A power grid access defense method of a magnetic circuit control type fault current limiter
A fault current limiter and magnetic circuit technology, applied in the direction of electrical components, emergency protection circuit devices, etc., can solve the problems of restricting the practical application of large power grids, insufficient awareness of the reliability of fault current limiters, and the impact on the safe and stable operation of the power grid. The effect of improving adaptability
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[0050] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0051] Such as figure 1 As shown, the grid access defense method of the magnetic circuit control type fault current limiter of the present invention includes three layers of defense: including multi-site defense, emergency defense and grid defense.
[0052] In-situ defense: configure the fault current limiter protection device, monitor the state of the magnetic circuit control type fault current limiter, and cut off or isolate the fault current limiter when the fault current limiter fails. It is guaranteed that after the failure of the magnetic circuit control type fault current limiter, the abnormality can be quickly detected and quickly isolated or removed on the spot, reducing the influence ...
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