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IQTrafotec Technology SEA has been designing and manufacturing liquid immersed, cast resin and air insulated transformers, positioning itself among the industry leaders since 1959 IQTRAFOTEC® Innovative construction solutions, modern and technologically advanced processes, detailed checks throughout the entire design and construction chain asssure the total quality of the product. SEA has established procedures to assure the TOTAL QUALITY of its products availing itself on its own know-how and adapting it to innovative manufacturing processes and strict control procedures. This type of...

There are some electrical aspects that affect the transfer of energy in the HV lines and in cable systems; depending on the features involved and on the ultimate goal of their variation, it is suggested the use of a certain reactor rather than another one Here are some considerations with regard to the previously mentioned aspects and to the most commonly used types of reactors. THE REACTIVE POWER The reactive power is generated in the long high voltage lines and in the cable systems as a result of the capacitance between the ground and the line itself; in order to balance it and reduce the...

SEA produces a wide range of reactors: single-phase, three-phase, dry and liquid immersed SHUNT REACTORS (up to 40MVar) They are shunt connected with respect to the line. They are usually made with a magnetic gap core with normal pack for low powers and radial pack for higher powers. The design of the core and gaps must be made with utmost care, to ensure the stability of the rated performance along the time and avoid the occurrence of abnormal noise and vibrations. OSR-Oil-Filled Shunt Reactor DSR-Dry-Type Shunt Reactor LIMITING REACTORS FOR SHORT CIRCUIT CURRENT Usually, these are large...

PETERSEN COILS These are single-phase reactors (with or without magnetic core) that are connected between a machine star center and the ground. If the value of the reactance of the Petersen coil is calculated in a suitable manner, the current of a possible ground fault in the network can be remarkably reduced and, therefore, the immediate tripping of the protections can be avoided. PETERSEN PLUNGER TYPE COILS From the point of view of system engineering, they actually have the same function of fixed Petersen coils, but the reactance value is adjustable within a certain range. Therefore, the...

From tecnology to application The construction technology since windings, tank, insulation up to the principles of internal connection are the same as those applied in the transformers This does not mean that the different customizations requested by our customers are not taken intoconsideration. The operating conditions require specific analysis, depending on factors such as the installation temperature, humidity, voltage fluctuations and the environment in which the reactor will be placed. All reactors are tested in our laboratories with the most modern equipment that is available, in...

The transport and the site assemblingd SEA can deliver the transformer everywhere in the world Thanks to the experience gained over many years and to its qualified personnel SEA performs the shipping and reassembling on site, agreeing from time to time with the customer on the most appropriate approach. For shipments carried out to particularly critical sites or if requested by the customer SEA can equip the transformers with a sophisticated “impact recorder” that allows to keep the quality of the transport monitored. SEA is able to meet your needs with a modular and flexible intervention...

SEA S.p.A. reserves the right to improve its products at any time, without notice. Data and images are not binding and are subject to changes. © Copyright 2013 SEA S.p.A. All rights reserved. - Ed. 01/2013 SEA S.p.A. - Società Elettromeccanica Arzignanese Via Leonardo da Vinci, 14 36071 Tezze di Arzignano - Vicenza - Italy Tel. +39 0444 482100 - Fax +39 0444 482519 info@seatrasformatori.it