SU1153339A1 - Training system for operator of electric power line - Google Patents

Abstract

OPERATOR YINI ELECTRIC TRANSMITTERS, containing a block for changing the line parameters and dual-position switches, which are root and so that, in order to expand the didactic capabilities of the equipment, it introduces a delay unit, simulators of acoustic signals and the first meter The inputs of which are the inputs of the simulator, and the output is connected to the input of the block for changing the parameters of lines, the second multi-position switch, the outputs of which are the outputs of the simulator, and the input is connected to the output of the meter Parameters of the line parameters, the same inputs of the first, and the output of the second switches are interconnected, serially connected pulse generator, acoustic signal generator and the third multi-position switch, the outputs of which are connected to the acoustic signal distributors, the output of the pulse generator and the first and second outputs of the delay block are connected through the corresponding two (P positional switches to the input of the block changing the parameters of the line. ate Rd 00 oa with

Description

The invention relates to training tools and can be used both as part of educational complexes and autonomously to train operators to determine the nature and location of damage to cable or overhead power lines.

A simulator is known for teaching by the method of determining the nature and locations of damage to cable communication lines, consisting of measuring terminals, nodes for changing parameters of wires and lines, a set of resistances and inductances, and two-position single-pole switches Cl.

However, the well-known I simulator does not allow to teach methods for determining distance to the injury site.

The purpose of the invention is the expansion of digs; power supply operator’s simulator capabilities.

The goal is achieved by introducing a delay block, acoustic signal simulators and the first multi-position switch, whose inputs are the inputs of the simulator, the second multi-recognition switch, containing the block of changing the line parameters and two-position switches, and the second multi-recognition switch, the outputs of which are; The simulator outputs are the output of the simulator, and the input is connected to the unit's block to change the parameters of the first mixer and the first switch outputs are connected to each other, the pulse generator, the acoustic signal generator and the third multi-position switch, whose outputs are connected to the acoustic signal simulators, are output from the pulse generator and the first and second outputs of the delay unit are connected through the corresponding two-position switches to the input of the parameter change unit lines.

The drawing shows a structural diagram of a power line operator's simulator.

The simulator contains contacts 1 of the beginning of the line, which are the inputs of the device, and 2 ends of the line, which are the outputs of the device, three-way switches 3,4 and 5, two-way switches 6,7 and 8, block

9 changing line parameters, block

10 delay, generator II pulse driver 12 acoustic signals, simulators 13 acoustic signals.

The simulator allows you to simulate the work of determining the insulation resistance, capacitance, inductance and line resistance, to determine the nature of the damage to the core by the pulse method, to determine the distance to the damage site by the pulse method and the oscillatory discharge method, to determine the location of the damage by the acoustic method. Dp this

The simulator has the ability to simulate a line break between two cores, changing the ground to the fault, changing the insulation resistance and the core, capacitance and inductance of the line.

The determination of the insulation resistance, resistance, inductance and capacitance of the line is made with the contacts of switches 6.7 and 8 open, the switches 3 and 4 are set to the positions corresponding to the line contacts being checked; and in the node

Install the required capacitance, inductance, and resistance values. Moreover, to simulate the closure, the values of the corresponding resistances are reduced to a minimum, and to simulate an open circuit, the circuit is opened using the switch 3 or 4.

The impulse method of determining the nature of the damage and the distance to the damage site consists in sending a probe pulse to the line and receiving a pulse reflected from the damage site. The inverted reflected needle corresponds to 1 к 1 анию, and the straight line to the line break. The time delay between the probe probe and the reflected pulses corresponds to the time of the travel of the pulses / to the place of damage and back.

In the simulator, the delay of the probe pulse sent to check the 4th contact of group 1 or 2 is performed in block 10 of the controlled delay. A forward or inverted delayed pulse from the output of block 10 through closed contacts of switch 7 or 8 returns to the same contact of group 1 or 2.; The delay time in block 10 simulates

3

the transit time of the probe pulse along the line to the injury site and back. The closure of the contacts of the switches 7 or 8 simulates the required nature of the damage.

Determining the distance to the place of damage by the oscillatory discharge method is performed using a pulse generator P, the first pulse of which, passing through the closed contacts of switch 6 to the input of the unit to and to the tested contact of group 1 or 2, simulates the beginning of the oscillatory process that occurs in line at the time of breakdown of isolation. The time delay of the pulse in block 10 corresponds to the period of the oscillatory process, and therefore to twice the distance to the place of damage. The period of the pulse generator 11 is longer than the delay time.

The acoustic method of determining the location of the damage is to receive sound pick-up devices (sound signals) arising in

39

breakdown of insulation with pulses periodically sprinkled into the damaged line in order to detect and repair the damage.

The simulator uses an oscillator P to simulate the acoustic method, the pulses of which are fed to the shaper 12 of the acoustic signals, which generates the required electrical pulses and through the switch 5 transmits to one of the simulators 13 acoustic signals that generate sound signals that simulate the sound of the specimen. The acoustic signal simulators 13 are located at a distance from each other at the training site.

Thus, the proposed power line operator simulator provides training for a larger amount of work on checking power lines, compared to the prototype, without

high voltage applications.

Claims (1)

ELECTRIC TRANSMISSION OPERATOR SIMULATOR, containing a block for changing the parameters of the line and on / off switches, characterized in that, in order to expand the didactic capabilities of the tre-t presser, a delay block is introduced into it, simulators of acoustic signals and the first multi-position switch, the inputs of which are the inputs of the simulator, and the output connected to the input of the unit for changing the parameters of the lines, the second multi-position switch, the outputs of which are the outputs of the simulator, and the input is connected to the output of the unit for changing the param lines, the same inputs of the first, and the outputs of the second switch are interconnected, a pulse generator, an acoustic signal conditioner and a third multi-position switch, the outputs of which are connected to acoustic signal simulators, the output of the pulse generator and the first and second outputs of the delay unit are connected through the corresponding on / off switches to the input of the line parameter changing block. 1153339 2