KR20130089013A - Safty device for distributing board - Google Patents

Safty device for distributing board Download PDF

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Publication number
KR20130089013A
KR20130089013A KR1020120010330A KR20120010330A KR20130089013A KR 20130089013 A KR20130089013 A KR 20130089013A KR 1020120010330 A KR1020120010330 A KR 1020120010330A KR 20120010330 A KR20120010330 A KR 20120010330A KR 20130089013 A KR20130089013 A KR 20130089013A
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KR
South Korea
Prior art keywords
main body
door
switchboard
power
hinge
Prior art date
Application number
KR1020120010330A
Other languages
Korean (ko)
Inventor
강연문
Original Assignee
강연문
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Publication date
Application filed by 강연문 filed Critical 강연문
Priority to KR1020120010330A priority Critical patent/KR20130089013A/en
Publication of KR20130089013A publication Critical patent/KR20130089013A/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
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
    • H02B1/38—Hinged covers or doors
    • 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
    • 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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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Patch Boards (AREA)

Abstract

PURPOSE: A safety distribution panel system is provided to allow the door of a distribution panel not to be opened in the internal inspection and maintenance of the distribution panel, thereby preventing the risk of electric shock. CONSTITUTION: An electromagnet (11) is installed at any one of a main body (2) and a door (3). The electromagnet forms the electrical magnetism. The electromagnet locks or unlocks the opening and shutting of the door. A power switch unit (13) is installed on the main body. The power switch unit supplies power to the main body and the electromagnet or cuts off power.

Description

Switchboard safety device {SAFTY DEVICE FOR DISTRIBUTING BOARD}

The present invention relates to a safety device of a switchgear used for operation or control of a power plant, substation, and the like, and in particular, when a worker inspects and repairs the switchgear, the risk of an electric shock caused by an internal energization of the switchboard is prevented. A switchgear safety device that enables the work to be performed.

Generally, switchboards equipped with switches, instruments, relays, etc. are installed for operation or control of power plants, substations, and motors.In particular, large factories or telecommunications companies include PLC panels, high-low voltage panels, and repairs. ) Various kinds of electronic parts (hereinafter referred to as "electric appliances"), such as panels, special high power switchboards, and communication system panels, are installed inside the switchboard.

On the other hand, when power is supplied to the switchboard through the power supply cable, a high voltage and low voltage flow through the electrical equipment in the switchboard. At this time, the worker performing the work for the internal inspection and repair of the switchboard is exposed to the energization in the switchboard, there is a problem such that the worker is injured by the high voltage, low voltage. In particular, there is a risk of a safety accident due to the operator opening the door of the switchboard in the state of energization of the switchboard for inspection and repair of the switchboard. Even if the worker takes safety measures and works, safety accidents are frequently occurring, such as death from electric shock accidents due to inadvertent operation of the switchboard.

The present invention is to provide a switchboard safety device that allows the operator to perform a safe operation by preventing the risk of electric shock accident due to the internal power supply of the switchboard during the inspection and repair of the switchboard.

In addition, the present invention is to provide a switchboard safety device that prevents the safety accident by preventing the door of the switchboard is open in the state that the switchboard is energized during the internal inspection and repair of the switchboard.

In addition, the present invention is to provide a switchboard safety device that allows the operator to open the door of the switchboard for the internal inspection and maintenance of the switchboard to prevent the safety accident by making the interior of the switchboard non-conductive state.

The present invention provides a switchgear including a main body in which the electrical equipment is installed and a door which is installed to be opened and closed on the main body, which is installed on any one of the main body and the door and forms an electrical magnetic property to open and close the door. An electromagnet for locking and unlocking; And a power switch unit installed on the main body and supplying and cutting off power to the main body and the electromagnet. Disclosed is a switchboard safety device, characterized in that the release is possible to open the door.

In addition, the switchboard is installed on any one of the main body and the door, and electrically connected to the power supplied to the electromagnet discloses a switchboard safety device characterized in that it further comprises an operation indicator for displaying the operating state of the electromagnet.

In addition, the operation indicator discloses a switchboard safety device, characterized in that the LED (LED) panel.

In addition, the present invention is a switchboard including a main body and a door is installed in the main body, the door is provided to be opened and closed, the main body is installed to be movable, the lock for unlocking and unlocking the opening and closing of the door absence; A solenoid valve installed on the main body, the solenoid valve restraining and restraining the movement of the lock member; And a power switch unit installed on the main body and supplying and cutting off power to the main body and the solenoid valve, wherein the power supply is cut off when the power switch unit is turned off to become an energized state, and to the solenoid valve. Disclosed is a switchboard safety device, characterized in that the lock member is released by the lock member is released.

In addition, the solenoid valve is disclosed in the switchboard safety device, characterized in that installed in the main body so that the movable portion of the solenoid valve in the direction parallel to the moving direction of the lock member.

In addition, the solenoid valve is disclosed in the switchboard safety device, characterized in that installed in the main body so that the movable portion of the solenoid valve in the direction perpendicular to the moving direction of the lock member.

In addition, the present invention provides a switchgear including a main body in which the electrical equipment is installed and the door is installed to open and close the main body, the hinge portion to which the door is rotatably coupled to the main body; And a hinge power terminal unit installed in the hinge unit and electrically connected and shorted by a relative rotation of the main body and the door to supply and cut off power to the main body, wherein the hinge power terminal unit opens when the door is opened. Disclosed is a switchboard safety device, characterized in that the electrical connection of the short circuit is cut off the power supply to the main body.

The hinge power supply terminal may include: a first connection terminal provided at a first hinge coupler on the main body side; And a second connection terminal provided to correspond to the first connection terminal on the second hinge coupling portion of the door side, wherein the first connection is performed by relative rotation of the first hinge coupling portion and the second hinge coupling portion. Disclosed is a switchboard safety device, wherein an electrical connection and a short circuit are made between a terminal and the second connection terminal.

The switchboard safety device according to the present invention has the following effects.

(1) The switchboard safety device according to the present invention prevents the door of the switchboard from being opened by using an electromagnet or a solenoid valve in an energized state of the switchboard when the worker inspects and repairs the switchboard. Accordingly, there is an effect that the operator can perform a safe operation by preventing the risk of electric shock accident by the internal power supply of the switchboard.

(2) The switchboard safety device according to the present invention is provided with a hinge power terminal portion in the hinge portion of the main body and the door, when the operator opens the door of the switchboard for the internal inspection and repair of the switchboard, the electrical short circuit of the hinge power terminal portion is In this way, the power supply to the switchboard is automatically cut off so that the inside of the switchboard is in an energized state, thereby preventing a safety accident.

1 is a perspective view showing a switchboard safety device according to a first embodiment of the present invention.
2 and 3 are cross-sectional views showing the electromagnet mounting structure of the switchboard safety device shown in FIG.
4 and 5 are electrical circuit diagrams of the switchboard safety device shown in FIG.
6 and 7 illustrate a switchboard safety device according to a second preferred embodiment of the present invention.
8 is a view showing a switchboard safety device according to a third embodiment of the present invention.
9 and 10 are views showing main parts of the hinge power terminal portion shown in FIG.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying 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.

1 is a perspective view showing a switchboard safety device according to a first preferred embodiment of the present invention, Figures 2 and 3 are sectional views showing the electromagnet mounting structure of the switchboard safety device shown in FIG.

1 to 3, the switchboard safety device 10 according to the first embodiment of the present invention includes an electromagnet 11, a power switch unit 13, and an operation display unit 15. Here, the switchboard 1 includes a main body 2 and a door 3 and is used for operation or control of a power plant, substation, or the like.

The main body 2 is provided with various kinds of electronic components (hereinafter referred to as "electric appliances") 4 such as a PLC panel, a high-low voltage panel, a repair panel, a special power panel, and a communication system panel. The main body 2 generally has a rectangular box-shaped structure, but is not limited thereto. The main body 2 may have various shapes in which a space for installing the electronic device 4 is provided. In addition, a power supply cable 5 for supplying power required for the switchboard 1 is connected to the rear portion of the main body 2.

The door 3 is provided in the main body 2 so that opening and closing is possible. Although the present exemplary embodiment illustrates a configuration in which only the front door 3 is installed in the switchboard 1, the front door 3 and the rear door (not shown) or a plurality of doors are installed in the switchboard 1. May be

The electromagnet 11 is formed in any one of the main body 2 and the door 3 of the switchboard 1 so as to form an electrical magnetic to lock and unlock the opening and closing operation of the door (3). For example, as shown in FIG. 2, the fixing bracket 14 is inserted into the processing hole formed inside the front frame of the main body 2, or as shown in FIG. 3, the front of the main body 2 is installed. The fixing bracket 14 is fixed to the outside of the frame with a screw 14a, and the electromagnet 11 is fixed to the fixing bracket 14 with a screw 14a, and the door 3 comes into contact with the electromagnet 11. The metal contact portion 12 is fixed to the rear side of the screw 12a or installed, or the door 3 itself may be used as a contact portion without installing a separate contact portion 12. Alternatively, the metal contact portion 12 may be provided at one side of the front frame of the main body 2, and the electromagnet 11 may be installed at one side of the rear surface of the door 3 in contact with the contact portion. Moreover, the electromagnet 11 is manufactured by adjusting a coil winding etc. according to the range which a magnetic force exerts. Since the structure of the electromagnet 11 can be understood by a known technique, detailed description thereof will be omitted.

The power switch unit 13 is installed in the main body 2 to supply and cut off power to the main body 2 and the electromagnet 11. In the present embodiment, when the electromagnet 11 is installed at the front surface of the main body 2, the exterior of the main body 2 can be operated even when the front door 3 is closed by magnetism. The configuration in which the power switch unit 13 is installed is illustrated. However, the present invention is not limited thereto, and in the case where both the front door 3 and the rear door are installed in the switchboard 1 and the electromagnet 11 is installed in the rear part of the main body 2, the power switch unit inside the front of the main body 2 is provided. It is preferable that 13 is provided. That is, in the case of the switchboard 1 having the front door 3 and the rear door, more inspection and repair work is performed at the rear part than at the front part. In this case, the power switch part 13 is placed in the front part of the main body 2. And the electromagnet 11 is installed in the main body 2 on the rear door side, and the power switch 13 in the front part of the main body 2 must be turned off during the rear inspection and repair of the switchboard 1. The door can be opened to automatically perform work safely in the absence of electricity. In addition, when the power switch unit 13 is installed outside the main body 2, a power cover (not shown) or a locking device (not shown) may be provided on the power switch unit 13 for power safety management. It is desirable to make it inaccessible to the public.

The operation display unit 15 is installed on any one of the main body 2 and the door 3 to be electrically connected to the power supplied to the electromagnet 11 to display the operation state of the electromagnet 11. For example, as shown in the present embodiment, the operation display unit 15 is installed on one side of the front frame of the main body 2, and the operator is allowed to operate the electromagnet 11 through the LED hole 6 provided in the door 3. To check whether the door 3 is locked. Alternatively, the operation display unit 15 may be installed on one side of the front surface of the door 3 without forming the LED hole 6 in the door 3. The operation display unit 15 preferably uses an LED (LED) panel (hereinafter, denoted by reference numeral 15) for displaying the state of operation of the electromagnet 11, but the present invention is not limited thereto. It may include any light that can observe the operation of the.

4 and 5 are electrical circuit diagrams of the switchboard safety device shown in FIG.

As shown in FIG. 4, the electromagnet 11 and the LED panel 15 may be connected in parallel with respect to the power supplied to the switchboard main body 2. At this time, since the main control power supply on the main body 2 side may be affected by the electromagnet 11 and the LED panel 15 on the door safety device side, the main branch main control power supply on the secondary branch circuit of the main circuit. It is desirable to install a small capacity fuse, for example a Diazed Fuse Holder 7, to protect the main body control circuit. Alternatively, as shown in FIG. 5, an electric circuit for connecting the electromagnet 11 and the LED panel 15 in series with respect to the power supplied to the switchboard main body 2 may be configured. In addition, according to the type of the control power supply of the power switch unit 13, in the case of an alternating current or direct current can be configured an electric circuit suitable for it.

The switchboard safety device 10 according to the first exemplary embodiment of the present invention configured as described above is provided in the switchboard 1 in a state where the worker is energized inside the switchboard 1 during the internal inspection and repair of the switchboard 1. Do not open the door (3) to prevent a safety accident. That is, when the operator inspects and repairs the internal switchboard 1, the power switch unit 13 must be turned off to cut off the power supply to the main body 2 to become an internal non-energized state, and the magnetism of the electromagnet 11 By being released to allow the door 3 to be opened, the operator can safely perform the work in the non-energized state. In addition, by informing the operator whether or not the operation of the electromagnet 11 through the LED panel 15 installed in the switchboard 1, the operator can easily determine whether the switchboard (1) is in the state of electric conduction and whether the door (3) can be opened. It can be recognized.

6 and 7 illustrate a switchboard safety device according to a second preferred embodiment of the present invention.

6 and 7, the switchboard safety device 20 according to the second preferred embodiment of the present invention includes a lock member 21, a solenoid valve 23, and a power switch unit 25.

In this embodiment, repeated descriptions of functions and installation positions of the switchboard main body 2, the door 3, and the power switch unit 25 performing the same functions as those of the first embodiment will be omitted. Hereinafter, the lock member 21 and the solenoid valve 23 different from the above-described first embodiment will be described.

The lock member 21 is installed to be slidably movable in the main body 2 of the switchboard 1 to lock and unlock the opening and closing of the door 3. For example, although not shown in the drawings, a long hole (not shown) is formed in the slide member in the slide movement direction, and the locking member 21 is inserted into the lock member 21 by inserting a fixing pin (not shown) through the long hole. (2) can be implemented in a structure that is supported to be movable slide. The lock member 21 is provided with a lock engaging portion 22 having a locking groove 22a formed therein so as to be locked to the locking protrusion 3a of the door 3. In addition, by connecting the main body 2 and the lock member 21 with an elastic member, for example, a coil spring 24, the lock member 21 is configured to be restored to the initial position after the movement.

The solenoid valve 23 is installed in the main body 2 to restrain and restrain the movement of the lock member 21. The solenoid valve 23 is an electronic switch having a movable portion 23a which is sunk in response to power on / off, and the solenoid valve 230 is well known in the art, and thus detailed description thereof will be omitted. In the example, the solenoid valve 23 is opposed to the front end of the lock member 21 in the main body 2 so that the movable portion 23a of the solenoid valve 23 emerges in a direction parallel to the slide movement direction of the lock member 21. Although the configuration is illustrated, the solenoid valve 23 is not limited thereto, and the solenoid valve 23 is installed on the main body 2 so that the movable part 23a of the solenoid valve 23 emerges in a direction perpendicular to the slide movement direction of the lock member 21. May be

The power switch 25 is installed in the main body 2 and supplies and cuts power to the main body 2 and the solenoid valve 23. At this time, since the main control power supply on the main body 2 side may be affected by the solenoid valve 23 on the door safety device side, the fuse having a smaller capacity than the main control power supply on the secondary branch circuit of the main circuit, For example, it is preferable to install a Diazed Fuse Holder 7 to protect the main body control circuit.

In the switchboard safety device 20 according to the second embodiment of the present invention configured as described above, as shown in FIG. 6, the main body of the switchboard 1 when the power switch unit 25 is on. Power is supplied to (2), and the state is internally energized. In addition, power is supplied to the solenoid valve 23 to move the movable portion 23a of the solenoid valve 23, and as the movable portion 23a moves forward, the lock member 21 slides backward to move the door 3. The locking projection 3a of the lock member 21 is inserted into the locking groove 22a of the lock member 21 so that the door 3 is locked. Therefore, in the state where the power is supplied to the switchboard 1 and the internal electricity is supplied, the locking state of the door 3 is always maintained even if the worker tries to open the door 3 of the switchboard 1 for the internal inspection and repair of the switchboard 1. It is possible to prevent the risk of electric shock by preventing the operator from opening the door (3).

Meanwhile, as shown in FIG. 7, when the operator turns off the power switch unit 25 for the internal inspection and maintenance of the switchboard 1, power supply is cut off to the main body 2 of the switchboard 1. It becomes internal no electricity state. In addition, the power supplied to the solenoid valve 23 is also turned off so that the movable portion 23a of the solenoid valve 23 is reversed. As the movable portion 23a is retracted, the lock member 21 slides forward. While the locking projection 3a of the door is separated from the locking groove 22a of the locking member 21, the door 3 is in the unlocked state. Therefore, when the power supply to the switchboard 1 is cut off and the door 3 is unlocked in the state of no power supply, the operator can open the door 3 of the switchboard 1 for the internal inspection and repair of the switchboard 1. It becomes possible.

FIG. 8 is a view showing a switchboard safety device according to a third preferred embodiment of the present invention, and FIGS. 9 and 10 are views showing main parts of the hinge power supply terminal shown in FIG.

As shown in FIGS. 8 to 10, the switchboard safety device 30 according to the third embodiment of the present invention includes a hinge portion 31 and a hinge power terminal portion 33.

In this embodiment, a repetitive description of the functions and the installation positions of the switchboard main body 2 and the door 3 performing the same functions as those of the first and second embodiments will be omitted. Hereinafter, the hinge portion 31 and the hinge power supply terminal portion 33 different from those of the first and second embodiments will be described.

The hinge portion 31 allows the door 3 to be rotatably coupled to the main body 2. The hinge portion 31 is fitted to the hinge shaft 32, the first hinge coupling portion 34 formed in the main body 2 to be pivotally coupled to the hinge shaft 32, and the hinge shaft 32 It includes a second hinge coupling portion 35 formed in the door (3) to be able to be coupled.

The hinge power terminal unit 33 is installed at the hinge part 31, and electrically connected and shorted by a relative rotation of the main body 2 and the door 3 to supply and cut off power to the main body 2. The hinge power supply terminal portion 33 includes a first connecting terminal 34a and a second connecting terminal 35a.

The first connecting terminal 34a is provided at the end face of the first hinge coupling portion 34 on the main body 2 side, and the second connecting terminal 35a is the second hinge coupling portion 35 on the door 3 side. It is provided to correspond to the 1st connection terminal 34a in the longitudinal cross section of the. The first connecting terminal 34a is provided to electrically connect the external power source 7 to the main body 2, and the second connecting terminal 35a is connected to the main body 2 through the connection with the first connecting terminal 34a. It is provided to be electrically connected. In addition, when the door 3 is opened and closed with respect to the main body 2, the electrical connection and the short circuit between the first connecting terminal 34a and the second connecting terminal 35a can be smoothly made within a predetermined opening and closing angle range. It is preferable to form the first connecting terminal 34a and the second connecting terminal 35a in the circumferential direction at the end faces of the first hinge coupling part 34 and the second hinge coupling part 35 in a circumferential direction. For example, in the present embodiment, the first connecting terminal 34a and the second connecting terminal 35a in the angular range of 90 degrees in the circumferential direction to the longitudinal cross-sections of the first hinge coupling portion 34 and the second hinge coupling portion 35. ) Is illustrated, but the present invention is not limited thereto, and the first connecting terminal 34a and the second connecting terminal 35a are connected to the main body 2 in a state where the door 3 is closed. In the open state), the first connection terminal 34a and the second connection terminal 35a can be designed in a range of various angles at which the connection of the second connection terminal 35a is released at a time or gradually. In addition, the longitudinal cross-sections of the first hinge coupling part 34 and the second hinge coupling part 35 are insulators for electrical insulation in areas where the first connection terminal 34a and the second connection terminal 35a are not formed. Not shown) is preferably applied.

The switchboard safety device 30 according to the third embodiment of the present invention configured as described above has a first hinge coupling part 34 and a second hinge coupling when opening and closing the door 3 with respect to the switchboard body 2. The relative rotation of the part 35 causes electrical connection and short circuit between the first connection terminal 34a and the second connection terminal 35a, so that power is supplied to and disconnected from the main body 2. For example, as shown in FIG. 9, when the door 3 is closed with respect to the main body 2, the first connecting terminal 34a of the main body 2 and the second connecting terminal of the door 3 ( 35a) is electrically connected, and power is supplied to the main body 2 so that the inside of the switchboard 1 is energized. On the other hand, as shown in Figure 10, when the operator opens the door 3 for the internal inspection and repair of the switchboard 1, the first connection terminal 34a and the second connection terminal (of the hinge power terminal portion 33) ( As the electrical connection between 34b) is short-circuited and the power supply to the main body 2 is automatically cut off, the interior of the switchboard 1 is in an energized state. Therefore, the worker can prevent the risk of electric shock due to carelessness of the operator by performing the internal inspection and repair work of the switchboard 1 in the state that the switchboard (1) is energized.

Therefore, according to the first and second embodiments of the present invention, the operator uses the electromagnet 11 or the solenoid valve 23 in the internal energized state of the switchboard 1 during the internal inspection and repair of the switchboard 1. The door 3 of (1) is not opened, and a safety accident can be prevented. In addition, according to the third embodiment of the present invention, the hinge power terminal 33 is provided on the hinge portion 31 of the main body 2 and the door 3 so that the operator can inspect the internal of the switchboard 1 and repair it. When the door 3 of the switchboard 1 is opened, an electrical short circuit of the hinge power terminal unit 33 is made. Accordingly, power supply to the switchboard 1 is automatically cut off so that the inside of the switchboard 1 is energized. Safety accidents can be prevented by

While the present invention has been described in connection with certain exemplary embodiments, it will be understood by those skilled in the art that various changes may be made without departing from the scope of the present invention. In addition, the description in parentheses in the description of the claims is intended to prevent obscuration of the description, and the scope of the claims of the claims should be construed to include all the items in parentheses.

1: switchboard 2 body
3: door 10, 20, 30: switchboard safety device
11 electromagnet 13,25 power switch
15: operation display unit, LED panel 21: lock member
23: solenoid valve 31: hinge portion
33: hinge power terminal portion 34: the first hinge coupling portion
35: second hinge coupling portion

Claims (8)

In the switchboard comprising a main body and a door that is provided to be opened and closed on the main body,
An electromagnet installed at any one of the main body and the door, the electromagnet forming an electrical magnetic to lock and unlock the opening and closing of the door; And
Is installed in the main body, including a power switch unit for supplying and cutting off power to the main body and the electromagnet,
When the power switch unit is off the power supply to the main body is cut off and the state of the non-energized state, the magnetism of the electromagnet is released to enable the opening of the door. The switchboard safety device according to claim 1, further comprising an operation display unit installed on one of the main body and the door and electrically connected to power supplied to the electromagnet to display an operation state of the electromagnet. . 3. The switchboard safety device according to claim 2, wherein the operation indicator is an LED panel. In the switchboard comprising a main body and a door that is provided to be opened and closed on the main body,
A lock member movably installed in the main body, for locking and releasing the opening and closing of the door;
A solenoid valve installed on the main body, the solenoid valve restraining and restraining the movement of the lock member; And
It is installed on the main body, and includes a power switch unit for supplying and cutting off power to the main body and the solenoid valve,
When the power switch unit is off the power supply to the main body is cut off and the state of the non-electrical state, the lock member by the solenoid valve is released, the switchboard safety device characterized in that the opening of the door is possible. 5. The switchboard safety device according to claim 4, wherein the solenoid valve is installed on the main body so that the movable part of the solenoid valve comes out in a direction parallel to the moving direction of the lock member. 5. The switchboard safety device according to claim 4, wherein the solenoid valve is installed on the main body so that the movable part of the solenoid valve emerges in a direction perpendicular to the moving direction of the lock member. In the switchboard comprising a main body and a door that is provided to be opened and closed on the main body,
A hinge part to which the door is rotatably coupled to the main body; And
Is installed in the hinge portion, by the relative rotation of the main body and the door is electrically connected and short-circuited comprises a hinge power terminal for supplying and cutting off power to the main body,
Switching device safety device, characterized in that when the door is open the electrical connection of the hinge power terminal is short-circuited to cut off the power supply to the main body. The method of claim 7, wherein the hinge power terminal unit,
A first connection terminal provided on the first hinge coupler on the main body side; And
Including a second connection terminal provided to correspond to the first connection terminal in the second hinge coupling portion of the door side,
Electrical switchgear and short circuit between the first connection terminal and the second connection terminal is made by the relative rotation of the first hinge coupling portion and the second hinge coupling portion.
KR1020120010330A 2012-02-01 2012-02-01 Safty device for distributing board KR20130089013A (en)

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KR101699806B1 (en) * 2016-10-31 2017-01-25 주식회사 광명전기 door interlock apparatus preventing from electric shock accident by charging current or voltage when door of switchgear are open
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KR20180065569A (en) * 2016-12-08 2018-06-18 이동근 A Case For Hammer Using Emergency Escape
KR20220075812A (en) * 2020-11-30 2022-06-08 ㈜엔에스신성 Method and system for managing a fire of power converter
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101593174B1 (en) * 2015-02-25 2016-02-12 (주)원테크 A switchgear panel
CN106129844A (en) * 2016-08-29 2016-11-16 江苏银佳企业集团有限公司 A kind of 10kV high-voltage central-positioned switch cubicle
KR101699806B1 (en) * 2016-10-31 2017-01-25 주식회사 광명전기 door interlock apparatus preventing from electric shock accident by charging current or voltage when door of switchgear are open
KR101699805B1 (en) * 2016-10-31 2017-01-25 주식회사 광명전기 door interlock apparatus preventing from electric shock accident by charging current or voltage when double doors of switchgear are open
KR20180065569A (en) * 2016-12-08 2018-06-18 이동근 A Case For Hammer Using Emergency Escape
KR20220075812A (en) * 2020-11-30 2022-06-08 ㈜엔에스신성 Method and system for managing a fire of power converter
KR20220164176A (en) * 2021-06-04 2022-12-13 한국전력공사 Apparatus and Method for testing power source of electrical panel board
KR20240000189U (en) * 2022-07-26 2024-02-02 (주)로하스에스지 Power Control Panel

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