SU27092A1 - Device for controlling electrical centralized switches - Google Patents

Description

In existing systems, electric. In order to centralize the arrows and signals, two types of electrical control of the arrows are used: continuous, in which the control current constantly passes through the contacts of the switch actuators and through the windings of the control electromagnet, and dynamic, in which the control of the translation of the arrow is complete at the end of the transfer, when the engine operates as generator, sending for a short time the current in the control electromagnet. In the first method, there is a relatively significant energy consumption for control, which is considered in the absence of cheap power sources. The second method has the disadvantage that it controls the device only during the switch-over period, if the arrow comes in trouble when it is in a calm state, then this circumstance in the control device does not reflect, which does not provide security.

The proposed device, while maintaining the advantages of continuous contact and without the disadvantages of dynamic, aims to significantly reduce the energy consumption for control.

In FIG. Figure 1 shows schematically a proposed device for controlling the position of an arrow; FIG. 2- the same with a device for indicating the state of the arrow.

The BR control relay, polarized or non-polarized (indifferent), turns on (Fig. 1) through wires I and 2 through normally closed contacts A and D on the trip handles and sequentially through the extension contact K, normally open and controlled by the duty agent ; Circuit 2, which contains the indicated contacts K, A, G, is normally open and shunted by circuit 3, which has normally open contacts AI and PI on the same routing handles. There is no normal current in the control relay. By closing the button with contact L, the attendant always has the opportunity to check the status of the arrow with unidentified routes. When one of the routes into which this arrow enters is installed, circuit 2 will be broken, but a current circuit will be installed along wire 3 through one of the contacts of the routeing handles (X Pj, etc.); since the open signal circuit is conducted through the contact of a control relay closed when it is pulled

if the arrow is defective, the signal will not open. The monitoring of the state as well as the position of the arrow is carried out according to the scheme shown in FIG. 2. If the route is not set and the additional button / Ci is pressed, corresponding to the button K of FIG. 1, the excitation circuit of the relay / CP closes. Exciting, the CU switches the contact controlled by it //, as a result of which, if the arrow is properly compiled, the current passes through the wire 5 and the Bii indicator lamp lights up, but if the KR relay does not become energized due to the arrow’s malfunction, then the contact B. does not switch, the lamp 5 does not the ringing sound signal included in the wire 4 will ring. At the same time, over the wire 6, depending on the position of the switch knob (contacts P-right and L-left), and when using the polarized relay KR and depending on the actual position arrows (contact T), for oraets one of BZ lamps or indicate the position of the arrow.

The subject matter of the invention.

1. A device for controlling electric centralized arrows through an automatic switch on a switch actuator, characterized by the use of parallel and normally open circuits for a current flowing through a control relay, of which one circuit 2 serves to check the state of the arrow with unassigned routes and has an auxiliary contact-K, closed with a button, pedal, etc., and sequentially connected closed contacts A, P on the trip handles, and the other circuit 3 serves to control the Translated arrow and has connected in parallel to each other open contacts A, G on the route handles. 2. With the device according to claim 1, use of acoustic and optical indicators, which are switched by the control relay, so that when the arrow is in good condition, the optical indicator comes into effect, and if it is faulty, the acoustic indicator.

fig 1