The PowerKure system solutions corrects up to twelve electrical power problems found in industrial, commercial and institutional facilities resulting in significant power consumption reduction and energy cost savings. Correcting these problems also protects valuable equipment from potential damage and reduces downtime.
Most industrial electrical loads are designed for 3 phases of current at either 480 volts or 600 volts. A 600 volt motor is optimized when it receives 3 phases of current at 600 volts. Often, electrical systems can become destabilized and each phase will deliver current at a different voltage such as 580, 600 and 620 volts respectively. Even minor imbalances can generate heat and electrical losses.
Minor imbalances are generally left uncorrected and major imbalances are fixed by expensive projects such as rewiring equipment and balancing loads between phases, replacing motors and adding transformers.
PowerKure can stabilize voltage across all three phases using a combination of LRC tank circuits and phase shifting reactors. In the above example, the voltage in all three phases will be balanced to 600 volts +/- .5% to 1%. Balancing the voltage across all three phases reduces heat and electrical losses.
Voltage may fluctuate due to large inrush currents caused by motors that draw large currents during startup
Minor fluctuations are generally left uncorrected. If significant fluctuations occur, additional capacitor banks can be added and transformers tapped to higher voltages. However, traditional capacitor banks may actually magnify the fluctuations, increase resonance harmonics and destabilize voltage. Additionally, UPS boxes can be installed to protect critical equipment from low voltage sags.
PowerKure can improve voltage within each phase, decrease fluctuations and allow motors to run more efficiently. Additionally, PowerKureTM uses LRC tank circuits and zigzag reactors to capture and recycle losses as needed.
Unbalanced loads can cause phase currents, thus creating negative voltage sequences and circulating currents. This can result in higher equipment maintenance costs and failures. Additionally, imbalanced loads may generate higher demand charges from the utility if the utility is billing demand on the highest phase.
Minor fluctuations are generally left uncorrected. Significant unbalanced loads can be rewired to equalize the load between phases.
PowerKure balances the load over three phases and mitigates phase currents, thus reducing negative voltage sequences and circulating currents. This minimizes equipment maintenance costs and failures. Current balancing can often reduce demand charges from the utility.
Voltage may also fluctuate within a single phase. Depending on the loads, the phase can be measured within a range with a maximum, a minimum and an average voltage. Motors and equipment are designed to be most efficient at a set voltage and any minor fluctuations, up or down, will decrease the motor's efficiency and generate heat and electrical losses. Significant voltage fluctuations can cause equipment to shut down or fail.
Minor fluctuations are generally left uncorrected. If significant fluctuations occur, additional capacitor banks can be added and transformers tapped to higher voltages. However, traditional capacitor banks may actually magnify the fluctuations, increase resonance harmonics and destabilize voltage. Additionally, UPS boxes can be installed to protect critical equipment from low voltage sags.
PowerKureTM can improve voltage within each phase, decrease fluctuations and allow motors to run more efficiently. Additionally, PowerKureTM uses LRC tank circuits and zigzag reactors to capture and recycle losses as needed.
Voltage may also fluctuate within a single phase. Depending on the loads, the phase can be measured within a range with a maximum, a minimum and an average voltage. Motors and equipment are designed to be most efficient at a set voltage and any minor fluctuations, up or down, will decrease the motor's efficiency and generate heat and electrical losses. Significant voltage fluctuations can cause equipment to shut down or fail.
Minor fluctuations are generally left uncorrected. If significant fluctuations occur, additional capacitor banks can be added and transformers tapped to higher voltages. However, traditional capacitor banks may actually magnify the fluctuations, increase resonance harmonics and destabilize voltage. Additionally, UPS boxes can be installed to protect critical equipment from low voltage sags.
PowerKureTM can improve voltage within each phase, decrease fluctuations and allow motors to run more efficiently. Additionally, PowerKureTM uses LRC tank circuits and zigzag reactors to capture and recycle losses as needed.
Voltage may also fluctuate due to swells and sags. Motors and equipment are designed to be most efficient at a set voltage and any minor fluctuations, up or down, will decrease the motor's efficiency, generate heat and electrical losses. Significant voltage fluctuations can cause equipment to shut down or fail.
Minor fluctuations are generally left uncorrected. If significant fluctuations occur, additional capacitor banks can be added and transformers tapped to higher voltages. However, traditional capacitor banks may actually magnify the fluctuations, increase resonance harmonics and destabilize voltage. Additionally, UPS boxes can be installed to protect critical equipment from low voltage sags.
PowerKureTM can improve voltage within each phase, decrease fluctuations and allow motors to run more efficiently. Additionally, PowerKureTM uses LRC tank circuits and zigzag reactors to capture and recycle losses as needed.
Electrical surges, transients and spikes, can burn out motors, harm computers and lighting and significantly damage plant equipment.
Traditional surge protectors chop voltage spikes at a preset level and send them to ground.
PowerKureTM captures minor surges and recycles them to usable energy. Extreme surges are sent to ground.
Electrical impulses and spikes can burn out motors, harm computers and lighting and significantly damage plant equipment.
Traditional surge protectors chop voltage spikes at a preset level and send them to ground.
PowerKureTM captures minor surges and recycles them to usable energy. Extreme impulses and spikes are sent to ground.
Most AC electrical equipment in North America is designed for AC electricity at 60 Hz or alternating cycles per second. Any electrical current above 60Hz is called a harmonic. Harmonics are not only wasted power but can also damage equipment.
Traditional methods of correcting harmonics include capturing the harmonic and sending it to ground or using power to generate the inverse harmonic to cancel out the original harmonic.
PowerKureTM captures broadband harmonics or electrical frequencies above 60 Hz and then recycles the wasted electricity back to 60 Hz. This reduces electrical losses and improves equipment longevity.
In AC systems with inductive loads, i.e. motors, the current often lags the voltage. This results in low power factor. The voltage wave peaks before the current wave. If both waves are not peaking at the same time there is wasted energy. Additionally, utilities apply a power factor penalty to electric bills if the power factor drops below a predetermined efficiency level.
The traditional method to improve the power factor is to add capacitor banks. However, capacitor banks can increase resonance, surges, transients, harmonics, and increase KW and KWH as a result of increased motor torque and inrush currents.
PowerKureTM can optimize the power factor between .95 and .99 without traditional capacitor banks and their associated side effects. PowerKureTM will monitor the power factor and add capacitance, as needed, to maintain it at a predetermined level.
A brownout is a temporary voltage decrease from the supply. Brownouts can damage equipment and can also shut down operations.
PowerKureTM increases and maintains voltage during temporary brownouts, reducing equipment shutdowns. This is an optional feature that can be incorporated into the PowerKureTM system.
A momentary supply interruption is a temporary loss of voltage. These types of failures can shut down entire facilities and cause production malfunctions. They are generally caused by the utility company switching loads, lines and source supplies. These types of switching events generally cause a complete loss of supply for several cycles. Momentary interruptions are generally less then 3 seconds. Temporary interruptions are generally between 3 seconds and one minute. Long term interruptions generally last longer than 1 minute.
PowerKureTM supplies continuous voltage during momentary supply interruptions of short durations, generally 1 second (60 cycles) or less. This is an optional feature that can be incorporated into the PowerKureTM system.
Eliminating power sags, brownouts, and surges protects valuable equipment and reduces downtime.