Working Principle
Connect to a 0~220V power supply, adjust the power frequency withstand voltage test bench. According to the electromagnetic induction principle of the test transformer, the transformer generates a 0~30KV power frequency high voltage to each electrode, so that the insulating boots (gloves) obtain the specified test voltage. According to the insulating boots (gloves) test regulations, read and record the test parameters.
Main Features
◆ Fast test speed, improving work efficiency;
◆ Direct reading of withstand voltage and high-voltage leakage current, automatic identification of unqualified test products, high intelligence;
◆ Can test 3 pairs of insulating boots (gloves) simultaneously, and read the leakage current of each, accurately determining unqualified insulating boots (gloves);
◆ The bottom of the structure is equipped with casters for easy movement.
Test Steps:
1. Add two-thirds of water to the water tank and fix it on the insulating platform.
2. Place the insulating boots and insulating gloves filled with water into the water tank. The insulating gloves are clamped with the insulating clip on the probe. The upper openings of the insulating boots and gloves must not be wetted, keeping the upper openings dry.
3. Adjust the tightening screws on the high-voltage tube, insert the probe into the water inside the insulating boots and gloves, and tighten the screws to fix the probe.
4. Ground the grounding terminal of the water tank box, connect the socket of the water tank box to the output socket of the control box, and turn each milliammeter switch on the water tank box to the "Off" position.
5. Connect the power socket of the control box to a 220V power supply and ground the grounding terminal.
6. Set the test time and overcurrent protection value.
7. Before turning on the power, return the voltage regulator to zero, close the knife switch, and the disconnect button light will be on. If an alarm is needed, press the alarm switch, and the alarm will emit an audible and visual alarm. Press the start button, the start button light will be on, and the alarm stops, indicating that the power is on and waiting for voltage increase.
8. Rotate the voltage regulator handle clockwise at a constant speed to increase the voltage, and closely monitor the control box instruments and the milliammeters on the water tank box.
9. If there is an abnormality in the milliammeter of the water tank box, turn the milliammeter switch corresponding to the abnormal milliammeter to the "On" position to protect the milliammeter from overcurrent damage.
10. When the required voltage is reached, turn on the time relay switch, and the time relay starts timing.
11. When the time relay reaches the set time, the alarm sounds again, reminding that the withstand voltage time is up.
12. Rotate the voltage regulator handle counterclockwise to reduce the voltage, then turn off the time relay switch and press the disconnect button, pull down the knife switch, and the test ends.
13. Unless the test allows, never suddenly cut off the power.
14. If the test product is short-circuited or breaks down during the test, the overcurrent setting device will act to cut off the high-voltage output.
