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Power quality—is generally an unseen problem that you'll only notice when you have an outage. However, in an industrial, commercial or critical infrastructure environment, degraded power quality is slowly eating away at your equipment, depleting your bank account, and reducing the lifespan of your sensitive electronics. Voltage sags, swells, harmonics, and electrical noise result in unexpected shutdowns, corrupted data and costly repairs. The answer is an Uninterruptible Power Supply (UPS) system-it's not just battery backup, but an active power conditioning device that corrects these problems before they even reach your load. Shenzhen Weitu Hongda Industrial Co., Ltd. is an ISO, CE, and FCC certified high-tech enterprise that considers power quality equally with runtime in their UPS, communications power, and energy storage solutions.
How Voltage Fluctuations Affect Sensitive Equipment
Sags, swells, and short interruptions in voltage are the most common power quality issues and can cause erratic behavior in your sensitive electronics.
Sags (dips): Voltage drops of even as little as 10 percent over a few cycles can cause logic controllers to reset, VFDs to shut down, or computers to crash. On the factory floor, an assembly line could be stopped; in the data center, critical database write operations could become corrupt.
Swells: Over-voltage conditions can degrade and ultimately destroy insulation and power supplies while causing early failure of electrolytic capacitors-especially voltage-sensitive LED lighting, medical imaging equipment and precision measurement instrumentation.
Momentary interruptions: Even just half-cycle (8-10ms) power losses can trip contactors and relays and force process controls to lose programmed set points.
A quality online UPS will supply continuous power from the inverter-fed from the utility or battery-completely isolating the load from voltage fluctuations. WTHD's UPS and power supply systems will always ensure the load is provided clean, conditioned power completely separated from the quality problems at the grid.
The Role of UPS Systems in Reducing Harmonics and Electrical Noise
Harmonics are signals found at multiples of the base 50/60Hz power frequency. This distortion of the waveform can be traced to nonlinear loads such as VFDs, rectifiers, switching power supplies, and LEDs. Harmonics can heat up transformers, trip breakers prematurely, and affect communications equipment. Electrical noise-or electromagnetic interference (EMI)-is a high-frequency interruption super-imposed on the power waveform, disrupting data transfer and causing instrumentation to deliver erroneous readings and microprocessor based controls to behave erratically.
A well designed UPS system is a protective buffer that eliminates both problems:
Online double - conversion UPS regenerate the waveform and will completely strip harmonics and noise from the utility power. The result will be a pure sine wave with low total harmonic distortion (THD) and little noise.
Input filters and power factor correction on premium UPS units will draw minimal harmonics from the grid, preventing the UPS from acting as a pollutant source.
WTHD's UPS, voltage stabilizer and transformer lines incorporate excellent filtering and extremely low THD on the output, making them ideal for critical, high-sensitivity applications in the medical, finance and communications industries where electrical noise must be eliminated.
Improving Equipment Lifespan Through Stable Power Supply
The relationship between power quality and equipment lifespan is direct and measurable. Electronics are designed to operate within specified voltage and frequency windows. Repeated exposure to sags, surges, and harmonics accelerates aging of components:
Capacitors dry out faster when subjected to ripple currents caused by harmonics.
Semiconductors experience increased switching losses during voltage sags.
Insulation degrades more quickly under repeated over voltage stress.
A UPS guarantees that your equipment is always provided with power within specifications for both voltage and frequency, dramatically increasing the lifespan of each device and eliminating unnecessary failures, costs, and maintenance. Long-term, multi-year operation where power quality is assured will demonstrably have lower maintenance costs and equipment replacement expenses.
WTHD's industrial UPS, communications power and energy storage systems are built for longevity-their extensive R&D center and numerous patents ensures that they design for excellent power quality as well as runtime. Their ISO9001, ISO14001, ISO45001, CE, FCC and TUV certifications have made them an industry trusted supplier of equipment for the telecommunications, energy, electricity, chemical, transportation, medical and financial industries.
Summary
You should not consider power quality an afterthought—it is critical to your equipment's longevity, your data accuracy and your operating costs. Voltage fluctuations, harmonics and electrical noise degrade your equipment, and a reliable online UPS will provide clean power to your loads, extending the life of your equipment and preventing costly downtime. With its renowned R&D center, numerous patents, and wide array of international certifications, Shenzhen Weitu Hongda Industrial Co., Ltd. offers superior power quality UPS systems, power supplies, solar inverters, and energy storage devices. Contact WTHD and find out how to protect your hardware with our UPS.