RDDQ ultra-low frequency AC high voltage test device

RDDQ ultra-low frequency AC high voltage test device

1Product Brief：

RDDQ ultra-low frequency AC high voltage test deviceBy integrating modern digital frequency conversion technology and adopting microcomputer control, the automatic processes of boosting, lowering, measuring, and protecting can be achieved, and manual intervention can be carried out during the automatic boosting process. Due to full electronicization, it has a small size, light weight, large screen LCD display, clear and intuitive display, and can display output waveforms and printer output test reports. The design indicators * comply with the power industry standard of "General Technical Conditions for Power Equipment Testing Instruments, Part 4: General Technical Conditions for Ultra Low Frequency High Voltage Generators", and are very convenient to use. Nowadays, both domestically and internationally, mechanical methods are used for modulation and demodulation to generate ultra-low frequency signals, resulting in non-standard sine wave waveforms, large measurement errors, spark discharge in the high-voltage part, bulky equipment, and high-power high-voltage resistors for discharge shaping in the second and fourth quadrants of the sine wave. Therefore, the overall power consumption of the equipment is relatively high. This product can overcome some of these shortcomings, and in addition, there are the following features that need to be specifically explained:

The current, voltage, and waveform data are all directly obtained through high-voltage side sampling, so the data is true and accurate.

★ Overvoltage protection: When the output exceeds the set voltage limit, the instrument will shut down for protection, with an action time of less than 20 milliseconds.

★ Overcurrent protection: Designed as a dual protection for high and low voltage, the high voltage side can be finely tuned according to the set value

Ensure shutdown protection; When the current on the low-voltage side exceeds the rated current, a shutdown protection will be implemented, with an action time of less than 20 milliseconds.

The high-voltage output protection resistor is designed inside the boost body, so there is no need to connect additional protection externally

Resistance.

Due to the use of high and low voltage closed-loop negative feedback control circuit, the output has no capacitance boost effect

Should.

IIUltra low frequency high voltage generator/programmable ultra-low frequency high voltage generator/0.1H2 ultra-low frequency generation technical parameters

1. Rated output voltage: refer to Table 1

2. Output frequency: 0.1Hz, 0.05Hz, 0.02Hz

3. Load capacity: Refer to Table 1 for maximum load capacity of 1.1 μ F at 0.1 Hz

0.05 Hz zui 大 ２.2μF

0.02 Hz zui 大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%