وقايات المحولات الكهربية الميكانيكية و الكهربية بالتفصيل

The electrical transformer is the most important and expensive piece of equipment in a substation, therefore it is protected by more than one protection device, which is divided into mechanical protection devices such as Buchholz, pressure relief, and temperature protection, and electrical protection devices such as differential protection, overcurrent protection, and earth leakage protection.