High-voltage line outlet structure of electric reactor at voltage of less than or equal to 500kV

Abstract

Disclosed is a high-voltage line outlet structure of an electric reactor at a voltage of less than or equal to 500kV. The high-voltage line outlet structure comprises a high-voltage phase line and a sleeve connected with the line outlet end of the high-voltage phase line, wherein the high-voltage phase line comprises a high-voltage phase line horizontal part and a high-voltage phase line vertical part; the outside of the line outlet end of the high-voltage phase line vertical part is nested with a voltage-sharing ball insulating assembling part; the outside of the voltage-sharing ball insulating assembling part is nested with an insulating paper cylinder assembling part; an electrified part of the sleeve is nested in the insulating paper cylinder assembling part, and the lower end of the insulating paper cylinder assembling part extends to a position above the high-voltage phase line horizontal part; and the high-voltage phase line and the insulating paper cylinder assembling part are both fixed in an oil tank body through a lead supporting structure. The invention provides the line outlet structure of the electric reactor, and the line outlet structure is suitable for the electric reactor at the voltage of less than or equal to 500kV; the line outlet mechanical strength, the electrical performance and the temperature rise requirement can be satisfied, the shock resistance of parallel electric reactors can be improved, and long-term safe operation of the electric reactor can be ensured.

Description

technical field [0001] The invention relates to the technical field of shunt reactors, in particular to a reactor high-voltage outlet structure of 500kV or below. Background technique [0002] Traditional AC transmission is restricted by transmission power limit, reactive voltage control, system safety and stability and other factors, and has been unable to adapt to ultra-long-distance power transmission. As a point-to-point, ultra-long-distance, large-capacity power transmission technology solution, half-wavelength power transmission technology is one of the effective ways to support transnational and transcontinental power transmission, and has strong advantages. Half-wavelength power transmission technology has higher technical requirements such as overvoltage suppression. Using controllable reactors to limit power frequency overvoltage is an effective technical means, which can ensure the effectiveness, stability and reliability of half-wavelength power transmission. ...

AI Technical Summary

Problems solved by technology

Since there is no shielding structure and the electric field distribution is uneven, in order to ensure the safe and stable operation of the controllable reactor, a large insulation distance is required around it, the stability and reliability are low, and it will lead to an increase in the overall volume of the controllable reactor and material costs. increase, economical decline

With the traditional direct outlet structure, it is difficult to process the molded insulating parts, the cost is high, the manufacturing accuracy is low, it is easy to be deformed by moisture, and it is impossible to observe the specific position of the bushing equalizing ball and the lead wire, and the workshop is poor in operability

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