RU2781781C1 - Power circuit breaker with fire extinguishing aerosol generator (options) - Google Patents

Abstract

FIELD: electrical engineering and energy.

SUBSTANCE: claimed solution relates to the field of electrical engineering and energy and can be used for prompt emergency shutdown of electrical equipment when exposed to high temperatures, such as fire, as well as overload, short circuit. A distinctive feature of the claimed solution is the simultaneous use as part of the product of the automatic phase shutdown mechanism and the zero N shutdown mechanism, the fire extinguishing aerosol generator (FEAG) together with the electric FEAG igniter, the initiating temperature-sensitive device (t1) and the shutdown temperature-sensitive device (t2) located in the impact zone heat generated during the operation of the fire extinguishing aerosol generator module (FEAG), the initiating temperature-sensitive device (t2) and the disconnecting temperature-sensitive device (t1), which are connected to each other in series, a smoke sensor installed in series or in parallel with the initiating temperature-sensitive device, the presence of an electrical initiator connection through conductors with a contact group to start the FEAG module from an external control signal, the presence of a FEAG module actuation sensor that transmits a signal through the conductors to the contact group for use with signaled by external devices, the presence of a thermal igniter capable of starting the FEAG module in the event of a power failure or failure of the initiating sensor or electrical initiator.

EFFECT: increasing the efficiency of primary fire extinguishing with an increase in the efficiency of preventing the spread of fire in a confined space, in particular, such as an electrical cabinet, while simultaneously protecting against short circuits, overload.

8 cl, 3 dwg

Description

Technical field

The claimed group of inventions relates to the field of electrical engineering and energy and can be used in the form of a power circuit breaker (power circuit breaker) or an introductory power circuit breaker (introductory circuit breaker) of electrical cabinets for prompt emergency shutdown of electrical equipment using a thermal or electromagnetic release without initiating the fire extinguishing system or when exposed to high temperatures, for example, in case of fire, when initiating an aerosol fire extinguishing system (extinguishing a fire using a fire extinguishing aerosol generator (GOA) and simultaneously opening the line with a circuit breaker mechanism. In this case, the device is made in a standard form factor used for power circuit breakers (power machines).

State of the art

From the prior art, power circuit breakers (power circuit breakers) are known that are installed in electrical cabinets and perform the functions of a fuse in the event of a short circuit or a prolonged overload of the power line. For example, such as circuit breakers and switch-disconnectors in a molded case for currents of 25-800 A, up to 690 V KARAT series BA88 circuit breakers and GENEREICA series BA66 circuit breakers from IEK, product catalog 2022 (available online at https://www. .iek.ru/products/catalog).

However, such well-known solutions do not provide opening of power circuits in the event of a fire in electrical cabinets and do not have the ability to extinguish fires in electrical cabinets.

From the patent prior art, a solution is known, which is a pyrotechnic disconnector of an electrical circuit (RU 139706 U1, 04/20/2014). The known disconnector contains a housing in which a conductor and a pyrotechnic charge are located in close proximity or in contact with each other, with a melting temperature of the conductor lower than the combustion temperature of the pyrotechnic charge, while the pyrotechnic charge is started using a thermal cord or from a fire detector.

The technical result, to which the said solution is aimed, is to reliably open the electrical circuit (turn off the power source) in the event of a fire or its threat, which prevents the development of a fire due to a short circuit.

However, the known solution, as well as the above, does not provide the possibility of eliminating the source of ignition. In addition, the functioning of the disconnector when it is activated by a fire detector depends on the performance of external means, which reduces the reliability of its operation.

It should also be noted that the known solution does not have a response time, 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 ignition. Obviously, before this temperature is reached, the fire will spread unhindered, causing damage to surrounding equipment.

To ensure the possibility of not only opening circuits, but also implementing primary automatic fire extinguishing, the prior art uses a combination of opening means and fire extinguishing means, as presented, for example, in the patent source CN 210040091 U, 02/07/2020.

In this solution, the circuit breaker contains the main body, as well as a container with a fire extinguishing agent and a supercharger attached to it. Control of blower actuation and spraying of fire-extinguishing composition is provided when a certain temperature is reached due to a thermal key located on the switch body.

The known solution eliminates the above-mentioned shortcomings 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 typical housing of electrical devices for installation on a DIN rail in an electrical panel. At the same time, the placement of means capable of extinguishing a fire source in an electrical panel is critically important, since in a closed limited space of a shield with densely packed electrical modules, fire spreads 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.

In addition to the above, the known solution, as well as the one discussed above according to patent RU 139706 U1, does not have a response time, since for its operation it is necessary to reach the activation temperature of the thermal switch, and this temperature is determined by an external source, i.e. the seat of the fire itself. As a result, before the fire extinguishing agent operates, significant damage to the electrical modules located in the electrical panel is possible.

From the patent prior art, a solution is known, which is an autonomous fire extinguishing device with fixation on a DIN rail (utility model patent No. 204767 dated 06/09/21). The known device contains a housing in which the module of the fire extinguishing aerosol generator with a thermochemical initiator is located.

The known solution eliminates the above-mentioned shortcomings 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 as a separate module and does not have the ability to open power 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 specified device is made in a housing for mounting on a DIN rail, which cannot be repeated in power circuit breakers, since the method of their fastening involves fastening to the wall of the electrical cabinet using screws or threaded studs, moreover, the specified device cannot be initiated external signal and itself does not generate an information signal about its operation.

The technical problem is to overcome the above disadvantages of analogues.

The technical result consists in increasing the efficiency of primary fire extinguishing with an increase in the efficiency of preventing the spread of fire in a confined space, in particular, such as an electrical cabinet or electrical substation, with simultaneous opening of the electrical circuit, while the described device can open the electrical circuit in the event of a short circuit or prolonged excessive load without initiation of an aerosol fire extinguishing system, operating as a typical power circuit breaker, and can also be initiated by an external signal and simultaneously issue an information confirmation signal about its operation.

Disclosure of invention

The specified technical result is achieved in a power circuit breaker with a fire-extinguishing aerosol generator (GOA) according to the first variant, containing power electrical terminals placed in the housing for connecting phase wires (phase terminals of phases “A”, “B”, “C”), an electrical terminal for connection of the neutral wire N (neutral terminal), the automatic phase disconnection mechanism, the GOA electric igniter, the initiating temperature-sensitive device (t1), for example, the thermal relay for starting the GOA electric igniter (in addition to the temperature-sensitive device (t1) or instead of the temperature-sensitive device (t1) can be a smoke detector (d2) is installed with or without a control and power system), which switches off the temperature-sensitive device (t2), for example, a thermal relay for controlling the shutdown of the automatic phase shutdown mechanism, and one of the input phases, for example phases “A” and the input zero N terminals through the electric igniter control conductors G OA is connected to an initiating temperature-sensitive device (t1) and/or a smoke sensor (d2) and an electric igniter GOA connected to the GOA module, and a shutdown temperature-sensitive device (t2) is located in the aerosol emission zone and is connected through conductors to the automatic phase shutdown mechanism, in the lower part of the housing has openings for the aerosol outlet, holes for the correct operation of the initiating temperature-sensitive device (t1), the smoke sensor (d2) (if any), and the response temperature of the initiating temperature-sensitive device (t1) is less than the temperature of the shut-off temperature-sensitive device (t2) and is determined by the requirements for the operation temperature of the fire-extinguishing aerosol generator (GOA). If the electric igniter fails to fire, the design provides for a thermal igniter capable of initiating the GOA module, the temperature of the thermal igniter response is higher than the response temperature of the initiating temperature-sensitive device (t1).

The specified technical result is also achieved in a power circuit breaker with a fire-extinguishing aerosol generator (GOA), according to the second version, containing power electrical terminals placed in the housing for connecting phase wires (phase terminals of phases “A”, “B”, “C”), electrical terminal for connecting the neutral wire N (zero terminal), automatic phase disconnection mechanism, GOA electric igniter, initiating temperature-sensitive device (t2) (for example, thermal relay) to start the GOA electric igniter (in addition to the temperature-sensitive device (t2) or instead of the temperature-sensitive device (t2 ) a smoke detector (d2) can be installed with or without a control and power system), a thermally sensitive disconnecting device (t1) connected to it in series (for example, a thermal relay) to control the shutdown of the automatic phase shutdown mechanism, with the input phase “A” and the input “zero” N terminals through control conductors lines with an GOA electric igniter connected to the GOA module, an initiating temperature-sensitive device (t2) and / or a smoke sensor (d2) and a shutdown temperature-sensitive device (t1), and the shutdown temperature-sensitive device (t1) is additionally connected through conductors to the automatic phase disconnection mechanism, in the lower part of the body there are holes for the exit of the aerosol, holes for the correct operation of the initiating temperature-sensitive device (t2), the smoke sensor (d2), if any, and the shutdown temperature-sensitive device (t1), and the response temperature of the shutdown temperature-sensitive device (t1) is less than the temperature of the initiating temperature sensitive device (t2). If the electric igniter fails to fire, the design provides for a thermal igniter capable of initiating the GOA module, the temperature of the thermal igniter response is higher than the response temperature of the initiating temperature-sensitive device (t2).

Further in the description, information is provided regarding the implementation of device options and confirmation of the achievement of the specified technical result.

Implementation of the invention

In accordance with Option 1, the following provides details of an advantageous embodiment of the device, not intended to limit the scope of the requested protection, as defined by the features of the independent claim.

In order to better understand the essence of the patent, the description refers to the explanatory drawing (Fig. 1, Fig. 2), according to which the external view of the case with a section (Fig. 1), the circuit of the power circuit breaker (machine) with a fire extinguishing aerosol generator ( Fig. 2), as well as placed in the power circuit breaker with GOA set of elements (Fig. 1, Fig. 2).

In a preferred embodiment, the proposed product is mounted in an electrical cabinet and is an independent device.

According to FIG. 1 and FIG. 2, in the body of the product there are: three pairs of phase terminals (14-14 ') and a neutral terminal (13). To the device through the phase terminals, for example, phases “A” are connected, the mechanism of the automatic phase switch (1), the power wires of the phases. On the underside of the housing according to Fig. 1 and FIG. 2, outlet holes (7) are made for the exit of the aerosol generated during the operation of the GOA module (12), as well as inlet holes (6) for the correct operation of the initiating temperature-sensitive device (t1) (5) and in the presence of a smoke sensor (d2) (17) .

Preferably in the center of the case, mechanisms for automatically switching off the phases are fixed, and a generator of fire-extinguishing aerosol (GOA) (12) is fixed in the side case. GOA are widespread in the prior art. As an example, the principle of operation of a generator 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 in a suspended state for a long time, can be considered, which ensures the elimination of the focus ignition. At the same time, it is known that during the operation of the GOA, a zone with a significantly elevated temperature (for example, more than 300 °C) is provided around it. This effect is used in a device to increase the efficiency of primary fire extinguishing with an increase in the efficiency of preventing the spread of fire in a confined space, and initiating a phase shutdown mechanism (1).

In the immediate vicinity of the GOA module (12) in the device case, a tripping temperature-sensitive device (t2) (8) is located (can be made with an electrical power and control module - not shown) according to Fig. 1 and FIG. 2, which is responsible for generating a signal to turn off the automatic phase switch in the event of a fire in the electrical panel and the operation of the GOA module (12) using the GOA electric igniter (9), the signal for which is generated by the initiating temperature-sensitive device (t1) (5) and, if available, a smoke sensor ( d2) (17) (can be made with power supply and control module - not shown). The choice of distance from the tripping temperature-sensitive device (t2) (8) to the GOA module (12) is selected from the condition that when the GOA module (12) is triggered, the resulting temperature ensures the tripping of the tripping temperature-sensitive device (t2) (8) due to overheating (for example, when 100 °C), thereby closing the tripping temperature-sensitive device (t2) (8) forming a signal to turn off the automatic phase shutdown mechanism. Thus, the term "close proximity" in the framework of this application should be understood as such an arrangement in which the heat from the operating GOA module (12) could trigger the tripping temperature-sensitive device (t2) (8).

Further, as shown in FIG. 1 and FIG. 2, an initiating temperature-sensitive device (t1) (5) and, if present, a smoke detector (d2) (17) are located in the housing. The properties of the initiating temperature-sensitive device (t1) (5) are chosen so that its operation is ensured until the temperature of the operation of the tripping temperature-sensitive device (t2) (8) is reached, and the smoke detector (d2) (17) is activated when a certain temperature appears in the electrical cabinet. concentration of combustion products. For example, the response temperature of the initiating temperature-sensitive device (t1) (5) can be selected in a discrete range (for example, 60°C, 70°C, 80°C) depending on the placement conditions of the device. The initiating temperature-sensitive device (t1) (5) can additionally be equipped with an electrical power supply and control module (not shown) of the GOA electric igniter (9). The initiating temperature-sensitive device (t1) (5) and the smoke sensor (d2) (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 implies the operation of the GOA module (12) only when the initiating temperature-sensitive device is triggered (t1) (5) and smoke detector (d2) (17) at the same time. Also, in the GOA module (12), together with an electric igniter (9), a thermal igniter (22) is built in, capable of starting the GOA module (12) on its own when the response temperature is reached.

The proposed device works as follows.

In the normal state of Fig. 1, fig. 2 phase terminals (14-14') are connected to the automatic shutdown mechanism. This ensures the flow of electric current through the circuits of phases “A”, “B”, “C”: Terminal (14) - Conductor - Automatic disconnection mechanism (1) - Conductor - Terminal (14’). Also, the neutral wire N is connected to the zero terminal (13), ensuring the operability of the power electrical panel. At the same time as indicated, the input terminal (14 phases “A”) and the input terminal (13 'neutral wire' N) are connected through the corresponding control conductors to the initiating temperature-sensitive device (t1) (5) and / or smoke detector (d2) (17) and electric igniter GOA (9) according to FIG. 1 and FIG. 2.

It should be noted that the current flow circuits in phases “B”, “C” look like this - in phase “B”: Terminal (14) - Conductor - Automatic opening mechanism (15) - Conductor - Terminal (14') and phase “ C”: Terminal (14) - Conductor - Automatic opening mechanism (16) - Conductor - Terminal (14').

When the temperature rises in the electrical cabinet (electrical cabinet fire) in which the device is installed to a predetermined critical value determined by the properties of the initiating temperature-sensitive device (t1) (5), (with or without an electrical power supply and control system) (for example, 60 ° C , 70°C, 80°C), heated air enters the body (3) of the device through the hole (6), due to which the initiating temperature-sensitive device (t1) (5) and / or the smoke sensor (d2) (17) connect the electrical GOA igniter (9), (with or without power supply system) with an input terminal (14 phase “A”) and an input terminal (13 “neutral wire” N), thereby ensuring the flow of electric current capable of starting the GOA electric igniter ( 9) and initiate the operation of the GOA module (12).

At the start of operation of the GOA module (12) from the housing (3) through the outlet holes (7) according to Fig. 1 and FIG. 2, the fire-extinguishing aerosol begins to come out 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. At the same time, a heating zone is formed around the GOA module (12) to a temperature, for example, over 300 °C, acting with its heat flow on the tripping temperature-sensitive device (t2) (8), which, heating up above the temperature of its own overheating operation (for example, more 100 °C), is triggered, thereby generating a signal for opening the mechanism for automatic shutdown of phases “A” (1), “B” (15), “C” (16).

Thus, when triggered by the initiating temperature sensing device (t1) (5) and/or the smoke detector (d2) (17), according to FIG. 1 and FIG. 2, during the ignition of the electrical panel, the shield is simultaneously extinguished using the GOA module (12) and the opening of phases “A”, “B”, “C” (1, 15, 16) along the line of phase terminals (14-14 ') according to fig. 1, fig. 2, which can also be attributed to the advantage of the proposed device in comparison with the solutions known from the prior art.

A feature of this device is also that in the event of failure of the operation of the initiating device (t1) (5) or electric igniter (9) or loss of input voltage, the GOA module will still be started using a thermal igniter (22) (Fig. 1), taking into account the fact that the response temperature of the thermal igniter is higher than the response temperature of the initiating device (t1) (5), and, for example, may be 170°C.

It is also important to note that the device contains an input contact group (18) that allows, when a signal is applied to it, to carry out a forced start of the electric igniter (9) using an external device. It is important to note that this contact group also has an inverse function - when several power circuit breakers or power circuit breakers expansion modules are connected in a line to increase the protected volume, when one of the initiating temperature-sensitive devices (t1) (5) and / or a smoke detector is triggered (d2) (17) in any of the devices, the other connected devices will receive an input trigger signal and will be forced to start along with the triggered device.

Also, the power circuit breaker has a GOA trip sensor (21), which, in turn, sends a signal through the conductors (20) to the contact group (19) for processing the received signal by external control automation.

A distinctive feature of the device is also the ability to turn off the power part of the electrical panel in the event of a short circuit or a long-term excess load of the power line without initiating the GOA module (12) with the possibility of subsequent cocking of the power automatic switch (power machine) to its original state using the mechanism (4) and continue operation devices.

In turn, the use of the GOA module (12) as a means of ensuring the operation of the power circuit breaker (power circuit breaker) also provides acceleration of the opening of electrical circuits before a short circuit or overvoltage occurs, thereby preventing the occurrence of secondary fires, since the time required to reach the operating temperature of the tripping temperature-sensitive device (t2) (8) due to the operation of the GOA module (seconds) is significantly lower compared to if the tripping of the tripping temperature-sensitive device (t2) (8) would be provided by the heat of an external source (i.e. fire seat).

Thus, only through the joint use of the above means and their operation through these connections, it is possible to achieve the technical result to which the proposed device is directed.

The device can be implemented using means and methods known from the prior art for a specialist, and the analysis of the prior art did not reveal solutions in it that would have all the essential features presented in the formula.

In accordance with option 2, in order to better understand the essence of the patent in the description, references are made to the explanatory drawing (Fig. 1, Fig. 3), according to which the external view of the housing with a cut (Fig. 1), the circuit of the power circuit breaker (power automatic machine) with a generator of fire-extinguishing aerosol (Fig. 3), as well as a set of elements located in the power circuit breaker with GOA (Fig. 1, Fig. 3).

In a preferred embodiment, the proposed product is mounted in an electrical cabinet and is an independent device.

According to FIG. 1 and FIG. 3, in the body of the product there are: three pairs of phase terminals (14-14 ') and a neutral terminal (13). To the device through the phase terminals, for example, phases “A” are connected, the mechanism of the automatic phase switch (1), the power wires of the phases. On the underside of the housing according to Fig. 1 and FIG. 3, outlet holes (7) are made for the exit of the aerosol formed during the operation of the GOA module (12), as well as inlets (6) for the correct operation of the shutdown temperature-sensitive device (t1) (5) and / or smoke sensor (d2) (17) , initiating temperature-sensitive device (t2) (8).

Preferably in the center of the case, mechanisms for automatically switching off the phases are fixed, and in the side case a generator of fire extinguishing aerosol (GOA) (12) with an electric igniter GOA (9) is fixed. GOA are widespread in the prior art. As an example, the principle of operation of a generator 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 in a suspended state for a long time, can be considered, which ensures the elimination of the focus ignition.

Tripping temperature-sensitive device (t1) (5) (may be provided with power supply and control module - not shown) and/or smoke detector (d2) (17) (with or without control and power system) according to FIG. 1 and FIG. 3, which are responsible for generating a signal to turn off the automatic phase switch in the event of a fire in the electrical panel.

Further, as shown in FIG. 1 and FIG. 3, an initiating temperature sensing device (t2) (8) is housed in the housing. The properties of the initiating temperature sensing device (t2) (8) are chosen in such a way that its operation is ensured after the activation temperature of the tripping temperature sensing device (t1) (5) or the smoke detector (d2) (17) installed next to it is triggered. For example, the response temperature of the tripping temperature-sensitive device (t1) (5) can be selected in a discrete range (for example, 60°C, 70°C, 80°C) depending on the conditions of the device placement, and the response temperature of the initiating temperature-sensitive device (t2) (8) can be selected in a range (for example, 90°C, 100°C, 110°C). The initiating temperature sensing device (t2) (8) can additionally be equipped with an electrical power supply and control module (not shown). The smoke detector (d2) (17) can be connected to the tripping temperature sensing device (t1) (5) in parallel or in series, or not at all, depending on the task. Also, in the GOA module (12), together with an electric igniter (9), a thermal igniter (22) is built in, capable of starting the GOA module (12) on its own when the response temperature is reached.

The proposed device according to the second embodiment works as follows.

In the normal state of Fig. 1, fig. 3 phase terminals of phases “A”, “B”, “C”, (14-14’) are connected to the automatic disconnection mechanism (1, 15, 16). Thus, the flow of electric current is ensured along the circuit: Terminal (14) - Conductor - Automatic opening mechanism (1) - Conductor - Terminal (14'), Terminal (14) - Conductor - Automatic opening mechanism (15) - Conductor - Terminal ( 14'), Terminal (14) - Conductor - Automatic opening mechanism (16) - Conductor - Terminal (14'). Also, the neutral terminal (13) is connected to the neutral wire N, ensuring the operability of the power electrical cabinet. At the same time as indicated, the input terminal (14 phases “A”) and the input terminal (13 “neutral wire” N) are connected through the corresponding control conductors to the initiating temperature-sensitive device (t2) (8), the disconnecting temperature-sensitive device (t1) (5) and /or a smoke detector (d2) (17) and an electric igniter GOA (9) according to FIG. 1 and FIG. 3. At the same time, the disconnecting temperature-sensitive device (t1) (5) is connected with one of its outputs through the control conductor to the output terminal of phase “A” (14'), and with the second output through the control conductor with the input terminal (13 “neutral wire” N): Output terminal (14') phase “A” - Thermal cut-off device (t1) (5) - Input terminal (13 “neutral” wire N).

When the temperature rises in the electrical panel (electric panel fire) in which the device is installed to a predetermined critical value determined by the properties of the tripping temperature-sensitive device (t1) (5), (with or without a power supply and control system) (for example, 60 ° C , 70°C, 80°C), heated air enters the body (3) of the device through the hole (6), due to which the tripping temperature-sensitive device (t1) (5) is triggered, which leads to the disconnection of the automatic phase switch “A”, "B", "C". Exactly the same disconnection of phases “A”, “B”, “C” will occur if the smoke detector (d2) (17) is triggered

If the fire continues to develop with the power off of devices connected after the power circuit breaker (power circuit breaker) with a fire extinguishing aerosol generator, and a further increase in temperature, the initiating temperature-sensitive device (t2) (8) is triggered, as a result of which the electric current briefly begins to flow through the circuit: Input terminal (14) - Conductor - GOA electric igniter (9) - Initiating temperature sensing device (t2) (8) - Tripping temperature sensing device (t1) (5) - Conductor - Input terminal (13), thereby ensuring a short-term flow of electric current , capable of starting the GOA electric igniter (9) and initiating the operation of the GOA module (12). After initiation of the GOA electric igniter (9), it opens the circuit Input terminal (14) - Conductor - GOA electric igniter (9) - Initiating temperature-sensitive device (t2) (8) - Tripping temperature-sensitive device (t1) (5) - Conductor - Input terminal (13).

At the start of operation of the GOA module (12) from the housing (3) through the outlet holes (7) according to Fig. 1 and FIG. 3, the fire-extinguishing aerosol starts to come out 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.

Thus, upon operation of the tripping temperature sensing device (t1) (5) and/or the smoke detector (d2) (17) and the initiating temperature sensing device (t2) (8), according to FIG. 1 and FIG. 3, during the ignition of the electrical cabinet, the cabinet is simultaneously extinguished using the GOA module (12) and the phases “A”, “B”, “C” (1, 15, 16) are opened along the line of phase terminals (14-14') according to fig. 1, fig. 3, which can also be attributed to the advantage of the proposed device in comparison with the solutions known from the prior art.

A feature of this device is also that in the event of failure of the operation of the initiating device (t1) (5) or electric igniter (9) or loss of input voltage, the GOA module will still be started using a thermal igniter (22) (Fig. 1), taking into account the fact that the response temperature of the thermal igniter is higher than the response temperature of the initiating device (t1) (5), and, for example, may be 170°C.

It is also important to note that the device contains an input contact group (18) that allows, when a signal is applied to it, to carry out a forced start of the electric igniter (9) using an external device. It is important to note that this contact group also has an inverse function - when several power circuit breakers or power circuit breakers expansion modules are connected in a line to increase the protected volume, when one of the initiating temperature-sensitive devices (t1) (5) and / or a smoke detector is triggered (d2) (17) in any of the devices, the other connected devices will receive an input trigger signal and will be forced to start along with the triggered device.

Also, the power circuit breaker has a GOA trip sensor (21), which, in turn, sends a signal through the conductors (20) to the contact group (19) for processing the received signal by external control automation.

A distinctive feature of the device is also the ability to turn off the power part of the electrical panel in the event of a short circuit or a long-term excess load of the power line without initiating the GOA module (12) with the possibility of subsequent cocking of the power automatic switch (power machine) to its original state using the mechanism (4) and continue operation devices.

Thus, only through the joint use of the above means and their operation through these connections, it is possible to achieve the technical result to which the proposed device is directed.

Claims (8)

1. Power circuit breaker with a fire extinguishing aerosol generator (GOA), containing power electrical terminals located in the housing for connecting phase wires, an electric terminal for connecting a neutral wire, a fire extinguishing aerosol generator module (GOA), an electric GOA igniter, a thermal igniter, an initiating thermosensitive device ( t1) and a disconnecting temperature-sensitive device (t2), moreover, the phase terminals are connected to each other through an automatic phase disconnection mechanism, the phase terminal, which is phase A, and the neutral N terminal, through the control conductors of the GOA electric igniter, are connected to the initiating temperature-sensitive device (t1) and the electric igniter GOA connected to the GOA module, as well as through conductors connected to the contact group for external start of the electric igniter and the GOA module, the disconnecting temperature-sensitive device (t2) is located in the immediate vicinity of the GOA module and connected to the cut conductors with a mechanism for automatic phase shutdown, holes for aerosol outlet are made in the lower part of the body, and the response temperature of the initiating thermally sensitive device (t1) is less than the response temperature of the thermally sensitive disconnecting device (t2), the thermal igniter present in the device is able to start the GOA module without starting the electric igniter , and the response temperature of the thermal igniter is higher than the response temperature of the initiating temperature-sensitive device (t1). 2. The device according to claim. 1, characterized in that it additionally contains a smoke sensor connected by conductors to the initiating temperature-sensitive device (t1) in series or in parallel. 3. The device according to claim 2, characterized in that the smoke detector contains a control and power module. 4. The device according to claim. 1, characterized in that it additionally contains a GOA module actuation sensor connected by conductors to a contact group for generating a GOA module actuation signal for external devices. 5. A circuit breaker with a fire extinguishing aerosol generator (GOA), containing power electrical terminals placed in the housing for connecting phase wires, an electric terminal for connecting a neutral wire, a fire extinguishing aerosol generator module (GOA), an electric GOA igniter, an initiating temperature-sensitive device (t2), a thermally sensitive disconnecting device (t1) connected to it in series, wherein the phase terminals are interconnected through an automatic phase disconnection mechanism, the phase terminal, which is phase A, and the zero N terminal, through the control conductors of the GOA electric igniter, are connected to the initiating thermally sensitive device (t2), and also connected through conductors to the contact group for external start of the electric igniter and the GOA module, the disconnecting temperature-sensitive device (t1) and the GOA electric igniter connected to the GOA module, the disconnecting temperature-sensitive device (t1) is connected to the cut conductors with a mechanism for automatic phase shutdown, openings are made in the lower part of the body for the exit of the aerosol, and the response temperature of the shutdown temperature-sensitive device (t1) is less than the response temperature of the initiating temperature-sensitive device (t2), the thermal igniter present in the device is able to start the GOA module without starting the electric igniter , and the response temperature of the thermal igniter is higher than the response temperature of the initiating temperature-sensitive device (t2). 6. The device according to claim 5, characterized in that it additionally contains a smoke sensor connected by conductors to the initiating temperature-sensitive device (t2) in series or in parallel. 7. The device according to claim 6, characterized in that the smoke detector contains a control and power module. 8. The device according to claim 5, characterized in that it additionally contains a GOA module actuation sensor connected by conductors to a contact group for generating a GOA module actuation signal for external devices.

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