1. During the test, operators should operate at a safe distance (less than 20KV per meter in air), and the power frequency withstand voltage test bench must be reliably grounded with a grounding resistance less than 0.1Ω. 2. Before use, test the insulation resistance, which should be greater than 2MΩ. 3. Before use, check whether the contacts of each electrical component are loose, whether the contact is good, and whether each protection system can work normally. 4. Before use, wipe the insulating support rod, electrodes, electrode rod, water tank and other parts with alcohol. 5. After the test, drain the water and wipe all parts dry with cotton cloth. If not used for a long time, store the water tank, electrode rod, and insulating support rod in a dry and ventilated place.
1. Voltage, current, and time data are displayed on the same LCD screen with backlight, providing clear and intuitive readings. 2. Full Chinese interface, simple and clear operation, wide applicability. 3. Touch-type panel button operation; all functions can be set via buttons, improving product safety and reliability. 4. Combines hardware and software anti-interference technologies, ensuring stable performance and strong anti-interference capability. 5. This test device can test the leakage current of 6 channels simultaneously.
1. When testing with water inside and outside the insulating boots (gloves), remove the partition plate and sponge. Fill the inside and outside of the insulating boots (gloves) with water to the same height, leaving a 90mm portion above the water surface, and ensure that the part above the water is dry and clean. Then place the high-voltage electrode inside the insulating boots (gloves) and clamp them properly. 2. When testing with steel balls inside the insulating boots, add water to the water tank up to the partition plate to fully soak the sponge. Place a metal piece matching the boot size into the boot, put the high-voltage electrode inside the boot so that it contacts the metal piece, and then cover the metal piece with metal balls with a diameter not greater than 4mm, to a height of not less than 15mm. 3, First, ensure the water surface is at least 15cm above the six electrodes, then connect the high voltage from the water tank to one end of the insulator, and connect the other end to any one of the water tank electrodes (1~6). At this time, high voltage is present around the water tank. When connecting the electrode signal wires, keep them as far away from the water tank as possible. Other wiring methods are the same as for insulating boots (gloves). 4, Before the test, first fix and install the high-voltage wire marked (High Voltage Danger) to the connection hole at one end of the water tank before conducting the test. 5, Set up the site according to relevant regulations, connect the equipment wires, and in areas where conditions permit, have a dedicated safety officer present for guidance. 6, Close the power switch to enter the measurement state; the system self-checks for a few seconds. 7, Press the test button, the working indicator light turns on, the voltage regulator is energized, and the voltage column on the display should show the high voltage value (kV), while also displaying the leakage current values (mA) of the 6 channels. 8, During the voltage increase process, the alarm buzzer will sound, indicating that voltage is being increased. Closely monitor the voltage and current values. When the voltage reaches the set value, the voltage increase stops, and automatic timing begins. After the time is up, the voltage automatically decreases. (See Figure 1) 9, Pay attention to the milliammeter; if the insulation performance of any insulating boot (glove) degrades, the corresponding milliammeter will indicate it. During the test, if any channel's current indication exceeds the specified range for the test object, the system will automatically cut off the high-voltage power supply. Turn off the power switch, find the cause, and then conduct the test again. 10, During voltage increase or withstand voltage testing, if overcurrent such as short circuit, flashover, or breakdown occurs, the current relay will operate (and the unqualified channel will be displayed in reverse, with the leakage current value maintained in front of the corresponding channel, as shown in Figure 2), causing the voltage regulator to automatically power off, indicating that the test object is unqualified. At this time, the voltage regulator will automatically return to zero and cut off the power supply for the next operation. 11. After each test, turn off the power switch, then turn it on again to conduct the next test.
