US 12,445,019 B2
Monitoring system for electrical motors insulation
Nasser Monif Alotaibi, Dhahran (SA); and Ali Ahmed Alameer, Dhahran (SA)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed on Feb. 14, 2023, as Appl. No. 18/168,949.
Prior Publication US 2024/0275244 A1, Aug. 15, 2024
Int. Cl. H02K 11/25 (2016.01); H02K 1/16 (2006.01); H02K 3/28 (2006.01); H02K 3/30 (2006.01); H02K 3/34 (2006.01)
CPC H02K 11/25 (2016.01) [H02K 1/16 (2013.01); H02K 3/28 (2013.01); H02K 3/30 (2013.01); H02K 3/345 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A system, comprising:
an electric motor, comprising:
one or more windings wrapped around a magnetic core within one or more stator slots of the electric motor,
wherein each of the one or more windings comprises two or more coils, and
a groundwall insulation layer wrapped around the two or more coils;
a sensor coupled to the one or more windings,
wherein the sensor is a resistance temperature detector (RTD) configured to measure a temperature of the one or more windings at a specified loading condition of the electric motor;
a controller connected to the sensor; and
a computer processor coupled to the controller, the computer processor configured to receive temperature data from the RTD and to determine estimated temperature data at a 100% loading condition of the electric motor based, at least in part, on the received temperature data,
wherein the computer processor is further configured to compare the estimated temperature data at the 100% loading condition to international standards.