Transformers with Vv winding arrangement, 3TTV type
Purpose and design
Transformers with windings in the Vv configuration are special transformers with the windings placed on the two outermost columns. The centre column is not wound. The windings are connected in such a way as to enable the load of the three-phase network. Transformers with Vv windings enable single-phase high- power loads to be supplied from a three-phase network. We manufacture Vv transformers for any power and voltage required. By agreement, transformers can be supplied in IP 23, IP 44 and IP 54 enclosures with power cable routing through cable glands.
Upon agreement, we can manufacture a non- standard device with the required technical parameters.
The manufacturer reserves the right to make changes to the parameters due to technical product developments.
Technical Standards EN/IEC 61558, EN/IEC 60076
Power from 10 to 1600 kVA
Primary/secondary voltage up to 1000 V / up to 1000 V
Connection group Vv layout
Frequency 50 / 60 Hz
Protection classIP00 or IP23
Insulation class F (155°C) or H (180°C)
Ambient temperature from -25°C to +40°C
Environment class C1/E0 – land based, C2/E1 – mining and offshore
Protection class class I
Mounting by means of brackets