Parallel connection method and parallel connection device for multiple local discharge signals
A technology of discharge signal and partial discharge, applied in testing circuits, electrical components, testing dielectric strength, etc., can solve the problems of signal energy attenuation, signal loss, and the inability of switching circuits to achieve signal self-triggered closing and shut-off, to improve the The effect of safe operation of equipment and avoidance of loss
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[0051] Example one:
[0052] figure 2 This is a flowchart of a method for parallel connection of multiple partial discharge signals provided by an embodiment of the present invention.
[0053] Such as figure 2 As shown, the method includes the following steps:
[0054] Step S201: Receive signals input by multiple sensors.
[0055] The sensors include partial discharge UHF sensors, ultrasonic sensors, and high frequency current sensors, which respectively generate UHF sensing signals, ultrasonic signals, and high frequency current signals. That is, this step can be specifically: receiving multiple local UHF sensor inputs Ultra-high-frequency sensing signals from, ultrasonic sensing signals input by multiple ultrasonic sensors, and high-frequency current sensing signals input from multiple high-frequency current sensors.
[0056] Step S202: preprocessing each signal, including amplification and filtering, to obtain amplified and filtered signals. Among them, in the preprocessing of th...
Example Embodiment
[0069] Embodiment two:
[0070] On the basis of the first embodiment, the embodiment of the present invention also provides a parallel connection device for multiple partial discharge signals, such as Figure 4 As shown, it is a schematic diagram of a parallel connection device for multiple partial discharge signals provided by an embodiment of the present invention.
[0071] The multiple partial discharge signal parallel connection device includes the following sub-devices:
[0072] The signal input interface 401 is used to receive signals input by multiple sensors.
[0073] The sensors include partial discharge UHF sensors, ultrasonic sensors, and high frequency current sensors, which respectively receive partial discharge UHF sensing signals, ultrasonic signals, and high frequency current signals. That is, the signal input interface 401 is specifically used to receive multiple partial discharge characteristics. Partial discharge ultra-high frequency sensing signals input by high-fr...
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