JPS59143832U - Power supply device of the DC electric railway - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

Fig. 1 is a circuit diagram of a conventional DC electric railway power supply device, Fig. 2 is a circuit diagram showing one embodiment of this invention, and Figs. 3 and 4 are circuit diagrams showing other embodiments of this invention. It is a diagram. 20--Power transmission line, 23a, 23b--First, second
Forward power converter, 24...DC bus, 25a, 25b. 26a, 26b... first and second thyristor circuit breakers for power running, 25C, 26C... thyristor circuit breakers for regeneration,
29a, 29b, 30a, 30b--1st and 2nd electric train tracks, 29C, 30C--3rd electric train tracks, 31
a. 31b, 32a, 32b...dead section, 33
a, 33b, 34a, 34b--diode, 37
...Electric car.

Claims (1)

[Scope of utility model registration request] It is divided by multiple forward power converters consisting of silicon rectifiers operated in parallel and converting AC power into DC power, a DC bus bar connected to the output side of these forward power converters, and this DC bus bar and a dead section. A power running thyristor circuit breaker inserted in series in each of the electric lines connecting the first and second overhead contact lines; A third overhead contact line formed with a dead section, a regenerative thyristor circuit breaker inserted in the electric circuit connecting the third overhead contact line and the DC bus, and an anode side of the regenerative thyristor circuit breaker, respectively. A power supply device for a DC electric railway, comprising a pair of diodes whose cathodes are connected and whose anode sides are respectively connected to the cathode sides of the power running thyristor circuit breaker.