Home » English riddles » Transformer » Transformer Question No. 19 – Power transformer vector group » Reply To: Transformer Question No. 19 – Power transformer vector group Reply To: Transformer Question No. 19 – Power transformer vector group 2021-08-03 at 11:08 am #1616 R K Mohapatra For a 3 phase core type power transformer the Zero sequence impedence is normally 65-75 % of the positive sequence impedence at a workinf flux density of 1.6 Tesla .
