium Equations Sign Convention for KVL Writing Equilibrium Equations fore Coupled Circuit➣ Inductive Coupling in Series Series Aiding Series Opposing➣ Inductive Coupling in Parallel Parallel Aiding Parallel Opposing ➣Energy in a Pair Coupled Coil➣ Introduction to Transformer➣Principle of Working Can D.C. Supply be Used for Transformer ?➣ Construction Types of Windings➣ Construction of Single Phase Transformers Core Type Transformer Shell Type Transformer Berry Type Transformer➣ Comparison of Core and Shell Type Transformers➣ E.M.F. Equation of a Transformer➣ Ratios of a Transformer Voltage Ratio Concept of Ideal Transformer Current Ratio Volt-Ampere Rating➣ Ideal Transformer on No Load➣ Practical Transformer on No Load➣ Transformer on Load (M.M.F. Balancing on Load)➣ Effect of Winding Resistances Equivalent Resistance➣ Effect of leakage Reactances Equivalent Leakage Reactance➣ Equivalent Impedance➣ Phasor Diagrams for Transformer on Load Unity Power Factor load, cosΦ2 = 1 Lagging Power Factor Load, cosΦ2 Leading Power Factor load, cosΦ2 ➣ Equivalent Circuit of a Transformer Approximate Equivalent Circuit➣ Approximate Voltage Drop in a Transformer➣ Voltage Regulation of Transformer Expression for Voltage Regulation Zero Voltage Regulation Constants of a Transformer➣ Losses in a Transformer Core or Iron Losses Copper Losses➣ Efficiency of a Transformer➣ Condition for Maximum Efficiency Load Current at Maximum Efficiency KVA supplied at Maximum Efficiency ➣ Effect of Power Factor on Efficiency➣Effect of Frequency and Supply Voltage on Iron Losses➣ Design of Single Phase Transformer for Instrument Power Supply ➣ All Day Efficiency of a Transformer➣ O.C. and S.C. Tests on Single Phase Transformer Open Circuit Test (O.C. Test) Short Circuit Test (S.C. Test) Calculation of Efficiency from O.C. and S.C. Tests Calculation of Regulation➣ Polarity Test➣ Sumpner's Test (Back to Back Test)➣ Separation of Core Losses Tests➣ Parallel Operation of Transformers➣ Conditions for Satisfactory Parallel Operation Explanation of Conditions➣ Parallel Operation of Two Ideal Transformers➣ Parallel Operation of Transformer With Equal Ratios➣ Parallel Operation of Transformer With Unequal Voltage Ratios➣ Methods of Cooling Transformer➣ Tap Changing Transformer
