SU148093A1 - A device for controlling the arrows of the relay centralization of small stations with local power of switch drives - Google Patents

Description

This invention relates to devices for controlling direct current switch actuators.

Devices for controlling the arrows of the relay centralization of small units with local power supply of analog electric drives by direct current through a four-wire circuit are known.

The present invention aims to control the indicated arrows through a two-wire circuit.

A distinctive feature of the proposed device is that to control the switch motor drive, a constant current provides an auxiliary polarized relay, connected in parallel with the start and control relays, normally closed contacts of which are B: connected to the lit circuit of the control relay, and normally open contacts into the starting relay circuit for switching the indicated circuits and for closing the auxiliary relay with the control current.

The drawing shows the electrical circuit of the device.

The device has an SUR control relay, an RPS starting relay, a control relay and an auxiliary polarized BP relay.

In turn and on the turn of the W of the hand grip (contact closure) of the CP, the switchboard relay of the SUR is energized, which turns on the auxiliary polarized BP relay, the latter turns on the RPS start relay. The SUR relay can be energized provided that the arrow is free from rolling stock and route closure (in the SUR relay's excitation circuit, the contacts of the SJR switch track relay and the SUR closing relay are closed).

With the initiation of the RPS start-up relay, its contacts are switched to the circuit of the auxiliary relay BP and the circuit of the electric motor of the switch machine drive SP closes.

AO 148093

When switching the contacts of the PSS starting relay, the polarity of the current in the secondary relay BP changes. The latter switches contacts, opens the excitation circuit of the RPS start relay.

To create a time delay for opening the winding of the SUR relay, it is shunted by capacitor C.

After translating the arrow and switching the contacts of the autoswitch of the drive and de-energizing the starting and control relays, a power supply circuit of the switch control relay C / CP, which excites, closes the circuit of one of its repeaters of the plus / minus position, turns on.

In the sections with steam, diesel, or electric direct current, the station battery with a voltage of 24 V is used to power the SUR, BP, PSR, PC.R and MK, P relays, and the BS switch-type battery with a voltage of 2V is used to power the CRS relay . Plus battery SAT marked letters SPB, minus SMB. The BS battery plus is marked RPB, minus RMB.

Subject invention

A device for controlling the arrows of the relay centralization of small stations with local power of switch actuators, comprising a control, start and control relay for switching on a DC-DC drive, characterized in that, in order to control and monitor the position of the arrow along a two-wire circuit, sections with direct current and alternating current, an auxiliary polarized relay is installed in this circuit parallel to the start and control relays, normally closed contacts of which are included in the power supply circuit controlling the relay and the normally open contacts tge - in the starting relay circuit for switching of said circuit, and closing the auxiliary relay control current