What does the generator AC withstand voltage test and DC withstand voltage test examine?

1. AC withstand voltage testing is to identify the insulation resistance of electrical equipment.

Since the AC withstand voltage test voltage is generally higher than the operating voltage, the equipment has a greater safety margin after passing the test. Therefore, AC withstand voltage testing is an important way to ensure safe operation. electrical equipment.

2. DC withstand voltage testing is to examine the maximum peak voltage that the equipment can withstand during high voltage testing, to determine the operating range of the equipment and select the range of the equipment.

Detailed information:

DC withstand voltage test operation process:

< p>1. When performing a DC withstand voltage test on electrical equipment, one person should connect the wires and anotherno one should check. After confirming that the wiring is correct, the test can be performed; . If the microammeter used is high voltage when wiring, there must be good shielding, use shielded wires for high voltage wires, and use shielding covers for test leads

3. device, a filter capacitor should be added to the test object with a small capacitance;

4. In the half-wave rectifier device, it should be noted that the maximum voltage of the rectifier should not exceed half of the rated reverse peak voltage;

5. When using silicon tubes for voltage doubler rectification, attention should be paid to the polarity of the silicon tube;

6. -The voltage measurement must be equipped with a protection device, and the capacitor used for protection must be well insulated and must not leak;

7. Perform a voltage test ofDC resistance of the cable. A protective resistor must be connected. to the conductive circuit. After the test is completed, the resistance should be discharged if necessary, the nearby equipment should also be discharged or short-circuited in advance;

8. , a high voltage measurement must be used;

9. For equipment that can be carried out in separate phases, it must be carried out in separate phases in order to compare and judge the test results of each phase.

Baidu Encyclopedia-AC Withstand Voltage Test

Baidu Encyclopedia-DC Withstand Voltage Test