The motor efficiency field test method research

This puts forward new problems to us,whether the field test of the various losses and efficiency of

motor,determine whether the motor is unqualified,in use three-phase asynchronous motor for an online "check-up",eliminate the unqualified motor.It is very important for energy saving work,the author is to solve the problem and research work.Motor field test method research The optimal load rate of the electric vehicle motor motor is equal to the best state of actual output power and the ratio of the rated power.When its value is greater than 70%,the motor efficiency and power factor are in the best running status.If you can avoid the motor light load operation for a long time,can achieve the purpose of www.dongfeng-motor.com energy saving.Motor efficiency highest state is running,select the best load factor is particularly important.Because of the unqualified The motor is more,more electricity phenomenon is very serious.Machine mining system power consumption accounts for about a third of production plant is the total power consumption,so the machine mining system is an important aspect of saving energy and reducing consumption.

In the face of pumping unit motor use present situation,the management of the oil field and power saving work encountered great difficulties.In the quality of the motor Good or bad can not only see use fixed number of year.Repaired the motor quality is good,quality is poor,and even some energy-saving

motor not energy-saving. The shengli oilfield GuDong production machine mining system at the

ac synchronous motor scene of the use efficiency of pumping unit motor test method research 1820 units,450 units of energy-saving motor,accounting for 24.73% of the total production in the motor,1370 sets of ordinary motor,accounting for 75.27% of the total production in the motor.Production plant in motor aging phenomenon is more serious,the average energy-saving motor Use fixed number of year of 3.2 a,ordinary motor average age is 4.4 a,46.2% of the motor after repair,maintenance of 3 or more times a motor proportion reaches 18.2%,the proportion is on the high side.Compared with GuDong production plant and other production plant is the motor of the same,generally have a mixture of old and new,models and more complex,aging phenomenon such as serious.