Support-type current transformers ТОП-0,66-I (TOP-0,66-I) and bus-bar current transformers ТШП-0,66-I (TSHP-0,66-I)

Support-type current transformers ТОП-0,66-I (TOP-0,66-I) and bus-bar current transformers ТШП-0,66-I (TSHP-0,66-I)

Current transformers TOP-0,66-IApplication

The transformers are intended for transmitting of the measuring information signal to the measuring instruments in the alternate current equipment with the frequency 50 or 60 Hz and rated voltage value up to 0,66 kV inclusive.
The transformers of the accuracy class 0,2, 0,5, 0,2S, 0,5S can be used in accounting schemes in customer calculations, and those of the accuracy class 1 - in the measuring schemes.

The transformers are manufactured in climatic versions "M" (temperate) and "T" (tropical) according to the standard requirements of GOST 15150 location category 3. The transformer is intended for usage under the following operating conditions:

altitude above sea level is not higher than 1000 m; ambient air temperature: within operation period - from minus 50 °C to plus 50 °C, within transportation and storage periods - from minus 50 °C to plus 50 °C; ambient air humidity is 98% at 25 °C; environment should be non-explosive corresponding to atmosphere II GOST 15150, without dust, reactive steams and gases in concentrations that are likely to destroy metal or insulation; mounting in any position.

Support transformer TOP-0,66-I is supplied with copper bus-bar sheath with tin. Transformer TSHP-0,6-I6 may be supplied with copper bus-bar sheath with tin on customer's demand.

The transformer body is made from hard inflammable self-extinguishing thermoplastic. 

Warranty period - 8 years from the date of going to operation, but no more than 8,5 years from the date of sale.

Table 1. Technical data of transfromers TOP-0,66-I 

Rated primary current, А

Rated secondary burden with active-inductive power coefficient , VA

Accuracy class

cos φ = 0,8

cos φ = 1

1; 5; 10; 15; 20; 30; 40; 50; 75; 80; 100; 150

3; 5; 10

1

0,2S; 0,5S; 0,5; 1

15

-

0,5*; 1

40; 80

3; 5

1

0,2*

* For transformation coefficients 40/1 and 80/1

Table 2. Technical data of transformer TOP-0,66-I

Rated primary current, A

Rated secondary current, A 

Accuracy class

Instrument security factor at rated secondary burden, VA

3

5

10

1; 5; 10; 15; 20; 30; 50; 75; 100; 150

1

0,2S

5,5

4

3

40; 80

6

4,5

20; 40; 100

0,5S

4,5

3,5

1; 5; 10; 15; 30; 50; 75; 150

4

3

1; 5; 10; 20; 40; 50; 100

0,5

9

7

6

15; 30; 75; 80; 150

4

3

40; 80

0,2

12

9

-

1; 5; 10; 15; 20; 30; 40; 50; 75; 80; 100; 150

5

0,2S

5

4

3

0,5S

14

9

1; 5; 10; 20; 40; 50; 100

0,5

10,5

7

6

15; 30; 75; 80; 150

14

9

Таблица 3. Technical data TSHP-0,66-I

Rated primary current, A Rated secondary burden, VA
Rated secondary current, A Accuracy class
75, 80 1; 2 5; 1 0,5
75 (5) 5 5
80 5; 1 3
100 1; 2; 3 5; 1 0,5
(5) 1
150 10 3
1; 2; 3; (5) 0,5; 0,5S
200 1; 2; 3; (5); 10 0,5; 0,5S
300 10 0,5; 0,5S
15 1
1; 2; 3; (5) 0,5; 0,5S; 0,2S
400 1; 2; 3; (5); 10 0,5; 0,5S; 0,2S
15 0,5
500 1; 2; 3; (5); 10; 15 0,5; 0,5S; 0,2S
20 0,5
600* 1; 2; 3; (5); 10; 15 5 0,5; 0,5S; 0,2S
20; 30 0,5

* May be mounted only on cable                                      Standard secondary burden is shown in brackets

General view of transformer (drawing)