High-voltage direct current generating module and generator

Abstract

The invention relates to the field of high-voltage measurement, and discloses a high-voltage direct current generating module and a generator. In the embodiment, the a high-voltage direct current generating module comprises a first coil, a second coil, a third coil, a first diode, a second diode, a first capacitor, a second capacitor, a first resistor and a second resistor. The embodiment of the invention further provides a high-voltage direct current generator. The high-voltage direct current generator reduces the element appliance number of the high-voltage direct current generating module, and further decreases the volume of the high-voltage direct current generating module, and simplifies the circuit connection of the generating module; the high-voltage direct current generating module is located in an insulation environment, the maintaining cost of the generator is reduced, the volume and assembling difficulty of the generator are reduced, the expansion of higher voltage is rapidly completed; the high-voltage direct current generating module is convenient to move and use.

Description

technical field [0001] The invention relates to the field of high-voltage measurement, in particular to a high-voltage direct current generation module and generator. Background technique [0002] Power equipment often needs to conduct insulation tests under DC high voltage, for example, to measure the electrical insulation strength and leakage current of power equipment. And some AC equipment with large capacitance, such as power cables, need to carry out DC withstand voltage test instead of AC withstand voltage test. The power equipment used in EHVDC transmission needs to undergo high-voltage tests. DC high-voltage generators are widely used in power test departments of electric power departments, industrial and mining, metallurgy, steel and other enterprises. Conduct DC high-voltage tests on high-voltage electrical equipment such as zinc oxide arresters, power cables, transformers, and generators. [0003] The inventors found that the currently used ultra-high voltage ...

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Problems solved by technology

[0003] The inventors found that the currently used ultra-high voltage DC high voltage generator uses a combination of capacitors and silicon stack half-wave voltage doubler rectifier circuits, but the capacitors and silicon stack voltage doubler modules are exposed to the outside when assembled, and the size of the capacitor is huge. The specific combined circuit with the silicon stack half-wave voltage doubler rectifier circuit is as Image 6 As shown; Humidity and dust have an impact on the exposed parts, so it takes time and money to maintain the generator, which increases the cost of using the generator; when it is necessary to increase the maximum measurement value of the generator, it is necessary to carry out Add new modules, disassemble and upgrade the generator, which takes up a large area during the test, which is not conducive to movement and inconvenient use

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