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POWER TRANSFORMERS
Nordeston supplies power transformers across all ratings above 16 MVA, ensuring full compliance with diverse technical specifications and voltage requirements worldwide.
AUTO TRANSFORMERS
These high-voltage transformers are specifically designed for interconnecting power grids operating at different voltage levels and are available with capacity ratings up to 1250 MVA and 765 kV, featuring both constant flux voltage variation and variable flux voltage variation design options to meet diverse system requirements.
STEP UP/DOWN TRANSFORMERS
Generator transformers are engineered to step up generator output voltage to transmission-level voltage, with designs tailored to generator characteristics, including over-excitation and loading curves, and are available in ratings up to 1250 MVA and 765 kV.
RAILWAY TRANSFORMERS
These transformers are designed to step down transmission line voltage to railway supply voltage, with ratings up to 100 MVA and 420 kV, and are specifically engineered to withstand frequently repeated overcurrent conditions.
While power transformers share a fundamentally similar structural concept, variations in customer specifications and project requirements necessitate a customized design approach for each unit. Accordingly, Nordeston's electrical and mechanical engineering teams treat every transformer as a distinct project.
OIL DISTRIBUTION TRANSFORMERS
Distribution transformers are used in urban distribution systems, buildings and industrial plants. Nordeston manufactures distribution transformers for all kinds of needs with its experience, as well as its modern design and production plants.
DISTRIBUTION TRANSFORMERS
These transformers are designed for use in both distribution and transmission networks, supplying residential, industrial, commercial, and public facilities, and are widely utilized in renewable energy applications; available in hermetically sealed, conservator (expansion tank), or gas-cushion designs, with off-load or on-load tap changer options, and manufactured up to 16 MVA and 72.5 kV.
RECTIFIER TRANSFORMERS
These transformers are designed to deliver stable and continuous voltage for small- and large-scale industrial production facilities, including hoists and rolling mills, while isolating the system from the grid and minimizing reactive power generation through 6-, 12-, or 24-pulse configurations, with ratings up to 20 MVA and 16 kV.
EARTHING TRANSFORMERS
Earthing transformers are designed to create a neutral point for grounding in systems with delta-connected windings and can also supply auxiliary service loads, available up to 72.5 kV in ZN, ZNyn, and YN(d) connection groups, with designs customized for specific current ratings and duration requirements.
Design of all kinds of oil-immersed distribution transformers below 16MVA and 72,5kV are made by Nordeston design team according to the principles of maximum efficiency, compactness and endurance in compliance with customer demands.
DRY TYPE TRANSFORMERS
Nordeston manufactures cast resin dry-type transformers tailored to customer specifications, featuring insulation temperature classes F and H; low-voltage windings pre-impregnated with heat-activated epoxy resin and vacuum-cast in epoxy; high-voltage windings vacuum-cast with quartz-filled or glass-fiber-reinforced epoxy resin; and, supported by dedicated manufacturing facilities and engineering expertise, offers production capability up to 40 MVA and 72.5 kV class.
DISTRIBUTION TRANSFORMERS
These transformers are designed for use in distribution systems and can operate as step-down units in industrial facilities and residential developments or as step-up transformers in power plants, with load or no-load tap changer options, IP55-protected cabinet configurations, and production capacity up to 40 MVA and 72.5 kV.
RECTIFIER TRANSFORMERS
These transformers are designed to supply rectifier units across various industrial applications, including metro and tram traction systems, marine propulsion, power plant auxiliary systems, and industrial motor-converter operations, available in 6-, 12-, and 24-pulse configurations, suitable for installation in IP55-rated enclosures, and manufactured up to 20 MVA and 72.5 kV.
EARTHING TRANSFORMERS
These transformers create a neutral point in insulated systems to enable fault current measurement and system protection, can be installed in IP55-rated enclosures, and is manufactured for voltage levels up to 72.5 kV regardless of power rating.
With advanced engineering expertise and state-of-the-art manufacturing facilities, we deliver high-performance cast resin dry-type transformers up to 40 MVA and 72.5 kV, engineered for reliability, efficiency, and long-term operational excellence.