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High current generator attention

time:2022/1/30   source:华天电力  reading:606 time

Notes on using high current generator:

 

1. Working power: 220V/380V ±10% 50HZ


2. Ambient temperature: -10℃—40℃

 

3. There should be no gas vapor that seriously affects the insulation of the transformer, chemical deposition of dust, dirt and other explosive media around the product. After this series of products is pressed into the working power supply, the output voltage of the voltage regulator can be adjusted to obtain the large current required for the test.


4. Connect the working circuit according to the electrical schematic diagram. Transformer enclosure, console, etc. must be well grounded.


Primary Current Injection Test Set.png

      

5. Turn on the power, and the green indicator light on the console is on. Press the start button, the red indicator light is on, and the upflow device is waiting for upflow.

     

6. Rotate the voltage regulator evenly clockwise, pay attention to the output current indication on the console until the required high current, in order to ensure the test accuracy, a standard ammeter can be connected in series on the instrument terminal.


7. During the test, once an abnormal phenomenon is found, the power supply should be cut off immediately, and the test should be carried out after finding out the reason.


8. After the test is completed, the voltage regulator must be reset to zero, the power supply must be cut off by pressing the stop button, and the working power supply can be cut off before the test wiring can be removed to ensure safety.

 

9. This equipment is designed for short-term work, so it is not allowed to work under the rated capacity for a long time, especially not to exceed the rated current to prevent overheating. The time is as follows:

 

10. Newly installed and long-term unused transformers, use a 1500 megohmmeter to measure the insulation resistance between the coils and the coil to the ground before operation, and the resistance value can only be used when the resistance value is not less than 0.5 megohms.

 

11. The up-current transformer and console must be grounded reliably during use to ensure safety.

 

12. The flow should be raised slowly and evenly during use, and excessive vibration should be avoided during handling.

 

13. The contact surface of the voltage regulator and the brush should be kept clean, and wipe it clean with 90% alcohol dipped in cotton yarn as appropriate.

 

14. This equipment should be kept clean, ventilated, dry and indoors.


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