KR20030035436A - the apparatus of test salinity - Google Patents

Abstract

PURPOSE: A salinity measuring apparatus is provided to allow for ease of maintenance of power system, while preventing accidents caused due to flash over fault. CONSTITUTION: A salinity measuring apparatus comprises a digital converting controller(10) for converting the salinity and humidity into a digital signal; a computer(30) for analyzing and storing data through the signal output from the digital converting controller; and a display/operator(20) for applying power to the digital converting controller or changing the reference value for measurement. The digital converting controller includes a switch module power supply(1) and a DC power supply(2) for receiving AC power and supplying DC power; an amplifying power supply(3) for amplifying and outputting the DC power output from the DC power supply; a current transformer(4) for measuring current; an A/D converter(5) for converting the current measured by the current transformer into a digital signal; a DSP(6) for receiving signal from the A/D converter and processing the received signal into a digital signal; a ROM(11) connected to the DSP; a RAM(12); a D/A converter(13) connected to the DSP and which converts a digital signal into an analog signal and outputs the signal to the amplifying power supply; a transmitter/receiver(7) connected to the DSP; and an RS232 serial communication unit(8) for transmitting the signal output from the transmitter/receiver.

Description

Salinity measuring device {the apparatus of test salinity}

The present invention relates to a salinity measuring apparatus, and more specifically, to measure the amount of salinity in the region by measuring the amount of salinity attached to the insulator through a conductivity sensor for a certain period of time and maintenance of the power equipment through the detected salinity data It is about the salinity measuring device which is easy to prevent and prevents the flashover accident by the salt which causes a large blackout.

As an apparatus for measuring salinity, an apparatus for automatically measuring salinity contamination using a laser-prism sensor has been used.

The salt measuring device using the laser prism sensor detects the amount of salinity attached to the prism by using a change in the amount of received laser light injected into the prism. When water droplets are attached to the salt, it is difficult to detect the salt content.

Accident damages caused by conductive pollutants caused by extreme weather conditions and deepening of environmental pollution that contain large amounts of salt destroy the insulation of power facilities are increasing. Since most power plants and transmission facilities are located on the coast, there is an urgent need for a response to salt accidents. Salt damage is a breakdown of insulation when a large amount of salt is attached to the surface of the insulator, which is an insulator, and countermeasures are to use an appropriate number of insulators and remove the amount of salt attached before reaching a dangerous level. .

Until now, as a method of detecting the amount of salt attached to the insulator, a penetrating method is used to determine the state of insulator damage by collecting the salt attached to the bottom of the insulator with a brush and measuring the electrical conductivity of the aqueous solution. Since the error level is large depending on the person, there is a disadvantage that it is impossible to monitor the contamination status in real time.

The present invention is to solve such a conventional problem, the purpose is to automatically detect the salinity attached to the surface of the insulators in order to be able to know the value in real time, the conductivity sensor ( 15) When the automatic salinity measuring device is installed and the salinity is attached to the conductivity sensor 15, the current flowing through the conductivity sensor 15 increases as the humidity increases. This value is detected to determine the salinity of the insulator. It's about making it happen.

1 is a block diagram of a salinity measuring apparatus according to an embodiment of the present invention.

Code descriptions for the main parts of the drawings

1; switching module power supply 2; DC power supply

3 amplified power supply 4 current transformer

5; A / D converter 6; DSP

7; transmitter and receiver 8; serial communication

10; digital conversion controller 15; conductivity sensor

16; humidity sensor 20; indication / operator

30; computer

DETAILED DESCRIPTION Hereinafter, the most preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement the present invention. . Other objects, features, and operational advantages, including the purpose, working effects, and the like of the present invention will become more apparent from the description of the preferred embodiment.

For reference, the embodiments disclosed herein are only presented by selecting the most preferred examples to help those skilled in the art from the various possible examples, the technical spirit of the present invention is not necessarily limited or limited only by this embodiment, Various changes and modifications are possible within the scope without departing from the technical spirit of the present invention, as well as other equivalent embodiments will be found.

The present invention relates to a device for measuring the salinity attached to the insulator and the ambient humidity, as shown in Figure 1, the conductivity sensor 15 for detecting the magnitude of the current flowing when the salt is attached and outputs an electrical signal, Digital conversion controller 10 for converting the amount of salinity and humidity input from the humidity sensor 16 for sensing and outputting the ambient humidity to a constant digital signal, and the signal output from the digital conversion controller 10 The computer 30 for analyzing and storing data and the display / manipulator 20 for supplying power to the digital conversion controller 10 or for changing a measurement reference value are connected to each other.

The singer digital conversion controller 10 amplifies the DC power output from the switch module power supply 1 and the DC power supply 2 and the DC power supply 2 that are supplied with a constant DC power by receiving AC power. An amplified power supply 3 for outputting, a current transformer 4 for measuring current, and an A / D converter for converting and outputting the measured current value output from the current transformer 4 into a digital signal ( 5) a digital signal processor (hereinafter referred to as DSP 6) for inputting a signal output from the A / D converter 5 to process a digital signal, and connected to the DSP 6; ROM (11), RAM (12) for reading data stored therein and the DSP (6) is connected to the DSP (6) to convert the digital signal into an analog signal and output to the amplified power supply (3) A converter 13 and the DSP 6 are connected to And the transceiver 7 for transmitting and receiving, and has a configuration in which the RS232 serial communication device 8 for communication to the signal output from the transceiver (7) can be passed to the outside is connected.

The digital conversion controller 10 is connected to the input terminal of the current transformer 4 to the conductivity sensor 15 and the A / D converter 5 to detect the magnitude of the current flowing when the salt is attached and output it as an electrical signal. Is connected to the humidity sensor 16 for sensing and outputting the ambient humidity is connected.

The conductivity sensor 15 has a main electrode and an auxiliary electrode which maintains a constant interval so as to detect by leakage current when supplying power to the electrode by installing a plurality of thin electrode plates vertically vertically connected to measure the salinity It has a connected configuration.

Referring to the effects of the present invention configured as described in detail as follows.

The present invention relates to a device for measuring the salinity attached to the insulator and the ambient humidity, as shown in FIG. 1, after the specific person operates the computer 30 to perform initialization, the digital conversion controller 10 and the display / manipulator. Check if communication connection with (20) is made smoothly.

Thereafter, the digital conversion controller 10 receives the AC power and the switch module power supply 1 and the DC power supply 2 convert the AC power to the DC power so that the switch module power supply 1 is connected to the DSP 6. The DC power supply 2 is output to the amplified power supply (3).

The digital conversion controller 10 outputs to the DSP 6 according to the mode and function set in the display / manipulator 20.

At this time, the digital conversion controller 10 receives the salinity detection intensity and the detection value for the humidity degree through the conductivity sensor 15 and the humidity sensor 16, the salinity input from the conductivity sensor 15 by the salinity After measuring through the current transformer (4) to measure and input the value of the changing current is output to the DSP (6) through the A / D converter (5).

In the conductivity sensor 15, current does not flow even when power is supplied to the main electrode, but when salt is attached to the auxiliary electrode at a humidity of 60% or more, the current is increased while the magnitude of the current is output.

In addition, the A / D converter 5 converts the humidity value output from the humidity sensor 16 into a digital signal and outputs it to the DSP 6.

Here, the DSP 6 converts the information on the degree of salinity detection and the ambient humidity attached to the insulator surface into a constant digital signal and displays the completion of the detection on the display / operator 20 through the transceiver 7 or the RS232 serial communication unit. (8) to be able to analyze and store data from the computer (30).

In this way, the present invention can measure the amount of salinity in the region by measuring the amount of salinity attached to the insulator through the conductivity sensor for a certain period of time, and the salinity data is easy to maintain, and the large-scale blackout It has an effect that can prevent flashover accidents caused by causing salt.

Claims (3)

A digital conversion controller 10 for converting the measured salinity and humidity amount into a constant digital signal, a computer 30 for analyzing and storing data through a signal output from the digital conversion controller 10, and the digital Salinity measuring device is connected to the display / control unit 20 to operate to apply power to the conversion controller 10 or to change the measurement reference value. 2. The digital conversion controller (10) according to claim 1, wherein the digital conversion controller (10) outputs from a switch module power supply (1), a DC power supply (2), and a DC power supply (2) for receiving AC power and supplying a constant DC power. An amplified power supply (3) for amplifying and outputting a DC power source, a current transformer (4) for measuring current, and a value of the measured current output from the current transformer (4) by converting the digital signal into an output signal A / D converter 5, a DSP 6 for inputting a signal output from the A / D converter 5 to process digital signals, and data stored therein connected to the DSP 6 to read A ROM 11, a RAM 12, and a D / A converter 13 connected to the DSP 6 to convert a digital signal into an analog signal and output the analog signal to the amplified power supply 3; A transceiver 7 connected to the DSP 6 for transmitting and receiving data in an airless manner, and Receiver 7 RS232 serial communication communicator salinity measuring device is composed of (8) is connected to allow a signal to pass from the outside to output. The digital conversion controller 10 is connected to the input terminal of the current transformer 4, the conductivity sensor 15 for detecting the magnitude of the current flowing when the salt is attached and outputs an electrical signal, A / Salinity measurement device is connected to the D converter (5) is connected to the humidity sensor 16 for sensing and outputting the surrounding humidity.