US 12,292,477 B2
Systems, devices, and methods for monitoring insulation conditions of high-voltage motors
Younes T. Sayed-Hasan, Al-Hasa (SA)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed on Dec. 15, 2022, as Appl. No. 18/066,912.
Prior Publication US 2024/0201263 A1, Jun. 20, 2024
Int. Cl. H02M 1/084 (2006.01); G01R 31/34 (2020.01); H02K 5/22 (2006.01); H02K 11/20 (2016.01); G01R 27/02 (2006.01)
CPC G01R 31/343 (2013.01) [H02K 5/225 (2013.01); H02K 11/20 (2016.01); G01R 27/025 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A system, comprising:
a high-voltage motor coupled to multiple motor leads housed within a terminal box;
a power supply coupled to the multiple motor leads, wherein the power supply is a three-phase power supply and wherein the three-phase power supply comprises
a different phase lead for each phase of the three-phase power supply, wherein the different phase lead for each phase is coupled to a different motor lead of the multiple motor leads; and
a ground lead coupled to a ground motor lead of the multiple motor leads; and,
a voltage injection device coupled to the power supply and the multiple motor leads, the voltage injection device configured to couple to a data acquisition system;
wherein the voltage injection device comprises multiple injection leads, and wherein a different injection lead of the multiple injection leads is coupled to each of the different phase leads and the ground lead of the three-phase power supply.