Adjustable high voltage capacitor device

Abstract

The invention relates to a suspended adjustable high-voltage capacitor device, especially capable of approximately "steplessly" adjusting the size of the capacitor. It includes a conductive rod and a high-voltage capacitor; the voltage-equalizing conductive rod is connected with an insulating tripod, and a hook is arranged on the voltage-equalizing conductive rod, and the hook is connected with the high-voltage capacitor. The insulating tripod is made of insulating resin, which has good mechanical strength and electrical insulation strength, provides suspension space for series capacitors and ensures that the insulation strength of the equalizing conductive rod to the ground meets the requirements of relevant regulations. Through the series-parallel connection of high-voltage capacitors with different capacitance values, the approximate continuous adjustment of the capacitance of the overall capacitor device in a relatively wide range is realized. It can realize approximately continuous adjustment of capacitance within the range of 0-10000pF, and the adjustment fineness can reach 100pF. The approximate stepless adjustment of the capacitance of the capacitor device is realized, and the overall withstand voltage can reach 300kV, and the invention adopts a split structure, which is convenient for transportation and on-site assembly and use.

Description

technical field [0001] The invention relates to a suspended adjustable high-voltage capacitor device, especially capable of approximately "steplessly" adjusting the size of the capacitor. Background technique [0002] In various field tests in the power industry, a power frequency high-voltage power supply is often required, which is generally obtained by series resonance. In a series circuit composed of resistors, inductors and capacitors, when the capacitive reactance is equal to the inductive reactance (that is, X C =X L ), the voltage and current at both ends of the circuit are in the same phase, and the circuit is purely resistive. This phenomenon is called series resonance. At this time, the voltage across the inductor and capacitor is Q times the voltage across the circuit, and Q is called the quality factor. [0003] In the field test, the series resonance mainly adopts two types of series resonance, the inductance adjustment type and the capacity adjustment type....

AI Technical Summary

Problems solved by technology

The capacitance-adjusting series resonance generally selects a fixed inductance according to the required primary voltage value, and considers the capacitance of the tested product to match the coupling capacitor to achieve series resonance. The main problem of low resonance quality factor caused by continuous adjustment

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