Parameter |
UoM |
Value |
Power |
kVA |
400 |
Number of phases |
- |
3 |
PW voltage |
kV |
6.0, 6.3, 10.0, 10.5 |
PW voltage control steps |
% |
±2х2.5 |
VW voltage* |
kV |
0.4; 0.44; 0.475; 0.58; 0.6; 0.69; 0.765 |
Winding arrangement and phase-displacement group |
- |
Y/Y-0; Y/D-11; D/Y-11; D/D-0; Y/Yn-0; D/Yn-11 |
Heat resistance class of the transformer as per GOST 8865-93 |
- |
H (180 °С) |
Heat resistance class of the insulation as per GOST 8865-93 |
- |
200 (200 °С) |
Winding material |
- |
Cu |
Type of cooling system |
- |
Air Natural Vertical cooling channels in valveside and power windings. |
Insulation type |
- |
Air-barrier monolith |
Conductor insulation material |
- |
Polyimide-fluoroplastic film with two layers of fiber glass filament |
Losses ХХ |
W |
1300 |
Current ХХ |
% |
1.4 |
SC losses (at t=115 °С) |
W |
4900 |
SC voltage |
% |
4.0 |
Climatic version: |
- |
U; UHL; T |
Placement category |
- |
2; 3; 4 |
Protection rating according to GOST 14254-96 |
- |
IP21; IP31 |
Technological advantages:
- Winding is protected using glass-containing tapes impregnated in the compound.
- Monolithic windings with a triple impregnation-curing cycle in the compound with increased concentration of silicon.
- Pressing of the yoke with yoke beams pulled together with studs.
*Other valveside winding voltages are possible as per the Customer's requirements