Product Details

Digital DC High Voltage Generator



1. High precision and accurate measurement. The voltage and current meters are both digital displays, with a voltage resolution of 0.1kV and a current resolution of 1uA. The voltage meter on the control box directly displays the voltage value applied to the load test object, eliminating the need for an external voltage divider and simplifying wiring. The instrument has the ability to measure leakage current at both high and low voltage ends. The high voltage end uses a circular shielded digital meter display, which is resistant to discharge impact and has good anti-interference performance, making it suitable for on-site use.

2. Added a high-precision 75% VDC-1mA function, bringing great convenience to zinc oxide arrester measurements. With a simple press, no calculation is needed. The instrument control box has a 75% voltage function key. During arrester tests, when the current rises to 1000uA, press the 0.75UDC--1mA button, and the values displayed on the voltage and current meters will be the 75% data. After completion, immediately return the voltage regulator potentiometer to zero, and promptly press the green button to cut off the high voltage and turn off the power switch. Then proceed with other tests.

3. Adopting advanced technology and manufacturing processes, it is the first to apply the latest PWM medium-frequency pulse width modulation technology and pulse train logic array modulation, using high-power IGBT devices and large voltage feedback, resulting in higher stability of the output high voltage and smaller ripple coefficient.

4. Negative polarity output, zero start, continuously adjustable, with various protection functions such as overvoltage, overcurrent, return to zero, grounding protection, and unique disconnection protection. The automatic protection circuit has strong functions and is complete and reliable, ensuring safe operation. All technical indicators are superior to industry standards.

5. Convenient overvoltage setting function, using digital dial switches, which can display the set voltage value intuitively, making operation more flexible, with the display unit in kV.

On the side of the high-voltage tower chassis, there is a seven-pin socket for connecting the control box cable, and on the side of the chassis, there is a copper terminal for grounding connection.

The accompanying high-voltage shielded ammeter is a digital microammeter. The jack on the top of the meter is for connecting the test object's wire, and it also serves as the power switch. When not in use, please unplug the plug to automatically turn off the power. When changing the battery, open the screws on the top cover, and after replacement, close the cover and tighten the screws. For the flat round meter, open the back cover to change the battery.

1. Connect the grounding terminal on the control box panel to the grounding terminal on the high-voltage tower with a grounding wire, and securely connect it to the ground wire of the site or laboratory. To ensure the safety of you and the equipment, please repeatedly check the grounding wire to ensure all parts are well grounded.

Use the provided seven-core cable to connect the control box and the high-voltage tower. Both ends of the cable have the same quick aviation plug. Note that the notch on the side of the plug should align with the thick convex part inside the socket, insert, and tighten clockwise. (Either end of the cable can be used to connect the control box or the high-voltage tower.) Connect the power cord; the power supply is single-phase AC 220V, 50Hz.

2. Turn on the power switch. At this time, the power switch light (green) and the panel meter will light up. The high-voltage indicator light (green) will also light up. If the high-voltage buzzer is in the on position, it will sound to remind the operator that high voltage is being applied. At this point, turn the high-voltage output adjustment knob clockwise to increase the voltage. The voltage meter displays the voltage value in kV on the load test object, and the current meter displays the sum of the current flowing through the test object and all leakage currents, but does not include the current of the built-in high-voltage divider. The current is displayed in microamperes (uA).

If after turning on the power switch, the high-voltage indicator light (green) does not light up, and the "return to zero" light (red) in the fault display is on, it means the high-voltage output adjustment knob is not at zero. Please turn it counterclockwise to the "zero" position, and also return the fine-tuning voltage knob to zero. Then the "return to zero" light will go off, and you can turn it clockwise to increase the voltage.

3. If voltage regulation protection within the rated output voltage range is not needed, turn the overvoltage protection setting knob clockwise to the maximum value. At this time, when the output voltage exceeds the rated output voltage, automatic protection will cut off the high voltage. If voltage regulation protection within the rated output voltage range is required, follow the above steps to increase the voltage without load to the predetermined protection voltage, then slowly turn the overvoltage protection setting knob counterclockwise to the desired voltage. When overvoltage protection action occurs, the "overvoltage" indicator light will light up. Keep the overvoltage protection setting knob at this position, return the voltage increase knob to zero, and turn off the power. After connecting the test object, if the voltage exceeds the predetermined voltage during subsequent increases, the high voltage will be automatically cut off.

The ZGF digital DC high voltage generator complies with the ZBF24003-90 "General Technical Conditions for Portable DC High Voltage Generators" standard, and has been verified by Zhongshi GaocE Electrical Co., Ltd. and the National Testing Center of the National Electric Power Department. It strictly implements legal standards to ensure the safety of users of the DC high voltage generator.