What is the difference between full rated and up rated?
Once you have understood the system, you will realize that a pump that has a higher horsepower listing and a lower service factor listing is described as an up-rated motor. The original motor is called a full-rated motor. The pumps are basically the same; they simply have different horsepower and service numbers.
What is WEF and THP?
Pump testing must comply with specific test procedures and certain information such as WEF (weighted energy factor), THP (total horsepower) and HHP (hydraulic horsepower) must be reported to the DOE. Pumps, packaging and promotional materials must be labeled with WEF to describe their energy efficiency.
What does SF HP mean?
loading Motor Service Factor
Permissible horsepower loading. Motor Service Factor (SF) is the percentage of overloading the motor can handle for short periods when operating normally within the correct voltage tolerances. This means that a 10-hp motor with a 1.15 SF could provide 11.5 hp when required for short-term use.
What is an up rate pool motor?
According to NEMA, in order for an HP motor to be considered full-rate, its service factor must be equal to or higher than the listed full rate service factor. The motor is considered to be up-rate if it has a service factor that is lower than the listed full-rate service factor.
What is Sfhp pump?
47. 48. 49. C) Total Horsepower: The product of the Rated Horsepower and the Service Factor of a motor used on a Pool Pump (also known as Service Factor horsepower, SFHP) based on the maximum continuous duty motor power output rating allowable for nameplate ambient rating and motor insulation class.
What is service factor?
In simple terms, the service factor is the ratio of the gearbox rated horsepower (or torque) to the application’s required horsepower (or torque). Service factors are defined by the American Gear Manufacturers Association (AGMA), based on the type of gearbox, the expected service duty, and the type of application.
How is WEF calculated?
Efficiency = Output/Input = Bang/Buck The WEF for a single-speed pump is the same as Energy Factor, since there is only one speed at which to measure. For two-speed and variable-speed pumps, WEF is weighted at 80% of the low speed Energy Factor and 20% of high speed.
What does THP mean in pool pumps?
total horsepower
REGULATION SUMMARY: HHP is approximately 50% of the pump motor’s total horsepower (THP) rating. Most pool pumps with a motor rating of 5.0 THP or less will be required to meet the minimum energy-efficiency standards.
What does SFA mean on motor?
Service Factor Amps
Service Factor Amps, or S.F.A., represents the amount of current the motor will draw when running at the full Service Factor. In the example nameplate, the S.F.A. is eight amps at 230 volts. Continually exceeding the S.F.A. shown on the nameplate can shorten motor life.
What does SF stand for on a motor?
Motor service factor (SF) is the percentage multiplier that a motor can handle for short periods of time when operating within its normal voltage and frequency tolerance. In other words, it is a fudge factor that give extra horsepower when it’s occasionally needed.
What’s the difference between full load and half load on ups?
The full load runtime spec on a UPS refers to the amount of runtime the UPS will offer when you’re consuming 100% of the rated output of the UPS. Half load is 50% of the rated output.
What’s the difference between a differential and a full backup?
A Full Backup is a complete backup of all files on the designated hard drive. An Incremental Backup is a backup of all changed files since the last Full or Incremental backup. For example: A Differential Backup is a backup of all changed files since the last Full Backup.
How long is a ups rated to run?
A UPS is rated at a current load over time. The more current you use the less time the UPS will remain functional. While this is not a linear scale, lets say at 50% of the rated load the UPS will run for 20 minutes and at 100% of the rated load the UPS will run for 10 minutes.
What’s the difference between an incremental and a full backup?
A Full Backup is a complete backup of all files on the designated hard drive. An Incremental Backup is a backup of all changed files since the last Full or Incremental backup. For example: Friday – Full Backup.
What’s the difference between a full rated motor and an uprated motor?
The differences between a full rated motor and an uprated motor is the gray area which a lot of pool owners have questions about. In short, an uprated motor is taking a smaller horsepower and changing the rating on the service factor to create the impression that the motor has more power than it actually does.
The full load runtime spec on a UPS refers to the amount of runtime the UPS will offer when you’re consuming 100% of the rated output of the UPS. Half load is 50% of the rated output.
A UPS is rated at a current load over time. The more current you use the less time the UPS will remain functional. While this is not a linear scale, lets say at 50% of the rated load the UPS will run for 20 minutes and at 100% of the rated load the UPS will run for 10 minutes.
