KR102027743B1 - Integrated monitoring system for voltage and temperature of power cable joint point - Google Patents

Abstract

The present invention relates to an electricity supply and temperature integrated monitoring system of a power cable connection unit, and detects a voltage caused by an electric field generated when the power cable connection unit is energized using at least one integrated sensing module for power supply and temperature detection and the sensing module. And a temperature monitoring unit for detecting and displaying a temperature of the power cable connecting unit using the sensing module for displaying an energization state and outputting an alarm when a predetermined condition is reached.

Description

INTEGRATED MONITORING SYSTEM FOR VOLTAGE AND TEMPERATURE OF POWER CABLE JOINT POINT}

The present invention relates to a system for monitoring the electricity supply and temperature integration of a power cable connection, and more particularly, by inserting a voltage and temperature detection module between a power cable and a connection, and monitoring the electricity supply and temperature of the power cable connection. Of the power supply and the integrated temperature monitoring system of the power cable connection to prevent the failure of the fault as well as the spread of the accident.

In general, power cables are limited in length, so connections (eg cable plugs) are installed between the power cable and the power cable.

At this time, since the power cable maintains its quality in various ways in the manufacturing process, there is less chance of an accident, but the connection portion to which the power cable is connected is difficult to manage, and also defects may occur during construction. Many accidents are caused by deterioration.

Therefore, a number of methods for diagnosing such defects in power cables and connections have been developed in the past depending on the type of cable and the voltage class.

For example, in the related art, a thermal imaging camera is used to detect infrared rays emitted from an electric device and a cable connection part to diagnose local temperature and heat distribution, thereby diagnosing an abnormality of an electrical facility, or using an optical fiber having a temperature sensing function. Techniques for diagnosing the temperature of power cable connections have been developed. However, the method using the thermal imaging camera is used mainly for regular diagnosis because it is difficult to use for regular diagnosis, and the method using the optical fiber has a problem of high facility cost, easy repair and difficulty in connection and expansion.

In addition, as another conventional technique, there is a technique of diagnosing a temperature in a form in which a temperature sensor is attached to an outer surface of a power cable or a connecting portion and then wrapped using a heat shrink tube. In addition, since the shield is shielded with a shield wire and also has an outer skin, it is difficult to accurately detect the internal temperature before the power cable is deteriorated, thereby preventing a fire accident.

In addition, as another conventional technology, there is a technology for remotely managing and controlling the temperature data of the cable by sensing the temperature of the power cable by attaching a temperature sensor to the power cable in a parallel connection form. Since the temperature sensor is mounted, it is difficult to detect satisfactory temperature data in view of the fact that the ignition point of the power cable fire accident occurs between the conductor and the insulator in the cable.

As described above, the conventional technology for detecting the temperature of the power cable is to install a temperature sensor on the outside of the cable to diagnose the temperature, thereby preventing the spread of the accident by recognizing the failure of the power cable connection inside the connection point of the cable in advance. There is a problem that is difficult to achieve.

Due to these problems, thermo tape (ie, temperature tape) is attached to the power cable connection (e.g. cable plug) of indoor GIS (GAS INSULATED SWITCHGEAR) and periodically monitored by thermovision. It is a situation where failure cases are continuously occurring because it is difficult to detect and to take prompt action when overheating.

In addition, the above methods can measure the temperature of the power cable or the connection, but there is no device for simultaneously monitoring the energization state closely related to the temperature rise. That is, there is a problem in that it is not possible to check whether the cable is in an energized state (ie, live state).

Of course, the conventional LPS (Line Potential Signaler) device used to detect only the energized state of the power cable and display the energized on / off state of the power cable has been used. There is a problem falling.

For example, since the conventional LPS device utilizes a voltage source generated between the ground voltage and the current collector plate, it is difficult to clearly identify whether the LED is lighted because the input voltage is low so as not to clearly emit light. In addition, there are many failures due to vibration (eg, vibration generated when operating the device or GIS operation) or impact, and there are many special high-voltage lines in the field conditions and frequent opening and closing of breakers, so that surge and noise There are a lot of problems, but if the surge and noise flows into the LPS lead-in line, the circuit is damaged and a failure occurs, resulting in a decrease in reliability and an increase in maintenance costs.

Background art of the present invention is disclosed in Republic of Korea Patent No. 10-0754280 (2007.08.27. Registration, deterioration detection system and deterioration detection method of the power cable connection).

The present invention has been created to solve the above problems, before the deterioration of the power cable and the connection occurs to the visible state to deteriorate to a state that can detect the energized state and temperature in advance to prevent accidents through prompt measures The purpose is to provide an integrated power and temperature monitoring system for power cable connections.

In addition, the present invention by inserting a module for detecting voltage and temperature between the power cable and the connection part to monitor whether the power cable connection is live or not, so that the power cable connection of the power supply to prevent the failure of the power cable connection and accidents And to provide an integrated temperature monitoring system.

In addition, the present invention obtains the driving power from the power cable to emit a clear and stable high-brightness LED to display the energized state, and also by monitoring the energization and temperature by using an integrated module incorporating a ceramic electronic temperature sensor It is a further object to provide an integrated power and temperature monitoring system for power cable connections that can prevent accidents in advance.

In one embodiment, an electricity supply and temperature integrated monitoring system according to an aspect of the present invention includes: an integrated sensing module for detecting at least one electricity supply and temperature; An energization monitoring unit which detects a voltage caused by an electric field generated when an electric power cable connection unit is energized using the sensing module and displays an electric current state; And a temperature monitoring unit which detects and displays a temperature of the power cable connection unit using the sensing module and outputs an alarm when a predetermined condition is reached.

In the present invention, the electricity supply and temperature integrated monitoring system of the power cable connection unit, the electricity supply state and temperature of the power cable connection unit is detected and transmitted to an external remote monitoring computer or remote monitoring control system.

The temperature monitoring unit may include: an A / D converter for converting temperature information detected by the sensing module into a digital value; And a controller configured to calculate a temperature value using the temperature information converted into the digital value.

In the present invention, the controller collects the energized state and temperature information detected by the sensing module, and transmits the energized state and temperature information to an external remote monitoring computer or a remote monitoring control system through a specific communication interface. It is characterized by.

In the present invention, the specific communication interface is characterized in that it comprises a serial communication interface, or a USB (Universal Serial Bus) communication interface.

In the present invention, the constant sensing module is separately installed in the power cable connection to which each phase power is applied, and the energization monitoring unit is energized by the power cable connection unit to which each phase power is applied using the voltage detected through each sensing module. It is characterized by displaying the status separately.

In the present invention, the sensing module, the current collecting plate for securing the capacitance from the electric field generated around when the power cable connection is energized state and detects the voltage generated by the capacitance; And at least one temperature sensor mounted on the current collector plate at predetermined intervals and detecting a temperature of the contact portion.

In the present invention, the current collector plate is made of a non-ferrous metal material having a condenser function and deformation free to ensure a stable capacitance, double insulation treatment with polycarbonate for insulation reinforcement of the current collector plate and the temperature sensor. It features.

In the present invention, the sensing module further includes a lead for drawing the conduction state information and temperature information, the part connected to the sensing module of the lead is composed of an expandable cable that is easy to set and resistant to heat, The part connected to the terminal of the lead is characterized in that the solid metal welding is made.

In the present invention, the temperature sensor, a temperature sensor that decreases the resistance value when the temperature rises, the electronic laminated film type ceramic temperature sensor; characterized in that it comprises a.

In the present invention, the energization monitoring unit, the rectifying unit for rectifying by dividing the voltage detected by the sensing module; A voltage divider which divides and outputs the voltage received from the rectifier at a predetermined cycle; And an energization display unit which emits light by the voltage output from the voltage division unit and outputs the electricity.

In the present invention, the rectifying unit, the bridge diode for receiving the divided voltage and converting the DC power; A smoothing capacitor connected in parallel to an output terminal of the bridge diode to smooth the power output from the bridge diode; And a regulator for converting the smoothed power supply into a constant voltage.

,

)를 통해 출력되고, 상기 출력 포트(

,

)는 서로 상반된 출력 레벨을 갖는 것을 특징으로 한다.In the present invention, the voltage divider may include: a divider IC chip; And a capacitor connected to a specific port of the divider IC chip, wherein the voltage from the rectifier is divided at regular intervals by charging and discharging of the divider IC chip and the condenser, thereby specifying a specific output port of the divider IC chip. (

,

Output through the output port (

,

) Is characterized by having opposite output levels.

In one embodiment, the energization display unit includes at least one or more high-brightness light emitting diodes, and the light emitting diodes include a Surface Mount Device (SMD) type chip LED (Light Emitting Diode) lamp.

The present invention can prevent the failure of the power cable connection as well as the occurrence of an accident by integrally monitoring the live cable temperature and temperature of the power cable connection, and before the deterioration to the visible state due to deterioration of the power cable connection It is effective to detect the energized state and temperature in advance and prevent accidents through prompt measures.

1 is an exemplary view showing a power supply and temperature integrated monitoring system of the power cable connection unit according to an embodiment of the present invention.
Figure 2 is an exemplary view showing a schematic shape of the integrated sensing module for energizing and detecting the temperature according to an embodiment of the present invention.
Figure 3 is an exemplary view showing a schematic configuration of the energization monitoring unit in the electricity supply and temperature integrated monitoring system of the power cable connection unit according to an embodiment of the present invention.
4 is an exemplary circuit showing an equivalent circuit for explaining the temperature calculation operation of the control unit in FIG.
5 is an exemplary view showing a front operation panel of an electricity supply and temperature integrated monitoring system of a power cable connection unit according to an embodiment of the present invention.
6 is an exemplary view for explaining a method of actually applying the power supply and temperature integrated monitoring system of the power cable connection unit according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the power supply and temperature integrated monitoring system of the power cable connection according to the present invention.

In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator. Therefore, the definitions of these terms should be made based on the contents throughout the specification.

1 is an exemplary view showing a power supply and temperature integrated monitoring system of the power cable connection unit according to an embodiment of the present invention.

As shown in FIG. 1, the power supply and temperature integrated monitoring system of a power cable connection unit according to an embodiment of the present invention includes at least one integrated sensing module 100 for power supply and temperature detection (hereinafter, referred to as a sensing module). It detects the power supply and the temperature of the power cable connection unit (for example, cable plug) through, and the power supply and temperature integrated monitoring unit 400 for monitoring the power supply and temperature using the detected current and temperature information.

Hereinafter, the components of the energization and temperature integrated monitoring unit 400 will be described by dividing the energization monitoring unit 200 and the temperature monitoring unit 300.

However, the constituent means divided into the energization monitoring unit 200 and the temperature monitoring unit 300 are not necessarily used exclusively for the corresponding function, and some means 310 and 340 including the control unit 320 among the constituent means. Note that, 350, 360, and 370 may be commonly used in the energization monitoring unit 200 and the temperature monitoring unit 300.

The energization and temperature monitoring unit 400 detects and displays the energization state and temperature of the power cable connection unit by itself, and outputs an alarm when a predetermined alarm condition is reached. For example, the alarm may be output through display means or sound output means (not shown).

In addition, the power supply and temperature integrated monitoring unit 400 may detect the power supply monitoring information and temperature monitoring information and transmit it to an external remote monitoring computer 500 or a remote monitoring control system (eg, SCADA) (not shown).

The energization and temperature monitoring unit 400 is supplied with a driving power (eg, VCC = + 5V, GND = 0V) through the power supply unit 340.

A lead 120, 140 (see FIG. 2) drawn from the at least one sensing module 100 is connected to the terminal 310. Electric current monitoring information (ie, detection voltage information) and temperature monitoring information (ie, detection temperature information) are received from the sensing module 100 through the leads 120 and 140. The electricity supply monitoring information (ie, detection voltage information) is input to the electricity supply monitoring unit 200, and the temperature monitoring information (ie, detection temperature information) is input to the control unit 320. Of course, the control unit 320 may also collect the energization monitoring information.

The electricity monitoring unit 200 displays the electricity state of each phase by using the electricity monitoring information. That is, the energization state of the power cable connection part (for example, cable plug, see FIG. 6) to which each phase power is applied is displayed. Detailed configuration and operation of the energization monitoring unit 200 will be described with reference to FIG. 3.

The controller 320 calculates a temperature of a power cable connection unit (eg, a cable plug, see FIG. 6) to which phase power is applied using the temperature monitoring information.

The temperature calculation operation of the controller 320 will be described in detail with reference to FIG. 4.

The control unit 320 displays the detected temperature of each power cable connection unit on the temperature display unit 330.

The controller 320 outputs an alarm when the detected energized state and the temperature state become a predetermined alarm condition. The alarm condition may be set in advance through the mode setting unit 350.

The operation of the mode setting unit 350 will be described in detail with reference to FIG. 5.

The controller 320 outputs the detected energization state information and temperature information in a serial data format through a serial communication unit 322. The energization state information and temperature information output in the serial data format are converted into a data format suitable for universal serial bus (USB) communication through the USB-serial converter 360.

The energization state information and temperature information converted into a data format suitable for USB communication through the USB-serial converter 360 are transmitted to the computer 500 connected with the USB cable through the connector 370. If the energization and temperature integrated monitoring unit 400 and the computer 500 are connected by a communication interface method other than the USB cable, the converter may include a converter for converting the data into a data format corresponding to the corresponding communication interface method. .

Figure 2 is an exemplary view showing a schematic shape of the integrated sensing module for energizing and detecting the temperature according to an embodiment of the present invention.

As shown in FIG. 2, the integrated sensing module 100 for conducting electricity and detecting temperature according to an embodiment of the present invention detects a conduction state of a power cable connecting portion (or a power cable periphery), and the power cable connecting portion is Collecting plate 110 to secure the capacitance from the electric field (or induced current) generated in the energized state, and detect the voltage generated by the capacitance, mounted on the collector plate 110 at regular intervals At least one temperature sensor 130 for detecting a temperature of the contact portion, a lead 120 for extracting a capacitance (that is, a voltage) detected at the current collector plate 110, and the at least one And a lead 140 for individually or collectively drawing out the temperature values detected by the temperature sensor 130.

The sensing module 100 is attached to each power cable connection (eg, cable plug, see FIG. 6) to which power of each phase (eg, A, B, and C phases) is applied to adjust the voltage and temperature at each power cable connection. Detect.

The integrated sensing module 100 for energization and temperature detection is composed of a non-ferrous metal material free of deformation. In addition, the integrated sensing module 100 for conduction and temperature detection is subjected to double insulation treatment with polycarbonate (PC) for insulation reinforcement of the current collector plate 110 and the temperature sensor 130.

The current collector plate 110 is formed of an integrated current collector plate of a non-ferrous metal material having a capacitor function so as to secure stable capacitance. That is, the current collector 110 performs a voltage detection and a capacitor function.

The parts connected to the terminals 310 (refer to FIG. 1) of the leads 120 and 140 are firmly welded to metal, and the lead portions (parts connected to the sensing module) of the leads 120 and 140 are set. It consists of an easy and heat resistant expandable cable (not shown).

The temperature sensor 130 is an electronic laminated film type ceramic temperature sensor, and enables a modular configuration of stable characteristics and a compact structure. For example, the temperature sensor 130 may include a negative temperature coefficient thermistor (NTC), the resistance value of which greatly decreases as the temperature increases.

Figure 3 is an exemplary view showing a schematic configuration of the power monitoring unit in the power supply and temperature integrated monitoring system of the power cable connection unit according to an embodiment of the present invention.

As shown in FIG. 3, in the energization and temperature integrated monitoring system of the power cable connection unit according to an embodiment of the present invention, the energization monitoring unit 200 is a voltage detected from the integrated sensing module 100 for energization and temperature detection. The rectifier 210 divides the desired voltage and rectifies the voltage, the voltage divider 220 divides and outputs the voltage received from the rectifier 210 at regular intervals, and the voltage is divided and output from the voltage divider 220. And an electricity supply display unit 230 that emits light periodically to display an electricity state.

The voltage for which the divided voltage is desired is about 5 to 25 (V), but may be divided to other voltages. The voltage for which the divided voltage is desired may be divided through the capacitors C1 and C2 connected in series, and the voltage at both ends of one of the capacitors C2 becomes the desired divided voltage.

The rectifier 210 receives the divided voltage and converts AC power (AC power) into DC power (actually a pulse power supply) through bridge diodes D1 to D4, and then bridge diodes D1 to D4. Through the condenser (C3) connected in parallel to the output terminal of the) the pulsed power is smoothed and converted into a DC power (DC power). The DC power supply (DC power supply) is converted into a stable constant voltage (for example, 5V constant voltage) by the regulator Reg1 and output.

,

)를 통해 출력한다. 이때 상기 분주기 IC 칩(221)의 출력 포트(

,

)는 서로 상반된 출력 레벨을 갖는다. 즉, 일 측 출력 포트가 하이(High) 레벨이면 다른 출력 포트는 로우(Low) 레벨이 되는 것이다.The voltage divider 220 divides the output voltage of the rectifier 210 at regular intervals by charging and discharging the divider IC chip 221 and a capacitor C4 connected to the specific port thereof, so as to output a specific output port (

,

) At this time, the output port of the divider IC chip 221 (

,

) Have opposite output levels. That is, if one output port is at a high level, the other output port is at a low level.

The energization display unit 230 includes at least one high brightness light emitting diode (LED). The light emitting diode (LED) is preferably applied to a chip LED lamp of SMD (Surface Mount Device) type, but is not necessarily limited thereto.

)가 하이(High) 레벨일 경우에는 출력 포트(

)가 로우(Low) 레벨이 되어 발광다이오드(LED)를 턴온시키고, 반대로 출력 포트(

)가 로우(Low) 레벨일 경우에는 출력 포트(

)가 하이(High) 레벨이 되어 발광다이오드(LED)를 턴오프시킴으로써 상기 발광다이오드(LED)를 점멸시킨다. 즉, 상기 발광다이오드(LED)가 점멸되는 경우 상기 전력 케이블 접속부가 통전 상태임을 나타낸다.The energization display unit 230 is an output port of the divider IC chip 221 (

Output port () when the

) Becomes the low level, turning on the LED and vice versa.

) Is at the low level, the output port (

) Becomes a high level so that the light emitting diode LED is turned off to make the light emitting diode LED blink. That is, when the light emitting diode LED blinks, the power cable connection part is in an energized state.

4 is an exemplary diagram showing an equivalent circuit for explaining the temperature calculation operation of the controller in FIG. 2.

As shown in FIG. 4, the equivalent circuit has a resistor R and a temperature sensor Th connected in series, and a voltage Vin at both ends of the series connected resistor R and the temperature sensor Th 130. Assume that is supplied. The resistance value of the temperature sensor Th 130 varies according to the current temperature, and the voltage Vout across the temperature sensor Th 130 varies in proportion to the resistance value.

Accordingly, the A / D converter 321 reads the voltage Vout of the temperature sensor Th 130 and converts the voltage Vout into digital data. The controller 320 calculates a temperature value from the digital data converted by the A / D converter 321.

The controller 320 may be configured as a microprocessor (eg, a microcomputer) including an A / D converter 321. In addition, the controller 320 may be configured as one circuit board including means necessary for temperature detection.

The control unit 320 (or circuit board) may be configured in plural in correspondence with the number of sensing modules 100. In this case, each control unit 320 is set with a unique ID, and a higher configuration means (eg, a computer). The command signal coming from the) may be analyzed to transmit and receive current monitoring information and temperature monitoring information detected by the controller 320 having the corresponding ID.

The A / D converter 321 may be included in the control unit 320, but may be separately configured outside the control unit 320.

The A / D converter 321 may use a 12-bit resolution, but is not necessarily limited thereto.

Although not specifically described in the embodiment of the present invention, humidity or air pressure around the power cable connection unit may be detected and converted into digital values through the A / D converter 321. In this case, of course, the power supply and temperature integrated monitoring system according to the present invention may further include a humidity detection sensor (not shown) and an air pressure detection sensor (not shown).

As described above, the present invention mounts a plurality of electronic laminated film-type ceramic temperature sensors to the sensing module 100, calculates an average value of the temperatures output from the respective temperature sensors, and displays the sound or display method according to the calculated temperature ( For example, a warning light can be output.

For reference, the electronic laminated film type ceramic temperature sensor is very advantageous for temperature sensing because it reacts sensitively to temperature change. Especially, when the motor, the switch, or various power devices are operated, an open-circuit surge including excessive in-rush current and noise may be generated, which may cause damage to the circuit. ) May be suppressed.

5 is an exemplary view showing a front operation panel of a power supply and temperature integration monitoring system of the power cable connection unit according to an embodiment of the present invention.

As shown in Figure 5, the front operation panel of the power supply and temperature integrated monitoring system according to the present invention, the power supply display unit for displaying the power supply state of the power cable connecting portion is applied to each phase (eg, A, B, C phase) power 230, a switch unit 231 for variably adjusting the brightness of the energization display unit 230, and a temperature display unit displaying a temperature of a power cable connection unit to which power of each phase (for example, A, B, and C phases) is applied ( 330, and a mode setting unit 350 for setting whether to output an alarm, an alarm output method (eg, a sound, a display, etc.), and a temperature for outputting an alarm for each phase.

In addition, it may further include a display unit (Power) for displaying the power state of the electricity supply and temperature integrated monitoring system according to the present invention, and a test switch (TEST) for testing or resetting the operation state.

6 is an exemplary view for explaining a method of actually applying the power supply and temperature integrated monitoring system of the power cable connection unit according to an embodiment of the present invention.

As shown in FIG. 6, it is assumed that there is a cable plug connected to any power cable.

For example, the power cable may be a 25.8 kV GIS ultra high voltage power cable. However, the present invention is not necessarily limited to the power cable.

The sensing module 100 is wound around the outer circumference of the cable plug. In addition, the length of the sensing module 100 may be adjusted to correspond to the length of the outer circumference of the cable plug. The sensing module 100 may further include an adhesive member for easily attaching to the cable plug.

The voltage and temperature detected by the sensing module 100 are input to the energization and temperature integrated monitoring unit 400 according to the present invention through a lead.

In addition, the energization and temperature integrated monitoring unit 400 displays the energization state and temperature of the power cable connection unit to which power of each phase (eg, A, B, and C phases) is applied, and the detected energization state and temperature are preset conditions. An alarm is output when this occurs.

As described above, the power supply and temperature integrated monitoring system according to the present invention can compensate for the conventional problems and realize the weather resistance and stability at the same time, display the power supply status, have a quick response, ignore the lead resistance, shock The electronic temperature sensor based on ceramics resistant to excessive vibration can be used to detect the temperature. In addition, the detected energization monitoring information and temperature monitoring information may be applied to the interlock system.

In addition, the power supply and temperature integrated monitoring system according to the present invention can prevent damage to the circuit due to the mixing of noise and surge by applying a bridge voltage circuit for constant voltage in the power monitoring unit 200. In addition, the power supply and temperature integrated monitoring system according to the present invention is fixed to the circuit board with a hook-type fixing device (not shown), and by adopting a bi-type terminal block to form a terminal block in a locking structure to prevent damage to the circuit due to vibration can do.

Although the present invention has been described with reference to the embodiments illustrated in the drawings, this is merely exemplary, and various modifications and equivalent other embodiments are possible for those skilled in the art to which the art pertains. I will understand the point. Therefore, the technical protection scope of the present invention will be defined by the claims below.

100: integrated sensing module for energization and temperature detection
200: power monitoring unit 210: rectifier
220: voltage divider 221: divider IC chip
230: energization display unit 300: temperature monitoring unit
310: terminal 320: control unit
321: A / D converter 322: serial communication unit
330: temperature display unit 340: power supply unit
350: mode setting unit 360: USB-serial converter
370: connector 400: integrated power and temperature monitoring
500: computer

Claims (14)

An integrated sensing module for at least one energization and temperature detection;
An energization monitoring unit which detects a voltage caused by an electric field generated when an electric power cable connection unit is energized using the sensing module and displays an electric current state; And
And a temperature monitoring unit for detecting and displaying a temperature of the power cable connection unit using the sensing module and outputting an alarm when a predetermined condition is met.
The energization monitoring unit,
A rectifier for dividing and rectifying the voltage detected by the sensing module;
A voltage divider which divides and outputs the voltage received from the rectifier at a predetermined cycle; And
And an electricity supply display unit configured to display an electricity state by emitting light by the voltage output from the voltage division unit.
The voltage division unit,
Divider IC chip; And
And a capacitor connected to a specific port of the divider IC chip.
The voltage from the rectifier is divided at regular intervals by charge and discharge of the divider IC chip and the capacitor,
A specific output port of the divider IC chip (

,

Output through)
The output port (

,

), The power supply and the integrated temperature monitoring system of the power cable connection, characterized in that having a mutually opposite output level.
The method of claim 1,
The power supply and temperature integrated monitoring system of the power cable connection,
The electricity supply and temperature integrated monitoring system of the power cable connection unit characterized in that it detects the power supply state and temperature of the power cable connection unit and transmits to an external remote monitoring computer or a remote monitoring control system.
The method of claim 1, wherein the temperature monitoring unit,
An A / D converter converting the temperature information detected by the sensing module into a digital value; And
And a control unit for calculating a temperature value using the temperature information converted into the digital value.
The method of claim 3, wherein the control unit,
Collecting energization state and temperature information detected by the sensing module,
The electricity supply and temperature integrated monitoring system of the power cable connection, characterized in that for transmitting the current state and temperature information to a remote monitoring computer or a remote monitoring control system through a specific communication interface.
The method of claim 4, wherein the specific communication interface,
An integrated power and temperature monitoring system for a power cable connection comprising a serial communication interface or a universal serial bus (USB) communication interface.
The method of claim 1,
The sensing module is separately installed in the power cable connection unit to which each phase power is applied, and the energization monitoring unit separately displays the energization state of the power cable connection unit to which each phase power is applied using the voltage detected through each sensing module. An integrated power and temperature monitoring system for power cable connections.
The method of claim 1, wherein the sensing module,
A current collector plate which secures capacitance from an electric field generated in the surroundings when the power cable connection portion is in an energized state and detects a voltage generated by the capacitance; And
And at least one temperature sensor mounted on the current collector plate at predetermined intervals and detecting a temperature of a contact portion.
The method of claim 7, wherein
The current collector plate is made of a non-ferrous metal material having a condenser function and free of deformation so as to secure stable capacitance.
Power supply and temperature integrated monitoring system of the power cable connection, characterized in that the double insulation treatment with polycarbonate for the insulation reinforcement of the current collector and the temperature sensor.
The method of claim 7, wherein the sensing module,
And a lead for drawing the energization state information and the temperature information.
The part connected to the sensing module of the lead is composed of an expandable cable that is easy to set and resistant to heat, and the part connected to the terminal of the lead is made of solid metal welding, wherein the power cable connection unit conducts and monitors the integrated temperature system.
The method of claim 7, wherein the temperature sensor,
A temperature sensor whose resistance decreases as temperature rises.
And an electric laminated film type ceramic temperature sensor.
delete The method of claim 1, wherein the rectifying unit,
A bridge diode which receives the divided voltage and converts the voltage into a DC power source;
A smoothing capacitor connected in parallel to an output terminal of the bridge diode to smooth the power output from the bridge diode; And
And a regulator for converting the smoothed power supply into a constant voltage.
delete The method of claim 1, wherein the energization display unit,
At least one high brightness light emitting diode;
The light emitting diodes are SMD (Surface Mount Device) type chip LED (Light Emitting Diode) lamps; power supply and connection of the power cable connection monitoring system comprising a.

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