KR102246003B1 - Automatic Fault Isolation Device System of 3 Phase Batch Open by electric control - Google Patents

Abstract

The present invention relates to a fixed section automatic opening device (FID: Fault Isolation Device) capable of automatically separating a fault section from a three-phase branch line and automatically shutting it off, and more specifically, to detect a fault current in a branch line in real time. By memorizing the number of occurrences of the failure, the control box controls the automatic opening of the fixed section in a wireless manner when the fault current is detected as many times as the set number of times or the set time elapses from the time the first failure occurs, thereby simultaneously blocking the branch lines connected in three phases. It is possible to prevent facility damage or breakdown of three-phase customers that may occur due to the blockage of only one phase, and in the event of a short power outage, it is possible to remember only the counter or time so that it is not immediately blocked. It relates to a single-phase automatic fault section opening device capable of simultaneous 3-phase simultaneous collective control that can efficiently operate an electricity supply line so that only a momentary power outage occurs by operating a reclosed circuit breaker that prevents a power outage for a long time and automatically re-enters it. .
To this end, a fault section opening device capable of collective control by electric control by applying an electromagnet according to an embodiment of the present invention is individually installed on a three-phase branch line of a distribution line to detect an overcurrent when an overcurrent occurs and to the rear. It detects that the installed circuit breaker is cut off and blocks the branch line.It is provided on one side of the insulating insulator part and an insulating insulator part that prevents overcurrent from being communicated, and blocks electricity so that it is not energized when an overcurrent occurs. A fault section opening device including a fault section separating unit and a control section controlling the fault section opening device to be shut off when an abnormal current occurs more than a certain number of times or after a preset time has elapsed after detecting the initial fault current.

Description

Automatic Fault Isolation Device System of 3 Phase Batch Open by electric control capable of simultaneous 3-phase batch control

The present invention relates to a fixed section automatic opening device (FID: Fault Isolation Device) capable of automatically separating a fault section from a three-phase branch line and automatically shutting it off, and more specifically, to detect a fault current in a branch line in real time. By memorizing the number of occurrences of the failure, the control box controls the automatic opening of the fixed section in a wireless manner when the fault current is detected as many times as the set number of times or the set time elapses from the time the first failure occurs, and blocks the branch lines connected to three phases at the same time. It is possible to prevent equipment damage or breakdown of three-phase customers that may occur when only one phase is blocked, and in the case of a short power outage, it is possible to remember only the counter or time so that it is not immediately blocked. It relates to a single-phase automatic fault section opening device capable of simultaneous 3-phase simultaneous collective control that can efficiently operate an electricity supply line so that only a momentary power outage occurs by operating a reclosed circuit breaker that prevents a power outage for a long time and automatically re-enters it. .

In general, when a line breakdown occurs in a special high voltage distribution line, a CUT OUT FUSED SWITCH (hereinafter referred to as "COS") that is automatically opened when the fuse is blown by a fault current is installed and operated, it breaks in the load side section of the place where the COS is installed. When this occurs, the fuse of the COS is automatically blown by the overcurrent due to the failure, and the power failure due to the failure can be prevented from spreading to the power side section where the COS is installed.

However, three COSs are installed on the three-phase distribution line, and if only one phase fails, only one phase in which the failure occurs is opened to the fuse fuse end, and the three-phase receiver at the load side where the COS is installed is one phase, which results in a three-phase motor. There is a problem that the device is burned out due to overloading.

This COS has a built-in fuse, and when overcurrent flows through the upper connection cap, power is cut off as the fuse is blown, and at the same time, the breakdown section is rotated and opened downward, so that a failure can be visually checked.

In the case of a COS with a built-in fuse as above, if overcurrent flows into one of the branch lines, only one COS is blocked and only a part of the line is cut off, resulting in a high accident rate.The blown fuse must be replaced again, and even when replacing the fuse, the fuse holder The inconvenience of having to re-install the COS FUSE after removing it to the ground and replacing the COS FUSE comes with it.

In order to solve the above problems, prior document 1 (registered patent 10-1801039 cut-out switch system) uses an electromagnet to cut off current when a current sensor detects a current. When the overcurrent is detected, the opposite poles of the two magnetic bodies are converted into the same pole to prevent electricity from flowing.When the two magnetic bodies are separated, the insulating fluid flows through the gap. A configuration capable of cutting off electricity is disclosed.

However, Prior Document 1 requires an insulating fluid to be able to drive the magnetic body while maintaining airtightness inside, and when used for a long period of time, the insulating fluid is deteriorated, resulting in a problem that the insulating effect cannot be exhibited.

In addition, it is necessary to rely on the monitoring panel to check whether or not it is fixed, and even if a failure occurs, there is a problem that it is not possible to check the condition of the failure on the display unit or to remotely monitor the operation condition.

Prior Document 1 (Registration Patent 10-1801039 Cutout Switch System)

The present invention was conceived to solve the above problems, and the fuse is removed in the same structure as the conventional fuse method, and the fault section separation unit is mechanically operated by an electromagnet at the location where the fuse is installed. It is melted and can perform the same operation as the separation part of the fault section is rotated to the lower part, and by this operation, the same visual confirmation as before is possible, and in applying to the commonly applied three-phase branch line, there are three failures. Occurs when the number of failure detections is accumulated over a certain number of times according to the number of line failure detections detected by the control unit, or when the power failure time passes after the initial failure current is detected, three phases are simultaneously cut off and only a part is cut off. An object of the present invention is to provide a single-phase type automatic failure section opening device capable of simultaneous three-phase simultaneous collective control capable of wireless control as well as preventing failures or accidents.

A single-phase automatic fault section opening device capable of simultaneous 3-phase collective control according to an embodiment of the present invention for solving the above problems is individually installed on the three-phase branch line 20 of the distribution line 10. When an overcurrent occurs, it is opened and blocks the branch line, and is provided to rotate on one side of the insulating insulator part 110 and the insulating insulator part 110 to prevent overcurrent from communicating, so that electricity is not energized when an overcurrent occurs. A fault section opening device 100 including a fault section separation unit 120 which is rotated and opened while being rotated; And a control unit 200 for controlling the fault section opening device 100 to simultaneously shut off three phases when an abnormal current occurs more than a certain number of times or at a set time after the initial fault occurs.

Here, the insulating insulator part 110 includes an upper connection terminal 111 provided at a position where electricity flows from the branch line 20 to receive electricity from the branch line 20, and the upper connection terminal 111 The lower connection terminal 112 is provided at a predetermined distance from the upper connection terminal 111 to conduct electricity flowing into the upper connection terminal 111, and is integrally provided with the upper connection terminal 111 to prevent the An upper contact bracket 113 that conducts electricity to the fault section separating part 120 while supporting the upper part, and is integrally provided with the lower connection terminal 112 to support the lower part of the fault section separating part 120 In the case of including the lower contact bracket 114, the lower contact bracket 114 is provided to be rotated downward at all times by a spring, and when an overcurrent occurs, the fault section separating section ( It characterized in that it comprises a blocking bracket (114a) for separating the 120) from the branch line (20).

At this time, the fault section separation unit 120 is provided on the branch line 20 to conduct electricity and is provided inside the conductive tube 121 and the conductive tube 121 when an overcurrent occurs. The blocking unit 122 is separated from the branch line 20 to block electricity from being energized, and the blocking unit 122 is provided to surround the outside of the blocking unit 122 to protect the blocking unit 122 while operating the blocking unit 122 A housing 123 that is configured, an upper contact cap 124 provided at the upper end of the conductive tube 121 to conduct electricity from the upper portion through the conductive tube 121, and a lower end of the upper contact cap 124 A lower contact terminal 125 provided in the upper contact cap 124 to conduct electricity flowing into the upper contact cap 124, and a rechargeable battery 126 provided inside the housing 123 to provide power to operate the blocking unit 122 And a control board 127 connected to the rechargeable battery 126 and the blocking unit 122 to selectively transmit power from the rechargeable battery 126 to the blocking unit 122 and control the operation of the blocking unit 122. It is characterized by that.

Here, the blocking part 122 is operated by an electromagnet, and is fixedly installed on the inner upper part of the housing 123 to change the polarity according to the control of the control board 127, and the fixed contactor 122a. A flow contactor that is provided under the contactor 122a to maintain a contact state with the fixed contactor 122a according to the polarity of the fixed contactor 122a, and is spaced apart from the fixed contactor 122a when the polarity of the fixed contactor 122a is changed. Including (122b), the lower portion of the flow contactor (122b) is connected to the blocking bracket (114a), when the polarity of the fixed contact (122a) and the flow contact (122b) are different from each other, the blocking bracket (114a) is When the polarity of the fixed contactor 122a and the floating contact 122b is the same when the polarity of the fixed contactor 122a and the floating contact 122b is the same when an overcurrent occurs while maintaining electricity while the fault section separation unit 120 is connected to the insulating insulator unit 110 by pulling it, the floating contactor ( 122b) is separated from the fixed contact and releases the blocking bracket 114a, and when the blocking bracket 114a is rotated downward by the spring, the fault section separation unit 120 is separated from the insulating insulator unit 110 to block electricity. It is characterized by having.

And the control unit 200 wirelessly communicates with the fault section opening device 100 and detects an abnormal current detected by the fault section opening device 100 in real time, and when a current is detected more than a certain number of times, the fault section opening device 100 ), the communication unit 210 capable of controlling to be cut off, the memory unit 220 for storing the number of occurrences of the abnormal current collected by the communication unit 210, and the abnormal current by the number of times set in the memory unit 220 When detected, the command unit 230 for generating a command to shut off the fault section opening device 100 through the communication section 210 and the number of times stored in the memory section 220 are set, or the fault section opening device by an abnormal current It characterized in that it includes an operation panel 240 capable of initializing the stored number of times when the 100 is cut off and then installed again, and displaying the detected abnormal current in real time.

In addition, when the fault section separation unit 120 is opened, the control unit 200 supplies power to the blocking unit 122 again, so that the fixed contactor 122a and the floating contactor 122b are kept in contact again, It is characterized in that it is possible to resume the energization by connecting the fault section separation unit 120 back to the energization position without the need to replace the fuse.

The single-phase automatic fault section opening device capable of simultaneous 3-phase simultaneous collective control according to an embodiment of the present invention has the following effects.

First, it operates in the same way as the conventional fuse method, so that it is possible to easily check whether or not the fault section is opened with the naked eye.

Second, the failure section can be separated by an electromagnet method, so that inconvenience caused by replacing an existing fuse can be solved, and cost can be reduced.

Third, the open fault section opening device (FID) has an electromagnet structure, which temporarily cuts off the power and releases the magnetic force from the electromagnet to open it and then turn on the power again to resume operation without replacing the fuse due to the self-weight of the electromagnet. There is an effect that can be.

Fourth, since the three-phase branch lines can be simultaneously blocked and controlled to open mechanically, there is an effect of preventing equipment failure or accidents that may occur when only specific branch lines are blocked.

Fifth, instantaneous power failure such as when a certain number of abnormal currents are detected by the memory when controlling a branch line, or when three phases are simultaneously opened and reclosed momentarily after a set time elapses after the initial fault current is detected. It has the effect of preventing unnecessary power outages by operating so that it is not opened to failure.

Sixth, it is possible to easily apply a fault section opening device (FID) to an existing branch line and replace the COS fuse holder with a fault section opening device (FID) to operate, thereby reducing costs by reusing the existing facilities. There is.

1 is a use state diagram showing a state in which a single-phase automatic fault section opening device capable of simultaneous 3-phase simultaneous collective control according to an embodiment of the present invention is installed on a telephone pole
2 is an overall perspective view of a single-phase automatic fault section opening device capable of simultaneous 3-phase simultaneous collective control according to an embodiment of the present invention
3 is an exploded perspective view of a single-phase automatic fault section opening device capable of simultaneous 3-phase simultaneous collective control according to an embodiment of the present invention
4 is a cross-sectional view showing only a fault section separation unit in a single-phase automatic fault section opening device capable of simultaneous 3-phase simultaneous collective control according to an embodiment of the present invention.
5 is a block diagram showing in detail a control unit in a single-phase automatic failure section opening apparatus capable of simultaneous 3-phase simultaneous collective control according to an embodiment of the present invention.
6 is a use state diagram showing a state in which a single-phase automatic fault section opening device capable of simultaneous 3-phase simultaneous collective control according to an embodiment of the present invention conducts electricity.
7 is a use state diagram showing a state in which a single-phase automatic fault section opening device capable of simultaneous 3-phase collective control according to an embodiment of the present invention is cut off by an abnormal current

The present invention relates to an FID installed on a three-phase branch line of a special high voltage distribution line and capable of automatically separating a faulty section. In particular, while being driven by an electromagnet, a three-phase branch line can be simultaneously controlled by wireless communication, and real-time A single-phase automatic fault section opening capable of simultaneous 3-phase collective control that can simultaneously detect an abnormal current and cut off the three-phase branch line at the same time, and can also be applied to the existing Fault Section Opening Device (FID). It characterized in that it relates to a device.

Hereinafter, a single-phase automatic fault section opening device capable of simultaneous 3-phase simultaneous collective control according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a use state diagram showing a state in which a single-phase automatic fault section opening device capable of simultaneous 3-phase simultaneous control according to an embodiment of the present invention is installed on a telephone pole, and FIG. 2 is a three-phase simultaneous according to an embodiment of the present invention. It is an overall perspective view of a single-phase automatic failure section opening apparatus capable of collective control, and FIG. 3 is an exploded perspective view of a single-phase automatic failure section opening apparatus capable of simultaneous three-phase collective control according to an embodiment of the present invention.

1 to 3, the present invention is largely configured to include an FID (100) and a control unit (200).

The fault section opening device (FID) 100 is made of an insulator and is provided on one side of the insulating insulator part 110 and an insulating insulator part 110 supporting between terminals through which electricity is energized in the branch line 20 Including a fault section separation unit 120 that is installed so that electricity can be energized between the terminals supported by the insulating insulator unit, so that electricity is energized during normal times and then is separated from the terminals when an abnormal current such as an overcurrent occurs and blocks electricity. It is composed.

Here, the insulating insulator part 110 is provided at an upper portion through which electricity is energized in the branch line 20 and the upper connection terminal 111 through which electricity is introduced, and the lower portion opposite to which the upper connection terminal 111 is provided. The lower connection terminal 112 is provided to supply the electricity to the upper connection terminal 111 through the fault section separation unit 120 to supply household or industrial electricity, and the fault section is separated from the upper connection terminal 111 The upper contact bracket 113 is provided to extend toward the part 120 and supports the fault section separating section 120 so as to conduct electricity to the upper end of the fault section separating section 120 while conducting electricity, and the lower connection terminal It is provided to extend from 112 to the side of the fault section separation unit 120, and electricity flowing through the upper contact bracket 113 is energized to the lower wire side of the branch line 20 after the breakdown section separation unit 120 is energized. It is provided so as to be energized, and is provided in the middle between the upper connection terminal 111 and the lower connection terminal 112 and a lower contact bracket 114 that supports the lower end of the fault section separation unit 120 so as to be rotatable. It is configured to include an installation bracket 115 that is connected to the furnace 10 or the telephone pole and fixedly supports the failure section opening device (FID) 100.

Here, the lower contact bracket 114 is always installed to face downwards by the elasticity of the spring, and when normal electricity is energized, the fault section separating section 120 is connected to the lower end of the fault section separating section 120 While supporting so as not to be separated from the upper contact bracket 113, when abnormal current such as overcurrent is generated and the fault section separating section 120 is cut off, the fault section separating section 120 is rotated downward by the elasticity of the spring, and the fault section separating section 120 is brought into upper contact. A blocking bracket 114a is further provided to block electric current as it is separated and separated from the bracket 113.

As a result, it is possible to prevent accidents caused by overcurrent by allowing normal electricity to be energized during the process of being energized, but by physically shutting off the power line itself when abnormal currents such as overcurrents occur, and in the event of a failure, it is possible to easily identify them with the naked eye. .

4 is a cross-sectional view showing only a fault section separation unit in a fault section opening device (FID) capable of collective control by electric control by applying an electromagnet according to an embodiment of the present invention.

Referring to FIG. 4, the fault section separation unit 120 is connected and installed between the upper contact bracket 113 and the lower contact bracket 114, so that electricity between the upper contact bracket 113 and the lower contact bracket 114 When an abnormal current such as an overcurrent occurs while the conductive tube 121 is provided inside the conductive tube 121 and is operated by an electromagnet, when a cutoff command is transmitted from the control unit, the conductive tube 121 is connected to the upper contact bracket 113 A blocking unit 122 that is separated between the and the lower contact bracket 114 to block the electric current, and is provided to surround the outside of the blocking unit 122 to protect the blocking unit 122 from external factors to prevent malfunction. An upper contact cap 124 provided on the upper end of the housing 123 and the conductive tube 121 to connect and support the conductive tube 121 and the upper contact bracket 113 so as to be energized, and the conductive tube 121 A lower contact terminal 125 provided at the lower end of and supporting while connecting the conductive tube 121 and the lower contact bracket 114, and the power to operate the blocking part 122 provided inside the housing 123 Control to control the blocking unit 122 according to a signal transmitted from the control unit 200 while connecting the charging battery 126 and the blocking unit 122 by being installed inside the rechargeable battery 126 and the housing 123 to provide It is configured to include a substrate 127.

Here, the blocking part 122 is operated by an electromagnet, and fixedly installed on the upper contact cap 124 side to change the polarity according to the control of the control board 127 and the fixed contactor 122a and the fixed contactor ( When the polarity is different from that of the fixed contactors 122a, they are kept in close contact with each other by pulling forces, and then the fixed contactor 122a and the floating contactor 122b face each other under the control of the control substrate 127. If the polarity of the beam is converted to the same polarity, they are pushed and separated from each other.

At this time, the flow contactor (122b) is connected to the blocking bracket (114a) installed on the lower contact bracket (114) of the insulating insulator portion (110) by means such as a wire, the fixed contact (122a) and the flow When the contactors 122b have different polarities and are pulled so as to be in close contact, the blocking bracket 114a is kept in close contact with the lower contact terminal 125 of the fixed section separating unit 120 to maintain an energized state. When an abnormal current such as an overcurrent is detected from 200), the polarity of the fixed contactor 122a and the floating contact 122b is changed to change the polarity of the fixed contactor 122a and the floating contactor 122b, As 122b) is separated from the fixed contactor 122a, the blocking bracket 114a is released, and the fault section separation part 120 is separated from the upper contact bracket 113 of the insulating insulator part 110, and the lower contact terminal contacts the lower part. As the bracket 114 rotates while being caught, the fault section separation unit 120 is separated, thereby physically blocking the power supply.

Here, a certain number of times detects the number of failures, accumulates the number of times within a predetermined time, sets the appropriate number of 1 to 4 times, and immediately opens when the set number of times reaches the set number of times to block power.

In addition, the set time is set to an appropriate time from 5 to 180 seconds after the first detection of a fault, and when the time elapses, it is automatically opened immediately to cut off the power supply.

Meanwhile, a solar panel 300 performing a power generation function using sunlight is further provided above the control unit 200.

The solar panel 300 can perform a charging function separately from direct power supply by charging the rechargeable battery 126 using sunlight during the day.

As a result, when a normal current is applied, the current state is stably maintained, and when an abnormal current such as an overcurrent is detected through the control unit 200, the occurrence of a temporary abnormal current is only countered, and when an abnormal current for the set number of times is detected, it is determined as a failure. Thus, it is possible to block the three-phase branch line 20 at the same time to prevent a power failure due to a temporary abnormal current while minimizing the damage caused by the abnormal current when the abnormal current is continuously generated.

5 is a block diagram showing in detail a control unit in a fault section opening device (FID) capable of collective control by electric control by applying an electromagnet according to an embodiment of the present invention.

5, the control unit 200 communicates with the failure section separation unit 120 in real time while monitoring and controlling the failure section separation unit 120, and the communication unit 210 While recording the abnormal current detected by the memory unit 220 for storing and controlling the state of the fault section separation unit 120 compared with the set number of detections, the abnormal current is detected as many times as set in the memory unit 220 Then, the state of the command unit 230 and the communication unit 210 and the memory unit 220 for generating a command capable of operating the blocking unit 122 by transmitting this to the control board 127 side of the fault section separation unit 120. ) While guiding the situation in real time, initializing the number of detection of abnormal current recorded in the memory unit 220, or setting the number of detection of abnormal current for operating the blocking unit 122, and displaying the status in real time ( 240).

Accordingly, even if the manager does not always monitor, it is possible to automatically detect the number and frequency of occurrence of abnormal current, and automatically control the fault section separation unit 120 according to the detected value, and notify the manager in real time. .

6 is a use state diagram showing a state in which a fault section opening device (FID) capable of collective control by electric control by applying an electromagnet according to an embodiment of the present invention conducts electricity.

Referring to FIG. 6, when a normal current is applied, the fault section separation unit 120 continuously conducts electricity while being connected to the insulating insulator unit 110 at the correct position.

At this time, the upper part of the conductive tube 121 is connected to the upper contact bracket 113 by the upper contact cap 124 to allow electricity to flow in, and the lower part is connected to the distribution line 10 by the lower contact terminal 125. .

This makes it possible to stably maintain an energized state of electricity.

7 is a use state diagram showing a state in which a fault section opening device (FID) capable of collective control by electric control by applying an electromagnet according to an embodiment of the present invention is cut off by an abnormal current.

Referring to FIG. 7, when an abnormal current such as an overcurrent is detected as many times as set in the control unit 200, the blocking unit 122 is operated, and the fault section separation unit 120 is separated from the insulating insulator unit 110.

At this time, the blocking unit 122 releases the blocking bracket 114a from supporting the failure section separation unit 120 by the operation of the electromagnet, so that the blocking bracket 114a returns to its original position, so that the failure section separation unit 120 Is separated from the insulating insulator unit 110 and rotated to separate.

Such an operation is applied equally to the three-phase branch line 20 by the control unit 200, so that the three-phase branch line 20 is blocked at the same time, thereby preventing breakdowns or accidents that may occur due to being partially blocked. You will be able to.

The present invention made as described above is a conventional problem by simultaneously blocking the three-phase branch line when an abnormal current such as overcurrent occurs while supplying electricity by receiving electricity from each of the three-phase branch lines in supplying electricity to homes or industrial sites. It is possible to prevent equipment failure or safety accidents that may occur as only one branch line among the three-phase branch lines is blocked, and while monitoring the electricity applied from the branch line in real time, it detects temporary overcurrent or abnormal current and cuts it off immediately. The three-phase branch line can be cut off at the same time when the three-phase branch line is detected for a set number of times, so that a temporary power failure due to a minor abnormal current can be prevented.

10: distribution line 20: branch line
100: fault section opening device 110: insulation insulator part
111: upper connection terminal 112: lower connection terminal
113: upper contact bracket 114: lower contact bracket
114a: blocking bracket 115: mounting bracket
120: fault section separation unit 121: conductive tube
122: blocking part 122a: fixed contact
122b: floating contact 123: housing
124: upper contact cap 125: lower contact terminal
126: rechargeable battery 127: control board
200: control unit 210: communication unit
220: memory unit 230: command unit
240: operation panel 300: solar panel

Claims (6)

Each of the three-phase branch lines 20 of the distribution line 10 is individually installed to open when an overcurrent occurs and blocks the branch line, and an insulating insulator part 110 that prevents overcurrent from being communicated, and the insulating insulator part A fault section opening device 100 including a fault section separation unit 120 which is provided to be rotated on one side of 110 and is rotated and opened while blocking electricity from being energized when an overcurrent occurs; And
Including; a control unit 200 for controlling the fault section opening device 100 to simultaneously shut off three phases when an abnormal current occurs more than a certain number of times or at a set time after the initial fault occurs,
The insulating insulator part 110 is provided at a position where electricity is introduced from the branch line 20 to receive electricity from the branch line 20, and the upper connection terminal 111 and the upper connection terminal 111 are fixed. A lower connection terminal 112 provided spaced apart from each other to conduct electricity flowing into the upper connection terminal 111 and the upper connection terminal 111 are integrally provided to the upper part of the fault section separation unit 120 An upper contact bracket 113 that conducts electricity to the fault section separating part 120 while supporting, and a lower contact that is provided integrally with the lower connection terminal 112 to support the lower part of the fault section separating part 120 In the case of including the bracket 114, the lower contact bracket 114 is provided to be rotated downward at all times by a spring, so that the fault section separating section 120 by the operation of the fault section separating section 120 when an overcurrent occurs. It includes a blocking bracket (114a) for separating from the branch line (20),
The fault section separation unit 120 is provided on the branch line 20 to conduct electricity, and is provided inside the conductive tube 121 to connect the conductive tube 121 to the branch line when an overcurrent occurs. A blocking unit 122 that separates from 20 to block electricity from being energized, and a housing configured to surround the outside of the blocking unit 122 to operate the blocking unit 122 while protecting the blocking unit 122 123, an upper contact cap 124 provided at the upper end of the conductive tube 121 to conduct electricity from the upper portion through the conductive tube 121, and provided at the lower end of the upper contact cap 124 A lower contact terminal 125 configured to conduct electricity flowing into the upper contact cap 124, a rechargeable battery 126 provided inside the housing 123 to provide power to operate the blocking unit 122, and the It includes a control board 127 connected to the rechargeable battery 126 and the blocking unit 122 to selectively transmit the power of the rechargeable battery 126 to the blocking unit 122 and control the operation of the blocking unit 122,
The blocking part 122 is operated by an electromagnet, and is fixedly installed on the inner upper part of the housing 123 to change the polarity according to the control of the control board 127 and the fixed contactor 122a and the fixed contactor ( A fluid contactor 122b provided below 122a) to maintain a contact state with the fixed contactor 122a according to the polarity of the fixed contactor 122a, and spaced apart from the fixed contactor 122a when the polarity of the fixed contactor 122a is changed. ), but the lower portion of the flow contactor 122b is connected to the blocking bracket 114a, and when the polarities of the fixed contactor 122a and the flow contactor 122b are different from each other, the blocking bracket 114a is pulled. When the fault section separating unit 120 is connected to the insulating insulator unit 110 and maintains electricity to be energized, and when an overcurrent occurs, when the polarities of the fixed contactor 122a and the floating contactor 122b are the same, the floating contactor 122b When the blocking bracket 114a is released while being spaced apart from the fixed contactor and the blocking bracket 114a is rotated downward by a spring, the fault section separation unit 120 is separated from the insulating insulator unit 110 to block electricity,
The control unit 200 wirelessly communicates with the fault section opening device 100 and detects an abnormal current detected by the fault section opening device 100 in real time, and when a current is detected more than a certain number of times, the fault section opening device 100 A communication unit 210 capable of controlling the system to be blocked, a memory unit 220 that stores the number of occurrences of the abnormal current collected by the communication unit 210, and an abnormal current detected by the number of times set in the memory unit 220 If so, the command unit 230 for generating a command to shut off the fault section opening device 100 through the communication section 210 and the number of times stored in the memory section 220 are set, or the fault section opening device ( 100) is shut off and then reinstalled, the memorized number can be initialized, and the operation panel 240 can display the detected abnormal current in real time,
A solar panel 300 performing a power generation function using sunlight is further provided on the upper part of the control unit 200,
The solar panel 300 may perform a charging function separately from direct power supply by charging the rechargeable battery 126 using sunlight during the day,
When the fault section separating unit 120 is opened, the control unit 200 supplies power to the blocking unit 122 again, so that the fixed contactor 122a and the floating contactor 122b are kept in contact with each other, so that the fuse is opened. A single-phase fault section automatic opening device capable of simultaneous 3-phase collective control, characterized in that it is possible to resume power by connecting the fault section separation unit 120 back to the energized position without the need for replacement.
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