Trackside converter for dynamic reactive power compensation
KONTRAC PN225AC
KONTRAC PN225AC is a trackside converter which is used for dynamic reactive power compensation. It is used in substation facilities 110kV/25kV in which devices for fixed reactive power compensation have already been installed. The converter compensates variable amount of reactive power which can fluctuate considerably during a given time period. The range of compensated reactive power of each converter is from 225kVAr capacitive to 225kVAr inductive. If a higher range of compensated reactive power is needed, it can be accomplished by parallel connection of several converters. The input stage of the converter is made of robust components dimensioned for rolling stock converter applications which makes this converter KONTRAC PN225AC resistant to spikes, sags and surges that are likely to appear in overhead lines.
The use of this proven and reliable technical solution enables significant reduce of excessive reactive power and associated costs, thus making it a perfect solution for sustainable development.
Features
Two converters KONTRAC PN225AC will be installed in Mrzlo polje, Croatia.
- Rolling stock converter technology
- Robust input stage of converter
- Current and voltage on high-voltage side are in phase
- Line friendly
- Latest IGBT technology
- Easy maintenance
- Modular design of power units
- Air cooling
Technical data
| Input voltage | 400V, 50Hz over transformer 25kV / 400V |
| Minimum input voltage | 280V (equivalent to 17,5kV of overhead line voltage) |
| Maximum input voltage | 480V (equivalent to 29kV of overhead line voltage) |
| Nominal power | ± 225 kVAr |
| Cooling | Forced air-cooling |
| Size | 1200 x 800 x 2100 mm |
| Weight | 700 kg |
| Mounting place | Substation |
| Connecting interface | CAN / Ethernet |
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