The factory-supplied BYCGF ultra-low frequency high voltage generator integrates modern digital frequency conversion advanced technology, adopts microcomputer control, and fully automates voltage boosting, step-down, measurement, and protection, and allows manual intervention during automatic voltage boosting. Due to full electronization, it is small in size and light in weight, with a large-screen LCD display that is clear and intuitive, and can display output waveforms, and the printer outputs test reports. The design fully complies with the "General Technical Conditions for Special Test Instruments for Power Equipment", Part 4: "General Technical Conditions for Ultra-Low Frequency High Voltage Generators" power industry standard, and is very convenient to use. Currently, domestic and international methods use mechanical modulation and demodulation to generate ultra-low frequency signals, so there are issues such as non-standard sine waveforms, large measurement errors, spark discharge in the high-voltage part, bulky equipment, and the second and fourth quadrants of the sine wave require high-power high-voltage resistors for discharge shaping, resulting in high overall power consumption.
The ultra-low frequency withstand voltage test device can overcome these shortcomings. In addition, the following features need special explanation:
★ Current, voltage, and waveform data are all directly sampled from the high-voltage side, so the data is real and accurate.
★ Overvoltage protection: When the output exceeds the set voltage limit, the instrument will stop for protection, with an action time of less than 20ms.
★ Overcurrent protection: Designed with dual protection for high and low voltage. The high-voltage side can perform precise shutdown protection according to the set value; when the current on the low-voltage side exceeds the rated current, shutdown protection will occur, with action times both less than 20ms.
★ The high-voltage output protection resistor is designed inside the boosting body, so no external protection resistor is needed.
★ Due to the adoption of a high-low voltage closed-loop negative feedback control circuit, the output has no capacitive rise effect.
Technical Conditions
1. Output rated voltage: 0-30KV, 0-50KV, 0-80KV
2. Output frequency: 0.1Hz, 0.05Hz, 0.02Hz
3. Load capacity:
0.1 Hz max 1.1μF
0.05 Hz max 2.2μF
0.02 Hz max 5.5μF
4. Measurement accuracy: 3%
5. Voltage positive and negative peak error: ≤3%
6. Voltage waveform distortion: ≤5%
7. Usage conditions: indoor and outdoor;
Temperature: -10℃∽+40℃;
Humidity: ≤85%RH
8. Power supply: AC 50 Hz, 220V ±5%
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
