LIQUID IMMERSED TRANSFORMERS

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 technology...

Designed to meet our Customer’s needs, from small to large industrial users For more of 50 years, SEA has been designing and producing this type of transformers, adopting constructive solutions, the unification of details and modern and technologically advanced equipment. These transformers immersed in insulating liquid with corrugated case, developed according to 3 different construction methods: transformers with conservators hermetic transformers WiTH nitrogen cushion (RADIATOR CAsE) 3

From concept to realization Years of experience developed into strict calculation procedures, modern design and verification programs are the basis of the technology that allows the engineers of SEA to face successfully any technological development and the most complicated design solutions requested by our customers. SEA avails itself of technologies, machinery and equipment for realizing all possible technical and construction solutions involving the transformers of the TTO series. This versatility allows optimizing the thermal sizing, insulation and resistance to overloads or heavy usage cycles...

BOX-TERMINALS One customization for each installation requirement The INDOOR and OUTDOOR maximum installation flexibility - from the offshore, up to the lowest temperatures or desert environments - is available with a full range of BOXES protecting the terminals with all degrees of protection and all connection options. The protection degrees can be studied with customized solutions to meet any need that may arise. tank-cover-cooling a durable reliability The insulating liquid used is absolutely free of PCBs and PCTs. It is possible to ask for the filling with high flash point oils (e.g. silicone...

Solutions studied to cover all the production requirements in terms of both construction and installation, bearing in mind that the objective of the transformer manufacturers and a precise need of end users is to anticipate any faults and limit the possible consequences in case of failure of the transformer itself: More than 20 types of accessories for the safety of the transformer Several types of bushings (made of porcelain, epoxy resin, silicone rubber and condenser bushings...) Various types of protections for the achievement of the desired IP degree Various types of off-load and on-load...

Standard oil level indicator The oil level indicators with magnetic joint are normally used in the transformers conservators, with the aim to give a visual signal of the contained insulating liquid. They have the switches to signal the alarm in case the liquid reaches the minimum and/or maximumn level. The oil level indicators dials can have the dimensions of 140, 220 and 340 mm with axial or radial movement of the floating rod. The axial type is very often used in case of transformers with nytrogen cushion. In adding other three types are available for distribution transformers, they have magnetic...

Busbars and Inner cone bushings The Busbars bushings EN 50387, ENEL DJ1107-1109 and BS 2562/1979 are suitable for transformers filled with insulating liquid for both indoor and outdoor applications with protective cap. The bushings consist of a bar protected by a galvanic coating and co-molded into an insulating resin flange. They are also available with special lengths and drillings according to customer’s request. With regard to the resin bushings with plug connection and inner cone coupling interface, they are manufactured in compliance with DIN 47637 - ENEL DJ1111 and DJ1108. Composite bushings...

SEA Service The transport and the site assembling 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 [email protected]