4IEC. Loading guide for oil- immersed power transformer[S], revision of publication 354. 1991.
5Hammon T E. Optic fibre bragg grating temperaturesensor measurements in an electrical power transformer using a temperature compensated fibre bragg grating as a reference[C]. Proc. of the 11th International Conference on Optical Fibre Sensors. Sapporo, Japan, 1996:566-569.
6Betta G, Pietrosanto A, Scaglione A. An enhanced fiber optic temperature sensor system for power transformer monitoring [J]. IEEE Trans on Instrumentation and Measurement, 2001,20(5): 1138-1143.
7Galdi V,Ippolito L.Piccolo A et al.Neural diagnostic sysuem for transformer thermal overload protection[J].IEE Proc EPA.2000,147(5):415~421.