A New Generation in Power Factor Correction
Today's automation equipment benefits us with greater convenience as well as cost savings from higher production efficiency. However, it can also bring significant wave distortion problems to the power grid that can lead to energy loss, increasing costs and many other power quality issues.
A clean and efficient power system normally generates a sinusoidal current waveform, but the electrical equipment used on today's industrial automation industry generates non-sinusoidal currents that tend to cause many power quality problems. Voltage or current distortion, reactive power impact and unbalanced loads are common problems that lower power reliability and power efficiency and also increase operation costs.
In most cases, reactive power is the power that magnetic equipment such as transformers, motors and relays, needs to produce magnetizing flux, which is inductive. In some cases, long distance power cables and some loads generate capacitive reactive power. Both inductive and capacitive reactive power will increase the apparent power (kVA), demanding larger transformers and cable size.
Poor Power Quality can be described as any event related to the electrical network that ultimately results in a financial loss. Possible consequences of poor Power Quality include:
- Harmonic resonance that sabotages power distribution system stability
- Equipment failure or malfunction due to harmonics
- Increased investment in oversized transformers and cables
- Increase in power system losses and heat
- Electronic communications interference
- Electrical penalty bills due to low power factor
- Unexpected power supply failures such as breakers tripping, fuses blowing, etc.
Delta Power Quality Solution
Delta's power quality solution provides an active compensation solution based on power electronics technology.
Compared with conventional passive compensation solutions such as capacitor banks, an active compensation solution improves the reliability and quality of the power distribution system.
Key benefits include:
- Steplessly compensate both inductive and capacitive reactive power
- Correct load imbalance - both negative and zero sequence mitigates neutral current
- High speed response - track dynamic reactive power < 0.1msec
- Extremely accurate with capability to control to unity with no fear of over correction
- Active compensation technology avoids harmonic resonance from the principle
- Flexible application - modular design, embedded in standard or customised cabinet. Wall mount option
- Long life - MTBF > 100,000 hrs (typically 10 to 15 years)
- Wide capacity range: 50kvar~700kvar for a single cabinet, up to 10 cabinets in parallel
- Environmental adaptability: -10~50°C temperature, compatible with diesel generators
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