Dear All,
Kindly provide me any source or data sheet where I can find the data of 3phase power transformers up to 10-kVA rating operating at 50-Hz.
I require the parameters to enter in Matlab/Simulink block of Three Phase transformer. The value I am looking for are;
R1 & R2 (PU) = ?
L1 & L2 (PU) = ?
Magnetization resistance and Inductance (PU) = ?
Dear Amit,
You can find the expected minimum values for impedances in IEC Standard 60076-5. IEEE C57.12.10 and C.57.12.51 standards give preferred impedances for liquid-immersed and dry-type transformers respectively. The values corresponds to the total impedance (Z1 and Z2).
You can access a comparison between IEC and IEEE standards by clicking on the link below.
IEC 60909-2 presents some actual data for transformers. X/R ratings for low power transformers are relatively low. Table 2 of the mentioned standard presents a X/R of 5 for a 630 kVA transformer. From this information you can calculate the winding resistance and reactance from the impedance value.
Magnetization resistance and inductance refers to the magnetization current. Values should be lower than standard Matlab settings. You could try values around 100 pu, but it is just a suggestion.
http://www.google.com.br/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CB0QFjAAahUKEwiLlsjH8YjIAhWDgpAKHUqaBbQ&url=http%3A%2F%2Fwww.vatransformer.com%2FResources%2Ffiles%2FWhite%2520Papers%2FComparative%2520Study%2520of%2520IEC%252076%2520and%2520C57(rev%2701).doc&usg=AFQjCNFOi-Rg8tgL70Wfu2HGox0IRKeqGA&cad=rja
An immense thank to you sir for your valuable inputs.
Can you please give the soft copy of the IEEE std. I don't have access for the same for time being.
The link in the previous answer already gives the relevant data from the standards and is open access.
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