RU2668234C1 - Method of removing ice from high-speed main contact suspension wires in air gunner zone without crossing wires - Google Patents

Abstract

FIELD: electricity.SUBSTANCE: use in the field of electric power for the melting of ice on wires of the contact network of railway transport. Method of removing ice from the wires of the high-speed main contact suspension in the zone of the air gunner without crossing the wires consists in passing an electric current through the wires of the contact suspension, in this case, pre-form the circuit by means of electrical connectors by connecting the wires of the first contact suspension air gunner zone to the wires of the third contact suspension and the connections at the end of the air gunner zone of the wires of the third contact suspension with the wires of the second contact suspension, and to transmit electric current through the formed circuit from the wires of three contact pendants, electric power is supplied to it from the power transformer of the traction substation of the contact network.EFFECT: technical result is to increase the efficiency and speed of ice removal on the wires of the high-speed mains contact network, including the elements of its air gunner.1 cl, 1 dwg

Description

The invention relates to traction power supply in railway transport, and can be used for melting ice on the wires of the contact network of railway transport.

A known method of heating the wires of the contact suspension, including passing current through a loop formed by the wires of the contact suspensions of two adjacent paths and a heating unit, in which create two identical loops from the wires of the contact suspension of one path, each of which includes a support cable, a transverse electrical connector and a contact wire ; in this case, both loops are connected in parallel and connected to a heating unit, at the output of which the current can be either alternating or constant, while the heating unit is connected to a control unit that is connected to the sensor for monitoring the temperature of the loop wires, and the heating zone of the wires is determined by the distance between two adjacent transverse electrical connectors (RU2485656, H02G 7/16, 06/20/2013).

In the known method requires additional funds, which are used as a heating unit, and this method is not intended for melting ice on the air arrow without crossing the wires of the high-speed highway.

The closest analogue is a method of removing ice from double or multiple wires of a contact network and a power line, which consists in passing electric current through wires through which alternating current or current pulses are passed with a frequency close to mechanical resonance and an amplitude sufficient to overcome external and internal friction forces (RU 2166826, H02G 7/16, 05/10/2001).

The known method of removing ice when it is used on a high-speed highway does not allow uniform heating of the wires, including air guns and melting ice on them.

The technical result consists in increasing the efficiency and speed of removing ice on the wires of the contact network of a high-speed line, including elements of its air arrow.

The technical result is achieved by the fact that in the method of removing ice from the wires of the contact suspension of the high-speed line in the zone of the air arrow without crossing the wires, which consists in passing electric current through the wires of the contact suspension, according to the invention, they pre-form a circuit using electrical connectors by connecting at the beginning of the zone of the air arrow the wires of the first contact suspension with the wires of the third contact suspension and the connection at the end of the air arrow zone of the wires third catenary wire with the second contact suspension, and for passing an electric current through the circuit formed by three wires of overhead lines, it is supplied power from the power transformer substation traction contact network.

The implementation of the method of removing ice from the wires of the contact suspension of the high-speed line in the zone of the air arrow without crossing the wires is illustrated in the drawing.

For uniform heating of the wires, it is necessary that the current flow from the power source of the traction substation installed at the beginning of the feeder zone (not shown in the drawing) to the place of a short circuit at the end of the feeder zone (not shown in the drawing). To do this, form a circuit using electrical connectors 1 and 2 by connecting at the beginning of the air arrow zone the wires of the first contact suspension 3 with the wires of the third contact suspension 4 and connecting at the end of the air arrow zone the wires of the third contact suspension 4 with the wires of the second contact suspension 5, and for passing electric current along the formed circuit from the wires of three contact suspensions 3, 4 and 5, it is supplied with electric power from the power transformer of the traction substation of the contact network. The circuit formed from the wires of three contact pendants 3, 4 and 5 is a sequential electrical circuit from wires of the same cross section. Therefore, when electric power is supplied to this circuit from the power transformer of the traction substation of the contact network, the same current flows throughout the circuit, creating the same heating temperature for the wires of the contact suspensions and all elements of the air arrow.

In the drawing, the arrows show the direction of the current along the circuit formed in the zone of the air arrow by wires of contact suspensions.

Thus, the air arrow, which is part of the formed circuit, remains free of ice on the contact suspension, thereby providing direct contact of the current collector of the electric rolling stock with the elements of the air arrow, which allows electric trains to move at a design speed of up to 400 km / h. In addition, the implementation of the proposed method does not require an additional source of electricity, since the electric power for removing ice on the wires of the sections of the contact suspensions and the air arrow is used from the power transformer of the traction substation supplying the contact network of the feeder zones of the high-speed line.

Claims (1)

The method of removing ice from the wires of the contact suspension of the high-speed highway in the air arrow zone without crossing the wires, which consists in passing electric current through the wires of the contact suspension, characterized in that they pre-form a circuit using electrical connectors by connecting at the beginning of the air arrow zone the wires of the first contact suspension with wires of the third contact suspension and connections at the end of the air arrow zone of the wires of the third contact suspension with the wires of the second circuit kt suspension, and to pass electric current through the formed circuit from the wires of three contact pendants, electric energy is supplied to it from the power transformer of the traction substation of the contact network.

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