Before operating the withstand voltage tester, we should rank according to the different capacity and voltage of the tested product, first calculate the maximum working current, and adjust the economic current protector.

Specific operation of withstand voltage tester

1. Connect a power supply (the box type is a socket type power supply, and the desktop type is a terminal type power supply), and the voltage regulator is automatically controlled to reduce the voltage to the zero position, the zero position switch is closed, and the zero position indicator light is on, ( Also known as the zero balance output working status of the voltage regulator can be indicated);

2. Press the start button, the contactor will inhale, the voltage stabilizer will be powered, and the work indicator will light up;

3. After the main circuit system starts to transmit power, press the boost function button to control the motor to rotate the voltage regulator clockwise slowly and evenly, and the voltage signal output from the voltage regulator. Pay close attention to the meter readings. When it rises to the required high pressure value, press it according to the falling pressure, and press the timing button in time. At this time, the digital time relay displays the time (time unit is "S", second). When the set time is reached, the control box (console) will give an audible and visual alarm, and turn the regulator handle in the opposite direction in time until the regulator returns to zero, and then release the timing button;

4. During the development process of the boost or withstand voltage test, if various short circuits, flashovers, breakdowns and other overcurrents occur, the current passes through the relay to protect the system and the voltage regulator automatically cuts off. The tested product is unqualified. At this time, we should reset the voltage regulator to zero, cut off the working power supply, and check the tested product.

Therefore, before using it, you need to read the instructions carefully and operate in strict accordance with the instructions! !