RU221108U1 - Device for checking and adjusting the brake delay boards and compressor start delay relays installed on AC electric trains - Google Patents

Abstract

The utility model relates to the field of maintenance of railway rolling stock equipment, namely to checking and adjusting the braking delay boards and the compressor start delay relay for electric trains of the ED9T and ED9M series. The technical result of the claimed utility model is a change in the technology for checking the serviceability of the brake delay boards and compressor start delay relays, by checking them on the device before installation on an electric train and before testing the electric train under contact line voltage. A device for checking and adjusting the braking delay boards and compressor start delay relays installed on AC electric trains, containing an electromagnetic intermediate relay, which is connected in series with the power driver through two switching diodes, and characterized in that the response time of the electromagnetic intermediate relay depends on the adjustment of the one being tested an electrical appliance that is connected to the power driver through an electric key that opens the electrical circuit.

Description

The utility model relates to the field of maintenance of railway rolling stock equipment, namely to checking and adjusting the braking delay boards and compressor start delay relays for AC electric trains of the ED9T and ED9M series (hereinafter referred to as the electrical devices being tested) using a power driver, an electrical switch, and two switching diodes and an electromagnetic intermediate relay, depending on the shutdown time of which the equipment under test is configured.

The following technical solutions are known from the prior art.

There is a known method for diagnosing the technical condition of the auto-braking system of the electric section of motor-car rolling stock (RU 2457966 C1, G01M 17/08, publication date 08/10/2012), in which the simultaneous measurement of voltage signals in the electrical control circuits of the electric section is carried out using an automatic diagnostic system. The novelty of this method lies in the fact that simultaneously measurements and automatic comparison with the standard of 9 specified parameters are carried out and information is provided to the operator online.

The disadvantage of this method in the patent in question is the inability to detect violations in the operation of the electrodynamic braking system due to incorrectly adjusted braking delay boards and the compressor start delay relay.

There is a known stand for diagnosing and studying a microprocessor control system for an electric locomotive (RU 2400794 C1, G05B 32/02, publication date 09/27/2010), in which the diagnosis of microprocessor control systems for electric rolling stock of alternating current is carried out using an industrial computer. The novelty of this stand lies in the available up to 20 free slots, into which standard adapters from the set are inserted and allow you to simulate almost all the necessary signals for diagnostics.

The disadvantage of this method in the patent in question is the significant cost of manufacturing the stand due to the additional use of an industrial computer with additional slots.

The technical result of the claimed utility model is a change in the technology for checking the serviceability of the brake delay boards and compressor start delay relays, by checking them on the device before installation on an electric train and before testing the electric train under contact line voltage.

The technical result is achieved due to the fact that a device for testing and adjusting the devices being tested, consisting of a power driver that converts the 220 V alternating voltage supplied to the device into a direct voltage of 110 V and supplies it through an electrical switch, the device being tested, to an electromagnetic intermediate relay, which with its contacts closes the feed circuit and an electrical circuit is formed in the opposite direction, passing from the power driver, through the switching diodes, an electromagnetic intermediate relay and then to the device being tested. After turning off the electrical switch and opening the electrical circuit, the electromagnetic intermediate relay remains energized for 1-10 seconds, depending on the setting of the device under test. Time is measured from the moment the electrical circuit opens until the contacts of the electromagnetic intermediate relay are de-energized.

The claimed utility model is illustrated by a drawing, which shows the following:

power driver 1 - an electronic device designed to convert 220 V AC electrical signals into 110 V DC signals;

electrical switch 2 - a device designed to open the electrical circuit through which voltage is supplied from the power driver 1 to the device under test - 5;

switching diodes 3 - an electronic component that transmits electrical voltage in only one direction, designed to prevent the phenomenon of switching (the occurrence of an electric arc on the contacts of an intermediate electromagnetic relay).

The installation of two diodes in series was carried out in order to simulate the conditions for connecting the electrical brake control circuit on AC electric trains of the ED9M and ED9T series, in accordance with the electrical circuit of electro-pneumatic braking of electric trains of the ED9T and ED9M series.

Intermediate electromagnetic relay 4 is an electronic component that is designed to automate the closing or opening of an electrical circuit.

Device under test 5 - braking delay board type RVT-1,2,3 or braking delay relay type RVK is designed to open the electrical brake control circuit after 3-5 seconds from the moment the electrical circuit is turned off.

A device for testing and adjusting the braking delay boards and the compressor start delay relay installed on AC electric trains of the ED9T and ED9M series, designed to test the functionality of the tested devices 5, before installation on the electric train and before testing the electric train under contact line voltage, consists of a power driver 1 that converts the voltage alternating current 220 V DC voltage 110 V, supplied to the electrical switch 2, which opens the created electrical circuit and then, thanks to the operation of the devices under test 5, performing the functions of a time relay through switching diodes 3, the intermediate electromagnetic relay 4 remains with the contacts on for 1-10 seconds , depending on the settings of the device being tested 5.

To ensure high-quality repairs of AC electric trains in compliance with downtime standards, it is necessary to install serviceable and adjusted equipment. The inventive device makes it possible to check and adjust the electrical equipment being tested before installation on an electric train and before testing the electric train under contact line voltage. Previously, the braking delay boards and compressor start delay relays were installed from the transition stock, and, if necessary, adjustments were made directly on the electric train or replaced with other similar electrical equipment.

To check and configure the electrical device under test 5 in the device for checking and adjusting the brake delay boards and the compressor start delay relay installed on AC electric trains of the ED9T and ED9M series, the electrical device under test 5 is connected, electrical voltage is supplied by turning on the electric switch 2 to activate the electromagnetic intermediate relay 4 and then opening the formed circuit by turning off the electrical switch 2, then, based on the time of opening the contacts of the electromagnetic intermediate relay 4, the adjustment state of the electrical device being tested 5 is determined.

Claims (1)

A device for checking and adjusting the braking delay boards and compressor start delay relays installed on AC electric trains, containing an electromagnetic intermediate relay, which is connected in series with the power driver through two switching diodes, and characterized in that the response time of the electromagnetic intermediate relay depends on the adjustment of the one being tested an electrical appliance that is connected to a power driver through an electric key that opens the electrical circuit.