THREE-PHASE TRANSFORMERS ( SERIES)

The three-phase transformers of a serial with natural air cooling for an alternating current circuit of frequency 50 - 60 Hz are intended for power supply of an electric tools, control circuits and low-voltage lighting lines.

Original design solutions protected by the patent (2398300) provide the basis for transformers magnet system.
The transformers meet all European standards.


Type of the transformer

Nominal power, kVA

No-load

current,%

Impedance voltage, %

Coefficient of efficiency, %

Overall dimensions, mm

 Mass, kg

L 

B 

H 

- 0,25

0,25

28

4,8

90

275

      150

     245

     11,5

- 0,4

0,4

26

4,6

91

310

      180

     275

     13,5

- 0,63

0,63

24

4,4

92

335

      205

     330

      15

- 1,0

1,0

22

4,2

93

335

      205

     330

      20

- 1,6

1,6

20

4,0

94

390

      255

     420

      25

- 2,5

2,5

18

3,8

95

390

      255

     420

      27

- 4,0

4,0

16

3,1

96

520

      270

     460

      55

                                                         



High voltage, V 380(220)
Low voltage, V 12÷380
The scheme and group of winding connection Y/Y-0; Y/Δ-11
The class of an insulation heat-resistance
Protection degree according to 14254 IP21
Testing voltage, V 4000