High voltage direct current generator

High voltage direct current generatorAnother name:

DC high voltage generator, also known as high voltage generator, intermediate frequency DC high voltage generator, DC generator, portable DC high voltage generator, high-frequency DC high voltage generator, AC/DC high voltage generator.

High voltage direct current generatorIntroduction:

Relevant national standards referenced:
IEC 60-1:1989 High Voltage Test Techniques * Part: General Test Requirements
DLT 848.1-2004 General Technical Conditions for High Voltage Test Equipment Part 1: DC High Voltage Generator
The DC high-voltage generator adopts an intermediate frequency voltage doubling circuit, and the new type of DC high-voltage generator applies PWM pulse width modulation technology and high-power IGBT devices. According to electromagnetic compatibility theory, special shielding, isolation, and grounding measures are adopted. The DC high voltage test has achieved high quality, portability, and the ability to withstand rated voltage discharge without damage. The DC high-voltage generator has multiple protection functions, such as low voltage overcurrent, low voltage overvoltage, high voltage overcurrent, high voltage overvoltage, zero protection, and ungrounded protection. The fast turn off protection of the driving signal adopts sensor sampling at the output end, with a response time of nanoseconds. Through nanosecond level optical isolation components and nanosecond level analog switches, the driving signal of the power amplifier circuit is cut off within 2 microseconds to ensure that the power device is not damaged in the event of output short circuit. It refers to high-voltage power supplies mainly used for insulation and leakage detection, and there is no strict difference between high-voltage power supplies and high-voltage generators. DC high-voltage generators are the first in the industry to adopt a segmented structure, which can be used for both high and low voltage levels while maintaining their accuracy. Taking 100/200kV/2mA divided into two sections as an example, a single section can be used for 100kV/2mA, which can be used for DC high voltage testing of electrical equipment in 35kV and below systems. At this time, the accuracy of the measurement can be ensured, avoiding the need for large horses to pull small cars; It can be used at 200kV/2mA during two sessions Can be used for DC testing of 220kV segmented and 110kV and below zinc oxide lightning arresters, as well as DC withstand voltage testing of cross-linked cables. Truly achieving dual use of one machine greatly facilitates the use of on-site users. Mainly used to study the insulation strength of electrical equipment DC precision and converter station equipment and insulation materials under DC high voltage, DC power line corona and ion current and their effects, as well as to conduct leakage current tests on AC and DC power equipment. In addition, it can also serve as a power source for other high-voltage testing equipment such as impulse voltage generators, impulse current generators, oscillation circuits, etc. In other technological fields, such as physics (accelerators, electron microscopes, etc.), electronic medical equipment (X-rays), industrial applications (waste gas precipitation, electrostatic spraying, etc.), or electronic communication (television, radio stations), they are also widely used.