Frequency conversion motor popular now, the motor industry is energy saving and efficient. Efficient motor adopt measures from planning, information and technology, such as selection of reasonable setting, rotor slot number and the parameters of the electric fan and sine winding way, drop loss, power can progress 2% & ndash; Progress 8%, average 4%. Visible power of ascension is so difficult, often need to pay huge capital value, thus the measurement demand for this kind of motor more accurate so carefully planning worth-living. How to achieve high precision evaluation of energy efficiency of the motor? If there is a high precision of motor system energy efficiency evaluation, to be satisfied with the following four conditions: one, the bandwidth of the measuring instruments it is necessary to have enough & # 8203; With the continuous development of science and technology and strengthening energy conservation ideas, now a lot of the electrical control system of increased frequency converter or driver to drive motor, to control the motor in different working conditions is a different power, prevent the phenomenon of Daniel to pull the car. As is known to all inverter is work in the form of chopper, continuously regulate high frequency PWM wave fitting to sine wave. PWM frequency in a few KHz to tens of KHz, which needs accurate measurement frequency inverter output parameters, such as measuring instruments need to be satisfied input bandwidth, generally instrument is necessary in 1 MHZ bandwidth and above. PA series power analysis instrument bandwidth of up to 5 MHZ, and bandwidth curve more straight, can completely accurate measurement of the signal. Secondly, accurately measure voltage, current value and high precision is to ensure accurate measurement power, PA series power analysis instrument with 0. The measuring accuracy of 01%, in frequency conversion motor drive system power evaluation test can capture the dynamic characteristic of the small change. Three, accurately measure the voltage and current phase PA series power analysis instrument internal selects high stable temperature compensation of 100 m synchronous clock synchronous sampling, synchronous sampling clock error less than 10 ns, the perfection of satisfactory function of high frequency conversion motor drive system power test requirements. Four, complete input and output signal synchronous measuring PA series power analysis instrument can perform up to 6 + 1 motor power input channel input channel measurements, and then complete the inverter inputThe motor input -Synchronous motor parameter measurement, further advances the accuracy of the test power. Moreover zhiyuan electronic depend on in the field of power analysis, electrical measurement, deepen understanding, and lasting gathering, planning instrument integration with the concept of system integration, has broken the traditional dynamometer function bottleneck, introduced a epoch-making meaning of MPT intelligent motor test analysis system, it can be finished with the motor features a comprehensive measurement and control properties.
