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> Power converter transformer for DC power supply
Power converter transformer for DC power supply unit
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Multiwinding transformer |
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Multiwinding transformer with phase-shifted primary winding
Installed in DC power supply unit in order to prevent harmonic current from flowing to Distribution or Transmission system.
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Property
- Glass fiber reinforced windings have so excellent mechanical strength as to withstand Short circuit or Sudden change of voltage and current.
- Multi pulse outputs of 6～24 can be achieved with one single transformer.
- Owing to the above property energy saving can be achieved in small footprint.
- Surge current flow to Secondary windings can be prevented by barrier
cylinder.
- Excellent in consistency of short circuit impedance among each windings.
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| Connection diagram of multi pulse tranformer |
| Connection |
Diagram |
Features |
3-phase bridge
(6-pulse) |
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Free from harmonics of 2nd and 3rd or with order of multiple of 3
Free from even-numbered order harmonics
Installed in devices of from tens of amperes to thousands of amperes. |
3-phase bridge
(12-pulse) |
 |
Free from harmonics of 2nd and 3rd or with order of multiple of 3
Free from even-numbered order harmonics
5th,7th,17th,19th or their multiple order harmonics are canceled each other
Installed in devices of from tens of amperes to thousands of amperes. |
3-phase bridge
(24-pulse) |
 |
Free from harmonics of 2nd and 3rd or with order of multiple of 3
Free from even-numbered order harmonics
5th,7th,17th,19th or their multiple order harmonics are canceled each other
Installed in devices of from tens of amperes to thousands of amperes. |
Double star
(6-pulse) |
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Free from harmonics of 2nd and 3rd or with order of multiple of 3
Free from even-numbered order harmonics
Installed in devices of from tens of amperes to thousands of amperes. |
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| Representative specifications of a transformer for DC power supply equipment |
| Pulse |
Capacity(kVA) |
Voltage(V) |
Frequency
(Hz) |
Connection |
Dimension(mm) |
Mass(kg) |
| Width |
Depth |
Height |
| 6-pulse |
190/259 |
480/60 |
60 |
Y/* |
1010 |
550 |
1260 |
1050 |
| 200/360 |
480/56 |
60 |
△/* |
930 |
550 |
1400 |
1030 |
| 1100/550-550 |
6600-3300/560-560 |
50 |
Y/△一△ |
1760 |
810 |
1893 |
3900 |
| 2000 |
11000/433 |
50 |
△/Y |
2300 |
1100 |
2085 |
6700 |
| 12-pulse |
800/400-400 |
6150/460-460 |
50 |
△/△-Y |
1740 |
1160 |
1730 |
2950 |
| 1000/500-500 |
6600/460-460 |
60 |
△/△-Y |
1840 |
900 |
1610 |
3200 |
| 1000/500-500 |
11000/433-433 |
50 |
△/△-Y |
1800 |
865 |
1750 |
3900 |
| 24-pulse |
50/12.5×4 |
6600/200×4 |
60 |
△/
Extended△(-15°)-
△(O°)-
Extended△(+15°)-
Y(+30°)- |
940 |
435 |
980 |
680 |
*Product with customized specification is also available
*Dimensions or mass might be changed without notice. |
