Pre-Test Inspection and Problem Prevention During Testing of High-Current Generator:
1. Connect the working circuit according to the electrical schematic diagram. The transformer casing and the operation console must be properly grounded.
2. When the power is turned on, the green indicator light on the operation console will illuminate. Press the start button, and the red indicator light will illuminate. At this time, the current generator is ready to generate current.
3. Rotate the voltage regulator evenly and clockwise, and pay attention to the output current indication on the operation console until the required high current is reached. To ensure testing accuracy, a standard ammeter can be connected in series at the instrument terminals.
4. During the test, if any abnormal phenomenon is found, immediately cut off the power supply, identify the cause, and then proceed with the test.
5. After the test, the voltage regulator must be returned to zero, press the stop button to cut off the power supply, and then disconnect the working power before removing the test wiring to ensure safety.
6. The high-current generator is designed for short-term operation, so it is not allowed to work under rated capacity for a long time. In particular, it is not allowed to operate above the rated current to prevent overheating.
For newly installed transformers or those that have been unused for a long time, measure the insulation resistance between coils and between coils and ground with a 1500 megohmmeter before operation. Only when the resistance value is not lower than 0.5 megohms can it be used.
7. During use, the current generator transformer and the operation console must be reliably grounded to ensure safety.
8. When in use, the current should be increased slowly and evenly. Avoid excessive vibration during transportation.
9. The contact surface between the voltage regulator and the brush should be kept clean. If necessary, wipe it clean with cotton yarn dipped in 90% alcohol.
