Hi,
I'm currently studying the fundemetals of Transformer application and if at all possible could do with some help on any of the following;
i). Comparison of:
mineral oil filled transformers Askerel filled transformers & dry type transformers.
ii). Why star-star power transformers are often supplied with a third delta connected tertiary winding.
iii). What precautions are necessary before connecting power transformers in parellel.
iv). Explaination of the following types of transformer protection:
Differential protection Restricted earth fault overcurrent gas and oil relay
v). Explaination of the Buchholz relay's construction, operating principle & purpose.
Any kind of website or information supplied will be of great help, please mail to: snipped-for-privacy@interserve-eng.com.