KR102657958B1 - A handy type switch discharge and ground device - Google Patents

Abstract

The present invention connects the high-voltage cable terminal connected to the breaker and the ground bar to each other before repair work on the electrical equipment of the switchboard, by manually opening or narrowing the clamping module through a switching handle that can be directly held by the user without a separate driving device. It is about a handy switchboard discharge and grounding device that enables electrical discharge, discharge, and grounding.

Description

Handy type switchboard discharge and grounding device {A HANDY TYPE SWITCH DISCHARGE AND GROUND DEVICE}

The present invention relates to a handy switchboard discharge and grounding device. More specifically, the present invention relates to a handy switchboard discharge and grounding device. More specifically, in connecting a high-voltage cable terminal connected to a circuit breaker and a grounding bar before maintenance work on switchboard electrical equipment, the user can do so without a separate driving device. It relates to a handy switchboard discharge and grounding device that allows electrical contact, discharge, and grounding to occur by manually opening or closing the clamping module through a directly grippable switching handle.

Generally, a high-voltage circuit breaker is used as a means of cutting off power from the electric circuit.

These high-voltage breakers can be connected to a panel to input or block power, and are a protection device that automatically cuts off the circuit when switching or when a failure occurs, and is operated to prevent the spread of ripple effects in the event of an accident.

In addition, the high-voltage circuit breaker is stored in a predetermined installation cubicle, and is pulled out from the cubicle and subjected to inspection and maintenance during periodic inspection and maintenance.

In addition, during power outage work for inspection and maintenance of power equipment at the bottom of the breaker, frequent ON/OFF work and drawing/in/out work of the breaker are involved to cut off power. In this process, arcs are generated, which can lead to safety accidents due to fire and explosion. There was a problem.

Recently, to solve this problem, a pull-out device has been used to remotely pull the circuit breaker out of the panel.

Meanwhile, when performing power outage work on a switchboard with a high voltage of 3,300V or higher, the high-voltage breaker must be completely insulated, but voltage may be applied to the power supply cable due to a fault in the breaker or reverse charging. In addition, even if you turn off the high-voltage breaker and pull out the high-voltage breaker, a large amount of electric charge is accumulated in the long three-phase cable, so in order to perform power outage work for repair of related facilities, Detection, discharge, and grounding work must be performed to remove charges accumulated in the cable by grounding them.

At this time, in the past, workers manually connected the grounding bar and the power supply cable terminal with a separate grounding cable to maintain discharge and grounding, so that the breaker could unexpectedly trip after cable charging voltage or power outage work. Even when charged (ON), the conduction current escapes to the ground through the ground bar, ensuring the safety of workers.

However, since the three-phase cable terminal exiting through the busbar on the secondary side of the high-voltage breaker is an exposed area that is not insulated, in the process of connecting the worker directly with a separate grounding cable, due to the characteristics of extra-high voltage of 3,300V or more, there may be a slight risk of damage. If a mistake occurs, there is a risk of fire and explosion along with strong arc generation and spark generation, so there was a problem and limitation that workers were very reluctant to do this work due to concerns about safety accidents.

Korean Patent No. 10-2417842

The present invention was developed to solve the above-mentioned problems. In connecting the high-voltage cable terminal connected to the circuit breaker and the grounding bar before repair work on the electrical equipment of the switchboard, the user can directly hold the switch without a separate driving device. The aim is to provide a handy distribution board discharge and grounding device that allows electric shock, discharge, and grounding to occur by manually opening or closing the clamping module through a handle.

The handy switchboard discharging and grounding device 100 according to an embodiment of the present invention includes a handy clamping module 110 that clamps the cable terminal connected to the load side from the rear of the switchboard to allow electric shock and discharge to proceed, and the handy clamping module 110 ), but is provided so that it can be gripped by the user. When it opens to both sides, the handy clamping module 110 switches to the clamping ready state, and when it narrows, the handy clamping module 110 switches to the clamping state. It may include a ground clamp 130 that clamps a ground bar provided at the rear of the distribution board while being electrically connected to the switching handle 120 and the handy clamping module 110 to enable grounding.

In one embodiment, the handy clamping module 110 includes a clamping module frame 111, a guide rail 112 provided in the longitudinal direction on the inside of the clamping module frame 111, and one side with the switching handle 120. It is connected and narrowed inward on the guide rail 112 or opened toward both ends by the operation of opening or narrowing the switching handle 120 while seated on the guide rail 112. 2 outer clamping arm modules 113 and 114, respectively connected to the first and second clamping arm modules 113 and 114 while seated on the guide rail 112, and the first and second outer clamping arms First and second inner clamping arms that open when the modules 113 and 114 are narrowed in the inward direction, and narrow in the inner direction when the first and second clamping arm modules 113 and 114 open in both end directions. It may include modules 115 and 116 and a clamping module cover 117 that covers the side of the clamping module frame 111.

In one embodiment, the first outer clamping arm module 113 includes a first outer slider 113-1, an extension support 113-2 extending outward from the first outer slider 113-1, and the It is provided at the end of the extension support 113-2 and includes a first outer clamp 113-3 that contacts the right side of the cable terminal located on the left among the three cable terminals, and the second outer clamping arm module 114 ) is provided at the second outer slider 114-1, an extension support 114-2 extending outward from the second outer slider 114-1, and an end of the extension support 114-2, It includes a second outer clamp (114-3) in contact with the left side of the cable terminal located on the right side of the three cables, and the first inner clamping arm module 115 is connected to the first outer slider (113-1) A connected first inner slider 115-1, an extension support 115-2 extending forward of the first inner slider 115-1, and an end of the extension support 115-2 are provided, and three It includes a first inner clamp 115-3 in contact with the right side of the cable terminal located in the center among the cable terminals, and the second inner clamping arm module 116 is connected to the second outer slider 114-1. An inner slider (116-1), an extension support (116-2) extending forward of the second inner slider (116-1), and an end of the extension support (116-2) are provided, and one of three cable terminals It may include a second inner clamp 116-3 in contact with the left side of the centrally located cable terminal.

In one embodiment, the first outer slider 113-1 is connected to the first inner slider 115-1 through a first connecting rod 200, and the second outer slider 114-1 is connected to the first inner slider 115-1. 2 It is connected to the second inner slider 116-1 through a connecting rod 300, and the second connecting rod 300 is an end of the third connecting rod 400 protruding from the first inner clamping arm module 115. Penetrates the connecting means 410 provided in, and the first connecting rod 200 penetrates the connecting means 510 provided at the end of the fourth connecting rod 500 protruding from the second inner clamping arm module 116. You can.

In one embodiment, the first connecting rod 200 passes through the second inner slider 116-1 and is connected to the first inner slider 115-1, and the second connecting rod 300 penetrates the first inner slider 116-1. It may pass through the slider 115-1 and be connected to the second inner slider 116-1.

In one embodiment, the switching handle 120 includes first and second rear connecting means (113-4, 114-4) protruding from each rear surface of the first and second outer clamping arm modules (113, 114). It is connected to, but can be provided to be detachable.

According to one aspect of the present invention, it has the advantage of being able to easily perform electric shock, discharge, and grounding by manually opening or narrowing the clamping module through a switching handle that can be directly held by the user without a separate driving device.

Figure 1 is a diagram schematically showing the configuration of a handy switchboard discharging and grounding device 100 according to an embodiment of the present invention.
Figure 2 is a diagram showing the handy clamping module 110 in more detail.
Figure 3 is a diagram showing the connection relationship between the first and second outer clamping arm modules 113 and 114 and the first and second inner clamping arm modules 115 and 116.
Figure 4 is a diagram showing the process in which the first and second outer clamping arm modules 113 and 114 are opened and the first and second inner clamping arm modules 115 and 116 are narrowed through the switching handle 120.
FIG. 5 is a diagram illustrating a process in which the first and second outer clamping arm modules 113 and 114 are narrowed and the first and second inner clamping arm modules 115 and 116 are opened through the switching handle 120.

Below, preferred embodiments are presented to aid understanding of the present invention. However, the following examples are provided only to make the present invention easier to understand, and the content of the present invention is not limited by the examples.

Figure 1 is a diagram schematically showing the configuration of a handy switchboard discharging and grounding device 100 according to an embodiment of the present invention.

Looking at FIG. 1, the handy switchboard discharge and grounding device 100 according to an embodiment of the present invention may be largely configured to include a handy clamping module 110, a switching handle 120, and a grounding clamp 130.

First, the handy clamping module 110 serves to clamp three cable terminals connected to the load side from the rear of the switchboard to allow electric shock and discharge to proceed. Looking at this in more detail, it is as follows.

Figure 2 is a diagram showing the handy clamping module 110 in more detail, and Figure 3 is a diagram showing the first and second outer clamping arm modules 113 and 114 and the first and second inner clamping arm modules 115 and 116. This is a drawing showing the connection relationship.

2 and 3, the handy clamping module 110 includes a clamping module frame 111, a guide rail 112, first and second outer clamping arm modules 113 and 114, and first and second inner clamping modules. It is composed of arm modules (115, 116) and clamping module cover (117).

A guide rail 112 is installed longitudinally on the inside of the clamping module frame 111, especially on the upper side of the inner side.

The guide rail 112 is installed in the longitudinal direction on the inside of the clamping module frame 111, and includes first and second outer clamping arm modules 113 and 114, and first and second inner clamping arm modules 115 and 116. ) forms a movement path so that it can widen or narrow.

The first and second outer clamping arm modules 113 and 114 and the first and second inner clamping arm modules 115 and 116 are moved linearly along the longitudinal direction of the guide rail 112 to spread or narrow left and right. do. In particular, the first and second outer clamping arm modules 113 and 114 may operate opposite to the first and second inner clamping arm modules 115 and 116.

In other words, when the first and second outer clamping arm modules 113 and 114 are widened, the first and second inner clamping arm modules 115 and 116 are narrowed, and conversely, the first and second outer clamping arm modules 113 and 114 are widened. When (113, 114) is narrowed, the first and second inner clamping arm modules (115, 116) are spread.

The first outer clamping arm module 113 is composed of a first outer slider 113-1, an extension support 113-2, and a first outer clamp 113-3 mounted on the guide rail 112.

The first outer slider 113-1 is provided so that it can freely move linearly on the guide rail 112 while being seated on the guide rail 112. At this time, a first rear connecting means 113-4 may protrude from the rear of the first outer slider 113-1, and the first rear connecting means 113-4 is connected to one side of the switching handle 120, which will be described later. This can be combined.

The extension support 113-2 protrudes from one side of the first outer slider 113-1 toward the outside of the clamping module frame 111, and a first outer clamp 113-3 is provided at its end.

The first outer clamp (113-3) is in contact with the right side of the cable terminal located on the left among the three cable terminals on the rear of the distribution board, and its shape corresponds to the right side of the cable terminal so that it can be as close as possible to the right side of the cable terminal. It can be formed as

Meanwhile, the first outer clamping arm module 113 may be integrally connected to the first inner clamping arm module 115. Therefore, when the first outer clamping arm module 113 is moved linearly to narrow inward, the first inner clamping arm module 115 is also moved linearly inward, and the first outer clamping arm module 113 is spread outward. When it moves linearly, the first inner clamping arm module 115 also moves linearly outward. This will be described later.

The second outer clamping arm module 114 is composed of a second outer slider 114-1, an extension support 114-2, and a second outer clamp 114-3 mounted on the guide rail 112.

The second outer slider 114-1 is provided so that it can freely move linearly on the guide rail 112 while being seated on the guide rail 112. At this time, the first rear connecting means 114-4 may protrude from the rear of the second outer slider 114-1, and the second rear connecting means 14-4 is on one side with the switching handle 120, which will be described later. This can be combined.

The extension support 114-2 protrudes from one side of the second outer slider 114-1 toward the outside of the clamping module frame 111, and a second outer clamp 114-3 is provided at its end.

The second outer clamp (114-3) is in contact with the left side of the cable terminal located on the right side of the three cable terminals at the rear of the distribution board, and is shaped so that it is in close contact with the left side of the cable terminal as much as possible. It can be formed in a corresponding form.

Meanwhile, the second outer clamping arm module 114 may be integrally connected to the second inner clamping arm module 116. Therefore, when the second outer clamping arm module 114 is moved linearly to narrow inward, the second inner clamping arm module 116 is also moved linearly inward, and the second outer clamping arm module 114 is widened outward. When it moves linearly, the second inner clamping arm module 116 also moves linearly outward. This will be described later.

The first inner clamping arm module 115 includes a first inner slider 115-1 connected to the first outer slider 113-1, an extension support 115-2, and a first inner clamp 115-3. It is composed by:

The first inner slider 115-1 may be integrally connected to the first outer clamping arm module 113 through the first connecting rod 200. The first inner slider 115-1 is freely moved linearly on the guide rail 112 while seated on the guide rail 112, and is provided to move together with the first outer slider 113-1. An extension support 115-2 protrudes in front of the first inner slider 115-1, and a first inner clamp 115-3 is provided at the end.

The first inner clamp (115-3) is in contact with the right side of the cable terminal located in the middle of the three cable terminals on the rear of the distribution board, and its shape corresponds to the right side of the cable terminal so that it can be as close as possible to the right side of the cable terminal. It can be formed as

The second inner clamping arm module 116 includes a second inner slider 116-1 connected to the second outer slider 114-1, an extension support 116-2, and a second inner clamp 116-3. It is composed by:

The second inner slider 116-1 may be integrally connected to the second outer clamping arm module 114 through the second connecting rod 300. The second inner slider 116-1 is freely moved linearly on the guide rail 112 while seated on the guide rail 112, and is provided to move together with the second outer slider 114-1. An extension support 116-2 protrudes in front of the second inner slider 116-1, and a second inner clamp 116-3 is provided at the end.

The second inner clamp (116-3) is in contact with the left side of the cable terminal located in the middle of the three cable terminals on the rear of the distribution board, and its shape is designed to be in close contact with the left side of the cable terminal as much as possible. It can be formed in a corresponding form.

That is, the first and second inner clamps (115-3, 116-3) of the first and second inner clamping arm modules (115, 116) are in contact with each other in a way that surrounds both sides of the cable terminal located in the center. The first and second outer clamps (113-3, 114-3) of the first and second outer clamping arm modules (113, 114) contact the left and right cable terminals, respectively.

Meanwhile, the first inner clamping arm module 115 is provided with a third connecting rod 400 that protrudes in the direction of the first outer clamping arm module 113. A connecting means 410 is provided at the end of the third connecting rod 400, and the connecting means 410 has a through hole formed so that the end of the second connecting rod 300 penetrates.

Additionally, the second inner clamping arm module 116 is provided with a fourth connecting rod 500 that protrudes in the direction of the second outer clamping arm module 114. A connecting means 510 is provided at the end of the fourth connecting rod 500, and the connecting means 510 has a through hole formed so that the end of the first connecting rod 200 penetrates.

These first and second outer clamping arm modules 113 and 114 and first and second inner clamping arm modules 115 and 116 can be opened or narrowed by a switching handle 120, which will be described later. As follows.

Figure 4 is a diagram showing the process in which the first and second outer clamping arm modules 113 and 114 are opened and the first and second inner clamping arm modules 115 and 116 are narrowed through the switching handle 120, FIG. 5 is a diagram illustrating a process in which the first and second outer clamping arm modules 113 and 114 are narrowed and the first and second inner clamping arm modules 115 and 116 are opened through the switching handle 120.

Referring to FIG. 4, when the user narrows the switching handle 120 inward while holding the switching handle 120, the first and second outer clamping arm modules 113 and 114 of the handy clamping module 110 It also becomes narrower. At this time, the first and second inner clamping arm modules 115 and 116, which are integrally connected to the first and second outer clamping arm modules 113 and 114, respectively, are opened in the opposite direction. This means it is ready for clamping.

In this state, the user clamps the ground clamp 130 to the ground bar provided at the rear of the distribution board, moves to the cable terminal position while holding the switching handle 120, and clamps the first and second outer clamping arm modules 113, 114) and the positions of the first and second inner clamping arm modules 115 and 116 are respectively adjusted to match the positions of the cable terminals.

Referring to Figure 5, when the user opens the switching handle 120 outward when the position adjustment is completed, the first and second outer clamping arm modules 113 and 114 are opened to contact the cable terminals on both sides, respectively. and the first and second inner clamping arm modules 115 and 116 are narrowed to contact the cable terminal at the center, respectively.

At this time, the first and second outer clamping arm modules 113 and 114 and the first and second inner clamping arm modules 115 and 116 are electrically connected to the ground clamp 130 through a cable.

The ground clamp 130 is connected to the first and second outer clamping arm modules 113 and 114 and the lower sides of the first and second inner clamping arm modules 115 and 116 through a separate cable, and is provided at the rear of the distribution board. Clamp the ground bar at the bottom to allow grounding to proceed. At this time, since the handy clamping module 110 and the switching handle 120 are configured to be insulated from each other, the first and second outer clamping arm modules 113 and 114 are connected with the ground clamp 130 clamped to the ground bar. Even if the first and second inner clamping arm modules 115 and 116 are each in contact with three cable terminals, the current conducted during the electric shock operation, discharge operation, and grounding operation is not transmitted to the switching handle 120.

In one embodiment, the switching handle 120 may be provided to be detachable from the first and second rear connecting means 113-4 and 114-4 on the rear of the handy clamping module 110. Therefore, with the three cable terminals clamped through the first and second outer clamping arm modules 113 and 114 and the first and second inner clamping arm modules 115 and 116, the switching handle 120 can be used as a handy type. It can be removed by separating it from the rear connection means of the clamping module 110.

Although the present invention has been described above with reference to preferred embodiments, those skilled in the art can make various modifications and changes to the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. You will understand that it is possible.

100: Handy switchboard discharge and grounding device
110: Handy clamping module
111: Clamping module frame
112: Guide rail
113: first outer clamping arm module
113-1: First outer slider
113-2: Extension support
113-3: First outer clamp
113-4: First rear connecting means
114: second outer clamping arm module
114-1: Second outer slider
114-2: Extension support
114-3: Second outer clamp
114-4: second rear connection means
115: first inner clamping arm module
115-1: First inner slider
115-2: Extension support
115-3: First inner clamp
116: second inner clamping arm module
116-1: Second inner slider
116-2: Extension support
116-3: Second inner clamp
117: Clamping module cover
200: first connecting rod
300: second connecting rod
400: Third connecting rod
410: Connection means
500: Fourth connecting rod
510: Connection means

Claims (6)

A handy clamping module (110) that clamps the cable terminal connected to the load side from the rear of the switchboard to allow electricity generation and discharge to proceed;
It is connected to the handy clamping module 110 and is provided so that the user can grip it. When it opens to both sides, the handy clamping module 110 switches to a clamping ready state, and when it narrows, the handy clamping module 110 ) a switching knob (120) to switch to the clamping state; and
Characterized in that it includes a ground clamp (130) that clamps the ground bar provided at the rear of the distribution board while being electrically connected to the handy clamping module (110) to allow grounding to proceed.
Handy switchgear discharge and grounding device.
According to paragraph 1,
The handy clamping module 110,
Clamping module frame (111);
A guide rail 112 provided in the longitudinal direction inside the clamping module frame 111;
One side is connected to the switching handle 120, and while seated on the guide rail 112, the switching handle 120 is narrowed inward on the guide rail 112 by an opening or narrowing operation. First and second outer clamping arm modules 113 and 114 that open in both end directions;
When seated on the guide rail 112, it is connected to the first and second clamping arm modules 113 and 114, respectively, and the first and second outer clamping arm modules 113 and 114 are narrowed inward. first and second inner clamping arm modules (115, 116) that open when the first and second clamping arm modules (113, 114) open in both end directions and narrow in the inner direction; and
Characterized in that it includes a clamping module cover 117 that covers the side of the clamping module frame 111,
Handy switchgear discharge and grounding device.
According to paragraph 2,
The first outer clamping arm module 113 includes a first outer slider 113-1, an extension support 113-2 extending outward from the first outer slider 113-1, and the extension support 113- It is provided at the end of 2) and includes a first outer clamp (113-3) in contact with the right side of the cable terminal located on the left side of the three cable terminals,
The second outer clamping arm module 114 includes a second outer slider 114-1, an extension support 114-2 extending outward from the second outer slider 114-1, and the extension support 114. It is provided at the end of -2) and includes a second outer clamp (114-3) in contact with the left side of the cable terminal located on the right side of the three cables,
The first inner clamping arm module 115 includes a first inner slider 115-1 connected to the first outer slider 113-1, and an extension support extending forward of the first inner slider 115-1. (115-2) and a first inner clamp (115-3) provided at the end of the extension support (115-2) and in contact with the right side of the cable terminal located in the middle of the three cable terminals,
The second inner clamping arm module 116 includes a second inner slider 116-1 connected to the second outer slider 114-1, and an extension support extending forward of the second inner slider 116-1. (116-2) and a second inner clamp (116-3) provided at the end of the extension support (116-2) and in contact with the left side of the cable terminal located in the middle of the three cable terminals. doing,
Handy switchboard discharge and grounding device.
According to paragraph 3,
The first outer slider 113-1 is connected to the first inner slider 115-1 through a first connecting rod 200,
The second outer slider 114-1 is connected to the second inner slider 116-1 through a second connecting rod 300,
The second connecting rod 300 penetrates the connecting means 410 provided at the end of the third connecting rod 400 protruding from the first inner clamping arm module 115,
The first connecting rod 200 is characterized in that it penetrates the connecting means 510 provided at the end of the fourth connecting rod 500 protruding from the second inner clamping arm module 116.
Handy switchgear discharge and grounding device.
According to paragraph 4,
The first connecting rod 200 passes through the second inner slider 116-1 and is connected to the first inner slider 115-1,
The second connecting rod 300 passes through the first inner slider 115-1 and is connected to the second inner slider 116-1.
Handy switchgear discharge and grounding device.
According to paragraph 2,
The switching handle 120 is,
It is connected to first and second rear connection means (113-4, 114-4) protruding from each rear surface of the first and second outer clamping arm modules (113, 114), and is provided to be detachable. to,
Handy switchgear discharge and grounding device.