scholarly journals Theoretical Determination of Equivalent Circuit Parameters for Double Electrode SAW Interdigital Transducers

1991 ◽  
Vol 111 (9) ◽  
pp. 390-395
Author(s):  
Kiyoshi Inagawa ◽  
Masanori Koshiba
Keyword(s):  
Equivalent Circuit ◽  
Theoretical Determination ◽  
Equivalent Circuit Parameters ◽  
Double Electrode

Augmented Short-Circuit Test for the Measurement of Transformer Equivalent-Circuit Parameters with Large Series Branch Impedances

2010 ◽  
Vol 47 (1) ◽  
pp. 86-93
Author(s):  
Saurabh Kumar Mukerji ◽  
Moleykutty George
Keyword(s):  
Equivalent Circuit ◽  
High Voltage ◽  
Single Phase ◽  
Short Circuit ◽  
Large Series ◽  
Test Results ◽  
Voltage Supply ◽  
Short Circuit Test ◽  
Equivalent Circuit Parameters

An augmented short-circuit test is described for the determination of equivalent-circuit parameters of single-phase transformers with large series-branch impedances. This test may be conducted at rated currents with the transformer connected to a reduced voltage supply. Thus harmonics in current and voltage waves are negligible. This test is therefore free from harmonics-associated errors. Based on test results, phasor equations are found which give formulae for the equivalent-circuit parameters with series-branch impedance split into low- and high-voltage components.

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