Voltage withstand test ultra-low frequency high voltage generator

NegotiableUpdate on 01/16

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

The ultra-low frequency high voltage generator for voltage withstand test is controlled by a microcomputer and automatically increases, decreases, and discharges voltage. It is operated with photoelectric control to output a 0.1HZ sine wave and can be manually intervened during the automatic voltage boosting process.

Product Details

Voltage withstand test ultra-low frequency high voltage generator

Product Introduction

Combining advanced modern digital frequency conversion technology, using microcomputer control, automatic boosting, lowering, and discharging, with photoelectric control output of 0.1HZ sine wave, and manual intervention during the automatic boosting process. Due to full electronicization, it has a small size and light weight, with a large screen LCD display that is clear and intuitive, and can display output waveforms with printed output. The design indicators fully comply with the power industry standards of "General Technical Conditions for Special Test Instruments for Power Equipment, 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 these shortcomings, and the protection function design is as follows:

Overvoltage protection: When the set test voltage value is exceeded by 10% (or 1.1 times), the instrument will shut down for protection, with an action time of less than 20 milliseconds.

Overcurrent protection: designed as a dual protection of high and low voltage, the high voltage side can be precisely shut down for protection according to the set value; 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.

function

1. The ultra-low frequency signal generated by the frequency conversion technology used has a high high-voltage output power;

2. Small size, light weight, and easy to carry;

3. It has protection functions such as power overcurrent, high-voltage overcurrent, and oil tank overheating;

4. Equipped with an output frequency modulation device, its output frequency can be adjusted to 0.1, 0.05, and 0.02 Hz respectively to adapt;

5. The need for high-voltage testing of cables and electrical equipment of different specifications and models;

6. The current, voltage, and waveform data are all directly sampled from the high-voltage side, so the data is accurate;

7. Equipped with overvoltage protection function, when the output exceeds the set voltage limit value, the instrument will shut down for protection, with an action time of less than 20ms;

8. Equipped with overcurrent protection function: designed with high and low voltage dual protection, the high voltage side can be precisely shut down for protection according to the set value; 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 20ms;

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

10. Due to the use of high and low voltage closed-loop negative feedback control circuits, there is no capacitance rise effect in the output;

Voltage withstand test ultra-low frequency high voltage generator

Technical Specifications

Table 1:

model	rated voltage	Carrying capacity	Power fuse tube	Product weight
VLF-30KV	30kV/20mA (Peak value)	0.1Hz,≤0.5μF～1.1μF	5A	Controller: 4kg Boosting body: 25kg
		0.05Hz,≤0.5μF～2.2μF
		0.02Hz,≤0.5μF～5.5μF
VLF-50KV	50kV/30mA (Peak value)	0.1Hz,≤0.5μF～1.1μF	7A	Controller: 4kg Boosting body: 50? K
		0.05Hz,≤0.5μF～2.2μF
		0.02Hz,≤0.5μF～5.5μF
VLF-60KV	60kV/30mA (Peak value)	0.1Hz,≤0.5μF	9A	Controller: 4kg Boosting body 1 (30kV): 25kg Boosting body 2 (30kV): 25kg
		0.05Hz,≤0.5μF～1μF
		0.02Hz,≤0.5μF～2.5μF
VLF-80KV	80kV/30mA (Peak value)	0.1Hz,≤0.5μF	12A	Controller: 4kg Boosting body 1 (30kV): 25kg Boosting body 2 (50kV): 50kg
		0.05Hz,≤0.5μF～1μF
		0.02Hz,≤0.5μF～2.5μF

Output rated voltage	Refer to Table 1 above (Table 1)
output frequency	0.1Hz、0.05Hz、0.02Hz
Carrying capacity	0.1Hz maximum 1.1 μ F
	0.5Hz maximum 2.2 μ F
	0.02Hz maximum 5.5 μ F
measurement accuracy	1%
Positive and negative peak voltage errors	≤3%
Voltage waveform distortion	≤5%
Terms of Use	Indoor and outdoor
temperature	-10℃—+40℃
humidity	≤85%RH
power supply	Frequency 50Hz, voltage 220V ± 5%
Power fuse tube	Refer to Table 1 above (Table 1)

Note: Product parameters and appearance are for reference only. Parameters and models are subject to change without prior notice.