SU516119A1 - Intermediate Relay - Google Patents

Description

one

The invention relates to the field of relay protection, automation, remote control and communication.

When setting up remote PO-220 kV circuits, it is necessary to adjust the contacts so that the switching of the corresponding pairs takes place without breaking circuit 1. This requires special training of personnel. When performing a remote start of the transmitter on the opposite end of the line, two intermediate relays are necessary in the filter directional direction: one is triggered without time delay, the second is triggered by time delay due to the action of short-circuited coils installed on the magnetic core 2.

As a rule, inter-relays with the same structure as the RES14 3 relay are used in these devices.

The purpose of the invention is to extend the functionality of the intermediate relay by providing different response times for weaning individual contact gruses.

For this, the core is made with a generic hole, and magneto-mounting contacts installed in the specified hole are used as part of the contact groups.

Relay circuit is shown in the drawing.

The relay consists of coils 1, mounted on the magnetic circuit 2. Copper washers (turns) 3 provide the operation of the main contacts 4 with a time delay. A magnetically controlled contact 5 is embedded in the coil 1, which is connected by leads 6 to an external circuit.

When the relay is energized, the magnetic flux of the coil 1 triggers the magneto-controlled contacts 5, and the resulting magnetic flux of the magnetic circuit 2 increases slowly, as the counter current of the short coils (washers) 3 acts, and the co-tacts 4 close with time delay.

Claims (1)

Invention Formula An intermediate relay containing a base, measles, a core with a control winding and short-circuited coils and contact groups, characterized in that, in order to extend the functionality by providing different times of response and release of individual contact groups, the core is made with a longitudinal hole, and as parts of co-tact groups are applied magnetic contacts installed in the specified hole. Sources of Information taken into account in the examination: 1 Handbook of relay protection. Ed. M. A. Berkovich, SEI, 1963, p. 278. 5 2 Chernobrovs N. V. Relein protection. M., “Energie, 1966, p. 450. 3 Vitenberg MI. Calculation of electromagnetic relays. M., “Energie, 1966, p. 44, fig. 1 - 19.