RU197584U1 - ARC CONTROL DEVICE DEVICE - Google Patents

Abstract

The utility model relates to electrical engineering, and more specifically, to transformer construction, and can find application in arc suppression reactors, in particular in control devices of these reactors. A useful model solves the problem of creating an arc control reactor control device, characterized by increased operational reliability due to the inclusion of a power source at the time of transition voltage through a zero value and turning off the power source at the moment the current passes through a zero value. To solve the problem in the control device of an arc suppression reactor having a control winding containing a neutral bias unit connected to a power source and containing a capacitive block, it is proposed, according to this utility model , execute the neutral bias unit in the form of a semistor, and turn it on in series with the capacitive unit and the control winding. 1 ill.

Description

The utility model relates to electrical engineering, and more specifically to transformer construction, and can find application in arc suppression reactors, in particular in control devices of these reactors.

A control device for an extinguishing reactor having a control winding, comprising a neutral bias unit, comprising a capacitive unit connected to a power source and a control winding [L. 1].

Described in [L. 1] the control device of an arc suppression reactor is characterized by insufficiently high operational reliability due to the inability to exclude power on at maximum voltage amplitude and power off at maximum current amplitude.

A useful model solves the problem of creating an arc suppression reactor control device that is devoid of the above-mentioned drawbacks and is characterized by increased operational reliability due to the inclusion of a power source at the time the voltage passes through a zero value and disconnection of the power source at the moment the current passes through a zero value.

To solve this problem, in the control device of an extinguishing reactor having a control winding containing a neutral bias unit connected to a power source and containing a capacitive block, it is proposed, according to this utility model, to perform a neutral bias block in the form of a seven-volt, and turn it on in series with the capacitive block and control winding.

The utility model is illustrated by the example of the drawing (Fig. 1), which schematically shows the inventive control device of an extinguishing reactor.

The extinguishing reactor 1 has a control winding 2.

The control device of the arc suppression reactor 1 contains a neutral bias unit 3 connected to a power source 4.

The neutral bias unit 3 contains a capacitive unit 5, made in the form of parallel-connected capacitors 6, the number of which is determined individually in each case and depends on the network parameters. In the FIG. 1 example, the number of capacitors 6 is three.

The neutral bias unit is made in the form of a seven-volt 7 connected in series with the capacitive block 5 and the control winding 2 of the arcing reactor 1.

The control device of an arc suppression reactor operates as follows.

Carry out an artificial neutral offset by turning on the neutral offset unit 3 as follows.

The neutral bias unit is connected in series to a seven-volt 7, a capacitive block 5 made in the form of capacitors 6, and a control winding 2 of the reactor 1 are supplied with voltage.

At the moment the voltage passes through the zero value (U = 0), they act as a control pulse and open the seven-volt 7, ensuring the passage of current through the series-connected elements of the circuit: capacitive block 5, winding 2 of the arcing reactor 1 and power supply 4.

Disabling the block offset neutral 3 is as follows.

At the time of the transition of the current through the zero value (I = 0), they act with a control pulse and close the seven-amp 7.

Thus, the exclusion of supplying the maximum voltage amplitude to the capacitors 6 of the capacitive block 5 is achieved, preventing a break in the maximum inductance current of the control winding 2 of the quenching reactor 1.

In accordance with the claimed technical solution, LLC “ENSONS” developed the technical documentation of the control device for an arc extinguishing reactor, made and tested a prototype of this device. Tests of the device have confirmed its operability and ample opportunities for practical use in the future with high operational reliability of the device.

Literature:

1. Technical description and operating instructions for an automatic control cabinet for arc-suppression reactors of the RZDPOMA type with microcontroller regulators MIRK-5 and built-in BSN, Moscow, 2016, p. with. 13, 34, www.mikroinginiring.ru.

Claims (1)

An arc extinguishing reactor control device having a control winding comprising a neutral bias unit connected to a power source and a control winding and comprising a capacitive block, characterized in that the neutral bias unit is made in the form of a seistor connected in series with a capacitive block and a control winding.

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