Test equipment configuration:

1. Equipment configuration:

(1) Simple configuration (practical type): electrical parameters (single-phase, three-phase, DC), dynamometer controller, dynamometer, fixture

(2) Complete configuration (beautiful type): electrical parameters (single-phase, three-phase, DC), dynamometer controller, dynamometer, fixture, three-dimensional workbench, working platform, AC variable frequency power supply/DC stabilized power supply, Computer, monitor, control console

2. Dynamometer selection and applicable occasions

Hysteresis Dynamometer

(1) The hysteresis dynamometer is composed of a stator with toothed poles, a hollow-core hysteresis cup rotor, an excitation line diagram, a bracket, and a bottom plate. When the internal coil of the hysteresis dynamometer passes current, magnetic lines of force are generated and a magnetic circuit is formed. Torque, changing the excitation current can change the load torque.

(2) It is suitable for testing small and medium torque motors with high speed, such as asynchronous motors, low-power DC motors, series motors and power tool industries.

Magnetic particle dynamometer

(1) The magnetic particle dynamometer is composed of a stator, a solid rotor, an excitation coil, a magnetic powder medium, a bracket, a base plate, etc. When the internal coil of the magnetic particle dynamometer passes current, a magnetic field is generated, so that the internal magnetic powder is arranged in a magnetic chain according to the magnetic line of force. The pulling force generated by the magnetic powder chain becomes the resistance to prevent the rotor from rotating, and this force is the load moment. The load torque can be changed by changing the excitation current.

(2) Suitable for occasions with high torque and low speed. Such as starter motor constant torque on-load starter, asynchronous motor, DC geared motor and constant tension control used in papermaking, textile and other industries.

Applications:

Single-phase asynchronous motors (washing machine motors, range hood motors, fan motors, air conditioner motors, compressor motors), shaded pole motors, DC motors, series pole motors, power tools, three-phase motors, synchronous motors, speed control motors, steppers Motor, wiper motor, window motor, car heater motor, motorcycle starter motor, etc.

Main performance:

1. The test data is displayed digitally and can be sent to the computer for sampling, drawing and printing;

2. Using high-precision load sensor; good stability and long service life;

3. The whole machine has high sensitivity, load torque stability and test repeatability;

4. Only adjusting the excitation current can control the size of the load

5. The software operation is simple and easy to learn, and can realize manual test, automatic test, fixed-point/endurance (FFU)/blocked rotor test.

6. The power tester has multiple ranges (automatic switching) to meet the test of high-power motors and small-power motors

7. The three-dimensional workbench can easily install the motor, and realize the adjustment of up, down, left, right, front and rear large strokes.

System function:

1. The start and stop operation of the motor can be controlled on the computer;

2. The system has manual and automatic test functions (this function can be operated without a computer). The whole process can be realized on the display controller on the control cabinet; the data can be locked for manual recording;

3. The system has an automatic test function: that is, the load is actively loaded according to the setting, and the characteristic curve of the motor from no load to locked rotor (or set value) is scanned;

4. The system has a fixed-point test function: that is, after the motor runs, the load is actively adjusted to the set value and runs stably at the set value;

5. Test results: Motor test data is displayed in the form of reports or curves, which can be automatically saved, which is convenient for opening the query curve next time, and the curve coordinate parameters (abscissa and ordinate) can be modified;

7. Rated torque test accuracy: ±0.5%; speed accuracy ±0.2%;

8. Range: 0.01Nm-10000Nm