SU1202918A1 - Arrangement for power supply of electrified direct current railways - Google Patents

Description

This invention relates to an electrified railway transport and may be used to improve the power supply of an electric rolling stock.

The purpose of the invention is to stabilize the voltage in the contact network and

device simplification, I

FIG. Figure 1 shows a schematic diagram of the device in Figure 2 - a graph of the distribution of voltage along a traction network.

The power supply device contains traction substations, the primary windings of transformers 1 of which are connected to power line 2, and the secondary to contact network 3 and rails 4, and a single-phase linear transformer 5 with voltage regulation under load, with one output of the primary winding of a single-phase the transformer is connected to the power line 2, and one output of the secondary to the contact network 3, and the other conclusions of these windings are combined

and connected to rail 4. In addition, there is a load of 6.

The device works as follows.

In the presence of a significant traction load and the absence of a linear transformer 5, the voltage distribution along the traction network 3 has the form of a curve (Fig. 2). When an additional single-phase traction transformer is connected in the middle of the feeder zone, the voltage at this point is significantly higher and, therefore, the voltage distribution along the traction network 3 has the shape of a curve (Fig.). A linear single-phase transformer takes on a part of the traction load located on

the feeder zone between traction substations, while at the expense of reducing the supply arms, the losses of voltage and energy in the traction network are reduced.

By adjusting the voltage of a linear single-phase transformer, it is possible to significantly reduce the equalizing currents in the traction network.

Editor N. Bobkova

Compiled by V.Kochetkov Tehred A.Ach

Order 8371/22 Circulation 649Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch PPP Patent ,, Uzhgorod, st. Project, 4

Corrector S.Cherni

Claims (1)

DEVICE FOR POWER SUPPLY OF ELECTRIC RAILWAYS VOLTAGE CURRENT, containing traction substations, the transformer primary windings of which are connected to the power line, and the secondary ones to the contact network and rails, and a linear single-phase transformer with voltage regulation under load, characterized in that, in order to stabilize the voltage in the contact network and simplify the circuit , one terminal of the primary winding of the linear single-phase transformer is connected to the power line, and one terminal is secondary to the contact network, and the other terminals of these windings are combined and connected us to the rail. »SU w, 1202918 FIG. /