| We will
supervise your manufacturing or repair process. Or communicate with us in order
to |
| witness
all the tests on your transformers. We witness electrical and mechanical tests
based on |
| national
and international Standard Specifications like ANSI/IEEE or IEC. |
| |
| The ideal transformer and the real
transformer |
|
| The equivalent diagram |
|
| The ratio |
|
| Voltage drop |
|
| Series Impedance |
|
| No-Load current and magnetizing admittance |
|
| Different shapes of the equivalent diagram |
|
| The elementary geometry of transformer |
|
| The three vectors |
|
| Dimensional laws |
|
| Core type and shell type structures |
|
| One, two, three, five limb(s) configuration |
|
| Magnetic leakage field and series reactance |
|
| Algebraic method of Reactance calculation |
|
| Eddy current in core laminations |
|
| Silicon alloy in core material |
|
| Hysteresis losses |
|
| Effect of manufacturing methods on core loss |
|
| What is grain oriented material? |
|
| Magnetization phenomena |
|
| Core structure |
|
| Overlap and step-lap structure |
|
| Yoke reinforcement |
|
| Mechanical stresses |
|
| Electrical and mechanical aspects on assembly of
windings |
|
| Pressing the windings |
|
| Complex windings |
|
| Axial and radial forces and their effects on windings |
|
| Current distribution in strip and foil windings |
|
| Different winding types |
|
| Winding assembly process |
|
| Economic evaluation of losses |
|
| No-Load Losses |
|
| What is building factor? |
|
| Special types of core material |
|
| Load-Loss |
|
| Ohmic loss |
|
| Eddy losses in windings |
|
| Usage of transposed conductors |
|
| Skin effect in conductors |
|
| Stray losses |
|
| Thickness of material and its relation with stray
losses |
|
| Shielding the tank against stray losses |
|
| Current behavior of core frame |
|
| Heat transfer in windings |
|
| ON, OF,ONAN,ONAF,ODAF |
|
| Dry out |
|
| Vapor phase |
|
| Oil treatment |
|
