Research and Application of FTA and Petri Nets in Fault Diagnosis in the Pantograph-Type Current Collector on CRH EMU Trains

Table 1

Structural parameters of the pantograph on a CRH EMU train.

Structural parameters	Values	Structural parameters	Values
Model	DSA250	Vent lifting height	3000 mm (including insulator)
Structure	Single arm pantograph	Maximal action height	2800 mm (including insulator)
Rated voltage	25 kV	Minimal action height	888 mm (including insulator)
Rated current	1000 A	Folded height	593 mm (including insulator)
Weight	115 kg	Contact pressure	70 N 5 N
Ambient temperature	−40°C~+60°C	Design life	30 years