| Items |
Unit |
Value |
| High Voltage Unit |
Rated Frequency |
Hz |
50 |
| Rated Voltage |
kV |
7.2 |
12 |
| Rated Current |
A |
400, 630, 1250 |
| Transferred Current |
A |
1200~2000 |
| Rated Short Duration withstand Current |
kA |
12.5(2s/4s), 16(2s/4s), 20(2s/4s) |
| Rated Peak withstand Current |
kA |
31.5 or 40 or 50 |
| Power Frequency withstand Voltage (phase-phase, phase-earth/phase-end) |
kV |
32/36 |
42/48 |
| Lightning Impulse withstand Voltage (phase-phase, phase-earth/phase-end) |
kV |
60/70 |
75/85 |
| Rated Short Circuit Current (Fuse) |
kA |
31.5 |
| Breaking Load Transformer capacity |
kVA |
1600 |
| Transformer Unit |
Rated Voltage |
kV |
7.2, 12 |
| Rated Capacity |
kVA |
30~1600 |
| Tapping Range |
% |
±2 x 2.5%, ±5%
|
| Connection Arrangement |
|
Yyb0, Dyn11 |
| Impedenance Voltage |
% |
4, 4.5, 6, 8 |
| Low Voltage Unit |
Rated Voltage |
V |
380/220, 660/380 |
| Main Cirucit Rated Current |
A |
50~2500 |
| Branch CircuitCurrent |
A |
50~800 |
| Main Circuit Rated Short Duration withstand Current |
kA |
15(1s), 30(1s), 50(1s), 65(1s) |
| Main Circuit Rated Peak withstand Current |
kA |
30, 63, 110 |
| Enclosure |
Protection Level ( Standard) |
|
High Pressure chamber : IP33,
Transformer Chamber: IP23
Low Pressure Chamber: IP33
|
