ROM Shorted Turn Detection for Generator/motors
Sigmatech specializes in the detection of rotor winding shorted-turns in synchronous generators and motors. This information can help your plant operators and engineers pinpoint the cause of abnormal vibration, assist in major maintenance decisions and verify the quality of rewound rotors.
Shorted turns are the result of failed insulation between individual windings in generator rotors and can cause:
• Load sensitive vibration;
• Undetected local winding hot spots;
• Excessive excitation currents;
• Possible forced outages.
In today's highly competitive electrical power market, predictive maintenance is an effective method of minimizing maintenance costs and downtime. Monitoring the condition of your rotor windings with the Sigmatech. Flux probe and analysis products will help you make informed decisions on "when" and "if" to bring a machine down for a major overhaul and rotor rewinds. Sigmatech can install probes in all major power generation equipment, including Gas, Steam, Hydro, Fossil and Nuclear. Our system not only tells you if you have shorted turns in the rotor winding, but it pinpoints which coils are affected and provides an accurate estimate of the number of turn shorts in each coil.
