Parameters of the special tester for economic operation of electric motor

This type of detector has the advantages of large motor parameter memory capacity, high measurement accuracy, simple operation, complete functions, and multiple uses. It solves the problem of negative power test of motors and fills the technical gap of similar domestic instruments. It is widely used in railways, oil fields, power supply, energy monitoring, power stations, fans and other engineering and technical departments and has won high praise. It is indeed an ideal intelligent power test tool.

　　●Measure all conventional electrical parameters of power frequency lines or electrical equipment and motor operating parameters

　　●Dual CPU high-speed sampling operation, uninterrupted and accurate recording of measurement data

　　●128×128 large screen LCD display with backlight, graphic and Chinese prompt display

　　●Micro Chinese printer, Chinese prompts and prints six working condition operation curves

　　●Measurement data display items and printing items can be selected by yourself

　　● Make three-phase vector diagram to show the phase relationship between current and voltage

　　●Light touch button, buzzer response when key operation

　　●1140V high voltage equipment can be measured without the need for an external PT device (optional function)

　　● Laptop serial communication, comprehensive storage and recording of test data (optional function)

　　●Full-process dynamic measurement and power saving analysis can be performed on power-frequency line electrical equipment such as oil field pumping units, coal mine conveyors, and fans.

　　Input the motor no-load parameters and rated parameters (this parameter detector has stored more than 6,900 parameters in 180 categories, which users can select and call), and users of special motors can input them by themselves. The output power, efficiency, and load rate of the motor shaft end can be detected (in accordance with the national standard GB12497-95 "Economic Operation of Three-Phase Asynchronous Motors"). According to user requirements, a photoelectric digital sampler is added to measure the motor speed, which is used for fan efficiency detection in the fan industry during production and manufacturing.

　　The three-phase vector diagram function is used to facilitate users to judge whether the wiring of instruments and meters , whether the user line wiring is correct, and whether the line working status is normal. It has the function of judging wrong wiring.

　　Combined with computer serial communication, the instantaneous data of oilfield pumping unit electricity consumption can be fully recorded and stored. With the help of special computer software, the data can be analyzed and the change curves of voltage, current, power (able to distinguish between positive and negative power) and other data during the operation of the pumping unit can be drawn to reasonably adjust the balance block of the pumping unit to achieve the best energy-saving effect.

　　　　measurement accuracy

　　Current and voltage: 0.5 level; power: 1.0 level;

　　The absolute value error of power factor is less than 0.008;

　　Frequency error <0.1Hz.

　　Basic test items and scope

　　1. AC voltage 50～750V

　　2. AC current 0.5～500A

　　3. Apparent power 0.025～750kVA

　　4. Active power 0～750kW

　　5. Reactive power 0～750kVR

　　6. Power factor 0～1.0

　　7. Load rate 0～120

　　8. Efficiency 0～100%

　　9. Active power 0～99999.9kW·h

　　10. Reactive energy 0～99999.9kVAR·h

　　11. Grid frequency 45～55Hz

　　12. Motor speed 120～3500r/min (optional function)

　　13. Input power 0～750kW

　　14. Output power 0～750kW

　　15. Plot current, voltage, and active power

　　Six curves including power factor, load rate, efficiency, etc.

　　16. Calculate 9 data of motor economic operation

　　17. Calculate 7 parameters of motor operating characteristics

　　18.1~50th voltage and current harmonic analysis

　　19. Automatic calculation of reactive power compensation on site

　　20. Make a vector diagram to display the phase values ​​and phase differences

　　21. The measurement data provides instantaneous values ​​and multiple average values