1. Rwb thaiv tsev Resistance Test: Siv lub megohmmeter los ntsuas qhov kev tiv thaiv ntawm windings thiab av, thiab nruab nrab ntawm windings.
2. Dissolved Gas Analysis (DGA): Ntsuam xyuas cov proportions ntawm cov yam ntxwv gases (H₂, CH₄, C₂H₂, thiab lwm yam) hauv cov roj los txiav txim seb hom kev ua txhaum.
3. Kev Tiv Thaiv Ib Feem (PD) Kev Tshawb Fawb: ntes cov teeb liab uas siv ultrasonic, electromagnetic, lossis hluav taws xob pulse detectors.
4. Infrared Thermography thiab Temperature Rise Monitoring: Tshawb xyuas cov windings thiab cov pob qij txha nrog ib qho infrared thermal imager txhawm rau txheeb xyuas qhov chaw kub.
5. Kev vibration thiab acoustic tsom xam: Tau txais cov teeb liab siv accelerometers lossis sonar probes los nrhiav cov teeb meem ntawm cov tshuab.
