| Title |
Development of Shorted-Turn Diagnosis system for Generator Rotor Winding |
| Authors |
이영준(Lee, Yeong-Jun) ; 김희동(Kim, Hui-Dong) ; 주영호(Ju, Yeong-Ho) |
| Keywords |
on-line diagnosis system ; shorted-turn ; generator rotor ; flux probe |
| Abstract |
On-line diagnosis system has been developed and is now applied the detection of shorted turns in the field winding of large generator. This system consists of data aquisition system and display PC. The data aquisition system detects voltage waveforms from flux probe sensor installed in the stator slot. The display PC shows theshorted-turn situation of generator rotor winding. A shorted-turn diagnosis test wasperformed on five gas turbine generators at the Seoinchon combined cycle power plant. The test was conducted using an new diagnosis system and digital oscilloscope which can identify the pole location, the slot number and the number of shorted turns within each slot. It is confirmed that results of two systems are very same in the field tests. |