KR101771551B1 - terminal block for switch panel and dstribution panel - Google Patents

terminal block for switch panel and dstribution panel Download PDF

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Publication number
KR101771551B1
KR101771551B1 KR1020150097726A KR20150097726A KR101771551B1 KR 101771551 B1 KR101771551 B1 KR 101771551B1 KR 1020150097726 A KR1020150097726 A KR 1020150097726A KR 20150097726 A KR20150097726 A KR 20150097726A KR 101771551 B1 KR101771551 B1 KR 101771551B1
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KR
South Korea
Prior art keywords
surge
case
arc
bimetal
terminal block
Prior art date
Application number
KR1020150097726A
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Korean (ko)
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KR20170006696A (en
Inventor
박기주
라경식
이광진
Original Assignee
주식회사 에너솔라
박기주
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Application filed by 주식회사 에너솔라, 박기주 filed Critical 주식회사 에너솔라
Priority to KR1020150097726A priority Critical patent/KR101771551B1/en
Publication of KR20170006696A publication Critical patent/KR20170006696A/en
Application granted granted Critical
Publication of KR101771551B1 publication Critical patent/KR101771551B1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/025—Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • G01R31/1218—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing using optical methods; using charged particle, e.g. electron, beams or X-rays
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
    • G01R31/1236—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of surge arresters
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/02—Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/22—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)

Abstract

A bimetal, an arc detector, and a surge protector are incorporated to detect short circuit, overload, short circuit, short circuit, faulty contact, and spark, so that the apparatus can be quickly protected against fire through diagnosis of deterioration and surge protection. A terminal board for a distribution board and a distribution board, comprising: a case made of an insulating material; a metal connecting member mounted on the inside of the case and having a connecting hole for connecting a power cable; A bimetal which is formed at a lower end of the connecting member inside the case and operates when the temperature of the connecting member rises to a predetermined temperature or more; A surge protector for protecting the facility from an internal open / close surge and an external surge; An arc detector which is formed on a side of the upper side and detects an arc around the arc including the connecting member, and a surge protector provided on one side of the case for receiving the surge signal and arc signal from the surge protector and the arc detector, And a control unit for transmitting the control signal to the control unit.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal block for a switch panel and a switchboard,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal block for a distribution board and an electric distribution board, and more particularly to a terminal block for a distribution board and an electric distribution board having a deterioration diagnosis function and a surge protection function.

In general, a distribution board is a branch circuit that branches power to be supplied to a building such as a lamp socket, monitors a voltage state supplied to the load, and disconnects the breaker when an abnormality occurs due to overload, It is assembled and assembled. This serves as an inlet for the electric wire and prevents exposure of the line connected to the breaker and the switch to prevent electric accidents.

In addition, a terminal block is used for various electric devices including an automatic controller, an industrial device, or an electric switchboard, and a relay terminal block is used for an electric device. The relay terminal block includes a terminal block block having a rectangular block shape, a plurality of relays provided at the center of the top surface of the terminal block block, and a plurality of connection terminals provided in front of the terminal block block so as to be electrically conductive with the relay. The connection terminal is composed of a positive terminal for connecting an electric cable of a positive electrode, a negative terminal for connecting an electric cable of a negative electrode, a common terminal for connecting an electric cable of a common electrode, and a relay terminal for connecting a relay electric cable.

According to such a relay terminal block, each connection terminal is provided with a bolt, and the end of the electric cable is fixed to the connection terminal by the bolt.

Fig. 1 is a perspective view schematically showing a terminal block according to the prior art, and Fig. 2 is an entire perspective view showing a terminal block according to the prior art.

As shown in Figs. 1 and 2, the conventional terminal block has an electrically conductive metal material having a connection hole 90 for connecting the case 10 of the synthetic resin component and the terminal 50 of both cables And a spring washer 30 and a flat washer 31 for preventing an incorrect tightening of the fixing bolt 40. The spring washer 30 and the flat washer 31 are used to fix the connection terminal 20 and the cable terminal 50, , When the cable terminal 50 is connected to both the fixing bolts 40, if the correct torque can not be tightened, a connection loosening phenomenon occurs in which the connection bolt gradually loosens due to the heat cycle generated by the increase or decrease of vibration or current in the switchboard As a result, heat is generated between the cable terminal 50 and the terminal block connecting portion 20, leading to a fatal electrical fire accident.

Such an electric fire accident is one of the most frequent cause of electric fire accident in the switchgear. Also, in case of existing terminal block, the manager has to measure the temperature of the terminal block by using expensive non-contact type thermometer from time to time to check the abnormal heating state as described above, and it takes much time and effort to measure every terminal block in the switchboard .

In addition, in order to measure the temperature of each terminal block, there is a risk of electric shock due to entry into the switchboard in which electric current of a very high risk of electric shock accident is energized.

In order to solve this problem, the patent application 10-2005-0030507 proposes a bimetal in each power cable and terminal connection part, transmits an abnormal signal to an RF transmitter, receives the signal through an RF receiver, Since the computer is patented to generate an alarm, it is necessary to use expensive RF receiver and RF transmitter in order to realize it.

In addition, when the RF transmitter and the RF receiver fail, there is no way to visually check for abnormal heat generation. In addition, wires must be connected to each terminal block from each terminal block to the RF transmitter, There is a drawback that it is difficult.

An object of the present invention is to solve the above problems and to provide a bimetal, an arc detector and a surge protector so as to detect a short circuit, an overload, a short circuit, a short circuit, And to provide a terminal block for an electric distribution panel and a distribution panel for protecting the facility.

According to an aspect of the present invention, there is provided a terminal block for a distribution board and an electrical switchboard comprising: a case made of an insulating material; a metallic connection member having a connection hole for connecting a power cable, A fixing bolt fixed to the connection hole of the connection member to fix the power cable, a bimetal disposed at the lower end of the connection member inside the case and operated when the temperature of the connection member rises to a predetermined temperature or more, A surge protector formed at the lower end of the bimetal and grounded at one side to protect the installation from internal open / close surge and external surge; an arc detector formed at the upper side of the case to sense the surrounding arc including the connection member; A surge protector and an arc detector for generating a surge signal and an arc And a controller for controlling the surge protector and transmitting the surge protector to an administrator.

The terminal boards for distribution boards and switchboards according to the present invention have the following effects.

First, by forming the bimetal at the lower end of the connection terminal connected to the external cable, deterioration due to abnormal heat generation of the connection terminal itself can be detected, so that it can be quickly responded to fire or the like.

Second, by attaching an arc detector to the upper part of the case, it is possible to quickly respond to fire due to contact failure, short circuit, overload, short circuit (ground fault), disconnection, spark and so on.

Third, by incorporating a surge protector or surge detection sensor, it is possible to protect the facility from internal open / close surge and external surge.

1 is a perspective view schematically showing a terminal block according to the prior art;
Fig. 2 is a perspective view showing the terminal block according to the prior art.
3 is a plan view showing a terminal block for a distribution board and an electric distribution board according to the present invention.
Fig. 4 is a side view showing the distribution board and the terminal board for the switchboard of Fig. 3
5 is a configuration diagram showing the configuration of a terminal block for a distribution board and an electric distribution board according to the present invention

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. It should be noted that the drawings denoted by the same reference numerals in the drawings denote the same reference numerals whenever possible, in other drawings.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. And certain features shown in the drawings are to be enlarged or reduced or simplified for ease of explanation, and the drawings and their components are not necessarily drawn to scale. However, those skilled in the art will readily understand these details.

Fig. 3 is a plan view showing a terminal block for a distribution board and an electric distribution board according to the present invention, and Fig. 4 is a side view showing a terminal block for a distribution board and an electric distribution board in Fig.

3 and 4, the terminal block 100 for a distribution board and a switchboard according to the present invention includes a case 110 made of an insulating material made of synthetic resin, A fixing bolt 130 fastened to the connection hole of the connection member 120 to fix the power cable, A bimetal 140 formed at a lower end of the connecting member 120 inside the case 110 and operated when the temperature of the connecting member 120 rises to a predetermined temperature or more; A surge protector 150 formed on the upper surface of the case 110 to protect the apparatus from external surge and an opening / closing surge inside the case 110; Arc detector 160, A control unit 170 formed at one side of the case 110 to receive the surge signal and the arc signal from the surge protector 150 and the arc detector 160 to control the surge protector 150, .

The case 110 has a body portion 111 on which the connecting member 120 and the bimetal 140 are seated and a case 110 that protrudes higher than the body portion 111 at both ends of the body portion 111 And first and second vertical parts 112 and 113 to which the arc detector 160 is attached.

The controller 170 is installed in the first vertical portion 112 or the second vertical portion 113. The vertical portion in which the controller 170 is installed is wider than other vertical portions.

In the embodiment of the present invention, the arc detector 160 is formed in the first vertical part 112 and the controller 170 is embedded in the second vertical part 113. When the size (length) of the terminal block is large, an arc detector 160 is formed on each of the first vertical part 112 and the second vertical part 113, and a controller 170 ).

The second vertical portion 113 includes a ground terminal 180. The second vertical portion 113 protects the stable operation and life of the electrical equipment from electrical accidents such as lightning, surge, static electricity, noise, It is installed for.

The connection hole has a screw-type female thread on the inner surface, and the fixing bolt 130 is formed on the outer surface with a bolt having a male thread corresponding to the female thread.

And may be fixed by passing through a connection hole formed in the connection member 120. [

Meanwhile, a spring washer and a flat washer may be additionally provided to prevent the fixing bolt 130 and the connecting member 120 from being incorrectly tightened.

The bimetal 140 is formed by superimposing two kinds of thin metals having different degrees of expansion and contraction according to a change in a thermal expansion coefficient, that is, a change in temperature. As the temperature increases, the bimetal 140 bends toward the opposite side while the larger thermal expansion coefficient expands more . And when the temperature drops again, it returns to its original state.

On the other hand, an alloy of nickel (Ni) and iron (Fe) is used as a metal which does not swell well, and a metal which is swollen well is an alloy of nickel, manganese, iron, an alloy of nickel, molybdenum, iron, (Cu) alloy is used.

The bimetal 140 may constitute a device for closing or opening the switch by using the bending property according to the temperature, and the bimetal 140 itself may be used as a switch to control the circuit.

Therefore, in the present invention, when the temperature of the connection member 120 rises to a predetermined temperature by using the property of the bimetal 140 as described above, the switch operation is performed, thereby preventing a fire or the like, have.

The surge protector 150 is a device for preventing the equipment from being burned down and maintaining normal operation by restricting the surge protector 150 below the withstand voltage of the equipment in the event of an abnormal overvoltage flowing through a wire or an electric circuit, However, the present invention is not limited to this, and a surge detection sensor connected to each of the connection terminals 120 for detecting a surge signal may be attached to the case 110 and used.

The arc detector 160 is formed by attaching an optical sensor to at least one upper end of the case 110. The arc detector 160 may be disposed at a portion of the connection terminal 120 to which the fixing bolt 130 is coupled through the arc detector 160 And detects a spark that occurs.

The optical sensor is mounted on the first vertical part 112 or the second vertical part 113 of the case 110 to sense light generated in the terminal block. This light may be light caused by an arc signal generated inside the terminal block or may be ambient light from the outside of the terminal block.

The optical sensor senses light generated inside or outside the terminal block and supplies the light to the controller 170.

The genital control unit 170 analyzes the light sensing signal from the optical sensor to determine whether the light is actually light generated by the arc signal or ambient light.

When the arc signal is generated as a result of the determination by the controller 170, an arc signal generation history related to the generation time, size, frequency, and frequency of the arc signal is stored and managed.

If the risk of the arc signal exceeds the preset alarm level in consideration of the generation time, size, frequency, frequency, etc. of the arc signal, the controller 170 transmits the arc signal to an external manager, So that appropriate measures can be taken.

For example, the administrator of the distribution board and the switchboard provided with the terminal block can control the distribution board or the switchboard where the arc signal is generated through the HMI (Human Machine Interface).

The arc signal is detected and analyzed at the terminal block, and it is possible to determine whether there is an abnormality of the switchboard or the distribution board, that is, whether an arc signal is generated or not, through information displayed through a monitoring unit (not shown) attached to the distribution board or the switchboard have.

The monitoring unit may display a screen in a touch screen form so that the operator can confirm the presence or absence of an arc signal and determine the risk of occurrence of an arc signal through the change of color and the number of flickering by attaching an LED lamp such as a condition lamp.

At both ends of the case 110, terminal block mounting portions 190 are formed so as to be installed laterally in the high / low voltage distribution boards, the distribution boards, the motor control boards, and the automatic control boards.

Here, it is preferable that the distribution panel is a device for interrupting power supply when a wiring for supplying power to a building or a household is provided, and sudden overflow or leakage current is generated outdoors, .

5 is a block diagram showing the configuration of a terminal block for a distribution board and an electric distribution board according to the present invention.

5, the terminal block 100 for a distribution board and an electric switchboard according to the present invention includes a connection member 120 to which a power source is input, a bimetal 140 (not shown) connected to the connection member 120, An arc detector 160 for detecting an arc signal, a surge protector 150 for protecting the apparatus from internal or external surges, an arc signal and surge of the arc detector 160 and the surge protector 150, And a controller 170 for receiving and analyzing the signals and transmitting the signals to the control or the outside.

The terminal boards for distribution boards and switchboards according to the present invention have been described above. It will be understood by those skilled in the art that the technical features of the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

It is therefore to be understood that the embodiments described above are intended to be illustrative and not restrictive in all aspects and that the scope of the invention is indicated by the appended claims rather than the foregoing description, And all equivalents and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

110: Case 120: Connecting member
130: Fixing bolt 140: Bimetal
150: surge protector 160: arc detector
170: Control unit 180: Ground-dedicated terminal
190: Terminal block mounting

Claims (5)

A case made of an insulating material,
A connecting member made of metal and having a connecting hole for connecting the power cable,
A fixing bolt fastened to the connection hole of the connection member to fix the power cable,
A bimetal disposed at a lower end of a connection member inside the case and operated when a temperature of the connection member rises above a predetermined temperature;
A surge protector formed at the lower end of the bimetal inside the case and grounded at one side to protect the installation from internal open / close surge and external surge;
An arc detector formed on an upper side of the case side and made of an optical sensor for detecting an arc around the connection member,
And a controller configured on one side of the case to receive the surge signal and the arc signal from the surge protector and the arc detector and to control the surge protector and deliver it to the manager,
A ground-only terminal is formed at one end of the case,
Wherein the case comprises a connecting member, a body portion on which the bimetal is mounted, and first and second vertical portions to which the arc detector is attached in a state that the both ends of the body portion are protruded higher than the body portion. Terminal block for switchboard. delete The terminal board according to claim 1, wherein the bimetal is configured to perform a switch operation when the temperature of the connecting member rises to a predetermined temperature. delete delete
KR1020150097726A 2015-07-09 2015-07-09 terminal block for switch panel and dstribution panel KR101771551B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150097726A KR101771551B1 (en) 2015-07-09 2015-07-09 terminal block for switch panel and dstribution panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150097726A KR101771551B1 (en) 2015-07-09 2015-07-09 terminal block for switch panel and dstribution panel

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KR20170006696A KR20170006696A (en) 2017-01-18
KR101771551B1 true KR101771551B1 (en) 2017-08-29

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200094474A (en) 2019-01-30 2020-08-07 주식회사 대경산전 Terminal for switchgear with arc reduction function
KR20240038465A (en) 2022-09-16 2024-03-25 한국전력공사 Switchboard system for electric confusion prevention

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102137012B1 (en) 2019-05-28 2020-07-23 주식회사 서우일렉트 Terminal block having function indicating power application and reversed phase fastening
KR102111027B1 (en) * 2019-06-13 2020-05-15 주식회사 유트론 Arc detecting apparatus of a electric equipment
KR102111028B1 (en) * 2019-06-13 2020-05-15 주식회사 유트론 Arc detecting system of a electric equipment
CN110854691B (en) * 2019-11-01 2020-09-22 广东电网有限责任公司 Switch board with automated inspection function

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200435296Y1 (en) * 2006-07-08 2007-01-16 (주) 에스아이이 Terminal Block with bimetal and Application electric fire supervison Terminal Block
KR100996627B1 (en) 2009-08-14 2010-11-29 (주)엘지산업 Distributing board applied with arc sensor
JP4767459B2 (en) * 2001-09-20 2011-09-07 音羽電機工業株式会社 Arrester device
KR101457880B1 (en) * 2013-02-12 2014-11-04 지투파워 (주) A high tension panel, low tension panel, dstribution panel and motor control panel for Fire Sensing Fuction

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4767459B2 (en) * 2001-09-20 2011-09-07 音羽電機工業株式会社 Arrester device
KR200435296Y1 (en) * 2006-07-08 2007-01-16 (주) 에스아이이 Terminal Block with bimetal and Application electric fire supervison Terminal Block
KR100996627B1 (en) 2009-08-14 2010-11-29 (주)엘지산업 Distributing board applied with arc sensor
KR101457880B1 (en) * 2013-02-12 2014-11-04 지투파워 (주) A high tension panel, low tension panel, dstribution panel and motor control panel for Fire Sensing Fuction

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200094474A (en) 2019-01-30 2020-08-07 주식회사 대경산전 Terminal for switchgear with arc reduction function
KR20240038465A (en) 2022-09-16 2024-03-25 한국전력공사 Switchboard system for electric confusion prevention

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