| contributor author | B. Hanson | |
| contributor author | C. Weigand | |
| contributor author | S. Orloff | |
| date accessioned | 2017-05-08T20:48:18Z | |
| date available | 2017-05-08T20:48:18Z | |
| date copyright | May 1996 | |
| date issued | 1996 | |
| identifier other | %28asce%290733-9437%281996%29122%3A3%28179%29.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/27728 | |
| description abstract | The constant revolutions per minute (RPM) of electric motors prevents adjusting the pump performance to match variable operating conditions, and thus the pump output is usually reduced or throttled with a valve in the discharge pipe. Variable frequency drives for electric motors have the potential to adjust the pump performance to match operating conditions by reducing motor and pump RPM. Field tests at five sites showed that the pump performance at the reduced RPM could reasonably match the throttled conditions at a reduced horsepower demand. However, pumping plants using a variable frequency drive should be operated at least 500–1,000 h per year to recoup costs. | |
| publisher | American Society of Civil Engineers | |
| title | Performance of Electric Irrigation Pumping Plants Using Variable Frequency Drives | |
| type | Journal Paper | |
| journal volume | 122 | |
| journal issue | 3 | |
| journal title | Journal of Irrigation and Drainage Engineering | |
| identifier doi | 10.1061/(ASCE)0733-9437(1996)122:3(179) | |
| tree | Journal of Irrigation and Drainage Engineering:;1996:;Volume ( 122 ):;issue: 003 | |
| contenttype | Fulltext | |