خطاهاي محتمل در ترانسفورماتور
External
1- External Short circuit
2- Overloads
3- Overvoltage
Internal
1- Internal Short circuit
1.1- Between turns
1.2- Between windings
2- Grount faults
3- Overtemperature
4- Overpressure
5- Miss of oil
6- Saturation
حفاظت هاي مكانيكي
-2رله فشار شكن
-3ترمومتر ها
-4نشانگر سطح روغن
Sudden pressure relay -5
-6رله هاي حفاظتي كليد تنظيم ولتاژ
2- Overcurrent relay
2.1- Phase
2.2- Neutral
3- Differential relay
4- Overload relay
5- Restricted earth fault relay
6- Tank relay
7- Fuses