Current transformers of the TOГ series

Current transformers of the TOГ series

Current transformers of the TOM series are manufactured as single-stage for voltage 123, 362, 525 kV, two-stage for voltage of 750 kV.

External insulation of transformers - porcelain cover.

The main internal insulation is oil-paper, capacitor type, located on the ring-shaped secondary winding.

The transformers have five secondary windings.

The design is sealed. The advantages of transformers are: a wide range of products in terms of rated primary current and accuracy class (0.2; 0.5; 0.2S; 0.5S; 5P; 10P);

the ability to manufacture products with any combination of accuracy class and rated secondary load; high reliability and measurement accuracy. Our plant produces the following TOM transformers:

ТОМ 123, ТОМ 362 (ТФРМ 330Б), ТОМ 525 (ТФРМ 500Б), ТОМ 765 (ТФРМ 750А).

Типы трансформаторов

Номинальный первичный ток, А

Номинальный вторичный ток, А

Количество вторичных обмоток

Ток термической стойкости, kA

Ток электро-
динамической стойкости, kA

для защиты

для измерений

ТОМ 123 III УХЛ1

50-100-200, 75-150-300, 100-200-400, 150-300-600, 300-600-1200, 400-800, 500-1000-2000

1 или 5

5 или 4

1 или 2

4-8-16; 5-10-20; 7-14-28; 10-20-40; 20-40-80; 20-40; 25-50-100

9-18-32; 12-24-48; 16-32-64; 25-50-100; 50-100-200; 50-100; 65-130-260

ТОМ 362 II–II.Г У1
(ТФРМ 330Б-II.1 У1)

1000-2000, 1500-3000

1

4

1

63

160

ТОМ 525 II Н У1
(ТФРМ 500Б У1)

1000-2000, 1500-3000, 2000-4000

1

4

1

47

120

ТОМ 525 II–II.Н У1
(ТФРМ 500Б-II У1)

1000-2000, 1500-3000, 2000-4000

1

4

1

47

120

ТОМ 765 I Г У1
(ТФРМ 750А У1)

1000-2000, 1500-3000, 2000-4000

1

4

1

47

120

ТОМ 765 I–I.Г У1
(ТФРМ 750А-I.1 У1)

1000-2000, 1500-3000, 2000-4000

1

4

1

47

120

  Transformers are designed to transmit a signal of measuring information to devices for measurement, protection, automation, signaling and control in electrical circuits of alternating current with a frequency of 50Hz or 60Hz, manufactured for supply within the country, to the CIS countries and for export to countries with a temperate, cold climate. The plant uses software, computer-aided design and production preparation systems, which makes it possible to drastically reduce the production time of products and improve their quality.