KR101783348B1 - Protective Device for Bypass Cable Joint of Uninterruptible Power Construction - Google Patents

Abstract

According to a protection box for an uninterruptible bypass cable connection unit in which an alarming device for preventing malfunction and warning under construction is embedded, a danger warning under construction is displayed in the protection box for a bypass cable connection unit, thereby enhancing safety by checking whether there is a live line state in the construction of an uninterruptible bypass cable in real time. The prevent invention can enhance the safety and prevent the malfunction to previously prevent casualties due to an electric shock accident, an outlet failure accident, etc. by stopping the unauthorized dangerous work of a corresponding worker by informing not only the corresponding worker but also persons concerned with the surrounding work of the warning by operating the alarming device to give a powerful audible warning when the worker tries to open a cover of the protection box for the connection unit to dismantle and separate a cable of the protection box for the connection unit by the non-recognition and overlook of the worker in spite of the visual warning of a light emitting device to inform the worker of a conduction state (under construction).

Description

{Protective Device for Bypass Cable Joint of Uninterruptible Power Construction}

The present invention relates to a protection box for an uninterruptible bypass cable connection part incorporating a warning and erroneous operation prevention alarm during construction, and more particularly, to a protection box for a bypass cable connection part, It is possible to increase the safety according to whether the state of the bypass cable is real-time or not. When the bypass cable is in the live state, The present invention relates to an uninterruptible bypass cable connection portion protection box incorporating a warning and erroneous operation prevention alarm device for preventing an erroneous operation such as detaching a connector.

As electric power demand has surged, electric power facilities corresponding thereto have been continuously expanded. As the demand level of electric power users has increased, momentary power outage has become a subject of complaints, and group actions of electric users such as compensation claims, The uninterruptible power supply method is being carried out in which the power is not cut off in order to supply good quality power during the power distribution.

The conventional uninterruptible power distribution system consists of a mobile transformer, a by-pass cable system, and a construction switching system. However, the bypass cable system requires cable cars, cables necessary for work sections, , A mobile transformer car, a live bucket truck, and a hot air line, and install a bypass cable to bypass the supply of electricity. Replace and replace the power line, and remove the bypass cable again. Is completed.

In addition, the 22.9kV distribution line which requires perfect safety working condition, the straight line and branch connection which applies bypass cable method of uninterruptible construction and the system to monitor and manage it are very vulnerable to safety in terms of material and safety management There are cases of power failure and safety accidents by unauthorized manipulation of straight line and branch connection by arbitrary judgment by human error such as operator's error, illusion, oblivion, unconsciousness, etc., There is a possibility that there is a possibility of a mistake, a fatal accident such as an electric shock or an image, and an additional power failure may occur.

Korean Patent Laid-Open Publication No. 10-2012-0010370

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a cable connection terminal for a bypass cable connection part, It is possible to increase the safety according to the real time confirmation of the bypass cable and to generate an alarm sound when the cover of the protection box is open when the bypass cable is in the live state, And an uninterruptible bypass cable connection part protection box incorporating a warning during construction and an erroneous operation prevention alarm device so as to prevent erroneous operation such as disconnection.

In order to accomplish the above object, an uninterruptible bypass cable connector protection housing incorporating a warning and erroneous operation prevention alarm device according to the present invention is characterized in that a cover of a connector protecting compartment in which a connecting portion of a bypass cable is installed during construction of an uninterruptible bypass cable A hazard display device for visually displaying whether the bypass cable is in a live state or not in a closed state; And an alarm device for generating an alarm when the cover of the connection part protection box is opened when the bypass cable is in a live state.

A case having a connection part sensing part for sensing whether a connection part is present in the seating guide, the case having a connection part of a three-phase bypass cable, And a lid which is hinged to one side of the case and is rotatably mounted to cover the upper portion of the case so as to be hermetically sealed; The danger display device and the alarm device may be provided on the cover.

The connection part protection box may further include an opening sensing part for informing the user when the cover is opened from the case.

The hazard display device includes a first power switch for supplying driving power of the hazard display device and a status indicator for visually indicating whether the bypass cable is in a live state or not, The alarm device includes a second power switch provided at an upper portion of the lid for supplying driving power to the alarm device and an operation inhibition notifying part informing an alarm according to the opening of the lid of the connection part protective case when the bypass cable is in a live state Lt; / RTI >

The hazard display device is provided at a lower portion of the cover, and includes a first power switch for supplying driving power of the hazard display device and a status indicator for visually displaying whether the bypass cable is in a live state or not. The alarm device includes a second power switch provided at an upper portion of the lid for supplying driving power to the alarm device and an operation inhibition notifying part informing an alarm according to the opening of the lid of the connection part protective case when the bypass cable is in a live state Lt; / RTI >

According to the protection of the uninterruptible bypass cable connection part incorporating the warning and erroneous operation prevention alarm device according to the present invention as described above, it is possible to display a danger warning during the construction of the bypass cable connection part, The safety of the state can be enhanced in real time, and the visual warning of the light emitting device informing of the energized state (under construction) can be enhanced. In this case, By operating a warning device that emits a powerful audible alarm at the moment of attempting to open, it alerts not only the concerned operator but also the persons concerned with the surrounding work, to stop the work of the corresponding worker to prevent unauthorized work, A safety measure to prevent And it has the effect of allowing the erroneous operation can be prevented.

FIG. 1 is a perspective view illustrating an uninterruptible bypass cable straight line connection protection box incorporating a warning alarm during construction and an erroneous operation prevention alarm device according to an embodiment of the present invention,
FIG. 2 is an internal perspective view illustrating an uninterruptible bypass cable straight line connection protection box incorporating an in-construction warning and erroneous operation prevention alarm device according to an embodiment of the present invention,
3 is a circuit diagram illustrating an operation procedure of the uninterruptible bypass cable connection part protection box incorporating an in-construction warning and erroneous operation prevention alarm device according to an embodiment of the present invention,
FIG. 4 is a perspective view showing another embodiment of an uninterruptible bypass cable branch connection protection box incorporating an alarm under construction warning and erroneous operation prevention alarm according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings in order to facilitate a person skilled in the art to easily carry out the present invention.

Bypass cable construction method is to connect the power source and load side of the construction section with the construction switch and bypass cable temporarily while supplying the branch line, extra high voltage accommodation, And construction method.

To summarize the standard work procedure of the bypass cable construction method, first, the necessary equipment and equipment are prepared, the field check, the work section traffic is controlled, and the air condition is organized and checked.

Then, notify the distribution center or the distribution operation room, measure the load current, and conduct the safety meeting before work.

Then, the construction switch is checked and installed, intermediate and branch cables are installed, and intermediate cable connection and branch cable connection are performed.

Next, the cable insulation measurement is performed, the neutral line and the power line protection are carried out, the granular cable fixing device is installed to install the granular cable, and the granular cable is connected to the power line during installation of the constructional gate switch.

Subsequently, the construction switch is turned on, the flywheel is connected to the power line of the branch line, the jumper wire cutting and the pole transformer COS are opened, and the operation section is grounded and grounded to perform this operation. , Proceeding in the order of demolition work.

At this time, the existing bypass cable connection box protection box is very vulnerable to Fail Safe and Fool Proof, and there are few safety countermeasures to prevent safety enhancement and erroneous operation compared with the importance of the process. State.

That is, since there is no live status display device for the connection protection box, it is impossible to confirm whether the bypass cable is live or energized during construction, so that a safety accident may occur due to human error such as misunderstanding, error or forgetting.

In addition, since the protection cover can be opened even when the cable is live and energized, the bypass cable can be separated from the protection by protecting it, so that it is possible to prevent the bypass cable from being damaged by mistake, mistake, forgetfulness, Safety accidents may occur.

Especially, when the bypass cable is live, it can cause a very serious safety accident such as electric shock, burn, power outage, etc. The shock / .

1 and 2, the uninterruptible bypass cable straight line connection protecting box 1 according to an embodiment of the present invention includes a case 2 disposed at a lower portion thereof, A cover 3 located in the housing 2, a danger display device, and an alarm device.

The case 2 is formed as a rectangular housing, and a seating guide is formed concavely downwardly so that the connecting portions of the three-phase bypass cables are embedded and seated, respectively.

The seating guide is provided with a connection part sensing part 20 which is a sensor for sensing whether the connection part of the bypass cable is in close contact with the seating guide.

The lid 3 is hingedly coupled to the case 2 on one side of the case 2 so as to be rotatable and covers the upper side of the case 2 to be hermetically closed.

The danger display device is provided on one side of the upper surface of the lid 3 so that the connecting portion of the bypass cable is housed in the case 2 and the lid 3 of the connecting portion protecting case 1 is closed, A first power switch 4 for visually displaying whether or not the live wire is in a state of being supplied with driving power of the danger display device, a status display portion 5 for visually displaying whether or not the bypass cable is in a live state, And a first test switch 6 for confirming whether or not it is in an operating state.

The alarm device is provided on the other side of the upper surface of the lid 3 so that when the lid 3 of the connection part protection case 1 is opened from the case 2 when the bypass cable is in a live state, A second power switch 7 for supplying the driving power of the alarm device and an operation prohibition notifying unit 8 for informing an alarm when the cover 3 of the connection portion protecting case 1 is opened when the bypass cable is in a live state, And a second test switch 9 for confirming whether the danger display device is in operation or not.

The danger display device and the alarm device are supplied with driving power from the built-in battery 25.

The connection protecting box 1 further includes an opening detecting unit 30 which is a sensor for notifying the user that the lid 3 is opened from the case 2. [

The danger display device is provided on the lower surface of the lid 3 in the same configuration as that provided on the upper surface of the lid 3. [

Similarly, the alarm device is provided on the lower surface of the lid 3 in the same configuration as that provided on the upper surface of the lid 3. [

As described above, in the state that the cover 3 of the connection portion protection box 1 in which the connection portion of the bypass cable is built during construction of the uninterruptible bypass cable is closed, as shown in Fig. 3 As the connection portion of the bypass cable is embedded in the case 2 and is seated on the seat guide, the sensor signal by the connection portion sensing portion 20 is transmitted to the processing unit 21, And transmits a sensor signal as an input of '1' to one input terminal of the AND gate 40 provided on the circuit.

At this time, the status display unit 5 displays the indication 'under construction' by turning on the LED so that the bypass cable can be informed that it is in the live state during energization.

At the same time, since the cover 3 is closed, the sensor unit 1 is input with the input of '1' to the other input terminal of the AND gate 40, The operation prohibition notifying section 8 causes the LED to be lit up to display an indication "operation prohibited" so that the lid 3 of the connection section protection box 1 is not opened when the bypass cable is in the live line state.

At this time, since the two inputs of the AND gate 40 are 1, the output becomes 1, so that the alarm does not sound through the operation prohibition notifying part 8.

When the bypass cable is impacted from the outside and the connection part of the bypass cable is detached from the connection part sensing part 20 when the bypass cable is in a live state, the processing device 21 is disconnected from the connection part sensing part 20 The AND gate 40 receives an output of the sensor signal as an input to one input terminal of the AND gate 40 provided on the circuit, .

Likewise, when the lid 3 of the connection part protection box 1 is opened from the case 2 in the live state of the bypass cable, the sensor signal from the opening sensing part 30 is supplied to the AND gate 40, And the output of the AND gate 40 becomes '0', so that an alarm is generated through the operation prohibition notifying unit 8.

When the connection part of the bypass cable is detached from the connection part sensing part 20 and the cover 3 of the connection part protection case 1 is opened from the case 2, the AND gate 40 outputs '0' And the output of the AND gate 40 becomes '0', and an alarm is generated through the operation prohibition notifying unit 8. [

As shown in FIG. 1, the linear connector protecting box 1 according to the present invention is not only a case in which the bypass cable is provided in the longitudinal direction, but also a case in which the branch cable is arranged in the vertical direction The branch case 10 may be protected from the branch connection by protruding upward.

Reference numeral 11 denotes a bypass intermediate cable outlet, and reference numeral 12 denotes a bypass branch cable outlet.

According to the protection of the uninterruptible bypass cable connection part incorporating the warning and erroneous operation prevention alarm device of the present invention as described above, it is possible to prevent the unauthorized use of the uninterruptible bypass cable, Bypass cable connection in the state When the protection box is misjudged and the cable is moved and dismantled, the danger warning is visually displayed by the light emitting device in the protection box of the bypass cable connection part so that the construction of the uninterruptible bypass cable Safety can be enhanced by warning the operator of safety warnings as the presence or absence of the live wire status is monitored in real time.

In addition, the visual warning of the light emitting device that indicates the already-energized state (under construction), the operator continues to operate the warning device that emits a strong visual-auditory warning immediately after attempting to open the cover of the connection- It is possible to prevent an accidental operation such as an electric shock accident and a human error such as an electric power failure by preventing the worker from unauthorized work by issuing an alarm for the worker and surrounding workers.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of illustration, It will be readily apparent that various substitutions, modifications, and alterations can be made herein.

1: Protect the connection 3: Cover
4: first power switch 5: status indicator
6: first test switch 7: second power switch
8: Operation prohibition notification part 9: Second test switch

Claims (5)

There is provided a hazard display device for visually displaying whether or not the bypass cable is in a live state in a state in which a cover of a connection protecting compartment in which an uninterruptible bypass cable is connected with a connecting portion of a bypass cable is closed;
And an alarm device for generating an alarm when the cover of the connection part protection box is opened when the bypass cable is in a live state, characterized in that an uninterruptible bypass cable connection part protection box ≪ / RTI >
A case having a connection part sensing part for sensing whether a connection part is present in the seating guide, the case having a connection part of a three-phase bypass cable, And a lid which is hinged to one side of the case and rotatably mounted to cover the upper portion of the case so as to be hermetically sealed;
The danger display device and the alarm device are provided on the cover;
The connection protection box may further include an open sensing part for informing the user when the cover is opened from the case. delete delete The hazard display device according to claim 1, wherein the hazard display device is provided at an upper portion of the cover, and includes a first power switch for supplying driving power of the hazard display device and a status indicator for visually indicating whether the bypass cable is in a live state Configured; The alarm device includes a second power switch provided at an upper portion of the lid for supplying driving power to the alarm device and an operation inhibition notifying part informing an alarm according to the opening of the lid of the connection part protective case when the bypass cable is in a live state It protects uninterruptible bypass cable connection part with built-in warning and erroneous operation prevention alarm system. The hazard display device according to claim 1, wherein the hazard display device is provided at a lower portion of the cover and includes a first power switch for supplying driving power of the hazard display device and a status indicator for visually displaying whether the bypass cable is in a live state Configured; The alarm device includes a second power switch provided at an upper portion of the lid for supplying driving power to the alarm device and an operation inhibition notifying part informing an alarm according to the opening of the lid of the connection part protective case when the bypass cable is in a live state It protects uninterruptible bypass cable connection part with built-in warning and erroneous operation prevention alarm system.

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