WO2023229489A1 - Interrupteur différentiel avec système d'extinction d'incendie - Google Patents

Interrupteur différentiel avec système d'extinction d'incendie Download PDF

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Publication number
WO2023229489A1
WO2023229489A1 PCT/RU2023/000082 RU2023000082W WO2023229489A1 WO 2023229489 A1 WO2023229489 A1 WO 2023229489A1 RU 2023000082 W RU2023000082 W RU 2023000082W WO 2023229489 A1 WO2023229489 A1 WO 2023229489A1
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WO
WIPO (PCT)
Prior art keywords
temperature
module
sensitive device
aos
conductors
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PCT/RU2023/000082
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English (en)
Russian (ru)
Inventor
Евгений Сергеевич КАПЛУН
Original Assignee
ГАБЛИЯ, Юрий Александрович
Евгений Сергеевич КАПЛУН
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by ГАБЛИЯ, Юрий Александрович, Евгений Сергеевич КАПЛУН filed Critical ГАБЛИЯ, Юрий Александрович
Publication of WO2023229489A1 publication Critical patent/WO2023229489A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches

Definitions

  • the claimed group of inventions relates to the field of electrical engineering and energy and can be used in the form of a differential switch (RCD) or an input RCD of electrical panels to prevent electric shock to a person, prompt emergency shutdown of electrical equipment using a differential release without initiating a fire extinguishing system or when exposed to high temperatures , for example, in the event of a fire, when initiating an aerosol-forming or gas-forming fire extinguishing system (extinguishing a fire using an aerosol-forming or gas-forming composition while simultaneously opening the line with a differential switch mechanism.
  • the device is designed to be installed on a DIN rail.
  • Differential switches are known from the prior art, installed in an electrical panel on a DIN rail and performing the functions of a fuse in the event of protecting a person from electric shock due to electric leaks.
  • RCDs Differential switches
  • a molded case for currents 16-630 A, up to 690 V Schneider Electric, product catalog 2021 available online at the Internet resource https://download.schneider-electric.com).
  • a solution is known from the patent level of technology, which is a pyrotechnic electrical circuit disconnector (RU 139706 U1, 04/20/2014).
  • the known disconnector contains a housing in which a conductor and a pyrotechnic charge with a melting temperature of the conductor lower than the combustion temperature of the pyrotechnic charge are located in close proximity or in contact with each other, while the pyrotechnic charge is launched using a thermal cord or from a fire detector.
  • the known solution like the one mentioned above, does not provide the possibility of eliminating the source of fire.
  • the functioning of the disconnector when activated by a fire detector depends on the performance of external means, which reduces the reliability of its operation.
  • the known solution does not operate quickly, since for its operation it is necessary to reach the activation temperature of the thermal cord, and the source of this temperature is external, i.e. provided by the source of fire itself. Obviously, until this temperature is reached, the fire will spread unhindered, causing damage to surrounding equipment.
  • the circuit breaker contains a main body, as well as a container with a fire extinguishing agent and a supercharger attached to it. Control of the operation of the supercharger and spraying of the fire extinguishing agent is ensured when a certain temperature is reached due to a thermal switch located on the switch body.
  • the known solution eliminates the above-mentioned disadvantages of the prior art in terms of providing the primary fire extinguishing function. Despite this, the known solution has a number of disadvantages, which are as follows.
  • the complexity and bulkiness of the design of the specified switch prevents its placement in a standard housing of electrical devices for installation on a DIN rail in an electrical panel.
  • the placement of means capable of extinguishing a fire in an electrical panel is critically important, since in a closed limited space of a panel with tightly packed electrical modules, the spread of fire occurs rapidly, which leads to the emergence of secondary fires due to a short circuit of wires with burnt or melted insulation and irreversible damage to modules.
  • the known solution like the one discussed above under patent RU 139706 U1, does not have operational efficiency, since for its operation it is necessary to reach the activation temperature of the thermal switch, and this the temperature is determined by an external source, i.e. the source of the fire itself. As a result, before the fire extinguishing agent is activated, significant damage to the electrical modules located in the electrical panel is possible.
  • a solution is known that is an autonomous fire extinguishing device with fixation on a DIN rail (utility model patent No. 204767 dated 06/03/21).
  • the known device contains a housing in which a fire extinguishing aerosol generator module with a thermochemical initiator is located.
  • the known solution eliminates the above-mentioned disadvantages of the prior art in terms of providing the primary fire extinguishing function. Despite this, the known solution has a number of disadvantages, which are as follows.
  • the autonomous device is made in the form of a separate module and does not have the ability to open power electrical lines, which significantly increases the likelihood of re-ignition of electrical wiring in electrical cabinets and increases the likelihood of electric shock to people. Also, the autonomous device cannot be initiated by an external control signal and does not generate an information signal about activation, which does not allow combining autonomous devices into groups or informing about the start of the fire extinguishing process.
  • the technical problem is to overcome the above-mentioned disadvantages of analogues.
  • the technical result consists in increasing the efficiency of primary fire extinguishing with increasing efficiency in preventing the spread of fire in a confined space, in particular, such as an electrical panel, while simultaneously opening the electrical circuit, while the described device can open the electrical circuit in the event of electric current leaks without initiating an aerosol-forming or gas-forming fire extinguishing system, acting as a standard differential switch for single or three phase connections.
  • the differential switch (RCD) in a single-phase design with an aerosol-forming or gas-forming composition placed inside (AOC module) contains power electrical terminals for single-phase connection (14-14') located in the housing, electrical terminals (13-13') for connecting the neutral wire, AOS module (12), electric igniter of the AOS module (9) and initiating temperature-sensitive device (5); Moreover, the input phase terminal (14) and the input electrical terminal (13) for connecting the neutral wire through conductors connected to the electric igniter of the AOS module (9) and the initiating temperature-sensitive device (5).
  • an RCD which additionally contains a shutdown temperature-sensitive device (8), a contact group (18) for initiation by an external signal, a trigger sensor (21) and a button (25) for manual start of the electric igniter; wherein the electric igniter of the AOS module (9) is connected through conductors to the contact group (18) for initiation by an external signal; a thermally sensitive shutdown device (8) is located in close proximity to the AOS module or in the AOS module and is connected through conductors to the automatic phase shutdown mechanism and the zero shutdown mechanism; the response sensor (21) is located in close proximity to the AOS module or in the AOS module, connected by conductors (20) to the contact group (18); the button (25) for manually starting the electric igniter is connected to the electric igniter of the AOS module (9).
  • the aerosol-forming or gas-forming composition is a low-temperature solid fuel composition.
  • the device further comprises a smoke sensor (17) connected by conductors to the initiating temperature sensing device (5) in series or parallel through the conductors.
  • the device is designed for mounting on a DIN rail;
  • the DIN rail mount is a slot for the DIN rail located on the rear side of the device housing, in which a latch-mount is installed for fixing the housing on the DIN rail.
  • additional holes are made in the housing for the release of an aerosol-forming or gas-forming composition, and the response temperature of the initiating temperature-sensitive device (5) is less than the response temperature of the shutdown temperature-sensitive device (8).
  • the specified technical result according to the second embodiment is achieved in a differential switch (RCD) in a three-phase design with an aerosol-forming or gas-forming composition placed inside (AOS module), containing power electrical terminals for three-phase connection located in the housing (14-14'), electrical terminals (13 ) for connecting the neutral wire, AOS module (12), electric igniter of the AOS module (9), initiating a temperature-sensitive device (5); one of the three input phase terminals (14) and the input electrical terminal for connecting the neutral wire through the conductors are connected to the electric igniter of the AOS module (9) and the initiating temperature-sensitive device (5) -
  • the device further comprises a shutdown temperature-sensitive device (8), a contact group (18) for initiation by an external signal, an actuation sensor (21) and a button (25) for manual start of the electric igniter; wherein the electric igniter of the AOS module (9) is connected through conductors to the contact group (18) for initiation by an external signal; a thermally sensitive shutdown device (8) is located in close proximity to the AOS module or in the AOS module and is connected through conductors to the automatic phase shutdown mechanism and the zero shutdown mechanism; the response sensor (21) is located in close proximity to the AOS module or in the AOS module, connected by conductors (20) to the contact group (18); the button (25) for manually starting the electric igniter is connected to the electric igniter of the AOS module (9).
  • the aerosol-forming or gas-forming composition is a low-temperature solid fuel composition.
  • the device further comprises a smoke sensor (17) connected by conductors to the initiating temperature sensing device (5) in series or parallel through the conductors.
  • the device is designed for mounting on a DIN rail;
  • the DIN rail mount is a slot for a DIN rail located on the rear side of the device housing, in which a latch-mount is installed for fixing the housing on the DIN rail.
  • additional holes are made in the housing for the release of an aerosol-forming or gas-forming composition, and the response temperature of the initiating temperature-sensitive device (5) is less than the response temperature of the shutdown temperature-sensitive device (8).
  • the following provides information about an advantageous embodiment of the device that is not intended for limitation of the scope of the requested protection, determined by the characteristics of the independent claim.
  • the proposed product is mounted in an electrical cabinet on a DIN rail and is a separate device.
  • the product can be used in single-phase networks.
  • the product body contains: a pair of phase terminals (14-14’) and a pair of neutral terminals (13-13’).
  • a mechanism for automatically disconnecting phase and zero N (4), power wires of phase (1), and neutral wire N (2) are connected to the device through phase and neutral terminals.
  • automatic phase and zero N shutdown mechanisms are fixed (4), and in the side housing the AOS module (12) with an electric igniter of the AOS module (9) is fixed.
  • Aerosol-forming or gas-forming fire extinguishing systems are widespread in the state of the art.
  • we can consider the principle of operation of an aerosol-forming composition based on the inhibition of chemical processes occurring in a flame by highly dispersed particles (aerosol) of alkali metal salts, released during the combustion of an aerosol-forming charge and capable of being suspended for a long time, which ensures elimination source of fire.
  • aerosol-forming composition when an aerosol-forming composition operates, a zone with a significantly elevated temperature is provided around it (for example, more than 300 °C).
  • This effect is used in the device to increase the efficiency of primary fire extinguishing with an increase in the effectiveness of preventing the spread of fire in a confined space, and initiation of a mechanism for automatic shutdown of the phase and zeroK (4).
  • a disconnecting temperature-sensitive device (8) can be made with an electrical power and control module - not shown) according to Fig. 1 and Fig.
  • the signal for which is generated by the initiating temperature-sensitive device (5) can be made with an electrical power and control module - not shown) and/or a smoke sensor (17).
  • the distance from the shutdown temperature-sensitive device (8) to the AOS module (12) is selected from the condition that when the AOS module (12) is triggered, the resulting temperature ensures that the shutdown temperature-sensitive device (8) is triggered by overheating (for example, at 100 °C), thereby closing the shutdown temperature-sensitive device (8) generating a signal to turn off the automatic phase and zero N shutdown mechanism (4).
  • the term “close proximity” within the framework of this application should be understood as such a placement in which the heat from the operating AOS module (12) could ensure the activation of the shutdown temperature-sensitive device (8).
  • the housing contains an initiating temperature-sensitive device (5) and/or a smoke sensor (17).
  • the properties of the initiating temperature-sensitive device (5) are selected in such a way that its operation is ensured before the response temperature of the shutdown temperature-sensitive device (8) is reached, and the smoke sensor (17) is activated when a certain concentration of combustion products appears in the electrical cabinet.
  • the response temperature of the initiating temperature-sensitive device (5) can be selected in a discrete range (for example, 600C, 700C, 800C) depending on the conditions of the device placement.
  • the initiating temperature-sensitive device (5) can additionally be equipped with an electrical power supply and control module (not shown) for the electric igniter of the AOC module (9).
  • the initiating temperature-sensitive device (5) and the smoke sensor (17) can be connected in parallel, which allows you to start the extinguishing process when any of the sensors is triggered, or in series, which involves the activation of the AOC module (12) only when the initiating temperature-sensitive device (5) and the smoke sensor are triggered (17) simultaneously.
  • the proposed device works as follows.
  • phase terminals (14-14') are connected to a mechanism for automatic phase and zero disconnection N (4). This ensures that electric current flows through the circuit: Terminal (14) - Conductor (1) - Automatic phase and zero disconnection N (4) - Conductor - Terminal (14'). Also, the neutral terminals (13-13') are connected to each other by corresponding conductors through an automatic phase and zero N (4) shutdown mechanism, ensuring the operability of the power electrical panel. Simultaneously with those indicated, the input terminal (14 phases) and the input terminal (13 zero N) through the corresponding conductors are connected to the initiating temperature-sensitive device (5) and/or smoke sensor (17) and the electric igniter of the AOS module (9) according to FIG. 1 and fig. 2.
  • the temperature in the electrical panel (fire of the electrical panel) in which the device is installed rises to a predetermined critical value determined by the properties of the initiating temperature-sensitive device (5), (with or without an electrical power supply and control system) (for example, 60°C, 70° C, 80°C), heated air enters the housing (3) of the device through the hole (6), due to which the initiating temperature-sensitive device (5) and/or the smoke sensor (17) connects the electric igniter of the AOS module (9), (via electrical power system or without it) with an input terminal (14 phase) and an input terminal (13 zero N), thereby providing the flow of electric current capable of starting the electric igniter of the AOS module (9) and initiating the operation of the AOS module (12).
  • a predetermined critical value determined by the properties of the initiating temperature-sensitive device (5), (with or without an electrical power supply and control system) (for example, 60°C, 70° C, 80°C)
  • heated air enters the housing (3) of the device through the hole (6), due to which the initi
  • the aerosol-forming or gas-forming composition begins to emerge in the form of a gaseous mixture, filling the protected volume of the electrical panel and suppressing the combustion of the components of the electrical panel.
  • a heating zone is formed to a temperature of, for example, over 300 °C, influencing with its heat flow the shutdown temperature-sensitive device (8), which, heating up above the temperature of its own overheating response (for example, more than 100 °C), is triggered, thereby generating a signal to open the automatic phase and zero shut-off mechanism N (4).
  • the initiating temperature-sensitive device (5) and/or the smoke sensor (17) is triggered, according to FIG. 1 and fig. 2, during an electrical panel fire, the panel is extinguished simultaneously using the AOS module (12) and the phase wire (1) is disconnected along the line of phase terminals (14-14') and the neutral wire N (2) along the line of neutral terminals N (13- 13') according to FIG. 1, fig. 2, which can also be attributed to the advantage of the proposed device compared to solutions known from the prior art.
  • the use of the AOS module (12) as a means of ensuring the operation of the RCD also ensures acceleration of the opening of electrical circuits up to the occurrence of current leakage, thereby preventing the occurrence of secondary fires, since the time required to reach the response temperature of the shutdown temperature-sensitive device (8) due to the operation of the AOS module (seconds) is significantly less than if the response of the shutdown temperature-sensitive device (8) would be provided by the heat of an external source (i.e., the source of the fire).
  • the device can be implemented using means and methods known from the prior art for a specialist, and an analysis of the state of the art did not reveal solutions that would have all the essential features presented in the formula.
  • the product body contains: a pair of phase terminals (14-14’) and a pair of neutral terminals (13-13’). Connected to the device through the phase and neutral terminals is a mechanism for automatic shutdown of phase and zero N (4), phase power wires (1), and neutral wires (2).
  • Aerosol-forming or gas-forming fire extinguishing systems are widespread in the state of the art.
  • a thermally sensitive shutdown device (8) can be provided with an electrical power and control module - not shown) and/or a smoke sensor (17) (with or without a control and power system) according to FIG. 3 and fig. 4, is responsible for generating a signal to turn off the automatic shutdown of phase and zero N (4) in the event of a fire in the electrical panel.
  • an initiating temperature-sensitive device (5) is located in the housing.
  • the properties of the initiating temperature-sensitive device (5) are selected in such a way that its operation is ensured after reaching the response temperature of the shutdown temperature-sensitive device (8), installed next to it and connected in series with it in the electrical circuit, and/or operation of the smoke sensor (17).
  • the response temperature of the shutdown temperature-sensitive device (8) can be selected in a discrete range (for example, 600C, 700C, 800C) depending on the device placement conditions, and the response temperature of the initiating temperature-sensitive device (5) can be selected in the range (for example, 900C , 1000 ⁇ , 1100 ⁇ ).
  • the initiating temperature-sensitive device (5) can additionally be equipped with an electrical power and control module (not shown).
  • the smoke sensor (17) can be connected to the shutdown temperature-sensitive device (8) in parallel or in series, or may be completely absent, depending on the task at hand.
  • the proposed device works as follows.
  • phase terminals (14-14') are connected to a mechanism for automatic phase and zero disconnection (4).
  • Terminal (14) - Conductor (1) - Mechanism for automatic phase and zero disconnection (4) - Conductor - Terminal (14').
  • the neutral terminals (13-13') are connected to each other by the corresponding conductors through the phase and zero disconnect mechanism N (4), ensuring the operability of the power electrical panel.
  • the input terminal (14 phases) and the input terminal (13 zero N) are connected through the corresponding conductors to the initiating temperature-sensitive device (5), the shutdown temperature-sensitive device (8) and/or the smoke sensor (17) and the electric igniter of the AOC module ( 9) according to Fig. 3 and fig. simultaneously phase and zero disconnection N (4) - Temperature-sensitive disconnecting device (8) - Input terminal (13 zero N).
  • the temperature in the electrical panel (fire of the electrical panel) in which the device is installed rises to a predetermined critical value determined by the properties of the shutdown temperature-sensitive device (8) (with or without an electrical power supply and control system) (for example, 60°C, 70°C , 80°C), heated air enters the housing (3) of the device through the hole (6), due to which the shutdown temperature-sensitive device (8) is activated, or when the smoke concentration reaches the level of the smoke sensor (17), the smoke sensor is activated ( 17), which leads to the disabling of the automatic phase and zero N shutdown mechanism (4).
  • a predetermined critical value determined by the properties of the shutdown temperature-sensitive device (8) (with or without an electrical power supply and control system) (for example, 60°C, 70°C , 80°C)
  • heated air enters the housing (3) of the device through the hole (6), due to which the shutdown temperature-sensitive device (8) is activated, or when the smoke concentration reaches the level of the smoke sensor (17), the smoke sensor is activated ( 17), which leads to
  • the initiating temperature-sensitive device (5) is triggered, as a result of which electric current briefly begins to flow along the circuit: Input terminal (14) - Conductor - Electric igniter of the AOS module (9 ) - Initiating temperature-sensitive device (5) - Disabling temperature-sensitive device (8) - Conductor - Input terminal (13), thereby providing a short-term flow of electric current capable of starting the electric igniter of the AOS module (9) and initiating the operation of the AOS module (12). After initiation of the electrical igniter of the AOC module (9), it burns out and finally opens the circuit.
  • Input terminal (14) Conductor - Electric igniter of the AOC module (9) - Initiating temperature sensing device (5) - Shutting off temperature sensing device (8) - Conductor - Input terminal ( 13).
  • the device in the preferred embodiment contains an input contact group (18), which allows, when a signal is applied to it, through conductors (10) to force the start of the module’s electric igniter AOS (9) using an external signal.
  • This contact group also has a reverse function - when connecting several circuit breakers or circuit breaker expansion modules in a line to increase the protected volume, when one of the initiating temperature-sensitive devices (5) and/or a smoke sensor (17) in any of the devices is triggered, the rest the connected devices will receive an input trigger signal and will be forced to initiate along with the triggered device.
  • the device in an alternative embodiment contains a manual start button (25) of the electric igniter of the AOS module (9).
  • the manual start button (25) When you press the manual start button (25), the electric igniter of the AOS module (9) is directly connected to phase (1) and zero N (2), which allows you to manually initiate the electric igniter of the AOS module (9).
  • the device in an alternative embodiment contains a response sensor (21), which in turn, via conductors (20), sends a signal to the contact group (18) (additional contacts) about the initiation of an aerosol-forming or gas-forming composition for processing the received signal by external control automation.
  • the device body can also be fixed to a DIN rail using a screw connection, however, fastening using a DIN rail assembly with a latch (23) is preferable, because makes it possible to install the device in a wider range of locations in a panel or cabinet, which leads to increased fire extinguishing efficiency.
  • a distinctive feature of the device is also the ability to turn off the power part of the electrical panel in the event of an electric current leak without initiating the AOS module (12) with the possibility of subsequently arming the RCD to its original state using the automatic phase and zero N shutdown mechanism (4) and continuing operation of the device.
  • the device can be implemented using means and methods known from the prior art for a specialist, and an analysis of the state of the art did not reveal solutions that would have all the essential features presented in the formula.
  • the following provides information about an advantageous embodiment of the device, which is not intended to limit the scope of the requested protection, defined by the characteristics of an independent claim.
  • the proposed product is mounted in an electrical cabinet on a DIN rail and is a separate device.
  • the product can be used in three-phase networks.
  • the product body contains: three pairs of phase terminals (14-14’) and a pair of neutral terminals (13-13’). Connected to the device through the phase and neutral terminals is a mechanism for automatically disconnecting phases and zero N (4), power wires of phases A, B, C (1, 15, 16), and neutral wire N (2).
  • Mechanism for automatic shutdown of phases and zero N (4) are fixed, and in the side housing an AOS module (12) with an electric igniter of the AOS module (9) is fixed.
  • Aerosol-forming or gas-forming fire extinguishing systems are widespread in the state of the art.
  • we can consider the principle of operation of an aerosol-forming composition based on the inhibition of chemical processes occurring in a flame by highly dispersed particles (aerosol) of alkali metal salts, released during the combustion of an aerosol-forming charge and capable of being suspended for a long time, which ensures elimination source of fire.
  • aerosol-forming composition when an aerosol-forming composition operates, a zone with a significantly elevated temperature is provided around it (for example, more than 300 °C).
  • This effect is used in the device to increase the efficiency of primary fire extinguishing with an increase in the effectiveness of preventing the spread of fire in a confined space, and initiation of a mechanism for automatic shutdown of phases and zero N (4).
  • a disconnecting temperature-sensitive device (8) can be made with an electrical power and control module - not shown) according to Fig. 5 and fig.
  • the signal for which is generated by the initiating temperature-sensitive device (5) ( can be made with an electrical power and control module - not shown) and/or a smoke sensor (17).
  • the distance from the shutdown temperature-sensitive device (8) to the AOS module (12) is selected from the condition that when the AOS module (12) is triggered, the resulting temperature ensures that the shutdown temperature-sensitive device (8) is triggered by overheating (for example, at 100 °C), thereby closing the shutdown temperature-sensitive device (8) generating a signal to turn off the automatic phase and zero shutdown mechanism N (4).
  • the term “close proximity” within the framework of this application should be understood as such a placement in which the heat from the operating AOS module (12) could ensure the activation of the shutdown temperature-sensitive device (8).
  • the housing houses an initiating temperature-sensitive device (5) and/or a smoke sensor (17).
  • the properties of the initiating temperature-sensitive device (5) are selected in such a way that its operation is ensured before the response temperature of the shutdown temperature-sensitive device (8) is reached, and the smoke sensor (17) is activated when a certain concentration of combustion products appears in the electrical cabinet.
  • the response temperature of the initiating temperature-sensitive device (5) can be selected in a discrete range (for example, 600C, 700C, 800C) depending on the conditions of the device placement.
  • the initiating temperature-sensitive device (5) can additionally be equipped with an electrical power supply and control module (not shown) for the electric igniter of the AOC module (9).
  • the initiating temperature-sensitive device (5) and the smoke sensor (17) can be connected in parallel, which allows you to start the extinguishing process when any of the sensors is triggered, or in series, which involves the activation of the AOC module (12) only when the initiating temperature-sensitive device (5) and the smoke sensor are triggered (17) simultaneously.
  • the proposed device works as follows. In normal condition fig. 5, fig. 6 phase terminals (14-14') are connected to an automatic phase and zero disconnect mechanism N (4). Thus, the flow of electric current through the circuits is ensured: Terminal (14) - Conductor (1) - Automatic phase and zero disconnection mechanism N (4) - Conductor - Terminal (14'), Terminal (14) - Conductor (15) - Mechanism automatic phase and zero disconnection N (4) - Conductor - Terminal (14'), Terminal (14) - Conductor (16) - Mechanism for automatic phase and zero disconnection N (4) - Conductor - Terminal (14').
  • the neutral terminals (13-13') are connected to each other by appropriate conductors through an automatic phase and zero N (4) disconnection mechanism, ensuring the operability of the power electrical panel. Simultaneously with those indicated, any input terminal (14 phases A, B, C) and input terminal (13 zero N) through the corresponding conductors are connected to the initiating temperature-sensitive device (5) and/or smoke sensor (17) and the electric igniter of the AOS module (9 ) according to Fig. 5 and fig. 6.
  • the temperature in the electrical panel (fire of the electrical panel) in which the device is installed rises to a predetermined critical value determined by the properties of the initiating temperature-sensitive device (5), (with or without an electrical power supply and control system) (for example, 60°C, 70° C, 80°C), heated air enters the housing (3) of the device through the hole (6), due to which the initiating temperature-sensitive device (5) and/or the smoke sensor (17) connects the electric igniter of the AOS module (9), (via electrical power system or without it) with any input terminal (14 phases A, B, C) and input terminal (13 zero N), thereby providing the flow of electric current capable of starting the electric igniter of the AOC module (9) and initiating the operation of the AOC module (12).
  • a predetermined critical value determined by the properties of the initiating temperature-sensitive device (5), (with or without an electrical power supply and control system) (for example, 60°C, 70° C, 80°C)
  • heated air enters the housing (3) of the device through the hole (6), due
  • the aerosol-forming or gas-forming composition begins to emerge in the form of a gaseous mixture, filling the protected volume of the electrical panel and suppressing the combustion of the components of the electrical panel.
  • a heating zone is formed to a temperature of, for example, over 300 °C, influencing with its heat flow the shutdown temperature-sensitive device (8), which, heating up above the temperature of its own overheating response (for example, more than 100 °C), is triggered, thereby generating a signal to open the automatic phase and zero disconnection mechanism N (4).
  • the panel is simultaneously extinguished using the AOS module (12) and opened phase wires (1, 15, 16) along the line of phase terminals (14-14') and neutral wire N (2) along the line of neutral terminals N (13-13') according to Fig. 5, fig. 6, which can also be attributed to the advantage of the proposed device compared to solutions known from the prior art.
  • the use of the AOS module (12) as a means of ensuring the operation of the RCD also ensures acceleration of the opening of electrical circuits before current leakage occurs, thereby preventing the occurrence of secondary fires, since the time required to reach the operating temperature of the tripping temperature-sensitive device (8 ) due to the operation of the AOS module (seconds) is significantly less than if the operation of the shutdown temperature-sensitive device (8) were provided by the heat of an external source (i.e., the source of the fire).
  • the device can be implemented using means and methods known from the prior art for a specialist, and an analysis of the state of the art did not reveal solutions that would have all the essential features presented in the formula.
  • the product body contains: three pairs of phase terminals (14-14’) and a pair of neutral terminals (13-13’). Connected to the device through the phase and neutral terminals is a mechanism for automatic shutdown of phases and zero N (4), power wires of phases A, B, C (1, 15, 16), wires of the neutral wire N (2).
  • Aerosol-forming or gas-forming fire extinguishing systems are widespread in the state of the art.
  • it can be considered the principle of operation of the aerosol-forming composition, based on the inhibition of chemical processes occurring in the flame by highly dispersed particles (aerosol) of alkali metal salts, released during the combustion of the aerosol-forming charge and capable of being suspended for a long time, which ensures the elimination of the source of fire.
  • a thermally sensitive shutdown device (8) (can be provided with an electrical power and control module - not shown) and/or a smoke sensor (17) (with or without a control and power system) according to FIG. 7 and fig. 8, is responsible for generating a shutdown signal for the automatic shutdown mechanism of phases and zero N (4) in the event of a fire in the electrical panel.
  • an initiating temperature-sensitive device (5) is located in the housing.
  • the properties of the initiating temperature-sensitive device (5) are selected in such a way that its operation is ensured after reaching the response temperature of the shutdown temperature-sensitive device (8), installed next to it and connected in series with it in the electrical circuit, and/or operation of the smoke sensor (17).
  • the response temperature of the shutdown temperature-sensitive device (8) can be selected in a discrete range (for example, 600C, 700C, 800C) depending on the device placement conditions, and the response temperature of the initiating temperature-sensitive device (5) can be selected in the range (for example, 900C , 1000 ⁇ , 1100 ⁇ ).
  • the initiating temperature-sensitive device (5) can additionally be equipped with an electrical power and control module (not shown).
  • the smoke sensor (17) can be connected to the shutdown temperature-sensitive device (8) in parallel or in series, or may be completely absent, depending on the task at hand.
  • the proposed device works as follows.
  • phase terminals (14-14') are connected to an automatic phase and zero disconnect mechanism N (4).
  • the neutral terminals (13-13') are connected to each other by appropriate conductors through an automatic phase and zero N (4) disconnection mechanism, ensuring the operability of the power electrical panel.
  • any input terminal (14 phases A, B, C) and input terminal (13 zero N) through corresponding conductors are connected to the initiating temperature-sensitive device (5), the shutdown temperature-sensitive device (8) and/or the smoke sensor (17) and the electric igniter of the AOC module (9) according to FIG. 7 and fig. simultaneously disconnecting phases and zero N (4) - Disconnecting temperature-sensitive device (8) - Input terminal (13 zero N).
  • the temperature in the electrical panel (fire of the electrical panel) in which the device is installed rises to a predetermined critical value determined by the properties of the shutdown temperature-sensitive device (8) (with or without an electrical power supply and control system) (for example, 60°C, 70°C , 80°C), heated air enters the housing (3) of the device through the hole (6), due to which the shutdown temperature-sensitive device (8) is activated, or when the smoke concentration reaches the level of the smoke sensor (17), the smoke sensor is activated ( 17), which leads to the disabling of the automatic phase and zero N shutdown mechanism (4).
  • a predetermined critical value determined by the properties of the shutdown temperature-sensitive device (8) (with or without an electrical power supply and control system) (for example, 60°C, 70°C , 80°C)
  • heated air enters the housing (3) of the device through the hole (6), due to which the shutdown temperature-sensitive device (8) is activated, or when the smoke concentration reaches the level of the smoke sensor (17), the smoke sensor is activated ( 17), which leads to
  • the initiating temperature-sensitive device (5) is triggered, as a result of which electric current briefly begins to flow along the circuit: any input terminal (14) - Conductor - Electric igniter of the AOS module ( 9) - Initiating temperature-sensitive device (5) - Disabling temperature-sensitive device (8) - Conductor - Input terminal (13), thereby providing a short-term flow of electric current capable of starting the electric igniter of the AOS module (9) and initiating the operation of the AOS module (12) .
  • the aerosol-forming or gas-forming composition begins to emerge in the form of a gaseous mixture, filling the protected volume of the electrical panel and suppressing the combustion of the components of the electrical panel.
  • the device in the preferred embodiment contains an input contact group (18), which allows, when a signal is applied to it, through conductors (10), to force the start of the electric igniter of the AOS module (9) using an external signal.
  • This contact group also has a reverse function - when connecting several circuit breakers or circuit breaker expansion modules in a line to increase the protected volume, when one of the initiating temperature-sensitive devices (5) and/or a smoke sensor (17) in any of the devices is triggered, the rest the connected devices will receive an input trigger signal and will be forced to initiate along with the triggered device.
  • the device in an alternative embodiment contains a manual start button (25) of the electric igniter of the AOS module (9).
  • the manual start button (25) When you press the manual start button (25), the electric igniter of the AOS module (9) is directly connected to any phase and zero N (2), which allows you to manually initiate the electric igniter of the AOS module (9).
  • the device in an alternative embodiment contains a response sensor (21), which in turn, via conductors (20), sends a signal to the contact group (18) (additional contacts) about the initiation of an aerosol-forming or gas-forming composition for processing the received signal by external control automation.
  • the device body can also be fixed to a DIN rail using a screw connection, however, fastening using a DIN rail assembly with a latch (23) is preferable, because makes it possible to install the device in a wider range of locations in a panel or cabinet, which leads to increased fire extinguishing efficiency.
  • a distinctive feature of the device is also the ability to turn off the power part of the electrical panel in case of electric current leakage without initiation AOS module (12) with the possibility of subsequent arming of the RCD to its original state using the automatic phase and zero shutdown mechanism (4) and continued operation of the device.
  • the device can be implemented using means and methods known from the prior art for a specialist, and an analysis of the state of the art did not reveal solutions that would have all the essential features presented in the formula.

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

L'invention se rapporte au domaine du génie électrique et de la production d'électricité, et peut être utilisée pour protéger des équipements électriques monophasés ou triphasés contre l'action de températures élevées ainsi que contre les surcharges et les courts circuits. Cet interrupteur différentiel comprend, disposés dans un corps, des bornes électriques pour connecter les phases, des bornes électriques pour connecter le conducteur neutre, un module dans lequel se trouve une composition génératrice d'aérosol ou génératrice de gaz (CGA) (12), un inflammateur électrique du module CGA (9) et un dispositif thermosensible de déclenchement (5). La borne d'entrée de phase (14) et la borne électrique d'entrée (13) pour connecter le conducteur neutre via des conducteurs sont connectées à l'inflammateur du module CGA (9) et au dispositif thermosensible de déclenchement (5). L'invention permet d'augmenter les capacités fonctionnelles d'exinction d'incendie primaire en augmentant l'efficacité d'empêchement de propagation du feu dans un espace clos tout en déconnectant le circuit électrique.
PCT/RU2023/000082 2022-05-23 2023-03-24 Interrupteur différentiel avec système d'extinction d'incendie WO2023229489A1 (fr)

Applications Claiming Priority (2)

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RU2022113743 2022-05-23
RU2022113743 2022-05-23

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU139706U1 (ru) * 2013-08-23 2014-04-20 Владимир Викторович Куцель Пиротехнический разъединитель электрической цепи
CN210040091U (zh) * 2019-06-26 2020-02-07 诚硕电气有限公司 一种固定式断路器
WO2020139924A1 (fr) * 2018-12-26 2020-07-02 Eaton Intelligent Power Limited Dispositifs, systèmes et procédés modulaires et configurables de protection de circuit conformes à un emplacement dangereux
RU204767U1 (ru) * 2020-11-26 2021-06-09 Владимир Викторович Куцель Автономное устройство пожаротушения с фиксацией на DIN-рейку
RU2783451C1 (ru) * 2022-04-29 2022-11-14 Евгений Сергеевич Каплун Устройство защитного отключения с генератором огнетушащего аэрозоля (варианты)

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU139706U1 (ru) * 2013-08-23 2014-04-20 Владимир Викторович Куцель Пиротехнический разъединитель электрической цепи
WO2020139924A1 (fr) * 2018-12-26 2020-07-02 Eaton Intelligent Power Limited Dispositifs, systèmes et procédés modulaires et configurables de protection de circuit conformes à un emplacement dangereux
CN210040091U (zh) * 2019-06-26 2020-02-07 诚硕电气有限公司 一种固定式断路器
RU204767U1 (ru) * 2020-11-26 2021-06-09 Владимир Викторович Куцель Автономное устройство пожаротушения с фиксацией на DIN-рейку
RU2783451C1 (ru) * 2022-04-29 2022-11-14 Евгений Сергеевич Каплун Устройство защитного отключения с генератором огнетушащего аэрозоля (варианты)

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