How to use the automobile generator test bed?

No-load test of 1 silicon rectifier generator

(1) Fix the silicon rectifier generator on the gantry fixture 1 of the general test-bed for automobile electrical appliances, adjust the lifting fixture to make the generator concentric with the main shaft of the speed-regulating motor, select the appropriate hexagonal sleeve and rubber joint to connect the generator with the speed-regulating motor, turn the motor by hand, and observe whether the motor and the generator are concentric.

(2) Connect the circuit as shown in Figure 5- 1. Connect 39 to armature field connector with attachment F4. Connect sockets 40, 4 1 on the test bench with attachment F5. Turn the speed-regulating motor changeover switch 27 to the low speed position, at which time the speed-regulating motor indicator light 2 1 is on, and correspondingly turn the tachometer range control switch 65 to the low speed position. Turn the motor speed control handwheel clockwise to move the arrow in the inspection hole to the right, and observe the motor speed indicated by the tachometer 13. When the rotational speed rises to 700 ~ 800 rpm, pull the accessory F5 out of the sockets 35 and 37. At this time, the generator turns into self-excited no-load state, and the motor speed will decrease slightly. (3) Turn the speed regulating handwheel clockwise to make the speed rise slowly, and observe the voltmeter 12 at the same time. When the voltage reaches the rated value of I4V, stop the speed increase, record the speed indicated by the tachometer 13, and fill in the training record (the normal value is not higher than 1000r/min).

Main features and functions

1, which can measure the steady-state three-phase voltage, current, active power, frequency, running time and other basic functions of the generator. (Reactive power, apparent power and power factor are reserved functions).

2. It has the function of harmonic analysis, which can simultaneously analyze the 2nd to 50th harmonic content and total harmonic content of voltage and current; Energy accumulation function.

3. Transient test function, which can automatically test the maximum and minimum values of voltage, current, frequency and recovery time when the load suddenly changes.

4. It has powerful voltage recording function and photoelectric isolation RS485/RS232 serial communication function, which has powerful serial function.

5. Not only all steady-state parameters can be measured, but also sudden loading and unloading, voltage, current, frequency curve, voltage-current harmonic curve and harmonic content can be measured.

6. With the cooperation of the upper computer, all electrical parameters of the generator can be automatically measured. Automatically generate various charts, curves and test reports. Standardized operation and strong authority. The data is rich in content and the report has strong applicability, which can be signed and changed according to the needs of users.

7, the total load control function, can complete the sudden load, sudden discharge function (water load without this function).

8. Remote control function, which can realize manual control of loading and unloading through the remote control.

9. It has the function of water load data acquisition, and the terminals of current transformer are reserved.

10, the sudden loading and unloading function is automatically controlled by computer, and the power supply is set on the panel or controller for manual control.

1 1 has the functions of temperature detection protection and fan fault detection protection.

12. Optimize the input mode of segmented power supply and make it easy to set up (10kW~ ~ 3000kW max).

13, which realizes intelligent control and can automatically test various parameters of the generator set, including.