Adjustable high-voltage capacitor device

Abstract

The invention relates to a suspended adjustable high-voltage capacitor device which is particularly capable of regulating capacitance in an approximately stepless manner. The suspended adjustable high-voltage capacitor device comprises a conducting rod and a high-voltage capacitor; and a voltage-sharing conducting rod is connected with an insulating tripod, and a hook is arranged on the voltage-sharing conducting rod and connected with the high-voltage capacitor. The insulating tripod is made of insulating resin with good mechanical strength and electrical insulation strength, thereby providing suspension space to series capacitors and ensuring that the ground insulation strength of the voltage-sharing conducting rod can meet relevant specification requirements. Die to the series and parallel combined connections of the high-voltage capacitors with different capacitances, the capacitance of the whole capacitor device can be approximately continuously adjusted within a very wide range. The capacitance can be approximately continuously adjusted within the range of 0-10000 pF, and the fineness of adjustment can reach 100 pF. The capacitance of the capacitor device can be adjusted in the approximately stepless manner, the overall withstand voltage can reach 300 kV, and due to the separated structure, the adjustable high-voltage capacitor device can be conveniently transported, assembled and used on site.

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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