High voltage to low voltage TSC device

Abstract

The invention discloses a high voltage to low voltage TSC device, and relates to the field of power devices. The device comprises a high voltage busbar, a circuit breaker A, a step-down transformer, an isolating switch, a current transformer, a lightning arrester, a low voltage busbar, a circuit breaker B, a thyristor switch, a series reactor, a capacitor, a microcomputer controller, a sampling PTand a sampling CT. The device combines the multiple functional features of SVC, SVG and high voltage group compensation, abandons their respective shortcomings, and is a new reactive power compensation method and idea.

Description

Technical field [0001] The present invention relates to the field of power equipment, in particular to a high-voltage-to-low-voltage TSC device. Background technique [0002] With the increasing demand for high-voltage reactive power compensation, many reactive power compensation industries are looking for a more reasonable and effective reactive power compensation method, and gradually implemented a variety of reactive power compensation methods, each method Each has its advantages and disadvantages. For example, SVC has fast response speed, but the cost is too high, the area is large, the maintenance is difficult, the loss is too large, and the harmonics are generated by itself; the high-voltage direct-mounted SVG is expensive, the area is large, the loss is large, and the maintenance cost Very high, high failure rate; high-voltage group compensation, the compensation effect is too poor, and the surge current is huge when the contactor is closed, which seriously affects the ser...

AI Technical Summary

Problems solved by technology

[0002] With the increasing demand for high-voltage reactive power compensation, many reactive power compensation industries are seeking a more reasonable and effective reactive power compensation method, and various reactive power compensation methods have gradually been implemented. Each method Each has advantages and disadvantages. For example, SVC has fast response speed, but the cost is too high, the floor area is large, maintenance is difficult, the loss is too large, and harmonics are generated by itself; high-voltage direct-mounted SVG is expensive, occupies a large area, has large losses, and maintains costs. Extremely high, high failure rate; high-voltage group compensation, the compensation effect is too poor, and the inrush current is huge when closing the contactor, which seriously affects the service life of the capacitor

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