Hi all,
Using transformer nominal power Sn, primary and secondary winding nominal voltages U1n and U2n, no-load losses ΔPt , load losses ΔPk , no-load current as a percentage from nominal current It % , short-circuit voltage uk % or the corresponding short-circuit reactance value Zk % , can we calculate short-circuit reactive power ΔQk ?
Any help would be appreciated. Thanks.
Please look to these links:
http://www.electrical-installation.org/enwiki/Compensation_of_reactive_energy_absorbed_by_the_transformer
https://electricalnotes.wordpress.com/2011/03/21/importance-of-reactive-power-for-system/
also you can check this pdf
http://apps.geindustrial.com/publibrary/checkout/GET-3550F?TNR=White%20Papers|GET-3550F|generic
Neglect the effect of the core impedance on the short circuit current, then determine the remaining equivalent circuit parameters using the power loss, and %Z data. The short circuit reactive power can be then determined as I^2 Xtot
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