Abstract:
The reliability and security of electrical supply is an important factor in modern power systems. However proper design of electrical distribution transformers according to specified specification play an important role to achieve these objectives. Nevertheless, designing electrical distribution transformers using optimum design equations based on specified specifications (i.e. proper percentage impedance (%Z), load and NO- load losses limitations) increase transformers life time and distribution network reliability. Therefore in this project (1000KVA – 11/0.433 KV) distribution transformer designed using proper design equations and Sudanese electricity distribution company (SEDC) specifications with aid of Microsoft Excel Sheet software and compared with witch product based on same specifications limits. The magnetic core designed using silicon steel slides taking E-type shape, also cylindrical winding design was chosen. The mechanical parts designed according to proper mechanical equations