Three-phase Converter Transformers

Transformers are designed for use with thyristor converters.
In standard design, the transformers are adjusted to fastening by means of a base welded into core or screwed angles.
If agreed, the transformers may have more tappings. The windings terminals may be placed on one side only, or on both sides of a transformer. Upon request, the transformers may be assembled in enclosures with the protection degree of IP 23, IP 44 and IP 54 with the possibility to insert supply cables through glands.

Product for:

Details:

Design	Three-phase converter transformers ET3oB, ET3SB are produced in accordance with in accordance with requirements of relevant transformer standards and EN/IEC 61378-1
Insulation class	B(130^oC) - standard up to 5 kVA; F(155^oC) - standard above 5 kVA
Climatic class/Environmental class	C1/E0 - land design; C2/E1 - maritime design
Ambient temperature	40^oC
Protection degree	IP 00
Protection class	I
Frequency	50/60 Hz
Vector group	Yy0 - standard
Primary voltage	up to 1000 V
Secondary voltage	up to 1000 V
Terminals	screw terminal blocks, cable lugs or copper bus bars
Fastening	by means of angles

Technical sketch


Exemplary design	Exemplary design

Dimension table

Technical data of examples of single-phase converter transformers type ET3oB and ET3SB

Type of transformer	Power [kVA]	Sample data	L [mm]	B [mm]	H [mm]	d [mm]	e [mm]	f [mm]	Weight [kg]
ET3oB, ET3SB	0,03	3x100V/3X100V Yd11	190	110	165	170	78	8 x 12	10
ET3oB, ET3SB	1,5	3x400V/3x230V Dy5	240	140	222	190	115	11 x 15	21
ET3oB, ET3SB	42,3	3x380V/3x61,5V/3x61,5V Dd0y11	540	450	525	490	280	11 x 15	312
ET3oB, ET3SB	150	3x380V±5%V/3x28V Diil	870	570	900	660	820	13 x 18	913
ET3oB, ET3SB	375	3x380V±5%V/3x69,5V Diii	1050	735	955	850	451	17 x 25	1942