Instantaneous stepless reactive power compensator PQCR+
Low/medium voltage reactive power compensation solution for inductive and capacitive loads
PQCR+ is a solid state reactive power compensation solution with high reliability and low loss for dynamic and highly fluctuating loads. A single module is rated up to 375 kvar in 3-Ph and 275 kvar in 1-Ph at 415V (or 440V) and is designed with a small footprint. An overall reactive power compensation rating up to 12000 kvar can be reached by paralleling modules in a hybrid topology. PQCR+ technology works on the principle of Voltage Source Converter (VSC) using high power IGBTS and low loss film capacitors.
PQCR+ has the additional feature of mitigating harmonics along with its essential features of load balancing and instantaneous and stepless reactive power compensation. PQCR+ enhances power quality and efficiency of the electrical network, ensures grid compliance, as well as provides other benefits like:
- A positive impact on reducing system losses and carbon footprint
- Lower maintenance need and enhance life of electrical installations
Applications
- Inductive and capacitive loads
- Three phase and single phase applications
- Highly fluctuating loads (arc furnace loads, spot welding loads, DC drives etc)
- Industrial loads fed by weak networks
- Railway applications
Why Hitachi Energy?
PQCR+ is a versatile product that comes with following features:
- Suitable for low and medium-voltage networks with step-up transformer
- Easy and convenient operation with touchscreen interface
- Easy installation and commissioning
- No risk of harmonic amplification
- Dedicated R&D team with extensive experience
Brief performance data
| Parameters | 3 Ph | 1 Ph |
|---|---|---|
| Nominal voltage | 380 - 440 V | 380 - 440 V |
| Maximum kvar support | 325 kvar | 210 kvar |
| Maximum capacity per unit | 450 A(RMS) | 500 A(RMS) |
| Maximum kvar support @ voltage | 415/440 V | 415/ 440 V |
| Harmonics to filter3 | 4 individual harmonics from 5th to 13th | 4 individual harmonics from 3rd to 11th |
| Network frequency | 50/60 Hz | 50/60 Hz |
| Response time | <20 ms | <20 ms |
| Number of parallel operations | 32 | 32 |
| Communication features | Ethernet/LAN port | Ethernet/LAN port |
| Target power factor setting (inductive/capacitive) | Programmable from 0.6 (inductive) to 0.6 (capacitive) | |
| Acoustic noise level | 60 dB | 60 dB |
| Dimensions (without doors and roof) WxDxH | 900x900x2000 mm | 900x900x2000 mm |
| var compensation |
Yes |
Yes |
| Load unbalance compensation |
Yes | NA |
| Unbalance compensation range | 50 and 100% | NA |
| Ambient temperature | -5 to 40°C | -5 to 40°C |
| Enclosure IP protection | IP30 | IP30 |
| Relative humidity | 0-95% | 0-95% |
| Product standard | IEC 61439 | IEC 61439 |