Voltage Distribution Among the Coils and Turns of a Form Wound AC Rotating Machine Exposed to Impulse Voltage

1986 ◽  
Vol PER-6 (6) ◽  
pp. 40-41 ◽  
Author(s):  
R. G. Rhudy ◽  
E. L. Owen ◽  
D. K. Sharma
Keyword(s):  
Voltage Distribution ◽  
Rotating Machine ◽  
Impulse Voltage

scholarly journals Impulse voltage distribution and frequency response of intershield windings

2016 ◽  
Vol 32 (5) ◽  
pp. 32-40 ◽  
Author(s):  
Mehdi Bagheri ◽  
B. T. Phung ◽  
Mohammad Salay Naderi
Keyword(s):  
Frequency Response ◽  
Voltage Distribution ◽  
Impulse Voltage

Power Transformer Constants Affecting its Impulse Voltage Distribution

1977 ◽  
Vol 14 (1) ◽  
pp. 53-63
Author(s):  
A. M. El-Arabaty ◽  
Ezzat A. A. Mansour ◽  
Osama A. M. Said
Keyword(s):  
Power Transformer ◽  
Power Transformers ◽  
Stress Distributions ◽  
Voltage Distribution ◽  
Impulse Voltage ◽  
The Difference ◽  
Theoretical Results

This work deals with the modification of the known calculating formulae for power transformer constants used for impulse voltage distribution, presents the effect of transformer constants and their modifications on impulse voltage and stress distributions in power transformers, and compares experimental and theoretical results considering measures taken to minimize the difference between them.

scholarly journals Evaluation of Methodology for Lightning Impulse Voltage Distribution over High-Voltage Windings of Inductive Voltage Transformers

Energies ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 5144
Author(s):  
Bojan Trkulja ◽  
Ana Drandić ◽  
Viktor Milardić ◽  
Igor Žiger
Keyword(s):  
High Voltage ◽  
Equivalent Circuit Model ◽  
Boundary Element Methods ◽  
Design Stage ◽  
Iron Core ◽  
Voltage Distribution ◽  
Specific Design ◽  
Impulse Voltage ◽  
Lightning Impulse ◽  
Capacitance Matrix

Knowledge of lightning impulse (LI) voltage distribution over transformer windings during the design stage of the transformer is very important. Specific design differences in inductive voltage transformers make the transient analysis approach different to the approach to the power transformers. In this paper, a methodology for acquiring lightning impulse voltage distribution over high-voltage (HV) winding of inductive voltage transformers is presented and evaluated. Resistance, inductance, and capacitance matrices are calculated using the integral and boundary element methods (BEM) approach. Additionally, in order to improve the capacitance matrix solver, adaptive cross approximation (ACA) is applied. These parameters are then used to solve the equivalent circuit model in time domain. In order to evaluate the methodology, an experimental and numerical investigation of the layer discretisation, iron core influence, and accuracy of the proposed methodology is performed. The comparison of numerical results with measurements confirms the validity of the methodology.

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