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Türkçe Auxiliary Equipment
Hermetic Relay
It is a protective equipment generally used in hermetic transformers. It is used in 630 kVA and above powers in standard demands, but it can also be used in all indoor type transformers in line with customer demand. It is mounted at the highest point of the transformer. It measures and controls 4 parameters inside the tank. These; It is the upper oil temperature of the transformer, the pressure formed in the transformer, the oil level, the amount of gas that may occur with malfunctions and discharges.
• There are 2 contacts according to the values that can be adjusted for the temperature. It can be used as Opening and Warning.
• There is 1 contact according to the values that can be adjusted for pressure. It is used for opening.
• Oil level and gas formation are functionally controlled in the same way. Therefore, there is 1 contact for both, it is used for opening.
• There are 2 contacts according to the values that can be adjusted for the temperature. It can be used as Opening and Warning.
• There is 1 contact according to the values that can be adjusted for pressure. It is used for opening.
• Oil level and gas formation are functionally controlled in the same way. Therefore, there is 1 contact for both, it is used for opening.
Buchholz Relay
It is a protective equipment that is connected between the tank and the expansion tank in transformers with expansion tank, which does not send to the expansion tank, which keeps the gases formed by the discharge, short circuit or any reason inside the transformer, and gives 2 contacts (used as warning and tripping) in certain gas volumes.
Thermometer
It is a protective equipment usually mounted on the cover for the measurement and control of the upper oil temperature of the transformer. There is a resettable maxigraph that continuously displays the maximum temperature on which the thermometers rise. It can be used with and without contact. Contact thermometers have 1 or 2 adjustable contacts (as warning and opening).
Oil Level Indicator
It is a protective equipment mounted on the side cover of the expansion tank in transformers with expansion tank, and on the cover in hermetic transformers, for the measurement and control of the insulation oil level in the transformer. It can be used with and without contact. In contact indicators, there are 1 or 2 contacts (as warning and opening).
Pressure Relief Valve
It is generally used in hermetic transformers. It detects sudden or long-term pressure rises that may occur due to the expansion of the oil in the transformer with temperature or a malfunction, and relieves the pressure. It can be used with and without contact. Contact Pressure relief valves have 1 or 2 adjustable contacts (as warning and opening).
Silicagel Air Dryer
It is used in transformers with expansion tanks. With the temperature changes in the oil of the transformer, it blows out and takes back the air as much as the volume that expands and contracts through this equipment. The silica gel desiccant contained in it keeps most of the humidity of the passing air above, thus reducing the possibility of moisture absorption of the insulation oil. When the silica gel turns white by absorbing moisture, it must be replaced. It is mounted at the highest point of the expansion tank that does not come into contact with oil.
Wheel
By mounting it on the lower transport chassis of the transformer, ease of transporting the heavy material is provided. Transformer wheels can only move in 4 directions with a difference of 90 degrees. 4 wheels are attached to a transformer.