Power Factor Correction
In an electric power system, a load with a low power factor draws more current than a load with a high power factor for the same amount of useful power transferred. The higher currents increase the energy lost in the distribution system, and require larger wires and other equipment. Because of the costs of larger equipment and wasted energy, electrical utilities will usually charge a higher cost to industrial or commercial customers where there is a low power factor.
The power factor of an AC electrical power system is a dimensionless number between 0 and 1. →
Carbon footprint is defined as the total sets of greenhouse gas emissions caused by an organization, event, product or person. →
A power factor correction business case articulates a clear path to an attractive return on investment. →
There are a diversity of methods that the various utility companies across North America employ to penalize their customers. →
- Is a commercial or industrial location.
- Is an older building that has less efficient machines.
- Has a large number of AC motors (found on pumps, conveyors, HVAC, refrigeration, etc.) that are continuously running.
- Ideally, location open close to 24 hours a day, 7 days a week.
- Has power factor, kVAR or KVA charges on their electric bill.
- Is not signed up for a contract/fixed rate plan with their electric company.
- Measured savings guarantee.
- Five-year warranty on capacitor cells.
- Designed for heavy-duty applications.
- Twenty-year life design.
- Indoor/outdoor service.
- Wall (up to 180 kvar) and floor-mounted units available.
- Internally fused through the use of an overpressure disconnector.
- Quick lead-times.
- Slim profile allows reduced footprint, conserving valuable floor space.
- New capacitor configuration leads to cooler operating conditions and extended capacitor life.
- UL and CSA listed.
- Capacitor Application Issues
Capacitors provide well-known benefits to electric power systems. These benefits include power factor correction, voltage support, release of system capacity, and reduced system losses. As with any piece of electrical equipment, there are a number of application issues that engineers need to be aware of.
A comprehensive course on power factor including the disadvantages of low power factor and the benefits of corrective applications depending on utility and geographic area.