Patent ID: 11921148
Assignee: DELTA ELECTRONICS (SHANGHAI) CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 14:
15. The device for monitoring partial discharge according to claim 13, wherein the signal detection processing unit is further configured to acquire a second signal from the second sensor, and the signal detection processing unit has the following determining logic:
if an amplitude of the first signal is greater than a first threshold, an amplitude of the second signal is greater than a second threshold, and an amplitude of the ground wire signal is less than a ground wire threshold, determining that the tested product is experiencing a partial discharge;
if an amplitude of the first signal is greater than the first threshold, an amplitude of the second signal is greater than the second threshold, and an amplitude of the ground wire signal is greater than the ground wire threshold, determining that the monitoring circuit is interfered;
if an amplitude of the first signal is less than the first threshold, and an amplitude of the second signal is less than the second threshold, determining that no partial discharge occurs in the tested product.