Hermetic Protection Relay:
This relay is suitable for up to 630 kVA hermetically sealed type transformers. This relay consist of oil level indicator, temperature indicator, buchholz relay and pressure relay.


Pressure Valve:
It is used for hermetically sealed type transformers for protect transformer tank tearing. This valve compensates inner and outside pressure. It is mounted on cover.



Bucholz Relay:
Buchholz relay is a protection device for monitoring gas and oil movements in oil immersed transformers. When a fault occur, oil turn into gas with burn. According to amount of gas collecting in the relay, alarm and tripping signals contact is activates to breaker.


Oil Thermometer:
Thermometer is designed for indication of oil temperature. When over temperatures thermometer has got two contact that transmit tripping signals to the breaker.



Oil Level Indicators:
Oil level indicator is monitoring oil level in transformer. At power.transformer these can be with contact.




Moisture Holders:
Moisture holders are used with in expansion tank to take out the moisture of the air that enters.