The frequency conversion power analyzer is a kind of measuring instrument that everyone often uses in industrial production. The frequency conversion power analyzer is a wide-band, high-precision power analyzer suitable for the inspection, energy efficiency evaluation and harmonic analysis of various converters such as transformers, rectifiers, inverters, frequency converters, motors and electrical products. It is an inevitable product of the rapid development of power electronics and frequency conversion technology, and an important basic instrument for the sustainable and healthy development of frequency conversion technology.

The specified voltage of the frequency conversion power analyzer is 220v and 380v respectively. The measurement object of the variable frequency power analyzer, that is, the variable frequency power, will be used when transmitting power. It includes some components, such as voltage, current, harmonics and so on. The power measured by the frequency conversion power analyzer includes a variety of voltages, currents, harmonics, etc. of frequency conversion speed regulation. It is also an indispensable tool for evaluating frequency conversion equipment.

Introduction to Variable Frequency Power Analyzers

For the convenience of expression, this part is divided into an integrated variable frequency power analyzer and a split variable frequency power analyzer according to the different forms of the transmission system.

1. It is more reasonable to use the split method, because it can move the digital output variable frequency power transmitter to the front end of the measurement, thereby shortening the analog transmission line, which can effectively reduce the loss and interference of the transmission line.

2. For the split-type variable frequency power analyzer, the digital output variable frequency power transmitter is sometimes called the digital output variable frequency power sensor, and the digital input secondary instrument is called the variable frequency power analyzer, and the transmission system is included. The three parts together are called the variable frequency power test system. However, the variable frequency power analyzer specified in this part is the sum of the above three parts.

The frequency conversion power analyzer has a certain frequency range. Generally, the rated frequency range of the instrument is determined by the manufacturer. If the range is determined, it is required that the Xie Liang error of the analyzer should not exceed a certain limit during the measurement process. Scope. The analyzer's rated auxiliary power supply voltage is measured at the power supply port during the operation of the device, and sometimes includes auxiliary resistors installed by the manufacturer, but it must be noted that the conductors connecting to the power supply must be excluded.

Technical indicators

Bandwidth: 100kHz

Maximum sampling frequency: 250kHz

Voltage measurement accuracy: 0.2%rd Amplitude: 0.75%~150%UN; Fundamental frequency: DC, 0.1Hz~400Hz

Current measurement accuracy: 0.2%rd Amplitude: 1%~200%IN; Fundamental frequency: 0.1Hz~400Hz

Power measurement accuracy: 0.5%rd Power factor: 0.2~1; Fundamental frequency: 0.1Hz~400Hz

Power measurement accuracy: 1%rd Power factor: 0.05~0.2; Fundamental frequency: 0.1Hz~400Hz

Frequency measurement accuracy: 0.02%rd 0.1Hz~400Hz

Voltage overload time: 10 minutes U < 1.5 UN

Current overload time: 3 minutes I<2IN

Isolation voltage: 2UN+1kV 50Hz, 1min

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