Where can I buy ZGF-300kV/5mA DC high voltage generator

Where can I buy ZGF-300kV/5mA DC high voltage generatorOperation Method:

1. Preparation before operation
Connect the signal output cable socket and measurement input socket of the control box to the voltage doubling device cable socket with cables, and check their integrity before use. The connecting cables should not have short circuits or open circuits; The pressure doubling cylinder should have no condensation phenomenon; Connect the grounding of the control box to the grounding terminal of the voltage doubling device with copper wire of 2.5mm2 or more and ensure reliable grounding.
2. Installation instructions for water resistance
Before each experiment, unscrew the end of the water barrier with air holes and add water to submerge more than 2/3 of the conductive rod, with the end with air holes facing upwards.
After the experiment is completed, pour out the water and refill it before the next experiment.
3. Voltage setting value calibration
ZGF-300kV/5mA DC High Voltage GeneratorPlug in the power cord, turn on the power switch of the control box, and the voltage display meter, current display meter, and 0.75 times voltage display meter all show zero value. Rotate the voltage setting button clockwise to the end, and turn the voltage coarse adjustment knob and voltage fine adjustment knob counterclockwise to the zero position. The zero position indicator light will turn on. Lightly press the "Start" button, and the "Power" indicator light (red) will turn on. If the "Start" button is pressed and the red indicator light does not light up, it indicates that the voltage coarse and fine adjustment are not at zero position. Then turn the voltage coarse and fine adjustment knobs counterclockwise to zero position, and the red indicator light will light up.
Rotate the voltage coarse adjustment knob clockwise. When the voltage approaches the desired value, rotate the voltage fine adjustment knob until the desired voltage is reached. At this point, the voltage display value is in kV and the current display value is in mA.
Adjust the voltage setting knob counterclockwise to turn off the high voltage. At this time, the red indicator light will turn off and the "overvoltage" indicator light will turn on.
At this time, the instrument is set according to the required output voltage, that is, when the output reaches the desired voltage value, it automatically cuts off the high voltage and provides overvoltage protection. If the setting knob is not adjusted, the voltage value can only rise to the set voltage value each time. If the voltage needs to be raised to the rated value, the overvoltage setting knob must be turned clockwise to increase.

Where can I buy ZGF-300kV/5mA DC high voltage generatorProduct Features:

1. The chassis adopts a universal type chassis, which can be used both vertically and horizontally.
2. Adopting intermediate frequency voltage doubling circuit, applying PWM pulse width modulation technology and high-power IGBT devices.
3. Adopting voltage feedback, the output voltage stability is high, and the ripple coefficient is small ≤ 1%.
4. Full range smooth voltage regulation, fine voltage regulation accuracy ≤ 0.5%, stability ≤ 1%, voltage and current error 1% ± 1 word.
5. The boost potentiometer boosts the voltage from zero.
6. 0.75UDC1mA function button, convenient for testing zinc oxide lightning arrester, accuracy ≤ 1%.
7. The overvoltage protection adopts a dip code setting, which is clear at a glance with an error of ± 1%.

Technical conditions:

Power supply: AC220V ± 10%, 50Hz ± 1%
Output voltage indication accuracy:<1 level
Output current indication accuracy:<1 level
Ripple factor: ≤ 0.5%
0.75 times output voltage indication accuracy:<1 level, with latch

4. ZGF-300kV/5mA DC High Voltage GeneratorSample testing
Connect the test sample between the high-voltage output terminal and the ground terminal.
Turn on the power switch, lightly press the "Start" button, the "Power" indicator light (red) will turn on, slowly adjust the voltage coarse adjustment knob and voltage fine adjustment knob for testing. During testing, the voltage display meter indicates the test voltage value in kV; the 0.75 times voltage display meter indicates 75% of the test voltage value in kV; the current display meter indicates the test current value in mA.
During the testing process of the test sample, pressing the 0.75 times voltage display latch button will lock the display value of the 0.75 times voltage display meter, making it inconvenient to maintain the display value. This makes it easy to use as a reference voltage when conducting zinc oxide lightning arrester tests.

Technical parameters of ZGF-300kV/5mA DC high voltage generator: