Power transformers (3-ph., sealed, ONAN) with Voltage class 6-20 KV

Power transformers (3-ph., sealed, ONAN) with Voltage class 6-20 KV
Power transformers (3-ph., sealed, ONAN) with Voltage class 6-20 KV Power transformers (3-ph., sealed, ONAN) with Voltage class 6-20 KV Power transformers (3-ph., sealed, ONAN) with Voltage class 6-20 KV Power transformers (3-ph., sealed, ONAN) with Voltage class 6-20 KV Power transformers (3-ph., sealed, ONAN) with Voltage class 6-20 KV Power transformers (3-ph., sealed, ONAN) with Voltage class 6-20 KV Power transformers (3-ph., sealed, ONAN) with Voltage class 6-20 KV Power transformers (3-ph., sealed, ONAN) with Voltage class 6-20 KV Power transformers (3-ph., sealed, ONAN) with Voltage class 6-20 KV Power transformers (3-ph., sealed, ONAN) with Voltage class 6-20 KV Power transformers (3-ph., sealed, ONAN) with Voltage class 6-20 KV

Transformers are designed for the transmission and distribution of power energy electrical unit feeding the electric plants.

Transformers with off-circuit tap changer on the HV side, the range of tap-changing ± 2 x 2,5% ± 2 stapes, with ONAN cooling system, with the corrugated walls of tank, which provide the needed surface of cooling.

Energy-saving three-phase oil-immersed hermetically sealed general purpose power transformers voltage class 6-10 kV
Type, regulatory document Rated voltage, kV Connection of windings Losses, kW Total Weight, kg
HV LV no load loss short-circuit loss
3-ph., sealed, ONAN 40 kVA, 10 kV 6; 10 0,4 У/Ун-0;
У/Zн-11 		0,165
0,175 		0,88
0,1 		375
3-ph., sealed, ONAN 63 kVA, 10 kV 6; 10 0,4 У/Ун-0;
У/Zн-11 		0,21
0,23 		1,23
1,44 		452
3-ph., sealed, ONAN 100 kVA, 10 kV 6; 10 0,4 Д/Ун-11
У/Ун-0;
У/Zн-11 		0,26
0,26
0,285 		1,92
1,92
2,1 		540
3-ph., sealed, ONAN 160 kVA, 10 kV 6; 6,3;
10; 10,5 		0,4 У/Ун-0
Д/Ун-11
У/Zн-11 		0,355
0,355
0,37 		2,9
2,9
3 		770
3-ph., sealed, ONAN 250 kVA, 10 kV 6; 6,3;
10; 10,5 		0,4 У/Ун-0;
Д/Ун-11
У/Zн-11 		0,5
0,5
0,56 		3,7
3,7
3,9 		1040
3-ph., sealed, ONAN 400 kVA, 10 kV 6; 6,3;
10; 10,5 		0,4 У/Ун-0;
Д/Ун-11 		0,63 5,4 1330
3-ph., sealed, ONAN 630 kVA, 10 kV 6; 6,3;
10; 10,5 		0,4 У/Ун-0;
Д/Ун-11 		0,76 7,5 1760
3-ph., sealed, ONAN 1000 kVA, 10 kV* 6; 6,3;
10; 10,5 		0,4 У/Ун-0;
Д/Ун-11 		1,055 9,81 2650
3-ph., sealed, ONAN 1600 kVA, 10 kV* 6; 6,3;
10; 10,5 		0,4 У/Ун-0;
Д/Ун-11 		1,36 16,1 3900
3-ph., sealed, ONAN 2500 kVA, 10 kV** 6; 10 0,4 У/Ун-0;
Д/Ун-11 		2,25 22 5420
Standard three-phase oil-immersed hermetically sealed general purpose power transformers voltage class 6-10 kV
Type, regulatory document Rated voltage, kV Connection of windings Losses, kW Total Weight, kg
HV LV no load loss short-circuit loss
3-ph., sealed, ONAN 250 kVA, 10 kV 6; 10 0,4 У/Ун-0;
Д/Ун-11 		0,53 3,9 950
3-ph., sealed, ONAN 400 kVA, 10 kV 6; 10 0,4 У/Ун-0;
Д/Ун-11 		0,715 6,15 1198
3-ph., sealed, ONAN 630 kVA, 10 kV 6; 10 0,4 У/Ун-0;
Д/Ун-11 		0,96 8,35 1710
3-ph., sealed, ONAN 1000 kVA, 10 kV* 6; 10 0,4 У/Ун-0;
Д/Ун-11 		1,12 11,75 2454
3-ph., sealed, ONAN 1250 kVA, 10 kV 6; 6,3;
10; 10,5 		0,4 У/Ун-0;
Д/Ун-11 		1,36 12 2894
3-ph., sealed, ONAN 2500 kVA, 10 kV** 6; 10 0,4 У/Ун-0;
Д/Ун-11 		2,6 29 5010
Standard three-phase oil-immersed hermetically sealed general purpose power transformers voltage class 20 kV
Type, regulatory document Rated voltage, kV Connection of windings Losses, kW Total Weight, kg
HV LV no load loss short-circuit loss
3-ph., sealed, ONAN 250 kVA, 20 kV 20 0,4 У/Ун-0;
Д/Ун-11 		0,53 3,5 1224
3-ph., sealed, ONAN 400 kVA, 20 kV 20 0,4 У/Ун-0;
Д/Ун-11 		0,66 5,5 1673
3-ph., sealed, ONAN 630 kVA, 20 kV 20 0,4 У/Ун-0;
Д/Ун-11 		0,92 7,1 2065
Three-phase oil-immersed hermetically sealed flanged mounted general purpose power transformers for side connection of bars
Type, regulatory document Rated voltage, kV Connection of windings Losses, kW Total Weight, kg
HV LV no load loss short-circuit loss
3-ph., sealed, ONAN 400 kVA, 10 kV 6; 6,3;
10; 10,5 		0,4 У/Ун-0;
Д/Ун-11 		0,63 5,4 1330
3-ph., sealed, ONAN 630 kVA, 10 kV 6; 6,3;
10; 10,5 		0,4 У/Ун-0;
Д/Ун-11 		0,76 7,5 1760
3-ph., sealed, ONAN 1000 kVA, 10 kV 6; 6,3;
10; 10,5 		0,4 У/Ун-0;
Д/Ун-11 		1,055 9,810 2650
3-ph., sealed, ONAN 1250 kVA, 10 kV 6; 6,3;
10; 10,5 		0,4 У/Ун-0;
Д/Ун-11 		1,36 12 2894
3-ph., sealed, ONAN 1600 kVA, 10 kV 6; 6,3;
10; 10,5 		0,4 У/Ун-0;
Д/Ун-11 		1,36 16,1 3900
3-ph., sealed, ONAN 2500 kVA, 10 kV 6; 10 0,4 У/Ун-0;
Д/Ун-11 		2,6 29 5010

* - Add-on device can be installed on the customer's request (electric-contact vacuum manometer, alarm thermometer)
** - transformer is equipped electrocontact vacuum pressure gauge and alarm thermometer


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