US 11,953,552 B2
System and apparatus for monitoring partial discharges in switchboards
Chang Hwan Jin, Anyang-si (KR); Jong Ung Choi, Anyang-si (KR); Hyun Ho Kwon, Anyang-si (KR); Gwang Goo Kang, Anyang-si (KR); and Jin Ho Lee, Anyang-si (KR)
Assigned to LS ELECTRIC CO., LTD., Anyang-si (KR)
Appl. No. 17/435,737
Filed by LS ELECTRIC CO., LTD., Anyang-si (KR)
PCT Filed Jul. 16, 2019, PCT No. PCT/KR2019/008780
§ 371(c)(1), (2) Date Sep. 2, 2021,
PCT Pub. No. WO2020/179976, PCT Pub. Date Sep. 10, 2020.
Claims priority of application No. 10-2019-0025147 (KR), filed on Mar. 5, 2019.
Prior Publication US 2022/0137135 A1, May 5, 2022
Int. Cl. G01R 31/327 (2006.01); H02B 13/065 (2006.01)
CPC G01R 31/327 (2013.01) [H02B 13/065 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A system for monitoring a partial discharge, comprising:
a plurality of groups, each group including a plurality of switchboards, each switchboard including a partial discharge sensor and one switchboard in each group including a single noise sensor for that group; and
a control device, wherein:
each partial discharge sensor acquires partial discharge data generated in a corresponding switchboard, and transmits the partial discharge data to the control device; and
the single noise sensor for each group acquires noise data for that group and transmits the noise data for that group to the control device; and
the control device monitors the partial discharge based on a result value obtained by differentiating the partial discharge data received from partial discharge sensors associated with a given group of the plurality of groups against the noise data received from the single noise sensor associated with the given group.