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AJF-120kV2 mA Fully automatic intelligent DC high voltage generator
1. Technical features:
Adopting intermediate frequency voltage doubling circuit, applying PWM pulse width modulation technology and high-power IGBT devices. The inaccurate linearity of PWM has been adjusted, resulting in a significant improvement in accuracy.
Adopting high voltage feedback, the output voltage stability is high, and the ripple coefficient is ≤ 1%.
The touch screen provides intuitive operation and a clear and accurate human-machine interface.
High precision AD conversion measurement of high voltage and current, real-time monitoring, and automatic adjustment of input voltage to achieve stable output high voltage when there is fluctuation in output voltage. The test data is authentic and reliable.
The full range adopts a single-chip microcontroller for smooth voltage regulation, and the boosting speed can be adjusted according to the test requirements.
The boost circuit can boost from zero, and the overvoltage, overcurrent, and test time can be set arbitrarily
■ Specially designed zinc oxide lightning arrester test menu option, especially suitable for 0.75UDC1mA DC leakage test of zinc oxide lightning arrester
■ Special stage voltage withstand test menu options, allowing for one click completion of power cable DC test projects according to test procedures
During the experiment, the fluctuation of current values is automatically recorded and the results can be displayed on the screen, which is particularly convenient for data analysis.
The double pressure cylinder is made of new materials, which are lightweight and sturdy. The exterior is coated with special insulation material, which has good electrical performance and strong moisture resistance.
It can automatically store 300 test data, print and query.
The instrument comes with a perpetual calendar and time function, which can display time and date when querying and printing experimental results.
An emergency stop safety button has been added, which can be manually intervened in case of abnormalities or emergencies during the test, improving the safety of the test.
2. Technical parameters:
Output voltage: 60kV, 120kV, 200kV, 300kV, 400kV, 500kV, 600kV
Output current: 2mA3mA5mA10mA
Test accuracy: ± 1.0% (reading ± 2 words)
Ripple factor: ≤ 1%
Voltage stability: Random fluctuations, ≤ 1% when the power supply voltage changes by ± 10%
Overload capacity: The no-load voltage can exceed the rated voltage by 10% and be used for 10 minutes
The maximum charging current is 1.5 times the rated current
Working mode: intermittent use, with a maximum continuous time of 30 minutes per use
■ Work environment:
Power supply: single-phase AC 50HZ 220V ± 10%
Temperature: 0~40 ℃
Relative humidity: not exceeding 85% at room temperature of 25 ℃ (no condensation)
Altitude: below 1500 meters
