KR100970763B1 - Apparatus for generating singnal of sensing disconnection of fuse - Google Patents

Abstract

PURPOSE: A fuse disconnection signal generating device is provided, which can be installed without a separate additional hardware because the device can be easily established in a fuse holder. CONSTITUTION: A sensing body(10) is capable of being settled in a fuse holder by forming a cylindrical vessel. An opening(12) flexibly inserts the cylindrical vessel into the fuse holder. A wing unit(13) has elasticity while extending from both sides of the opening in the outside direction. A disconnection sensing module(14) is built inside the sensing body. The disconnection sensing module transmits the disconnection signal to the outside by sensing the slope degree of the fuse holder.

Description

[0001] The present invention relates to a fuse-

The present invention relates to a fuse disconnection signal generator for detecting a fuse disconnection and transmitting the signal to the outside.

In general, the cut-out switch (COS) is mainly installed on the primary side of the transformer to protect and open the transformer. The cut-out switch is a single-pole switch, and when the internal fuse blows, the fuse holder is opened by gravity.

Power Fuse (PF) is a short - circuit protection fuse for high - voltage and special high - voltage equipment. Fuse element and silicon are filled and sealed in a sealed insulation box.

In the case of the cut-out switch (COS) or power fuse (PF), the drop-out method in which the fuse holder drops to the lower end when the internal fuse link is broken due to a failure can be regarded as a highly reliable equipment. However, in the control room or the central control room, it is not possible to know at which point the fuse is broken, so that it takes a long time to find and repair the broken line.

Since the fuse type switches are single-phase operation type, when only one phase fails due to a fault, only the remaining two phases are supplied, which causes a failure of a device using a three-phase motor or three-phase power, There is a problem that the abnormal power source is spread to the line, causing continuous power failure.

In addition, when the fuse-type switch is dropped at the end of a distribution line, a place where human traffic is uncommon, or a person in a parked state, it takes a lot of time to find a high advantage, and the power outage is widened.

The total number of blackouts is decreasing every year due to the settlement of the DAS system and the improvement of the quality of the equipment. In addition, the power outages such as weather deterioration, external contact, and general fault are decreasing. However, apartments, intelligent buildings, and factories with semiconductor processes that require precision are experiencing exponential growth in power outage time even if there is a momentary power outage or a power outage for as short a time as possible.

Therefore, customized management measures to reduce the types of safety accidents are required. The present invention relates to a communication system capable of transmitting accident information occurring at a property limit of a high-pressure or high-pressure customer to a control room or a master control room so that the fault information can be linked to an existing distribution automation (DAS) system or a remote management (AMR) A fuse blowing signal generating device incorporating a function has been developed.

The present invention is directed to a fuse blower signal generator capable of easily mounting a fuse blower to a power control place when the fuse is disconnected and separated from the fuse holder, .

According to an embodiment of the present invention, there is provided an electronic device including: a sensing body having a cylindrical trough for seating on a fuse holder; An opening formed to elastically fit the cylindrical trough into the fuse holder; A wing portion extending outward from both sides of the opening portion and having elasticity; And a disconnection detection module built in the sensing body; And the disconnection detection module senses that the fuse holder is opened and tilted, and transmits the fuse blow signal to the outside.

Here, the fuse disconnection signal may be a unique recognition signal for each fuse disconnection signal generator.

The wing portion may include a fastening device at both ends of a wing extending to prevent the fuse holder from detaching from the sensing body after the fuse holder is inserted.

According to another aspect of the present invention, there is provided a fastening device for a fuse blowing signal generator, comprising: a hook portion formed at an end of a wing portion, the hook portion being bent outwardly; a hook portion hooked to the hook portion, And an annular cover rotatably formed by hinging one end of the wing portion with the other end of the wing portion. The annular cover may be fastened to the annular hook portion by rotating the annular cover.

Also, the disconnection detection module may include a sensing unit sensing a tilt of the fuse holder to generate a control signal; A power supply unit for supplying power to the disconnection detection module; A transmitter for transmitting a fuse blow signal to the outside; And a control unit for controlling the sensing unit and the power unit to operate the transmitting unit.

In addition, the battery of the power source unit may be inserted into the inner groove so as to be detachable and insertable from the outside, and a battery cover may be attached to the outer portion of the battery cover, and the disconnection detection module except the battery may be molded integrally with the sensing body.

 The apparatus for generating a fuse burnout signal according to another embodiment of the present invention includes a charging unit for the burnout detection module and a rechargeable secondary battery for the power supply unit and the power generated when the solar cell module is installed outside the detection module And charging the secondary battery by sending it to the charging unit.

Further, the fuse blow signal generating apparatus of the present invention can be mounted on a fuse holder of COS or PF.

Since the fuse blow signal generating device of the present invention can be easily mounted on a pre-installed fuse holder, the fuse blow signal generating device is easy to install without any additional device.

The fuse disconnection signal generator of the present invention can remotely recognize the disconnection of the fuse, so that an urgent response to an accident is easy.

According to the fuse blowing signal generating apparatus of the present invention, the blowing effect of a blown accident can be reduced because a break of a fuse can be immediately detected at a remote place.

According to the fuse disconnection signal generating apparatus of the present invention, since it can be charged by a solar cell or an induced current, it can be used for a long time without any maintenance work and is easy to manage.

1 illustrates a fuse blow signal generating apparatus according to an embodiment of the present invention.
FIG. 2 illustrates a fuse break signal generating apparatus equipped with a cicada ring fastening apparatus according to another embodiment of the present invention.
FIG. 3 illustrates a fuse blowing signal generating apparatus equipped with a butterfly fastening apparatus according to another embodiment of the present invention.
4 shows a state in which the fuse blower signal generating device is mounted on the COS switch into which the fuse holder 40 is inserted.
5 shows a state in which the fuse blow signal generator is mounted on the fuse holder 40 whose fuses are disconnected from the COS switch and are separated downward.
6 is a block diagram for explaining a technical configuration of the wire breaking detection module according to an embodiment of the present invention.
FIG. 7 is a diagram showing a charging induction coil 63 mounted inside the sensing body 10 according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the term "includes" Or "having" are intended to designate the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, unless the context clearly dictates otherwise. Elements, parts, or combinations thereof without departing from the spirit and scope of the invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In order to facilitate a thorough understanding of the present invention, the same reference numerals are used for the same means regardless of the number of the drawings.

FIG. 1 is a block diagram of a fuse blow signal generating apparatus according to an embodiment of the present invention. FIG. 4 shows a state in which a fuse blow signal generating apparatus is mounted on a COS switch into which a fuse holder 40 is inserted.

 1, a fuse break signal generating apparatus according to an embodiment of the present invention includes a sensing body 10, a cylindrical groove portion 11, an opening portion 12, a wing portion 13, .

Specifically, as shown in FIGS. 1 and 4, a cylindrical groove portion 11 is formed on the sensing body 10 so that the fuse holder 40 of FIG. 4 can be seated. That is, by inserting the fuse holder 40 into the cylindrical groove portion 11, the sensing body 10 is mounted on the fuse holder 40. [ An opening 12 is formed at one side of the cylindrical groove portion 11 so as to be elastically fit in the fuse holder 40 and wing portions 13 having elasticity are formed on both sides of the opening portion.

The inner diameter of the cylindrical groove portion 11 can be made the same as the outer diameter of the fuse holder 40 so that the fuse holder 40 can be fixed in a seated state. Alternatively, it may be made slightly smaller than the outer diameter of the fuse holder 40, and may be fixed in a state of being seated with the fuse holder 40 by frictional force.

The opening 12 and the wing portion 13 are made of an elastic material and the gap between the opening portion 12 and the wing portion 13 is formed to be smaller than the outer diameter of the fuse holder such that the fuse holder 40 is seated It can be prevented from being detached due to the natural force exerted from the outside such as the wind. The wing portion 13 and the opening portion 12 of the fuse blowing signal generating device are made of an elastic material so that when the wing portion 13 is slightly widened and pushed into the fuse holder, As shown in Fig. 4, the wings 13 and the openings 12, which are seated on the barrel 11 and slightly opened, are closed.

A disconnection detection module 14 is built in one side of the sensing body 10. The disconnection detection module 14 includes a sensing sensor such as a gravity switch 30 such as a mercury contact switch or a position sensing switch. When the fuse holder 40 is released from the COS switch, which is a device equipped with a fuse, the detection sensor is activated to transmit the disconnection signal to the outside.

1, the fuse holder is seated in the cylindrical groove portion 11 of the fuse disconnection signal generating device 10, and the fuse disconnection signal generating device shown in Fig. 4, due to the elasticity of the wing portion 13, and the fuse holder 40 and the fuse disconnection signal generator are not separated from each other.

However, in order to firmly mount the fuse holder 40 so that the fuse holder 40 does not separate from the sensing body, the fastening device can be attached to the end of the wing 13. A fastening device is provided at both side ends (13) of the extended wing portion, and after the fuse holder is inserted, the fastening device tightly fastens and is stably fixed.

The fastening device described above can be installed by utilizing bolts and nuts, a butterfly fastening device, a cicada ring fastening device, or the like.

FIG. 2 is a block diagram showing a fuse blowing line signal generating device equipped with a fastening device according to another embodiment of the present invention.

The fastening device shown in FIG. 2 has a hook portion 24 that is bent outward at one end of a wing portion 23 and has a hook portion 25 hooked to the hook portion 24 and capable of fastening an upper end thereof, And an annular cover 26 coupled to both ends of the lower portion of the wing portion 25 and hinged to the other end of the wing portion 23 to be rotatable.

The fuse holder 40 is seated on the cylindrical groove portion 11 of the sensing body 20 of the fuse disconnection signal generating device and the hook portion 25 of the fastening device is hooked on the hook portion 24, The detecting body 20 is firmly mounted without detaching it from the fuse holder 40 because the both side wing portions 23 are resiliently fastened by being pulled and rotated in the direction opposite to the hook portion 24. [

FIG. 3 illustrates a fuse blowing signal generating apparatus equipped with a butterfly fastening apparatus according to another embodiment of the present invention.

The fastening device forms both fastening holes of the wing portion 13 and a bolt 29 having a butterfly knob 27 can be inserted into the fastening hole and can be simply fastened with a butterfly nut 28.

4 is a view showing a state in which a fuse disconnection signal generating device is mounted on a COS switch into which a fuse holder 40 is inserted, and Fig. 5 is a cross-sectional view showing a state in which a fuse disconnection signal generating device is mounted on a COS switch, In which the signal generating device is mounted.

4 and 5 show a mercury sensor as a sensing device according to another embodiment of the present invention.

A reference numeral 41 is a supporting insulator 41 for insulating the COS switch from the supporting metal. A reference numeral 30 is a mercury switch 30 embedded in the sensing body 10, 20. FIG.

The mercury 31 as a conductive member is separated from the two contact terminals 32 and 33 while the fuse holder 40 is put in the COS switch and the mercury switch 30 is opened under the control of the disconnection detection module 14 The power supply is cut off, so that the fuse disconnection signal generator does not perform any operation.

In the state where the fuse holder 40 is normally inserted into the COS switch, the ejection 43 provided at the lower end of the fuse holder 40 is pulled by the tension of the fuse lead 42 to pull the spring interlocked with the ejection 43 .

When the fuse link in the fuse holder 40 of the COS switch is disconnected due to an accidental current or the like, the fuse lead 42 is released from the tension of the fuse holder, The fuse holder 40 is released from the COS switch.

When the fuse holder 40 is released from the COS switch, it falls downward due to the weight of the fuse holder 40 as shown in FIG.

At this time, the mercury of the mercury switch built in the sensing bodies 10 and 20 is brought into contact with the two contact terminals 32 and 33 as shown in FIG. 5, and power is supplied to the disconnection detecting module 14, .

FIG. 6 is a block diagram for explaining a technical configuration of the disconnection detection module 14 including the operation circuit units according to an embodiment of the present invention.

The disconnection detection module 14 includes a sensing unit 54, a power source unit 51, a transmission unit 53, and a control unit 52.

The sensing unit 54 senses that the fuse holder 40 is opened and tilted, and generates a sensing signal. The sensing unit 54 generates a switching signal, which is a sensing signal, by using a sensing sensor. Any one of a gravity switch, a mercury switch, and a position sensor may be used as the sensing sensor.

The power supply unit 51 supplies power to the disconnection detecting module 14. The power unit includes a battery that supplies power. A primary battery such as a mercury battery, an alkaline battery, or a rechargeable secondary battery may be used.

The power supply unit 51 is turned on / off by a simple operation from the outside of the sensing bodies 10 and 20 when the battery is replaced, or when a test or the like is not used, and is operated only when necessary And an external switch 15.

The transmission unit 53 receives the power supply and control signal by the control unit 52 and transmits the fuse disconnection signal to the outside.

When the fuse disconnection signal is transmitted as a unique recognition signal for each fuse disconnection signal generator, the central command room receives the fuse disconnection signal and immediately recognizes the position where the fuse is disconnected.

A method of transmitting a fuse blow signal may be a method of sending a fuse blow signal to a KEPRI repeater port installed at a predetermined interval by using a network such as CDMA to a control room or a main command room, There is a way to connect to the control room, which is a remote control place, or to the main command room.

The transmitting unit 53 may include a transmitting antenna. The transmission antenna may be built in or the antenna may be installed inside the handle using the handle of the external switch 15 provided outside the sensing bodies 10 and 20.

The control unit 52 receives the detection signal from the sensing unit 54 and generates a control signal to enable the transmission unit 53 to send the fuse disconnection signal.

In addition, it is possible to control so that the fuse disconnection signal can be transmitted by receiving the detection signal from the sensing unit 54 and supplying power to the transmission unit 53. [

The power consumption of the entire circuit or the transmission unit 53 is cut off by the control unit 52 in normal operation or the power supply of the transmission unit 53 is operated only when the operation is performed for a fault current or other reasons The fuse disconnection signal is transmitted to an external system such as a repeater or a central command room through a transmission unit.

By turning off the power supply normally, the power supply is cut off during normal operation to prevent malfunction due to influence of induction electric field such as high voltage or extra high voltage, or to deteriorate the performance of the component.

In addition, the control unit 52 cuts off the power supply to the entire circuit or the transmission unit 53 after a lapse of a predetermined time after the fuse disconnection signal is transmitted, thereby suppressing current consumption.

The wire disconnection detection module 14 is molded inside the sensing bodies 10 and 20 except for the external switch 15 including the antenna to prevent damage due to the external environment.

Alternatively, the disconnection detection module 14 may be molded inside the sensing bodies 10 and 20 except for the external switch 15 including the antenna and the battery. At this time, the battery has a space for inserting the battery, that is, an inner groove and a connection terminal, is formed inside the sensing bodies 10 and 20 for facilitating the detachment, insertion and replacement from the outside, and after inserting the battery, It can be mounted and sealed by assembling or the like.

The detection unit 14 may be formed as a molded body that is molded independently and a detection space may be formed inside the detection bodies 10 and 20 for inserting, inserting, and replacing the disconnection detection module 14 from the outside as a whole. Or the inner groove may be formed and the wire breaking detection module 14 may be inserted into the insertion space or the inner groove and then the waterproof wire breaking detection module cover may be mounted to the outside by screw assembly or the like.

In another embodiment of the present invention, the burnout detection module 14 may further include a charging unit 61, and a rechargeable secondary battery may be used as the battery.

Normally, mercury batteries can be used for 2 ~ 3 years if they are kept in a natural discharge condition. However, if batteries are replaced every 2 ~ 3 years, it will require a lot of manpower and cost.

In an embodiment of the present invention, the solar cell module 62 may be attached to one side of the sensing body 10 as shown in FIGS. 1 and 2, and used as a charging power source.

At this time, the power generated by attaching the solar cell module 62 is sent to the charging unit 61, and the charging unit charges the secondary battery by forming the received power to a constant charging voltage by the power control system pcs.

By adding the charging system in this way, the fuse disconnection signal generating device for a longer time can be used without any maintenance work.

The disconnection detection signal of the disconnection detection module 14 only transmits a recognition code signal given to each disconnection detection module 14 to a simple pulse signal. The disconnection detection signal is transmitted only when the disconnection detection module 14 fails, The solar cell module 62 outside the burnout detection module 14 may be sufficient to charge a power source that is spontaneously discharged even if the solar cell module 62 is installed with a very small capacity.

In one embodiment, a single 10 cm 2 solar cell module was used for one transmission and a one-month charge test was performed for a rechargeable secondary battery, but the discharge voltage did not drop at all.

7 shows another embodiment of the charging system in which the induction coil 63 is mounted inside the sensing body 10 with a charging voltage.

Since the sensing body 10 normally surrounds the fuse holder 40 as shown in FIG. 4, the induction coil forming the U-shaped closed circuit is detected in the cylindrical groove portion 11, which is a portion surrounding the fuse holder 40 An induction current flows through the induction coil 63 located inside the fuse holder 40. The generated power from the induction coil 63 is supplied to the secondary battery through the charging unit 61 and the secondary battery through the constant voltage process.

That is, the induction coil 63 described above can be used as a charging induction coil for the secondary battery. In the charging unit 61 according to the embodiment, the secondary battery is charged with a constant voltage including the transformer rectifying unit and the PCS.

When a fault current such as an overcurrent or a ground fault current flows in the fuse link, the corresponding induction current flows through the induction coil 63, so that the fault current can be detected according to the induced current state. If the fault signal type including the unique identification number of the place is transmitted through the control unit 52 and the transmission unit 53, the remote control station such as the central control room receives the detection signal of the detected fault current and outputs the fuse disconnection signal Not only the fault current of the line can be detected.

As described above, when both the fault current detection and the fuse disconnection signal are detected, the fault detection current can be used for charging the secondary battery of the fault detection and disconnection detection module.

When the fuse disconnection signal is detected, the solar cell module 62 is used for charging the secondary battery, and the induction coil 63 described above can be used only for detecting the fault current.

In the above-described embodiment, the fuse blowing signal generator is mounted on the fuse holder of the COS. However, if the fuse blows, the PF is also the same dropout structure as the COS blown down to the fuse holder. Can be applied to PF according to the same principle to send a disconnection detection signal.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It can be understood that

≪ Brief Description of Drawings &
10: sensing body 11: cylindrical groove barrel
12: opening 13, 23:
14: Disconnection detection module 15: External switch
24: hook portion 25: hook portion
26: collar cover 27: butterfly bolt handle
28: butterfly nut 30: mercury switch
32, 33: Contact terminal 40: Fuse holder
42: Fuse lead wire 43: Eject
51: power supply unit 52:
53: Transmission unit 54:
61: live part 62: solar cell module
63: induction coil

Claims (15)

A sensing body formed with a cylindrical trough so as to be seated in the fuse holder;
An opening formed to resiliently fit the cylindrical trough into the fuse holder;
A wing portion extending outward from both sides of the opening portion and having elasticity;
And a disconnection detection module built in the sensing body;
Wherein the disconnection detection module senses that the fuse holder is opened and tilted from the device in which the fuse is mounted, and transmits the fuse blow signal to the outside.
The method according to claim 1,
Wherein the fuse disconnection signal is a unique recognition signal for each fuse disconnection signal generator.
The method according to claim 1,
Wherein the wing portion includes a fastening device for fastening both ends of the extended wing portion after inserting the fuse holder so that the fuse blowing signal generating device seated on the fuse holder does not come off. Disconnected signal generator.
The method of claim 3,
The fastening device includes a hook portion formed to be eccentrically curved outward at one end of a wing portion, a ring portion to which the upper end can be hooked by hooking the hook portion, and a lower end of the ring portion is coupled, Wherein the hook is engaged by rotating the hook cover by hooking the hook on the looped hook portion.
The method of claim 3,
Wherein the fastening device includes bolts inserted into fastening holes formed at both ends of the wing portion and fastened with a butterfly nut.
The method according to claim 1,
Wherein the disconnection detection module comprises: a sensing unit for sensing a tilt of the fuse holder to generate a control signal; A power supply unit for supplying power to the disconnection detection module; A transmitting unit for transmitting the fuse disconnection signal to the outside; And a control unit for controlling the sensing unit and the power supply unit to operate the transmission unit. The method according to claim 6,
Wherein the power supply unit includes an external switch for controlling power from the outside of the sensing body.
The method of claim 7, wherein
Wherein the transmitting unit includes an antenna, and the antenna is mounted on a handle of the external switch.
The method according to claim 6,
A battery cover for inserting a battery and a connection terminal formed inside the sensing body so that the battery of the power unit can be mounted from the outside of the sensing body and a battery cover for sealing the inside groove on the outside of the sensing body And the single-wire detection module except for the battery is integrally molded inside the sensing body.
The method according to claim 6,
The power supply unit supplies power to the rechargeable secondary battery. The solar battery module is mounted on the outer surface of the sensing body, and power generated in the solar battery module is sent to the charging unit And the secondary battery is charged.
The method according to claim 6,
The power supply unit supplies power to the rechargeable secondary battery. The induction coil for charging is mounted in the sensing body surrounding the fuse holder, To the charging unit to charge the secondary battery.
The method according to claim 1,
Wherein the disconnection detecting module is integrally molded inside the sensing body.
The method according to claim 1,
The single wire detection module may be inserted into an inner groove for inserting a wire detection module formed on the sensing body so that the wire can be inserted and replaced from one side of the sensing body, Wherein the fuse disconnection signal generating device is mounted on the fuse disconnection signal generating device.
14. The method according to any one of claims 1 to 13,
Wherein the sensing body is mounted on a fuse holder of COS or PF.
14. The method according to any one of claims 1 to 13,
The fuse disconnection signal may be transmitted to a remote control site using a wireless communication network using CDMA communication or may be transmitted to a KEPCO repeater port installed every predetermined interval using RF communication, To the fuse disconnection signal generator.

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