Transformer Design Principles, Third Edition

The third edition presents new developments, including losses in tank walls and a simpler method to calculate temperatures and flows in directed flow windings, and a chapter on optimization to achieve a low cost transformer design. The book includes a section on correcting the linear impedance boundary method for non-linear materials.

In the newest edition, the reader will learn the basics of transformer design, starting from fundamental principles and ending with advanced model simulations. The electrical, mechanical, and thermal considerations that go into the design of a transformer are discussed with useful design formulas, which are used to ensure that the transformer will operate without overheating and survive various stressful events, such as a lightning strike or a short circuit event. This new edition includes a section on how to correct the linear impedance boundary method for non-linear materials and a simpler method to calculate temperatures and flows in windings with directed flow cooling, using graph theory. It also includes a chapter on optimization with practical suggestions on achieving the lowest cost design with constraints.

Autorentext

Robert M. Del Vecchio, Bertrand Poulin, Pierre T. Feghali, Dilipkumar Shah, Rajendra Ahuja

Inhalt

INTRODUCTION. MAGNETISM AND RELATED CORE ISSUES. CIRCUIT MODEL OF A TWO WINDING TRANSFORMER WITH CORE. REACTANCE AND LEAKAGE REACTANCE CALCULATIONS. PHASORS, THREE PHASE CONNECTIONS, AND SYMMETRICAL COMPONENTS. FAULT CURRENT ANALYSIS. PHASE SHIFTING AND ZIG-ZAG TRANSFORMERS. MULTI-TERMINAL THREE PHASE TRANSFORMER MODEL. RABINS' METHOD FOR CALCULATING LEAKAGE FIELDS, INDUCTANCES, AND FORCES IN IRON CORE TRANSFORMERS, INCLUDING AIR CORE METHODS. MECHANICAL DESIGN. ELECTRIC FIELD CALCULATIONS. CAPACITANCE CALCULATIONS. VOLTAGE BREAKDOWN THEORY AND PRACTICE. HIGH VOLTAGE IMPULSE ANALYSIS AND TESTING. NO-LOAD AND LOAD LOSSES. STRAY LOSSES FROM 3D FINITE ELEMENT ANALYSIS. THERMAL DESIGN. CONSTRAINED NONLINEAR OPTIIZATION WITH APPLICATION TO TRANSFORMER DESIGN. REFERENCES. INDEX.