KR102557316B1 - Remote management system of nonflammable power board by solar energy - Google Patents

Abstract

The present invention relates to a switchboard/distribution box remote management system for power provided to solar energy, and to presenting non-combustible components and contents that can be applied or attached to a surface of a non-combustible panel so that the switchboard is safe from fire.

Description

Remote management system of nonflammable power board by solar energy}

The present invention relates to a switchboard/distribution box remote management system for power provided to solar energy, and to presenting non-combustible components and contents that can be applied or attached to a surface of a non-combustible panel so that the switchboard is safe from fire.

In general, industrial facilities such as factories use three-phase AC power, so large power is required. A switchboard is provided to reduce an AC voltage of tens of thousands of V supplied from a power plant through a transmission line to an AC voltage of several thousand V through a transformer, and supply the reduced AC voltage to each facility in the factory.

In each switchboard, in order to supply high voltage and large current to facilities in each plant, each facility and switchboard are usually connected with a bus-bar, and the AC voltage reduced in the switchboard is supplied to the facilities through the bus-bar.

On the other hand, switchboards are defenseless against theft and electrical accidents due to the economic downturn. In particular, in order to promote the efficiency and stability of power use these days when power consumption is rapidly increasing, it is necessary to monitor the situation of switchboards.

Recently, the flow of power has been monitored using a power monitoring system (HMI SYSTEM), but this is not only expensive equipment, but also requires a lot of management personnel. In particular, it is not easy for water supply and private companies to introduce this system.

The above technical field is applied to electricity supply by solar energy, and in particular, a switchboard may be vulnerable to fire.

The present invention has been created to solve the above-described problems, and provides a remote management system for switchboards that can manage the switchboards more efficiently and significantly lower safety accident rates including power outages due to a management server that is connected to an interface PC through a network, controls the opening and closing of low and high voltage devices in the switchboards, including load switchgear, sets standards for abnormal trips in the switchboards, and provides a management program that can request images taken by the camera unit at the request of a client PC. to do for that purpose.

In addition, the composition / content of a non-combustible panel that can be attached or a non-flammable liquid that can be applied so that the switchboard / switchboard is not easily affected by internal / external fire, and the purpose is to attach or apply to the switchboard / switchboard.

The present invention for achieving the above object is a measurement unit installed on the incoming line of the switchboard and measuring power, voltage, etc. supplied to the incoming line; a display unit for displaying power and voltage values measured by the measuring unit; A switchboard including an interface PLC for controlling the display unit so that the power and voltage values measured by the measurement unit are displayed on the display unit; a camera unit that photographs and monitors the inside and outside of the switchboard; an interface PC that receives signals output from the temperature sensing unit and the camera unit and is connected to the interface PLC through Ethernet; a remote switchboard that is connected to the interface PC through a network, controls opening and closing of low and high voltage devices in the switchboard, including load switchgear, sets criteria for abnormal trips in the switchboard, and provides a management program capable of requesting an image captured by the camera unit upon request from a client PC; a control unit for controlling the low and high voltage devices including the load switch installed in the switchboard according to the standard set values set in the setting unit; an alarm list unit notifying whether an abnormal trip has occurred in the switchboard; an event list unit outputting control states of low and high voltage devices including load switches installed in the switchboard and measured values measured by the measurement unit; a trend unit that graphically outputs the measurement value measured by the measurement unit; a report unit outputting the control status of the low and high voltage devices including the load switch outputted by the event list unit and the measured values measured by the measuring unit and the measured values graphically output by the trend unit to Excel; It is preferable to include; a cam unit requesting a photographed image of the camera unit.

In addition, it is preferable to include an SMS transmission unit for transmitting the abnormal trip situation generated in the switchboard to the manager's terminal.

Furthermore, it is preferable to include a door detecting unit for detecting open and closed states of a front door provided in front of the switchboard.

In addition, it is preferable to provide a power system diagram showing a flow state of power supplied to the lead-in line of the switchboard.

In addition, the incombustible panel or incombustible liquid according to the present invention, based on 100 parts by weight of the fiber used as a reinforcing material,

With respect to 100 parts by weight of the fiber used as a reinforcing material,

60 to 70 parts by weight of resin;

30 to 50 parts by weight of a carbonization agent containing pentaerythritol,

20 to 30 parts by weight of any one foaming agent selected from Azodicarbonamide and DinitrosoPentamethylenetetramine,

40 to 50 parts by weight of an acid catalyst containing ammonia polyphosphate (APP),

40 to 50 parts by weight of a flame retardant containing antimony trioxide and chlorinated paraffin;

60 to 70 parts by weight of a flame retardant filler containing aluminum hydroxide,

4 to 7 parts by weight of an antifoaming agent and

4 to 7 parts by weight of a dispersant containing an unsaturated polycarboxylic acid series is included.

According to the present invention, a management server that is connected to an interface PC through a network, controls the opening and closing of low and high-voltage devices in the switchboard, including load switchgear, sets standards for abnormal trips in the switchboard, and provides a management program that can request a video captured by the camera unit at the request of the client PC. Thus, the switchboard can be managed more efficiently, and safety accident rates including power outages can be remarkably reduced.

In particular, since the management program includes a setting unit, a control unit, an alarm list unit, an event list unit, a trend unit, a report unit, and a cam unit, a manager can manage the switchboard more efficiently.

In addition, an SMS transmission unit that transmits the abnormal trip situation occurring in the switchboard to the manager's terminal enables the administrator to grasp the abnormal trip situation occurring in the switchboard at a glance through the terminal.

In addition, a manager can more easily check the open and closed state of the front door through a door detection unit that detects the open and closed state of the front door provided in front of the switchboard, and thus, theft of the switchboard can be prevented more efficiently.

Furthermore, due to the power system diagram showing the flow state of power supplied to the incoming line of the switchboard, a manager can more easily grasp the flow state of power at a glance.

In addition, according to the present invention, after adding a composition such as a flame retardant, a carbonizer, a foaming agent, an acid catalyst, a flame retardant filler, an antifoamer, a dispersant, etc. to the resin, which is a composite material, with respect to the viscosity-adjusted resin, the impregnated liquid is applied to the fiber for reinforcement, and a fiber-reinforced non-combustible panel is manufactured by compression molding using a press with a predetermined pressure, and the non-combustible panel thus prepared is attached to or applied to electrical devices including a switchboard (distribution box) It has an excellent effect of protecting against fire.

1 is a configuration diagram for implementing a remote switchboard management system, which is an embodiment of the present invention;
2 is a block diagram schematically showing a management program installed in a client PC;
3 is a flowchart schematically showing a state in which the remote switchboard management system manages the switchboard;
Figure 4 is a schematic diagram showing an energy system by sunlight to which the present invention is applied

Hereinafter, some embodiments of the present invention will be described in detail through exemplary drawings. In adding reference numerals to components of each drawing, it should be noted that the same components have the same numerals as much as possible even if they are displayed on different drawings. In addition, in describing the embodiments of the present invention, detailed descriptions of substantially the same content will be omitted.

In addition, when a component is described as being "connected", "coupled", or "contacted" to another component, the component may be directly connected or connected to the other component, but it should be understood as the same technical concept even if another component is "connected", "coupled" or "contacted" between each component.

In addition, when it is described that a certain component is provided, formed, or constituted, it should be interpreted in substantially the same meaning unless specifically defined.

In addition, in the present invention, the meaning of including may indicate that other components may be substituted in addition to the general meaning of the open type that other components may additionally be included, so it should be determined based on the content.

In the present invention, the non-combustible material is a concept including semi-non-combustible materials, flame retardant materials, and the like.

In the present invention, a switchboard has the same meaning as a switchboard/distribution box, and includes internal and/or external components of the switchboard/distribution box.

In the present invention, fiber-reinforced non-flammable panels, reinforced fiber non-combustible panels or fiber-reinforced non-combustible panels are interpreted in the same meaning.

The technical idea of the present invention is also applicable to a solar power system or a general power system.

Hereinafter, embodiments of the present invention will be described by citing each drawing.

First, FIG. 4 is a schematic diagram showing an energy system by sunlight to which the present invention is applied.

1 is a configuration diagram for implementing a remote switchboard management system according to an embodiment of the present invention.

As shown in FIG. 1, a remote switchboard management system according to an embodiment of the present invention includes a measurement unit 10, a display unit 20, an interface PLC 30, a temperature sensor 40, a camera unit 50, an interface PC 60, and a management server 70.

The measuring unit 10 is installed on the incoming line of the switchboard 5 and measures power, voltage, phase, power, amount of energy, power factor, harmonics, zero-phase voltage, reactive power, etc. supplied to the incoming line, and the display unit 20 displays the power, voltage, phase, power, amount of power, power factor, harmonics, zero-phase voltage, reactive power, etc. measured by the measuring unit 10. By controlling the display unit 20 so that the power, voltage, phase, power, amount of energy, power factor, harmonics, video voltage, reactive power, etc. measured by (10) can be displayed on the display unit 20, this is a well-known technology and can be understood and implemented by those skilled in the art to which the present invention belongs, and thus detailed descriptions thereof will be omitted.

Meanwhile, the temperature sensing unit 40 senses the temperature of the bus bar and the load switch installed in the switchboard 5, and outputs the detected signal to the interface PC 60.

Next, the camera unit 50 is to photograph and monitor the inside and outside of the switchboard 5, and outputs the photographed image to the interface PC 60.

[0023] The camera unit 50 includes, for example, a first camera unit provided inside the switchboard 5 and photographing the state of low and high voltage equipment including a load switch installed inside the switchboard 5; A second camera unit installed outside the switchboard 5 to be located at a distance adjacent to the switchboard 5 and taking pictures of the switchboard 5;

Next, the interface PC 60 is connected to the interface PLC 30 via Ethernet, and receives signals output from the temperature sensing unit 40 and the camera unit 50 and outputs signals output by the temperature sensing unit 40 and the camera unit 50 to the management server 70.

Next, the management server 70 is connected to the interface PC 60 through a network, and controls the opening and closing of the low and high voltage devices of the switchboard 5, including the load switchgear, sets the criteria for abnormal trips of the switchboard 5, and provides the management program 81 capable of requesting a captured image of the camera unit 50 at the request of the client PC 80.

More specifically, the management program 81 provided by the management server 70 is installed in the client PC 80 .

A manager who manages the switchboard 5 can access the management server through the network, such as the Internet, by inputting an ID and a password into the management program 81, for example.

2 is a block diagram schematically showing the management program 81 installed in the client PC 80, and FIG. 3 is a flowchart schematically showing a state in which the remote switchboard management system manages the switchboard 5.

Here, the management program 81, as shown in FIG. 2, includes a setting unit 810 for setting abnormal trip occurrence criteria of the switchboard 5; a control unit 811 that controls low and high voltage devices including load switches installed in the switchboard 5 according to the standard set values set in the setting unit 810; an alarm list unit 812 notifying the switchboard 5 of whether an abnormal trip has occurred; an event list unit 813 outputting control states of low and high voltage devices including load switches installed in the switchboard 5 and measured values measured by the measurement unit 10; a trend unit 814 that graphically outputs the measurement value measured by the measurement unit 10; A report unit 815 that outputs the control status of low and high-voltage equipment including load switchgear output by the event list unit 813 and the measured values measured by the measuring unit 10 and the measured values graphically output by the trend unit 814; It may include; a cam unit 816 requesting a photographed image of the camera unit 50.

The control unit 811 outputs an operation signal of a low -pressure device including a load swelling waste installed in the switchboard 5, and the client PC receives a signal output by the control unit 811 and is output to the management server 70, and the management server 70 is the client PC (80). According to the signal of the output, the operation of the low -pressure device, including the load swelling machine installed in the switchboard 5, is controlled on and off.

In addition, the administrator can input reference temperature values, power, voltage, phase, power, amount of energy, power factor, harmonics, zero-phase voltage, and reactive power to the client PC 80 through the setting unit 810 of the management program 81 installed in the client PC 80.

The reference temperature value and the reference measurement value input to the client PC 80 are output to the management server 70, and the management server 70 compares the reference temperature value and the reference measurement value output by the client PC 80 with the temperature value detected by the temperature sensor 40 and the measurement value measured by the measurement unit 10, respectively, so that the temperature value detected by the temperature sensor 40 and the measurement value measured by the measurement unit 10 are the reference temperature value and the reference measurement value. If it exceeds, it is determined that an abnormal trip has occurred in the switchboard 5.

When the management server 70 determines that an abnormal trip has occurred in the switchboard 5, the alarm list unit 812 notifies the administrator of the switchboard 5 of the abnormal trip by generating an alarm sound such as a bell through an alarm member such as a speaker built into the client PC 80, for example.

At the same time, the management server 70 controls the operation of low and high-voltage equipment including the load switchgear installed on the switchboard 5, in particular, the load switchgear can cut off the power supplied to the switchgear 5.

On the other hand, the event list unit 813 displays the ON and OFF states of the low and high voltage equipment including the load switchgear installed in the switchboard 5 on the monitor of the client PC 80 by date, year, and day, and at the same time outputs the measured values measured by the measurement unit 10, that is, power, voltage, phase, power, amount of energy, power factor, harmonics, zero-phase voltage, and reactive power values, etc. to the monitor of the client PC 80.

In addition, the trend unit 814 outputs the measurement values measured by the measurement unit 10 through the monitor of the client PC 80 as graphics such as bars and curve graphs.

In addition, the report unit 815 outputs the control status of the low and high voltage equipment including the load switchgear output by the event list unit 813, i.e., the ON and OFF states, the measured values measured by the measuring unit 10, and the measured values graphically output by the trend unit 814.

Also, the captured image of the camera unit 50 requested by the cam unit 816 is output through the monitor of the client PC 80 .

Since the management program 81 includes a setting unit 810, a control unit 811, an alarm list unit 812, an event list unit 813, a trend unit 814, a report unit 815, and a cam unit 816, there is an advantage in that the manager who manages the switchboard 5 can manage the switchboard 5 more efficiently.

Next, an SMS transmission unit 71 may be further provided to transmit a short message message about the abnormal trip situation occurring in the switchboard 5 to the administrator's terminal.

The SMS transmission unit 71, provided in the management server 70 for example, can transmit a short message message to terminals including a manager's mobile phone and PDA of an abnormal trip situation occurring in the switchboard 5 through the network.

Due to the SMS transmission unit 71 that transmits a short message about the abnormal trip situation occurring in the switchboard 5 to the manager's terminal, the manager can grasp the abnormal trip situation occurring in the switchboard 5 at a glance through the terminal.

Next, a door detecting unit 90 for detecting open and closed states of the front door provided in front of the switchboard 5 may be further provided.

The door detection unit 90 detects the open and closed state of the front door and outputs the signal to the management server 70. At this time, the SMS transmission unit 71 can transmit the open and closed state of the front door of the switchboard 5 to the manager's terminal through the network.

Through the door detection unit 90 that detects the open and closed states of the front door provided in front of the switchboard 5, the manager can more easily check the open and closed states of the front door, and this has the advantage of being able to more effectively prevent theft of the switchboard 5.

Next, although not shown in the drawing, a power system diagram showing a flow state of power supplied to the incoming line of the switchboard 5 may be further provided.

The power system diagram may be displayed on the screen as graphics such as bars and curves through the display unit 20 .

In addition, the power system diagram includes, for example, a three-dimensional acrylic plate attached to the front door; A plurality of LEDs provided on the three-dimensional acrylic plate at regular intervals and blinked by the management server 70 to indicate the flow state of power; may be made, but are not necessarily limited thereto.

Due to the power system diagram showing the flow state of power supplied to the incoming line of the switchboard 5, the manager who manages the switchboard 5 can more easily grasp the flow state of power at a glance.

The present invention configured as described above is connected to the interface PC 60 through a network, controls the opening and closing of the low and high voltage devices of the switchboard 5 including the load switchgear, sets standards for abnormal trips of the switchboard 5, and provides the management program 81 capable of requesting an image taken by the camera unit 50 at the request of the client PC 80, so that the switchboard 5 can be managed more efficiently. Of course, this has the advantage of significantly lowering the safety accident rate, especially including power failure.

4 is an example of an energy system by sunlight to which the present invention is applied, and the technical concept of the present invention is also applied to a distribution board/distribution board of general power supply.

On the other hand, since a fire may occur in the above system, especially in the switchboard (box)/distribution board (box), the following is proposed for protection from fire.

As an example of a composite material, the resin used in the present invention is not limited to a thermosetting resin and may also include a thermoplastic resin.

Hereinafter, a composition for manufacturing a fiber-reinforced non-combustible panel (not shown) including incombustibility as a panel used for fire prevention of the present invention is as follows.

The manufacturing method may be possible by various general methods other than the simple method presented in the present invention.

With respect to the viscosity-controlled resin, a composition such as a flame retardant, a carbonizer, a foaming agent, an acid catalyst, a flame retardant filler, an antifoamer, a dispersant, etc. is added to the resin, which is a composite material, and then the impregnated liquid is applied to the fiber for reinforcement, and a fiber-reinforced non-combustible panel is manufactured by compression molding using a press with a predetermined pressure, and the non-combustible panel manufactured in this way is attached or applied to electrical devices (distribution boards, distribution boards, etc.) there is

Incombustible components and contents for sticking or coating on the surface of the switchboard / switchboard are based on 100 parts by weight of fibers used as reinforcing materials,

60 to 70 parts by weight of resin;

30 to 50 parts by weight of a carbonization agent containing pentaerythritol,

20 to 30 parts by weight of any one foaming agent selected from Azodicarbonamide and DinitrosoPentamethylenetetramine;

40 to 50 parts by weight of an acid catalyst containing ammonia polyphosphate (APP),

40 to 50 parts by weight of a flame retardant containing antimony trioxide and chlorinated paraffin;

60 to 70 parts by weight of a flame retardant filler containing aluminum hydroxide,

4 to 7 parts by weight of an antifoaming agent and

4 to 7 parts by weight of a dispersant containing an unsaturated polycarboxylic acid series is included,

It is manufactured by a known general method with a predetermined thickness,

As the flame retardant resin, any one selected from the group consisting of an addition-type flame retardant unsaturated polyester resin, a bisphenol-type vinyl ester resin having an unsaturated polyester group at the end of a brominated epoxy resin, and an epoxy resin is used,

The carbonizing agent includes pentaerythritol,

The foaming agent uses any one selected from Azodicarbonamide and DinitrosoPentamethylenetetramine,

The acid catalyst includes ammonium polyphosphate (APP),

The flame retardant is mixed with antimony trioxide and chlorinated paraffin,

The filler is applied including aluminum hydroxide,

The dispersant uses an unsaturated polycarboxylic acid series.

The resin is a flame retardant resin, wherein any one selected from the group consisting of an addition-type flame retardant unsaturated polyester resin having a viscosity adjusted to 2000 to 3000 cp at room temperature, a bisphenol-type vinyl ester resin having an unsaturated polyester group at the end of a brominated epoxy resin, and an epoxy resin is used,

The carbonizing agent is pentaerythritol having a size of 60 to 80 μm,

The foaming agent uses any one selected from Azodicarbonamide and DinitrosoPentamethylenetetramine having a size of 400 to 500 mesh,

The acid catalyst includes ammonium polyphosphate (APP),

The flame retardant is 250 to 350 parts by weight of chlorinated paraffin based on 100 parts by weight of antimony trioxide,

As the filler, aluminum hydroxide having a size of 450 to 550 mesh is applied,

The dispersant uses any one selected from BYK-W940 and BYK-W995, products of BYK, which are based on unsaturated polycarboxylic acids,

The fiber is used for reinforcement and is any one of plain weave or twill weave glass fabric, Kevlar fabric, roving cloth fiber, glass fiber, Kevlar fiber and carbon fiber.

The nonflammable panel manufactured by the above compositions is characterized in that it has a thickness of 1 to 1.5 mm.

The critical meaning according to the content and numerical value of each composition is as follows.

In general, in 60 to 70 parts by weight of a flame retardant resin whose viscosity is adjusted to 2000 to 3000 cp at room temperature, if the viscosity of the flame retardant resin is less than 2000 cp, the amount of diluent added increases to adversely affect the physical properties of the semi-non-combustible panel.

If the flame retardant resin is less than 60 parts by weight, the absolute amount of the resin impregnated into the reinforcing material is insufficient, making complete impregnation difficult, and if it exceeds 70 parts by weight, the semi-incombustible performance decreases as the amount of the resin increases.

In the above 30 to 50 parts by weight of the carbonization agent having a size of 60 to 80 μm,

When the carbonizing agent comes into contact with a heat source, it reacts with the acid catalyst to form a carbide, and serves to form a thermal barrier through the carbide. If the amount of the carbonization agent is less than 30 parts by weight, the reaction with the acid catalyst is poor, making it difficult to form a carbonized layer.

In addition, when the size of the carbonization agent is less than 60 μm, the reaction with the acid catalyst is easy due to the increase in the surface area of the carbonization agent, but it is uneconomical compared to the effect, and when the size exceeds 80 μm, the reaction with the acid catalyst does not proceed smoothly due to the decrease in the surface area of the carbonization agent.

In addition, in 20 to 30 parts by weight of a foaming agent having a size of 425 mesh,

The foaming agent is thermally decomposed at a predetermined decomposition temperature to release an inert gas to foam the carbonized layer of the panel to continuously maintain the insulation performance. If the amount of the foaming agent is less than 20 parts by weight, the amount of gas generated may not be formed to the required level, and if it exceeds 30 parts by weight, it is rather difficult to form a carbonized layer due to an excessive amount of gas generated. Difficulty in maintaining required fire resistance performance.

In addition, in 40 to 50 parts by weight of the acid catalyst,

When Ammonium Polyphosphate (APP), an acid catalyst, is heated, phosphoric acid is formed, which participates in the dehydrogenation reaction of carbon compounds used as physical barriers. When the amount of the acid catalyst used is less than 40 parts by weight, the reaction with the carbonizing agent and the foaming agent is weak, so there is a risk that an appropriate amount of the carbonized layer may not be generated.

In addition, in 40 to 50 parts by weight of the flame retardant,

When the amount of the flame retardant is less than 40 parts by weight, the content of antimony trioxide is less than 5 parts by weight, and antimony trioxide is insufficient to cause a synergistic effect of chlorinated paraffin and flame retardancy, and when it exceeds 50 parts by weight, a large amount of chlorine gas is generated.

In addition, in 60 to 70 parts by weight of the flame retardant filler,

Since aluminum hydroxide has a very small amount of smoke when burned in a noncombustible panel, it serves not only as a good flame retardant in terms of environment, but also as a filler for improving physical properties such as hardness and compressive strength of the noncombustible panel. When the content of the flame retardant filler is less than 60 parts by weight, the flame retardant effect is significantly lowered, and when it exceeds 70 parts by weight, the viscosity due to the increase in the filler is also increased, resulting in poor workability.

Further, in 4 to 7 parts by weight of the antifoaming agent,

The antifoaming agent serves to eliminate the generation of air bubbles generated from each mixed composition. If it is less than 4 parts by weight, it is difficult to remove the bubbles generated, and if it exceeds 7 parts by weight, bubbles generated from the mixed composition can be completely removed, but the effect is weak compared to the amount used.

In addition, in a non-combustible panel made of a constant thickness of 1 to 1.5 mm by containing 4 to 7 parts by weight of a dispersant,

The dispersant improves the wettability of the mixed composition and controls the viscosity range of each composition, thereby increasing the input amount of each composition to improve incombustibility.

If the amount of the dispersant is less than 4 parts by weight, there is a concern that each composition to be mixed may not be completely dispersed, and if it exceeds 7 parts by weight, each composition to be mixed can be evenly dispersed, but the effect is insignificant compared to the amount used.

Components or contents not mentioned above are not particularly described because they are generally used in the industry.

In addition, if the panel thickness is less than 1mm, it is not easy to attach to the distribution box, and if it exceeds 1.5mm, the effect is insignificant because it exceeds the design value that is generally required to be nonflammable.

In applying 250 to 350 parts by weight of chlorinated paraffin with respect to 100 parts by weight of antimony trioxide, the flame retardant is a good method from an environmental point of view because the amount of fuming during combustion is small when it is less than 250 parts by weight, but the flame retardant effect may be lowered.

Additionally, the incombustible panel or coating solution is based on 100 parts by weight of fiber

3 to 5 parts by weight of fly ash, 1 to 3 parts by weight of phenolic resin, 3 to 5 parts by weight of particulate perlite as an incombustible curing agent, 1-2 parts by weight of acrylic oligomer, 2-3 parts by weight of alkoxy silane (≡SiOR), 2-3 parts by weight of ethylene-vinyl acetate emulsion, 0.5 to 2 parts by weight of ammonia, 1-2 parts by weight of calcium hydroxide, 1-2 parts by weight of magnesium hydroxide 3-5 parts by weight of magnesium carbonate, 3-6 parts by weight of expandable graphite, 1-3 parts by weight of white kerosene, 1-2 parts by weight of silicon dioxide (SiO₂), 2-4 parts by weight of aluminum oxide (AI₂O₃).

The above description is merely an example of the technical idea of the present invention, and various modifications and variations can be made to those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed according to the following claims, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

10; measurement unit, 20; display unit,
30; PLC for interface, 40; temperature sensor,
50; camera unit, 60; PC for interface,
70; management server

Claims (2)

A measuring unit 10 installed on the incoming line of the switchboard 5 and measuring power, voltage, phase, power, amount of energy, power factor, harmonics, zero-phase voltage, and reactive power supplied to the incoming line; a display unit 20 that displays power, voltage, phase, power, amount of energy, power factor, harmonics, zero-phase voltage, and reactive power measured by the measuring unit 10; An interface PLC (30) for controlling the display unit (20) so that the power, voltage, phase, power, amount of energy, power factor, harmonics, zero-phase voltage, and reactive power measured by the measuring unit (10) can be displayed on the display unit (20). In a switchboard comprising:

Incombustible components and contents for sticking or coating on the surface of the switchboard
With respect to 100 parts by weight of the fiber used as a reinforcing material,
60-70 parts by weight of resin;
30-50 parts by weight of a carbonization agent containing pentaerythritol,
20-30 parts by weight of azodicarbonamide foaming agent,
40-50 parts by weight of an acid catalyst containing ammonium polyphosphate (APP),
40-50 parts by weight of a flame retardant containing antimony trioxide and chlorinated paraffin;
60 to 70 parts by weight of a flame retardant filler containing aluminum hydroxide,
4-7 parts by weight of antifoam and
4-7 parts by weight of a dispersant containing an unsaturated polycarboxylic acid series is included,
It is manufactured by a known general method with a predetermined thickness,
The resin uses an addition-type unsaturated polyester resin for flame retardancy as a flame retardant resin,
The carbonizing agent includes pentaerythritol,
The blowing agent uses azodicarbonamide,
The acid catalyst includes ammonium polyphosphate (APP),
The flame retardant is mixed with antimony trioxide and chlorinated paraffin,
The filler is applied including aluminum hydroxide,
The dispersant uses an unsaturated polycarboxylic acid series,
The resin is a flame retardant resin, and an addition-type flame retardant unsaturated polyester resin having a viscosity at room temperature adjusted to 2000 to 3000 cp is used,
The carbonizing agent is pentaerythritol having a size of 60 to 80 μm,
The foaming agent uses azodicarbonamide having a size of 400 to 500 mesh,
The acid catalyst includes ammonium polyphosphate (APP),
The flame retardant is 250-350 parts by weight of chlorinated paraffin based on 100 parts by weight of antimony trioxide,
As the filler, aluminum hydroxide having a size of 450 to 550 mesh is applied,
The dispersant uses any one selected from BYK-W940 and BYK-W995, products of BYK, which are based on unsaturated polycarboxylic acids,
The fiber is used for reinforcement and is any one of plain weave or twill weave glass fabric, Kevlar fabric, roving cloth fiber, glass fiber, Kevlar fiber and carbon fiber,
The incombustible panel manufactured by the above compositions has a thickness of 1 to 1.5 mm,

Additionally, the incombustible panel or coating solution is based on 100 parts by weight of fiber
3-5 parts by weight of fly ash, 1-3 parts by weight of phenolic resin, 3-5 parts by weight of particulate perlite as an incombustible curing agent, 1-2 parts by weight of acrylic oligomer, 2-3 parts by weight of alkoxy silane (SiOR), 2-3 parts by weight of ethylene-vinylacetate emulsion, 0.5-2 parts by weight of ammonia, 1-2 parts by weight of calcium hydroxide, 1-2 parts by weight of magnesium hydroxide , 3-5 parts by weight of magnesium carbonate, 3-6 parts by weight of expandable graphite;
also,
1 - 3 parts by weight of white kerosene, 1-2 parts by weight of silicon dioxide (SiO₂), 2-4 parts by weight of aluminum oxide (AI₂O₃); delete