Intelligent arc extinction and resonance extinction overvoltage protection integral optimization device
An optimized device and intelligent arc suppression technology, which is applied in the direction of emergency protection circuit devices, emergency protection circuit devices, circuit devices, etc. for limiting overcurrent/overvoltage, can solve the problem that the protection characteristics cannot be matched with each other, and cannot be completely and effectively suppressed System overvoltage and other problems, to achieve the effect of eliminating frequent fusing, suppressing ultra-low frequency oscillating current, and gently rising the leading edge
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[0019] Embodiments of the present invention are further described below in conjunction with accompanying drawings:
[0020] Such as figure 1 As shown, the cabinet 1 is equipped with an isolating switch 2, a PT harmonic elimination device 3, a large-capacity integrated overvoltage protector 4, a single-phase vacuum contactor 5 and a high-voltage current-limiting fuse 6, which are installed on the front door of the cabinet 1. Intelligent controller 7, isolating switch 2 are respectively connected with PT harmonic elimination device 3, large-capacity integrated overvoltage protector 4 and high-voltage current-limiting fuse 6, and high-voltage current-limiting fuse 6 is connected with single-phase vacuum contactor 5 , the intelligent controller 7 is connected with the PT harmonic elimination device 3 and the single-phase vacuum contactor 5 respectively.
[0021] The isolation switch 2 is set in the middle of the cabinet 1, the PT harmonic elimination device 3 is set in the rear l...
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