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Frequently Asked Questions |
1. Q: If the Circuit Master is connected to a panel with equipment having three different power factor ratings, will the ........Circuit Master try to correct the worst PF resulting in over-correcting the best? ....A: Circuit Master will enhance an average PF correction to any panel that has more than one PF source because ........the distribution network supplying different motors has an average Power Factor reading at any given point. ........Circuit Master will not over-correct or cause harm to any of the motor loads, regardless of how many are running ........at different times, provided units are properly sized to the application. Over-correcting can occur only if too large ........a unit or too many units are used on a specific application. 2. Q: If the Circuit Master is connected properly and is producing good results, what happens when the load begins to ........vary from the original load? ....A: Should a load change, the Circuit Master unit will also change somewhat with the percent of overall savings ........decreasing as total load increase. (Especially past 110%) 3. Q: Based on the components in the Circuit Master, what and how does each component perform its duties? ....A: TVS components act to remove transient voltages and filter capacitors act to improve Total Harmonic ........Disturbances, further conditioning the AC waveform. This has an effect of helping improve service life of ........equipment. The effect on motors is that (motors are moveable transformers), they are effected by the rise in ........current and frequency and generate a variance in the 60Hz waveform. The cumulative effect imposed upon ........contacts, coils, and semi-conductors by numerous disruptive surges, including harmonics, causes efficiency ........losses on the motors, which in turn will substantially increase power consumption as the motor compensates to ........meet demand. As pitting and corrosion occur, there is a rise in the operational temperature of the motor, which ........increases kilowatt usage and maintenance costs, as well as reduces the life expectancy of the motors and ........ballast. MOV (Metal Oxide Varistor), a classic and rather common approach to removing high voltage and ........switching transient voltages. 4. Q: What are the best applications for the Circuit Master and what should we stay away from? ....A: Best applications are inductive motor loads. Use smaller units on fluorescent lighting panels, the inductive load ........requirements are considerably less than those required on motor loads, even though the current may be high. 5. Q: What, if any, are the negatives to installing a Circuit Master on a residence? ....A: Circuit Master will always help residential applications. Be sure to install applicable unit(s). 6. Q: What are the side affects if the Circuit Master over-corrects power factor? ....A: If PF goes over, unity motors tend to overheat and thus can shorten service life. 7. Q: What, if any, are the benefits to correcting power factor from .94 to .99? ....A: Extends overall service life of equipment also can place demand factors within more favorable rate limits, for ........monthly billing. 8. Q: What effect do Circuit Master units have if all the motors have a VFD or a VSD connected to them? ....A: When the Circuit Master unit is installed upstream of the VFD or VSD, it does not have any adverse effect ........because Circuit Master units do not change the frequency or voltage at the output. Circuit Master units only ........improve the quality of the electricity being supplied to the VFD or VSD. 9. Q: Why are the "hot leads" different colors if it does not make any difference which phase they are connected to? ........Other brands use a specific color to connect to any "high leg". ....A: It is not relevant which order three phase leads are connected, yet to follow NEC Color Code Schemes, brown, ........orange, yellow, are used as practical dictates. High leg systems are not affected, because internal component ........values exceed that of the "high leg" voltage settings. Each unit is approved to hook up to supply sources @ 600 ........VAC. |