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.
In addition to enhancing power quality and efficiency of the electrical network, and ensuring grid compliance, PQCR contributes to:
- 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
Note: Stepless power compensator PQC-STATCON has now been renamed as PQCR
Brief performance data
| Parameters | 3 Ph | 1 Ph |
|---|---|---|
| Nominal voltage | 380 - 440 V | 380 - 440 V |
| Maximum kvar support | 375 kvar | 275 kvar |
| Maximum capacity per unit | 520 A(RMS) | 665 A(RMS) |
| Maximum kvar support @ voltage | 415/440 V | 415/ 440 V |
| 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 |
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