Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Tan Kexiong"'
Autor:
Lin, Du, Jiang, Lei, Li, Fuqi, Zhu, Deheng **, Tan, Kexiong, Wu, Chengqi, Jin, Xianhe, Wang, Changchang, Cheng, T.C.
Publikováno v:
In Tsinghua Science & Technology 2005 10(5):598-604
Autor:
Li Fuqi, Tan Kexiong, Jin Xianhe, Wu Chengqi, Wang Changchang, Zhu Deheng, Lin Du, T.C. Cheng, Jiang Lei
Publikováno v:
Tsinghua Science and Technology. 10:598-604
This paper introduces a computerized on-line partial discharge (PD) monitoring and diagnostic system for transformers. The system, which is already in use in a power station, uses wide-band active transducers and a data acquisition unit with modulari
Publikováno v:
IEEE Transactions on Dielectrics and Electrical Insulation. 2:700-707
The insulation system of HV apparatus deteriorates due to partial discharges (PD). PD tests are carried out successfully in shielded laboratories to verify the insulation quality and to rectify defects left during the manufacturing process. A variety
Publikováno v:
2002 IEEE Region 10 Conference on Computers, Communications, Control and Power Engineering. TENCOM '02. Proceedings..
The multi-resolution identification of transformer faults is significant for the maintenance of transformer. In this paper, a combinatorial artificial neural network (ANN) model, based on cluster analysis of data of dissolved gases in transformer oil
Publikováno v:
[1991] Proceedings of the 3rd International Conference on Properties and Applications of Dielectric Materials.
A computer-aided online detection system of partial discharges (PDs) in power transformers is described. The impulse electrical signals of PD are detected with a current transducing unit and the acoustic emission signals of the PD are detected with a
Publikováno v:
Proceedings of 5th International Conference on Properties and Applications of Dielectric Materials.
The application of Wavelet Transform to extract partial discharge signals from narrow-band disturbance such as sinusoidal interference is described in this paper. Mallat's algorithm of dyadic wavelet transform was used to filter out PD signals. Two k
Publikováno v:
Proceedings of the 6th International Conference on Properties and Applications of Dielectric Materials (Cat. No.00CH36347).
The methods of on-site electromagnetic noise suppression are key techniques for on-line partial discharge measurement in transformers based on the pulse current methods. It is difficult to analyze because of the complexity of noise sources and the se
Autor:
Gao Wensheng, Tan Kexiong
Publikováno v:
Proceedings of the 6th International Conference on Properties and Applications of Dielectric Materials (Cat. No.00CH36347).
A partial discharge (PD) signal in a transformer must propagate through the winding to its terminals before it arrives at a monitoring device, so the signal, on which the failure diagnosis is based, must undergo some distortion. In this work, the ele
Autor:
Tan Kexiong, Zheng Zhong
Publikováno v:
Proceedings of the 6th International Conference on Properties and Applications of Dielectric Materials (Cat. No.00CH36347).
A digital integrated system is developed to record partial discharge (PD) pulses and to recognize their patterns by waveforms. Special considerations on the experiment circuit are given to electromagnetic shielding, system bandwidth and pattern varie
Publikováno v:
Proceedings of the 6th International Conference on Properties and Applications of Dielectric Materials (Cat. No.00CH36347).
An on-line power equipment monitoring and diagnosis system (PEMDS), which is developed for monitoring multiple parameters of power apparatus, is introduced in this paper. The structure of the system and the principles of development are discussed. PE