Passive filtering device and method with lightning-protection isolation and fireproof early warning functions
A passive filtering and functional technology, applied in harmonic reduction devices, parts of emergency protection devices, circuit devices, etc., to eliminate interference and ensure accurate detection.
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[0055] The specific embodiments provided by the present invention will be described in detail below with reference to the accompanying drawings.
[0056] like figure 1 As shown in the figure, a passive filter device with lightning protection isolation and fire early warning functions is a device with ground potential counterattack isolation, fire early warning, and passive filtering functions, including voltage sensors, current sensors, sampling circuits, signal Processing circuit, main control MCU, arc fault alarm circuit, switch isolation output circuit, thyristor drive circuit, thyristor switch, capacitor, inductor and ground potential counterattack isolation module.
[0057] like figure 2 As shown in the figure, the main control MCU connects the voltage sensor and the current sensor through the signal processing circuit and the sampling circuit, and the main control MCU analyzes the same voltage and current sampling signals through arc fault analysis and harmonic current...
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