Single-phase shell-type transformers

Main application sectors

  • Industrial

  • Power Electronics

  • Automotive

  • Electromedical

  • Railway and Marine

  • Data Center

  • Hydrogen and Renewable Energy

Main technical features

  • Power: 25 VA – 5000 VA
  • Degree of protection: IP00
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Description

The single-phase shell-type transformers manufactured by GTS Elettrotecnica represent an innovative, efficient, and highly versatile technical solution, ideal for a wide range of industrial, commercial, and residential applications.

The term “shell-type” refers to the unique structure of the magnetic core, composed of laminations shaped into two distinct elements: one with an E-shaped configuration and the other with an I-shaped configuration. The concentric windings are positioned on the central column of the E-shaped lamination, while the two outer columns completely enclose the windings, thereby completing the magnetic circuit. Finally, the I-shaped element effectively closes the magnetic circuit, ensuring stability and consistent performance.

This configuration ensures uniform distribution of the magnetic flux, promoting reduced energy losses, improved efficiency, and better management of heat generated during operation. This makes shell-type transformers particularly suitable for sensitive applications where reliability and efficiency are crucial. Resin impregnation and curing complete the manufacturing process.

Every model of GTS Elettrotecnica’s single-phase shell-type transformers can be fully customized to meet the customer’s specific technical requirements, including input and output voltages, physical dimensions, and the selection of optional accessories.

Production that strictly complies with the highest international standards for safety and insulation, combined with the use of selected high-quality materials, makes GTS Elettrotecnica’s single-phase shell-type transformers an excellent choice for those seeking robust, reliable, and durable devices capable of adapting perfectly to any type of installation.

Main optional accessories

  • Electrostatic shields for protection against interference;
  • Integrated bimetal thermostat (Klixon) for temperature control;
  • PT100 thermocouples;
  • Lexan protection for electrical connections;
  • Fuse-holder terminals for additional protection;
  • Metal enclosure for higher IP protection ratings;
  • Tropicalized version or other.

    Technical features

    Rated power

    from 25 VA to 5000 VA

    Class of protection

    IP00

    Applicable standards

    CEI EN 61558-2-1
    CEI EN 61558-2-4
    CEI EN 61558-2-6
    CEI EN 61558-2-15
    CEI EN 60601-1-1
    UL/CSA upon request

    Insulation class

    Configurable according to the customer’s needs 

    Input / output voltages

    Configurable according to the customer’s needs 

    Conductors

    Single-wire, multi-wire (Litz wire), used individually or in combination

    Winding materials

    Copper or Aluminum 

    Metal structures and fasteners

    Galvanized iron or stainless steel

    Cooling

    Natural air or forced air

    Temperature rise class

    B up to 2500VA power, above that Class F 

    Examples of dimensions

     

    Power  Dimensions mm.  Weight   Losses     Power  Dimensions mm.  Weight   Losses 
    VA  A  B  H  Kg.  W     VA  A  B  H  Kg.  W 
    25  77  85  80  1,1  4     400  125  140  112  7,4  40 
    30  77  90  80  1,2  5     500  153  136  141  8  35 
    40  77  95  80  1,35  6     600  153  146  141  9,2  38 
    50  86  90  87  1,5  8     750  153  156  141  10,4  52 
    60  86  95  87  1,6  10     850  153  166  141  11,7  60 
    70  86  105  87  1,95  11     1000  153  186  141  14,2  60 
    80  99  93  96  2  11     1250  183  165  165  15,5  75 
    100  99  97  96  2,2  13     1500  183  175  165  19,8  90 
    120  99  101  96  2,35  15     1750  198  180  180  21,8  100 
    150  99  120  96  3,3  20     2000  198  200  180  26,5  120 
    180  99  120  96  3,3  24     2250  198  210  180  28  130 
    200  125  100  112  4,1  24     2500  198  230  180  31  140 
    250  125  110  112  4,9  28     3000  240  190  232  35  150 
    300  125  120  112  5,9  32     4000  240  220  232  44  200 
    350  125  130  112  6,6  36     5000  240  250  232  55  250 

    Custom builds according to the customer’s technical specification 

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