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Rectifier transformer OTR
currentcast resinimmersed

rectifier transformer
rectifier transformer
rectifier transformer
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Characteristics

Type
current
Configuration
cast resin, immersed
Applications
industrial
Other characteristics
rectifier, high-current, single-phase, three-phase, high-voltage
Current

Max.: 100,000 A

Min.: 0 A

Primary voltage

Max.: 170,000 V

Min.: 0 V

Secondary voltage

Max.: 750,000 V

Min.: 0 V

Description

Suitable for simple industrial applications to electrolysis processes with high secondary currents (up to 100 kA) and high harmonic content Rectifier transformers are manufactured according to the experience and the high technical know-how of SEA in the industrial sector. Multiple secondary LV windings, variable flux regulation by booster or by autotransformer. These transformers are used to feed rectifiers, converting AC sources to DC and supplying an adjustable secondary voltage by an on load tap changer (OLTC). Some critical features must be considered during the project realization: - Harmonics: Harmonic current means higher losses and hot spot temperatures in the transformer should be considered during the design process. - Secondary output: High current LV terminals should be size designed in a suitable way in order to avoid any dangerous effect of electromagnetical fields. - Losses: Finite element analysis permits to reduce copper losses and eddy current losses in the rectifier transformer and prevent overheating for flux leakages. - Mechanical stress: strong construction to withstand to high vibration and mechanical stress should be considered.

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.