Revisions and repairs transformers

Transporty transformátorů všech výkonů, jak železniční, tak automobilovou dopravou

• Transports of transformers of all loads both by road and by train
• Revisions and repairs of the accessory on the equipment (transformer) – re-sealing of bushings, the gas relay, the conserver with an oil gauge, thermometers, and of the wiring on the device
• Replacement and modernization of the transformer accessory (AKM thermometers, flowmeters Qualitrol, pumps, radiator valves, bushings, conservers, and etc.)
• Revisions and repairs of on-load tap changers, replacement of defunct or damaged parts or of the whole tap changer
• Revisions and repairs of the motor drive of tap changers or its replacement
• Resealing of the dividing plane of the transformer vessel or, if required by the operator, its welding
• Resealing of handholes and armatures on the vessel
• Resealing or replacement of all valves on the piping
• Unwrapping of the magnetic circuit, repairing of the old winding, or ordering the manufacture of a new winding and its replacement
• Inspection of axial play of the winding, upper and lower structures, wedging or tightening of the winding
• Re-insulating of all taps
• Revision and repairing of fan electromotors including the electric wiring
• Reconstruction of the whole transformer cooling system
• Revision of the air dryer tank including the silica-gel filling replacement, installation of double dryers
• Removal of mechanical impurities and degreasing of the transformer surface using a WAP cleaner
• Surface treatment of the transformer – anti-corrosion base painting and top painting with the paint RAL9006 silver aluminium
• Securing of hermetic sealing of the transformer
• Flooding the transformer vessel with the oil filling in vacuum
• Electrical measurement of the transformer
• Electrical measurement of auxiliary circuits and insulation states of the accessory
• Functional inspection of all transformer components, their communication with the control room
• Securing of measurement by contract – transformer diagnosis (electrical measurement + analysis of the transformer oil filling)