Arc detection and transmission device for functional power facility

Abstract

The present invention relates to an arc detection and transmission device for a power facility, comprising: a battery; a wireless communication unit which operates by receiving power from the battery; a bimetal which operates by detecting resistance heat of a power cable; and a light-emitting unit which is turned on when the bimetal operates and arc information is received via the wireless communication unit, wherein the bimetal remains OFF to block the connection between the battery and the wireless communication unit when the resistance heat is detected to be at a reference temperature or lower, and is turned ON to connect the battery and the wireless communication unit when the resistance heat is detected to be at or above the reference temperature.

Description

Arc detection transmission device for functional power equipment

[0001] The present invention relates to an arc detection transmission device for power equipment, and more specifically, to a functional arc detection transmission device for power equipment that detects signs of fire in advance to induce inspection and is easy to install.

[0002] In the current era, there is a demand for electrical safety and electrical disaster prevention systems suitable for user facility environments in U-city environments utilizing newly implemented ubiquitous technology, advanced information and communication technology, and spatial utilization technology.

[0003] While conventional switchboards and low-voltage distribution panels were manual, there has recently been a trend toward evolving systems that incorporate electronic controllers to measure power quality and quantity and transmit the data digitally. However, existing distribution panels lacked critical functions for measuring and transmitting electrical safety hazards, making them insufficient for direct application to the U-city system, which aims to improve convenience and safety in daily life through the integration of IT technology.

[0004] Typically, the main causes of electrical fires among electrical disasters are short circuits, overcurrents, arcs, and leakage currents. In addition, the surrounding environment of the user's facilities (waterlogging, gas, temperature, poor connection of home outlets) is also a major cause.

[0005] In particular, unannounced power outages and electrical accidents frequently occur in existing switchgear due to internal component failures and insulation degradation. This is because existing switchgear completely lacked measures to detect arcs and partial discharges, which are necessary to prevent power outages and accidents in advance.

[0006] In addition, household distribution panels only cut off the power supply by operating internal circuit breakers in the event of a short circuit or overload, but there is almost no equipment to provide information regarding the safety status of the distribution panel itself, gas information caused by overload or overheating in the circuit breaker connections or wiring inside the distribution panel, connection failures installed in all buildings such as houses, apartments, commercial buildings, and office buildings, and power consumption, so the actual function to prevent fire accidents in advance is lacking.

[0007]

[0008] In order to solve the above-mentioned problem, the applicant has presented Registered Patent No. 10-2132354 (arc detection transmission device for power equipment, hereinafter referred to as prior art).

[0009] The present invention further improves upon the aforementioned prior art and aims to provide an arc detection transmission device for functional power equipment that prevents fires by attaching to fire-vulnerable parts to detect signs of fire in advance and thereby inducing inspection, while also being easy to install in a clip form and manufactured in an ultra-compact size to reduce installation costs and enable low-power operation.

[0010]

[0011] Furthermore, the present invention improves upon the aforementioned prior art and aims to provide an arc detection and transmission device for a functional power facility that performs the function of attaching a thermally conductive buffer to the contact surface of a bimetal to increase contact density and elasticity with a power cable and rapidly transfer heat generated from the power cable to the bimetal.

[0012]

[0013] Furthermore, the present invention improves upon the aforementioned prior art and aims to provide a functional arc detection transmission device for power equipment that is equipped with a current information providing unit in the arc detection transmission device described above, provides current information to a wireless communication unit, and accurately determines the temperature of the power cable at the time of arc occurrence, thereby enabling accurate detection of signs of fire in the power equipment.

[0014] In order to solve the above-mentioned objectives and requirements, the present invention,

[0015] An arc detection transmission device that is connected to a power cable of a power facility and detects resistance heat around the power cable generated by arc generation and transmits it externally via wireless communication,

[0016] A battery that supplies power, and

[0017] A wireless communication unit that operates by receiving power from the above battery and transmits resistance heat information of the power cable resulting from the arc generation to the outside via wireless communication, and

[0018] A bimetal that detects resistance heat of the power cable due to arc generation in the power cable and mechanically turns on or off to selectively connect the battery and the wireless communication unit, and

[0019] A light-emitting unit that lights up and emits light when the above bimetal operates and sends arc information through the above wireless communication unit, and

[0020] A first storage case for housing the light-emitting part, wireless communication part, and battery, and

[0021] A second storage case connected to the first storage case and storing the bimetal, and

[0022] A fastening part configured on the side of the second storage case and fastened to the power cable, and

[0023] A track switch configured in the internal storage space of the first storage case, which is driven by external operation to perform periodic communication checks between a transmitter and a receiver, and

[0024] It is configured to include a track switch operating hole formed on the surface of the first storage case for external operation of the above track switch, and

[0025] The above bimetal provides an arc detection transmission device for a functional power facility that detects resistance heat of the power cable, maintains an OFF state when the temperature is below a reference temperature to disconnect the battery and the wireless communication unit, and turns ON when the temperature is above the reference temperature to connect the battery and the wireless communication unit.

[0026]

[0027] In addition, the present invention provides an arc detection transmission device for a functional power facility, characterized by having a current information providing unit on the side of the bimetal of the arc detection unit that provides current information according to temperature, and performing the function of providing current information (IF) to a wireless communication unit.

[0028]

[0029] In addition, the above-mentioned wireless communication unit of the present invention includes an arc detection transmitter and an arc detection receiver, and

[0030] The above-described arc detection receiver provides an arc detection transmission device for a functional power facility, characterized by having a temperature sensor, a humidity sensor, and an illuminance sensor built inside.

[0031] In addition, the present invention provides an arc detection transmission device for a functional power facility, characterized in that the bimetal has a cushioning rubber attached to one surface.

[0032] In addition, the present invention provides an arc detection transmission device for a functional power facility characterized by having a unique ID assigned to the power facility.

[0033] In addition, the present invention provides an arc detection transmission device for a functional power facility, characterized in that the fastening portion is fastened to the power cable in the form of a clip.

[0034] In addition, the present invention provides an arc detection transmission device for a functional power facility, characterized in that the fastening portion is fastened to the power cable in the form of a clamp.

[0035] In addition, the bimetal of the present invention provides an arc detection transmission device for a functional power facility characterized by detecting resistance heat resulting from arc generation within approximately 5 cm from the generation part when an arc occurs in the power cable.

[0036] In addition, the present invention provides an arc detection transmission device for a functional power facility, characterized in that the first storage case of the present invention has an antenna attached thereto for transmission of the wireless communication unit.

[0037]

[0038] In addition, the present invention provides an arc detection transmission device for a functional power facility, characterized in that the power facility is one of a switchboard, a solar inverter, a solar junction box, a distribution board, a motor control board, an ESS, or a household electric distribution box.

[0039]

[0040] The arc detection transmission device of a functional power facility according to the present invention comprises a bimetal that operates by detecting resistance heat of a power cable generated by an arc in the power cable. By supplying power to a wireless communication unit via a battery when an arc occurs and transmitting the detection signal externally, the battery is used only when an arc occurs, thereby providing the effect of reducing battery consumption.

[0041]

[0042] In addition, the arc detection transmission device of the functional power facility according to the present invention enables low-power operation and minimizes interference with other surrounding points by utilizing weak radio waves to communicate with each other among a plurality of fire sign detection systems disposed within the power facility.

[0043]

[0044] In addition, the arc detection transmission device of the functional power equipment according to the present invention is attached to a fire-vulnerable part to detect signs of fire in advance, thereby enabling the prevention of fire by guiding inspections.

[0045]

[0046] In addition, the arc detection transmission device of the functional power equipment according to the present invention can be installed in the form of a clip on the power cable in a fire-vulnerable part, making installation easy without turning off the power or cutting the power cable, and can reduce installation costs by being manufactured in an ultra-compact size.

[0047]

[0048] In addition, since the arc detection transmission device of the functional power facility according to the present invention is easy to install on power cables, it can be installed in existing or newly constructed power facilities to more easily detect fire in advance and induce inspection.

[0049]

[0050] In addition, the arc detection transmission device of the functional power equipment according to the present invention has the effect of attaching a thermally conductive buffer to the contact surface of the bimetal to increase the contact density and elasticity with the power cable and rapidly transfer heat generated from the power cable to the bimetal.

[0051]

[0052] In addition, the arc detection transmission device of a functional power facility according to the present invention is equipped with a current information providing unit to provide current information to a wireless communication unit, thereby providing the effect of accurately identifying signs of fire in the power facility.

[0053] FIG. 1 is a conceptual diagram for schematically explaining an arc detection transmission device of a functional power facility according to the present invention.

[0054] FIG. 2 is a schematic perspective view of an arc detection transmission device of a functional power facility according to the present invention.

[0055] FIG. 3a is a perspective view schematically showing the internal configuration of an arc detection transmission device of a functional power facility according to the present invention.

[0056] FIG. 3b is an additional configuration diagram of the thermally conductive buffering section and current information providing section of the arc detection transmission device of a functional power facility according to the present invention.

[0057] FIG. 3c is a detailed configuration diagram of the current information providing unit of the arc detection transmission device of a functional power facility according to the present invention.

[0058] FIG. 4 is a diagram showing the connection configuration between the arc detection transmission device of a functional power facility and a management server according to the present invention.

[0059]

[0060] FIG. 1 is a conceptual diagram for schematically explaining an arc detection transmission device for power equipment according to the present invention.

[0061]

[0062] As shown in FIG. 1, the arc detection transmission device for a power facility according to the present invention includes an arc detection transmission device (200) that is connected to a power cable (100) of a power facility (1000) and detects resistance heat around the power cable (100) generated according to an arc occurrence and transmits it to the outside via wireless communication.

[0063] At this time, the arc detection transmission device (200) is attached in the form of a clip to a part of the power cable (100) that is vulnerable to fire, and a plurality of arc detection transmission devices (200) are installed inside the power equipment to detect arcs.

[0064]

[0065] FIG. 2 is a schematic perspective view of the arc detection transmission device of FIG. 1, and FIG. 3a is a schematic perspective view of the internal configuration of the arc detection transmission device of FIG. 2.

[0066]

[0067] As illustrated in FIGS. 2 and 3a, the arc detection transmission device (200) comprises a battery (210) that supplies power, a wireless communication unit (220) that operates by receiving power from the battery (210) and transmits the detected arc information to the outside via wireless communication, a bimetal (230) that detects resistance heat of the power cable (100) due to arc generation in the power cable (100) and is mechanically turned on or off to selectively connect the battery (210) and the wireless communication unit (220), a light-emitting unit (240) that lights up and emits light when the bimetal operates and sends arc information via the wireless communication unit, a first storage case (250) that houses the light-emitting unit (240), the wireless communication unit (220), and the battery (210), a second storage case (260) that is connected to the first storage case (250) and houses the bimetal (230), and the second storage It is configured to include a fastening part (270) configured on the side of the case (260) and fastened to the power cable (100) in the form of a clip, a track switch (280) configured in the internal storage space of the first storage case (250) and driven by external operation to perform periodic communication checks between the transmitter and the receiver, and a track switch operating hole (290) configured on the surface of the first storage case (250) for external operation of the track switch (280).

[0068]

[0069] Here, the connecting part (270) is in the form of a clamp and is opened by artificial operation from one side, and when the operation is stopped, it is closed so that it can be freely attached to and detached from a desired part of the power cable (100).

[0070]

[0071] Therefore, the above-mentioned connecting part (270) is manufactured in the form of a clip so that it can be easily installed at the desired location of the power cable (100) without turning off the power or cutting the power cable (100).

[0072]

[0073] In addition, the above-mentioned connecting part (270) can be easily attached to and detached from the power cable (100) using an adhesive that is detachable from the power cable (100), and provides ease of attachment such that, if necessary, the bimetal (230) can be attached in a structure that allows for good heat transfer from the power cable (100).

[0074]

[0075] The above-mentioned detachable adhesive is a polymer resin type adhesive, and it is very effective to use an adhesive composed of 10 to 50 parts by weight of methacrylic anhydride, 10 to 20 parts by weight of ethyl acrylic acid, 0.1 to 2 parts by weight of dibutyltin dilaurate, 1 to 10 parts by weight of isopropyl isostearate, and 1 to 5 parts by weight of tetramethylammonium, mixed with 100 parts by weight of polyolefin resin.

[0076]

[0077] The above-mentioned polymer resin adhesive contains an adhesion-enhancing additive that performs the function of significantly enhancing adhesive strength and adhesion power.

[0078]

[0079] It is preferable to mix 0.5 to 2 parts by weight of the above-mentioned adhesion reinforcing additive based on 100 parts by weight of the polyolefin resin.

[0080]

[0081] The above-mentioned adhesion-strengthening additive refers to a composition formed by mixing 5 to 20 parts by weight of dipropylene glycol, 1 to 10 parts by weight of isoprene, and 0.5 to 50 parts by weight of methylene diisocyanate with 100 parts by weight of polyether polyol modified glycerin.

[0082]

[0083] The present invention provides a polymer resin-type adhesive containing functional additives that prevent the weakening of adhesive strength due to continuous thermal stress and ultraviolet rays, thereby significantly increasing the durability of the adhesive strength.

[0084]

[0085] It is preferable to mix 0.1 to 2 parts by weight of the above-mentioned functional additive based on 100 parts by weight of the polyolefin resin.

[0086]

[0087] The above-mentioned functional additive comprises 10 to 30 parts by weight of chloropolypropylene, 10 to 30 parts by weight of acrylate, 10 to 30 parts by weight of polyester polyol, 10 to 30 parts by weight of ethyl acrylic acid, 5 to 20 parts by weight of maleic anhydride, and 1 to 10 parts by weight of ethanediol, in addition to 100 parts by weight of ethylene glycol.

[0088]

[0089] The materials of the first storage case (250) and the second storage case (260) of the arc detection unit (200) described above can be varied, and preferably, they are made of a polymer resin that is resistant to heat, has good durability so that no damage occurs, and is resistant to deterioration due to long-term use.

[0090]

[0091] The present invention is characterized in that the first storage case (250) and the second storage case (260) of the arc detection unit (200) described above are made of a polymer resin that withstands temperature well, has high strength, and withstands weathering caused by temperature changes inside the power equipment.

[0092]

[0093] The above-mentioned polymer resin may be a polymer resin using polyvinyl chloride, polyethylene, polypropylene, polystyrene, or polyester alone or a mixture of two or more types.

[0094]

[0095] It is preferable to use the above-mentioned polymer resin composed of 10 to 100 parts by weight of polyester in 100 parts by weight of polyethylene.

[0096]

[0097] As the material of the above-mentioned case, the polymer resin may include functional additives to significantly enhance durability and cold resistance.

[0098]

[0099] In the present invention, it is preferable to mix 1 to 10 parts by weight of a functional additive with 100 parts by weight of the above-mentioned polymer resin to significantly improve durability and cold resistance.

[0100]

[0101] The above-mentioned functional additive is effective when composed by mixing 10 to 20 parts by weight of silicon oxide, 1 to 5 parts by weight of aminoethyl silane, 1 to 3 parts by weight of aluminum hydroxide, and 0.5 to 1 part by weight of zinc oxide with 100 parts by weight of calcium carbonate.

[0102]

[0103] In this invention, a strength reinforcing agent is added to the above-mentioned polymer resin to significantly increase the strength of the case.

[0104]

[0105] In the present invention, it is preferable that 0.1 to 5 parts by weight of a strength reinforcing agent be mixed with 100 parts by weight of a polymer resin.

[0106]

[0107] The above-mentioned strength reinforcing agent refers to a composition formed by mixing 50 to 200 parts by weight of methyl methacrylate, 5 to 20 parts by weight of methyl acrylic acid, and 10 to 30 parts by weight of dimethylene glycol with 100 parts by weight of acrylonitrile.

[0108]

[0109] The present invention includes a heat-strengthening composition in the above-described polymer resin to perform the function of preventing breakage and damage to the above-described case due to high temperature and heat.

[0110]

[0111] It is very effective to mix 0.5 to 2 parts by weight of the above-mentioned heat-strengthening composition based on 100 parts by weight of polymer resin.

[0112]

[0113] The above-mentioned heat-strengthening composition refers to a composition formed by mixing 10 to 30 parts by weight of silicon oxide, 5 to 20 parts by weight of aluminum oxide (Al2O3), 1 to 10 parts by weight of alginic acid, 5 to 30 parts by weight of carboxymethyl cellulose, and 10 to 60 parts by weight of ammonium phosphate with 100 parts by weight of polylactic acid (PLA).

[0114]

[0115] The present invention may include a natural composition in the above-mentioned polymer resin, thereby enhancing the eco-friendliness of the polymer resin and significantly increasing the acid and alkali resistance of the case.

[0116]

[0117] It is preferable that the above-mentioned natural composition contains 0.01 to 0.5 parts by weight based on 100 parts by weight of polymer resin.

[0118]

[0119] The above-mentioned natural composition refers to a composition extracted by mixing 10 to 50 parts by weight of longan fruit, 10 to 30 parts by weight of *Jeolgukdae*, 80 to 120 parts by weight of *Yamyak*, 10 to 30 parts by weight of *Gallugen* root, and 50 to 80 parts by weight of *Sokdan* with 100 parts by weight of *Cypripedium macranthum*.

[0120]

[0121] The present invention provides a high effect in preventing the problem of the polymer resin, which is the material of the case, from oxidizing and weakening by adding a functional reinforcing additive to the aforementioned polymer resin.

[0122]

[0123] It is preferable to mix 0.001 to 0.005 parts by weight of the above-mentioned functional enhancing additive based on 100 parts by weight of the polymer resin.

[0124]

[0125] The above-mentioned functional enhancing additive refers to a composition extracted by mixing 80 to 120 parts by weight of Fritillaria, 10 to 30 parts by weight of fermented rice, and 80 to 120 parts by weight of Panax notoginseng with 100 parts by weight of Cuscuta japonica.

[0126]

[0127] The above-mentioned natural composition and functional enhancement additive can be extracted by adding 1,000 parts by weight of 75-85% [mass%] ethanol to 100 parts by weight of the above-mentioned mixed raw material, refluxing for 2-4 hours, and concentrating the filtrate under reduced pressure using a rotary evaporator.

[0128] Such an extract can be extracted in the form of 5 to 25 parts by weight based on 100 parts by weight of the mixed raw materials, and it is desirable to add this extract in the form of powder.

[0129]

[0130] Meanwhile, the first and second storage cases (250, 260) are joined vertically, and the power cable (100) passes through the connection part (270), so that the power cable (100) does not protrude to the side of the first and second storage cases (250, 260).

[0131]

[0132] Here, the power equipment, such as low-voltage and high-voltage distribution boards or switchboards, motor control boards, solar inverters (power converters), solar junction boxes, ESS, etc., is configured such that a control panel is built inside a main body on a metal enclosure, in which various electrical control means, power cables connecting them, and switches and measuring instruments for controlling said control means are formed. Meanwhile, the said switchboard includes a household electrical distribution box.

[0133] The above bimetal (230) is turned ON when the temperature of the power cable (100) reaches a reference temperature due to arc generation, and supplies power from the battery (210) to the wireless communication unit (220) to wirelessly transmit a detection signal of arc generation through the wireless communication unit (220).

[0134] The above bimetal (230) maintains an OFF state when the temperature of the power cable (100) is below a reference temperature, thereby blocking the supply of power from the battery (210) to the wireless communication unit (220), and turns ON when the temperature is above the reference temperature, thereby supplying power from the battery (210) to the wireless communication unit (220).

[0135]

[0136] In the prior art, the arc detection unit (200) performs the function of detecting when an arc occurs in the power cable (100) and transmitting a detection signal wirelessly, thereby determining whether a fire has occurred. The present invention further improves this by accurately measuring the temperature of the power cable (100) when an arc occurs, thereby performing the function of providing additional data for determining whether a fire has occurred inside the power facility.

[0137]

[0138] As shown in FIG. 3b, the present invention further improves upon the aforementioned prior art by providing a current information providing unit (232) that provides current information to an arc detection unit (200), and when the battery is activated by the bimetal (230), the current information providing unit (232) is activated to provide current information (IF) to the wireless communication unit (220).

[0139]

[0140] As shown in FIG. 3c, the current information providing unit (232) is connected to the battery (210) and has a resistance unit (232-1) inside. When the battery voltage (V0) is constant, the resistance value (R) increases proportionally when the temperature (T) rises in the resistance unit, and the current (I) changes accordingly. A current measurement sensor is provided in the resistance unit according to the temperature change of the power cable (100), and the accurate temperature (T) of the power cable (100) can be measured through the measured current information (IF).

[0141]

[0142] As shown in FIG. 4, the temperature information detected by the arc detection unit (200) is transmitted to the management server (700).

[0143]

[0144] Accordingly, the above-mentioned current information (IF) is provided to an arc detection receiver through a wireless communication unit (220), the arc detection receiver transmits it to a management server (700), and the fire prediction judgment unit (800) of the management server (700) determines whether a fire has occurred.

[0145]

[0146] The management server (700) refers to a device or means for managing power facilities that utilize a desktop, laptop, mobile phone, smartphone, tablet PC, iPad, etc., equipped with a conventional information processing device, memory, information input / output device, application program, etc.

[0147]

[0148] The fire detection judgment unit (810) of the fire prediction judgment unit (800) of the present invention determines the temperature of the power cable (100) by passing the current information (IF) of the resistance unit according to the temperature (T) of the power cable (100) through a calibration line, or by using the current information (IF) of the current information providing unit (232) transmitted from the arc detection receiver, where the calibration formula (1) below is pre-set.

[0149]

[0150] That is, the temperature (T) of the power cable (100) = T0+[(V0 / I-R0) / α] ----calibration formula (1)

[0151] Here, T0 ; reference temperature (when no arc occurs),

[0152] V0: Battery voltage

[0153] I ; Current Information (IF) Current Value

[0154] R0: Reference resistance value of the resistor

[0155] α: Resistance constant depending on temperature (i.e., derived from empirical or empirical formulas as R=R0 + α(T-T0))

[0156]

[0157] It performs the function of making a strong judgment that a fire has occurred in the power equipment when the temperature change (△T) exceeds a set range during a reference time (e.g., between 10 and 20 minutes) through the temperature information of the power cable (100) as described above.

[0158]

[0159] Meanwhile, the bimetal (230) of the prior art has a cushioning rubber attached to one surface. The cushioning rubber is formed in a molding structure to prevent damage to the bimetal (230) and to increase the contact density.

[0160]

[0161] The present invention further improves upon the prior art described above by providing a thermally conductive buffer (231) on the contact surface of the bimetal to increase the contact density and elasticity with the bimetal and to further increase the heat transfer efficiency generated in the power cable (100), thereby performing the function of rapidly transferring heat generated in the power cable (100) to the bimetal (230).

[0162]

[0163] As shown in FIG. 3b, the thermally conductive buffer (231) is characterized by being made of a thermally conductive material in which conductive particles are added to a polymer material, thereby increasing the contact density and elasticity with the power cable (100) and performing the function of significantly increasing the thermal efficiency.

[0164]

[0165] The above-mentioned thermally conductive material is preferably composed of 5 to 20 parts by weight of a conductive material mixed with 100 parts by weight of a polymer material composed of a mixture of polyamide, silicone, diethylene glycol, ammonium sulfate, magnesium sulfate, and calcium stearate.

[0166]

[0167] Preferably, the above-mentioned polymer material is composed by mixing 10 to 50 parts by weight of silicon, 5 to 20 parts by weight of diethylene glycol, 5 to 10 parts by weight of ammonium sulfate, 1 to 5 parts by weight of magnesium sulfate, and 1 to 5 parts by weight of calcium stearate with 100 parts by weight of polyamide.

[0168]

[0169] The polymer material with such a composition has high contact density and elasticity with the power cable (100), and also exhibits characteristics of significantly higher heat transfer efficiency compared to other rubber materials.

[0170]

[0171] The above-mentioned conductive material is preferably composed by mixing 10 to 20 parts by weight of aluminum nitride (AlN) and 10 to 20 parts by weight of boron nitride (BN) with 100 parts by weight of aluminum oxide (Al2O3).

[0172] Such a conductive material performs the function of rapidly transferring heat generated in the power cable (100) to the bimetal (230).

[0173]

[0174] The present invention may mix functional additives into the above-mentioned polymer material to prevent oxidation by heat and enhance durability.

[0175]

[0176] The above-mentioned functional additive can be composed by mixing 0.5 to 2 parts by weight based on 100 parts by weight of polyamide.

[0177]

[0178] The above-mentioned functional additive refers to a composition formed by mixing 1 to 10 parts by weight of alginate, 5 to 30 parts by weight of carboxymethyl cellulose, 1 to 10 parts by weight of tin, 5 to 10 parts by weight of acetic acid, and 2 to 5 parts by weight of graphite with 100 parts by weight of phosphoric acid.

[0179]

[0180] In addition, an antenna (not shown) is attached to the first storage case (250) for transmission of the wireless communication unit (220).

[0181] The above-mentioned light-emitting unit (240) is composed of an LED and lights up when an arc occurs during an inspection of power equipment by an administrator or customer, making it easier to recognize the occurrence of an arc from the outside.

[0182]

[0183] The above arc detection transmission device (200) is installed in multiple units in a single distribution panel, and as multiple distribution panels are installed depending on the building, each distribution panel is assigned a unique ID (not shown). Therefore, the exact location where the arc occurred can be identified according to the ID, allowing for faster repair of the fault or extinguishing of the fire.

[0184] The arc detection transmission device (200) is coupled to the power cable (100) in the form of a clamp, that is, the arc detection transmission device (200) is coupled to the connection part of the power cable (100) and configured to detect and react to the temperature resulting from the occurrence of an arc.

[0185] Each arc detection transmission device (200) within the above power facility communicates with each other using weak radio waves, and the arc detection transmission device (200) detects the temperature resulting from the arc generation within approximately 5 cm from the generation point when an arc occurs in the power cable (100) and responds.

[0186] The above battery (210) enables low power consumption through the use of weak radio waves, and thus the size can be reduced by using a coin battery.

[0187]

[0188] In the embodiment of the present invention, the above wireless communication unit (220) uses private network communication in the UHF band. Meanwhile, the above wireless communication unit (220) may use various types of wireless networks including private network communication in the UHF band, cellular networks (e.g., GSM (Global System for Mobile Communications), EDGE (Enhanced Data Rates for GSM Evolution), GPRS (General Packet Radio Service), CDMA (Code Division Multiple Access), Time Division-CDMA (TD-CDMA), UMTS (Universal Mobile Telecommunications System), LTE (Long Term Evolution), or other cellular networks), local area networks (LAN), and various wired networks such as RS232, RS485, and D-PLC.

[0189] For example, if the wireless communication unit (220) is a short-range communication network, the short-range communication network may be any one of Wireless LAN, Wi-Fi, Bluetooth, Zigbee, WFD (Wi-Fi Direct), UWB (ultra wideband), infrared communication (IrDA, infrared Data Association), BLE (Bluetooth Low Energy), and NFC (Near Field Communication).

[0190] As another example, if network data access element(s) are part of a GSM network, the network data access element(s) may include one or more of a BTS (base transceiver station), a BSC (Base Station Controller), a MSC (Mobile Switching Center), a SGSN (Serving GPRS Support Node), etc.

[0191] As another example, if the network data access element(s) are part of a LAN, the network data access element may include one or more network switches, routers, hubs, modems, etc.

[0192]

[0193] The above wireless communication unit (220) may comprise N arc detection transmitters that detect resistance heat caused by arc generation and transmit a fire sign abnormal signal as a weak radio wave, and an arc detection receiver that communicates with the arc detection transmitters in an N:1 ratio and receives the fire sign detection signal when it occurs and transmits it to the outside.

[0194]

[0195] That is, the arc detection device (200) is configured to include a wireless communication unit (220), wherein the wireless communication unit (220) is configured to include N arc detection transmitters that detect resistance heat resulting from arc generation and transmit a fire sign abnormal signal via weak radio waves, and the arc detection receiver communicates with the arc detection transmitters in an N:1 ratio and performs the function of receiving the fire sign detection signal when it occurs and transmitting it to a management server (700) in an external network.

[0196]

[0197] The arc detection receiver described above incorporates sensors that detect temperature, humidity, and illuminance internally and outputs them periodically. Meanwhile, the arc detection receiver may also be equipped with a function to detect odors.

[0198]

[0199] Meanwhile, the arc detection receiver has a temperature sensor, a humidity sensor, and an illuminance sensor built inside and periodically transmits temperature, humidity, and / or illuminance information inside the power facility to an external management server (700), and the management server (700) performs a function to analyze whether a fire has occurred more quickly based on the information.

[0200]

[0201] The above bimetal (230) is made by stacking and bonding two types of thin metals with different coefficients of thermal expansion, that is, different degrees of expansion and contraction depending on changes in temperature. When the temperature rises, the side with the larger coefficient of thermal expansion expands more and bends to the opposite side. Then, when the temperature drops again, it returns to its original state.

[0202] Meanwhile, an alloy of nickel (Ni) and iron (Fe) is used as a metal that does not expand well, and for a metal that expands well, one of the following is used: an alloy of nickel, manganese, and iron; an alloy of nickel, molybdenum, and iron; or an alloy of nickel, manganese, and copper (Cu).

[0203] The above bimetal (230) can be configured to open or close a switch by utilizing its property of bending according to temperature, and the bimetal (230) itself can be used as a switch to control a circuit.

[0204] Therefore, in the present invention, by utilizing the properties of the bimetal (230) as described above, the switch operation is made when the temperature generated by the arc in the power cable (100) rises higher than the standard, thereby preventing fire and other incidents and protecting the equipment.

[0205]

[0206] The present invention provides an arc detection transmission device for a functional power facility comprising the above-described configuration and function.

[0207] The present invention is useful for industries that produce, manufacture, sell, distribute, and research equipment for detecting signs of fire in power facilities.

[0208]

[0209] In particular, the present invention is useful for industries that produce, manufacture, sell, distribute, and research arc detection transmission devices for power facilities.

Claims

1. A battery that supplies power, and A wireless communication unit that operates by receiving power from the above battery and transmits resistance heat information of the power cable resulting from the arc generation to the outside via wireless communication, and A bimetal that detects resistance heat of the power cable due to arc generation in the power cable and mechanically turns on or off to selectively connect the battery and the wireless communication unit, and A light-emitting unit that lights up and emits light when the above bimetal operates and arc information is sent through the above wireless communication unit, and The above bimetal is an arc detection transmission device of a functional power facility that detects resistance heat of the power cable, maintains an OFF state when the temperature is below a reference temperature to disconnect the battery and the wireless communication unit, and turns ON when the temperature is above the reference temperature to connect the battery and the wireless communication unit.

2. In Paragraph 1, An arc detection transmission device for a functional power facility, characterized by having a current information providing unit on the side of the bimetal of the arc detection unit that provides current information according to temperature, and performing the function of providing current information (IF) to a wireless communication unit.

3. In Paragraph 1, The above-mentioned wireless communication unit includes an arc detection transmitter and an arc detection receiver, and An arc detection transmission device for a functional power facility, characterized in that the above-described arc detection receiver has a temperature sensor, a humidity sensor, and an illuminance sensor built inside.

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