Oil-immersion type high-power noninductive resistor

Abstract

The invention relates to an oil-immersion type high-power noninductive resistor which comprises a resistor element. The oil-immersion type high-power noninductive resistor is characterized in that the resistor element is encapsulated in a stainless steel shell, electrotechnical laminated boards are arranged on the inner wall and the at middle position of the stainless steel shell, and the stainless steel shell is separated into a leading-in chamber and a leading-out chamber through the electrotechnical laminated board at the middle position. The resistor element is composed of a resistor unit I and a resistor unit II which are integrated and arranged in the leading-in chamber and the leading-out chamber respectively. The resistor unit I and the resistor unit II are tightly arranged in a continuous S shape in the length direction and are opposite in arranging direction, and the resistor unit I and the resistor unit II are each formed by connecting a plurality of resistor sections arranged in an S shape end to end. The outer wall of the resistor element is wrapped by electrotechnical paper in the length direction of the resistor element, a set of porcelain insulation sleeves connected with the resistor unit I and the resistor unit II are additionally arranged at the ends of the stainless steel shell, and the leading-in chamber and the leading-out chamber of the stainless steel shell are filled with high-temperature resisting insulation oil. The oil-immersion type high-power noninductive resistor is simple in structure, small in size and excellent in electrodynamic force resisting performance.

Description

technical field [0001] The invention relates to a power device commonly used in the field of power transmission and distribution, in particular to an oil-immersed high-power non-inductive resistor. Background technique [0002] High-power non-inductive resistors are the most commonly used power devices in the field of power transmission and distribution. Filter resistors for UHV transmission projects, filter resistors for SVC, charging resistors for SVG, starting resistors for flexible DC transmission projects, neutral point grounding resistors, etc., all provide a wide range of markets for high-power non-inductive resistors space. [0003] With the upgrading of the transmission and distribution network, the power of non-inductive resistors is increasing. Traditional high-power non-inductive resistors are divided into cast iron resistors, grid resistors, strip resistors and mesh resistors. However, they all adopt natural air-cooled structure to dissipate heat for resistors...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of traditional high-power non-inductive resistors with large footprint and poor ability to withstand short-term impact currents, and to provide a simple structure, small volume, excellent anti-electric power performance, which can better meet the needs of users. Demanding oil-immersed high-power non-inductive resistors

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