Tesar srl is a worldwide leader in the supply of cast resin transformers mainly used for energization of rails, metros, highspeed trains, tram- ways, braking energy recovery systems and auxiliary services for sta- tions and signalling.
The range of production includes transformers till 20MVA 52kV for every kind of application since 1979 and operates under ISO 9001 qual- ity management system certification, it is an environmentally friendly company in line with ISO 14001 standards and it performs all activities in compliance with ISO 45001 safety standards.
Tesar offers a wide range of customized solutions for feeding rectifiers of all main producers:
• Transformers with phase shifting for the supply of 6, 12 or 24 pulses rectifiers
• Electrostatic screen between primary and secondary
• Configuration for double secondary windings in interleaved (coupling factor > 0.9 or double storey (coupling factor < 0,2 )
• Network frequency 50Hz , 60Hz , 16 2/3Hz
• Insulation classes F/F or H/H
• Environmental, climatic and fire classes up to E4, C3, F1 • Overloads up to class IXa as per EN 50329-1
• Metallic enclosures for indoor and outdoor installation