Direct current deicing and SVG device low in cost and capable of continuously regulating voltage
A DC ice-melting, low-cost technology, applied in the direction of cable installation, overhead installation, flexible AC transmission system, etc., to achieve the effect of simple device, reduced configuration ratio, and high utilization rate
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[0031] The specific embodiment of the present invention is shown in the figure.
[0032] In this embodiment, a low-cost and continuously adjustable DC deicing and reactive power compensation SVG device is composed of an input high-voltage switchgear 1 , a multi-winding phase-shifting step-down transformer 2 and a converter cabinet 3 . The output end of the input high-voltage switchgear 1 is connected to the input end of the multi-winding phase-shifting step-down transformer 2 ; the output end of the multi-winding phase-shifting step-down transformer 2 is connected to the converter cabinet 3 .
[0033] figure 1 Shown is the topological structure diagram of the main circuit of this embodiment.
[0034] The high-voltage circuit breaker QF input to the high-voltage switchgear 1 is connected to the power grid 4, and the remote opening / closing of the equipment can be realized by using the opening and closing of the QF. The output of QF is connected to the multi-winding phase-shif...
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