S&C PureWave® Family of Power Quality Products
What’s Your Power Quality Problem?
With the ever-increasing use of sophisticated controls and equipment in industrial, commercial, institutional, and governmental facilities, the continuity, reliability, and quality of electrical service has become extremely crucial to many power users. Electrical systems are subject to a wide variety of power quality problems which can interrupt production processes, affect sensitive equipment, and cause downtime, scrap, and capacity losses. Momentary voltage fluctuations can disastrously impact production . . . extended outages have a greater impact.
The most common power quality problems are:
Voltage Sags
Voltage sags are the most common power problem encountered. Sags are a short-term reduction in voltage, and can cause interruptions to sensitive equipment such as adjustable-speed drives, relays, and robots. Sags are most often caused by fuse or breaker operation, motor starting, or capacitor switching. Voltage sags typically are non-repetitive, or repeat only a few times due to recloser operation. Sags can occur on multiple phases or on a single phase and can be accompanied by voltage swells on other phases.
Power Interruptions
Power interruptions are zero-voltage events that can be caused by weather, equipment malfunction, recloser operations, or transmission outages. Interruptions can occur on one or more phases and are typically short duration events, the vast majority of power interruptions are less than 60 seconds.
Voltage Flicker
Voltage flicker is rapidly occurring voltage sags caused by sudden and large increases in load current. Voltage flicker is most commonly caused by rapidly varying loads that require a large amount of reactive power such as welders, rock-crushers, sawmills, wood chippers, metal shredders, and amusement rides. It can cause visible flicker in lights and cause other processes to shut down or malfunction.
Which PureWave Product Is Right For You?
Use the product selection table below to determine the best solution for your power quality problem or click here to use our Power Quality Product Selector tool:
| Power Quality Problem |
Power Quality Solution | ||
|---|---|---|---|
| Uninterruptible Power Supply System | Distributed Static Compensator | Adaptive VAR Compensator | |
| Voltage Sags < 50% |
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| Voltage Sags > 50% | |
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| Power Interruptions < 60 Seconds |
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| Power interruptions > 60 Seconds |
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| Voltage Flicker | |
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When applied with a backup generator.