What is the operating procedure of the pressure control box?

1. Set up the site according to the related procedures and connect the equipment. If there is a qualified area, there should be a person in charge of safety who is in charge of guidance.

2. Before operation, adjust the current relay (KA) according to the capacity and voltage level of the tested product.

3. Close the power switch, press the power button to pull in the contactor, the power supply signal of the voltage regulator is off, and the power signal light is on. At this time, the boost test can be performed.

4. Slowly turn the regulator handle clockwise (motorized console press the point up button) and keep a close watch on the voltmeter (appropriately 3KV per second should be appropriate) when boosted to the specified pressure resistance of the test item When the value is down, press the time button and watch the condition of the sample.

5. When the rated withstand voltage time of the test object is reached, an alarm (ring) will sound in the station (box) to indicate that the tested product is qualified for pressure. At this time, the pressure regulator handle shall be rotated counterclockwise (electric control Press the point down button to zero the regulator. And press the stop button to turn off the power.

6. In the process of boosting or withstanding voltage test, if overvoltage occurs, turn the regulator knob counterclockwise (Press the down button on the electric console) to return the voltage to the specified value.

7. If the ammeter current exceeds the specified range of the test object during the test, the boost should be immediately stopped to find the relevant cause for retesting.

8. In the process of step-up or withstanding voltage test, if overcurrent, such as short-circuit, flashover or breakdown occurs, the current relay will act to automatically power off the voltage regulator to indicate that the test object is unqualified. At this point the regulator should be reset to zero and the timer button reset. For the next operation.