Transformer accessories are protective and indicative equipment that are used depending on the transformer power& type and customer request.

HERMETIC PROTECTION RELAY:

Hermetic Protection Relay is preferred for hermetic design and it play a primordial role as protective device against temperature rise, pressure rise, low oil level and gas accumulation in hermetic transformers. A relay has two contacts, warning and tripping, against each failure condition. It is applied in transformers with a power equal or above 630 KVA.

BUCHHOLZ RELAY:

Buchholz relays is connected with pipes between the transformer tank and the oil expansion tank. It provides protection by giving contact in cases of breakdown caused by electrical failures occurring in the transformer or caused by insulating materials. It has two contacts, warning and tripping, for cases of failure.

OIL TEMPERATURE THERMOMETER WITH CONTACT:

There are two adjustable contact thermometer that are settable according to the permissible oil temperature rise in the transformer. It is possible to monitor oil temperature in the range of 0 to 120°C on the thermometer. Contact thermometers issue warning and opening signals in case the heat in transformer exceeds the stipulated values.

PRESSURE RELIEF VALVE:

A pressure relief valve protects the transformer tank by ensuring the evacuation of sudden pressure rise building up in hermetic transformers in cases of failure. The valve is set to a certain value of pressure and can be selected with or without a contact.

* Accessories: Oil Level Indicators, Dehydrating Breather, Dehumidifier, Magnetic Oil Level Gauge, Sign Plate, Dial Thermometer, Moisture Holder, Wheel (All of the accessories depend on the specifications and customer demand).