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The quality of electrical power is business-critical. As the technology advances, electrical tools and machinery are becoming more sensitive to network disturbances (eg, voltage sags), leading to expensive downtimes and production losses which in turn affects productivity and business revenues.
Unoptimized power supplies affected by harmonics, unbalance and low power factor will lead to higher electricity bills, overloading and rapid aging of the electrical infrastructure, resulting in increased OPEX and equipment maintenance.
CBC offers a wide portfolio of power quality solutions that maximize operational continuity and ensure a smooth and continuous power supply in different industrial applications.
Lack of a continuous power supply constitutes up to 90 percent of the poor power quality costs incurred by industries in the Asian Pecific. Voltage sags and short interruptions are the most expensive factors.
Several power quality issues impact the operation and efficiency of electrical equipment:
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Harmonics | Under/Over Voltage | Sags | Voltage Imbalance |
It is generally expected that power systems worldwide will experience an increase in harmonic distortion as the green transition progresses.
At lower voltage levels, an increase in harmonic generation is expected, caused by widespread photovoltaic (PV) generation, usage of energy storage, electric vehicle charging/discharging and increasing converter-interfaced loads at a domestic level.
Larger and more frequent voltage variations are to be expected that can lead to both undervoltages or overvoltages. This effect will be strongest in areas of the power system having low system strength.
In distribution networks, over voltage can lead to excess energy consumption, transformer core saturation and stressing of insulation, leading to premature failure.
Undervoltage can lead to reduced energy consumption, malfunctioning of high-intensity discharge lamps, reduction of torque developed by mains-connected motors as well as overcurrent with associated accelerated aging as a consequence.
The proliferation of converter-interfaced renewable generation connections, with intermittent power output, combined with a reduction in system strength through displacement of conventional plants, results in higher volatility in the system voltage at the transmission level.
Voltage dips, typically caused by system faults, transformer energization, or large motors starting, can become more frequent and severe in distribution networks.
Technologies such as photovoltaic systems at the LV level are taking place as single-phase connections, which introduces unbalances into the system.
They are most likely driven by:
The semiconductor industry has some of the most demanding applications in motion control. A combination of extreme accuracy and precision needs super-critical power protection.
The cost of production losses, poor quality, downtime and the associated impact on profit and market share can be massive for semiconductor factories that are not sufficiently protected against adverse power events.
The semiconductor industry has several manufacturing areas that require power conditioning and protection such as silicon wafer and ingot, memory chips, processors, sensors, power devices, displays, light-emitting diodes, electronics and solar photovoltaic cells.
Due to strict requirements, all of these processes depend on a continuous and clean electricity supply.
Wafer cutting is an area of particular sensitivity where voltage sags can cause breaks in the wire saws, resulting in expensive downtime and product losses.
The semiconductor industry has some of the most demanding applications in motion control. A combination of extreme accuracy and precision needs super-critical power protection.
The cost of production losses, poor quality, downtime and the associated impact on profit and market share can be massive for semiconductor factories that are not sufficiently protected against adverse power events.
The semiconductor industry has several manufacturing areas that require power conditioning and protection such as silicon wafer and ingot, memory chips, processors, sensors, power devices, displays, light-emitting diodes, electronics and solar photovoltaic cells.
Due to strict requirements, all of these processes depend on a continuous and clean electricity supply.
Wafer cutting is an area of particular sensitivity where voltage sags can cause breaks in the wire saws, resulting in expensive downtime and product losses.