Results 291 to 300 of about 858,505 (337)

Tutorial on Protection of Three Single-Phase Transformers

2019 72nd Conference for Protective Relay Engineers (CPRE), 2019
At the design stage of a new power substation, one of the decisions to be made is whether to select a single three-phase power transformer or a bank of three single-phase transformers. At Churchill Falls Terminal Station 2, of the Lower Churchill Project, a bank of three single-phase 3×280 MVA 735 kV power transformers was selected because of the ...
Stephan D. Picard, Yujie Yin, Nicholas Keough   +2 more
openaire   +1 more source

Single-Phase Transformer Inrush Current Reduction Using Prefluxing

IEEE Transactions on Power Delivery, 2012
Power transformers can experience large inrush currents upon energization, the severity of which depends on the source strength, the leakage impedance and residual flux of the transformer, and the angle of the applied voltage at energization. A novel inrush current reduction strategy has been implemented which involves setting a single-phase ...
Douglas I. Taylor, Joseph D. Law, Brian K. Johnson, Normann Fischer   +3 more
openaire   +1 more source

Flux-driven Nonlinear Transient Model for Single Phase Transformers

2024 IEEE International Magnetic Conference - Short papers (INTERMAG Short papers)
Intermag 2024 Presentation: VP10: Numerical, Semi-analytical and Analytical Analysis Methods ...
Yingying Wang, Jinhua Yu, Bolin Jin, and Zuhuo Liang   +3 more
openaire   +1 more source

Feedback techniques applied to the single-phase transformer

Transactions of the American Institute of Electrical Engineers, Part II: Applications and Industry, 1957
THE ANALYSIS of electric machines makes use of the vector diagram and the equivalent circuit diagram. Both of these methods give the various quantities sought (current, voltage, torque, etc.) under conditions of steady-state operation. When electric machines are used as elements in a general control system, one should rather apply the same techniques ...
openaire   +1 more source

Single-Phase, Two-Winding Transformers and Autotransformers/Variacs

2011
Inductors discussed in Chap. 6 mostly have one winding only and a relatively large air gap to make it a linear device, where current and voltage are proportional to each other: if one defines in the time domain $$ {{\hbox{v}}_{\rm{L}}}({\hbox{t}}) = {\hbox{L}}\frac{{{\text{d}}{{\text{i}}_{\rm{L}}}{\text{(t)}}}}{\hbox{dt}}, $$ (7.1a) then one ...
Ewald F. Fuchs, Mohammad A. S. Masoum
openaire   +1 more source

Weight-to-price indicators of electromagnetic systems single-phase transformers and reactors with twisted magnetic circuits

2017 International Conference on Modern Electrical and Energy Systems (MEES), 2017
A. Stavinskii, L. Vakhonina, O. Sadovoy, V. Saravas   +3 more
semanticscholar   +1 more source

Reactive Power Loss Versus GIC Characteristic of Single-Phase Transformers

IEEE Transactions on Power Delivery, 2015
A. Rezaei-Zare
semanticscholar   +1 more source

Finite Element Study of Ferroresonance in single-phase Transformers Considering Magnetic Hysteresis

, 2017
M. Beyranvand, B. Rezaeealam
semanticscholar   +1 more source

A Novel Parameter Identification Method for Single-Phase Transformers by Using Real-Time Data

IEEE Transactions on Power Delivery, 2014
H. Dirik, Cenk Gezegin, M. Ozdemir
semanticscholar   +1 more source

On-line monitoring of winding parameters for single-phase transformers

IEEE India International Conference on Power Electronics, 2014
Pothireddy Adarsh Reddy, B. Rajpurohit
semanticscholar   +1 more source