Improving methods and technical means of indicating the presence of operating voltage in disconnected sections of the contact network
Abstract
Improving methods and technical means of indicating the presence of operating voltage in disconnected sections of the contact network
Incoming article date: 15.04.2024A method is proposed for non-contact indication of the presence of operating voltage in disconnected sections of an alternating current contact network, based on the properties of liquid crystals and the effect of electrical influences. A procedure is given for selecting voltage indicator parameters when used on single-track sections of a traction network. The possibility of using sign-synthesizing liquid crystal indicators to create contactless indicators without an internal power source to indicate the presence of operating voltage in sections of the contact network is shown.
Keywords: AC contact network, single-track section, disconnected section, operating voltage, non-contact indication, liquid crystal indicator, properties, equivalent circuit, selection of parameters