Generator Centering Instrument

Features:

The system is specifically designed forWind Turbine PerformanceThe system consists of a variable frequency inverter, variable frequency motor, adjustable load, pneumatic fixture, platform, and belt pulley. Achieves100V/220VTransformation, Loading/Unloading, Automatic Clamping/Unloading conversion for rapid testing of wind turbine stator performance.

One, bench performance meets:GB/T10760.1-1989"Technical Conditions for Small Wind Turbine Generators"

Section II: Test Projects and Contents

1Measure the resistance of the winding under actual cold condition.2Measure the insulation resistance between the winding and the housing.

3Stator dielectric strength testing; test voltage value:1200V Date:1Min

4Determination of the Starting Torque of the Generator (using a weight): Under no-load conditions, the test points should be no fewer than one revolution within the generator's rotation.3Point

5In no-load condition, adjust the generator to65%At rated speed, the three-phase AC voltage was measured using a digital voltmeter.Uab 、Ubc 、UacDC voltage after rectificationUdc；

6Voltage Regulation Rate Test: At no load, the generator is set to the rated speed, and the no-load three-phase line voltage and rectified voltage values are recorded; under load, the three-phase line voltage values and the rectified DC voltage are recorded.

7Determining Generator Load Characteristic Curve: Testing the generator under load65%，80%，100.%，125%At rated speed, the generator's output power and measured efficiency were determined using the direct load method (resistance load). A relationship curve was plotted with speed as the horizontal axis and efficiency and output power as the vertical axes.

8Efficiency Measurement: Utilizing the direct method, measure the generator's operation under rated voltage and power. After the temperature reaches the basic temperature, input power, DC output power, current, thermal steady-state resistance are measured, including the losses from rectification and connecting lines.

9Overload Test: The generator should withstand high operating speeds1.5Multiple-rated load, spanning5Min;

10Warming Rise Test11Bearings Temperature Testing12Over-speed Test: The generator withstands under no-load conditions, ...2Multiple rated speed, spanning2Min;

13Short-circuit Mechanical Strength Test: The generator is tested under no-load conditions at the rated speed, with a three-phase short-circuit on the AC side, for a duration of3S；

III. Test Parameters:                                        

1Input torque, speed, input power2Alternating current three-phase voltage, current, and power of the generator

3Direct current output voltage, current, power, and efficiency

4Direct Current Resistance, Temperature, and Temperature Rise