Transient Analysis - Need Help For Transformer Model

Hello Everyone,

I'm working on a project to simulate a transient switching resonance to determine if snubber circuit is required to protect MV transformers from high frequency oscillatory transient overvoltages resulting from system switching analysis (Vacuum Circuit Breaker). I am using PSCAD for this analysis (We only have this software license)

Can anyone advise me on how to model the transformer in PSCAD which will be frequency dependent. I have the transformer information from the customer.

So far I was able to the library components in the PSCAD library to build the source, vacuum circuit breaker and cable (cable as simple RLC netwrok). It is the transformer I am not able to model.

Any advise w