CN109444610A - A set of electrical fire fault simulation and trace preparation facilities - Google Patents
A set of electrical fire fault simulation and trace preparation facilities Download PDFInfo
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- CN109444610A CN109444610A CN201811570167.6A CN201811570167A CN109444610A CN 109444610 A CN109444610 A CN 109444610A CN 201811570167 A CN201811570167 A CN 201811570167A CN 109444610 A CN109444610 A CN 109444610A
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- 238000004088 simulation Methods 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 238000002485 combustion reaction Methods 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims description 53
- 238000002474 experimental method Methods 0.000 claims description 16
- 230000001012 protector Effects 0.000 claims description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 239000000779 smoke Substances 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 239000007858 starting material Substances 0.000 claims description 6
- 230000000977 initiatory effect Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- 238000004886 process control Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 230000006837 decompression Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
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- 229920001342 Bakelite® Polymers 0.000 claims description 2
- 230000003321 amplification Effects 0.000 claims description 2
- 239000004637 bakelite Substances 0.000 claims description 2
- 230000033228 biological regulation Effects 0.000 claims description 2
- 235000019504 cigarettes Nutrition 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 238000011835 investigation Methods 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 abstract description 4
- 230000001681 protective effect Effects 0.000 abstract description 2
- 238000011160 research Methods 0.000 description 8
- 206010037660 Pyrexia Diseases 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 238000012369 In process control Methods 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
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- 238000011161 development Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/003—Environmental or reliability tests
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Abstract
The invention discloses a set of electrical fire fault simulation and trace preparation facilities, it include: surge tank, control cabinet and combustion chamber, the short circuit of analog electric wiring and equipment, hot-spot, owes the Common Electrical Apparatus such as overvoltage at overcurrent, prepare corresponding Fire Trace material evidence, mutually converting between achievable various faults, has reproduced true fault；The high speed measurement that voltage and current can be achieved, has expanded the depth of investigation；Modular numerically controlled operation can be achieved, realize convenient use；The electrodeless adjustment that voltage and current can be achieved, optimizes analogy method；The flexible arrangement that burning scene can be achieved, close to fire reality；Multistage multiple protective can be achieved, ensured safe operation.
Description
Technical field
The present invention relates to electrical fires to investigate field, and in particular to a set of electrical fire fault simulation and trace preparation dress
It sets.
Background technique
Electrical fire is one of the most common type fire incident, accounts for China's fire and always plays several one thirds or so, for
The investigation result of such fire is also one of focus of social concerns, is directly related to the vital interests of masses suffering from disaster.Electrical fire
Calamity point two major classes: one kind is that the failures such as short circuit, overcurrent, electric leakage, poor contact occur for electric wiring, and ignite combustible around,
Caused by fire；Another kind of is that certain reason leads to electrical equipment malfunction, generates the fire of localized hyperthermia or line fault initiation,
Such as: hair dryer resistance heating increases severely, and ignite combustible around, the fire of initiation.According to fire hazard classification SS, the two has sternly
The differentiation of lattice, but it is substantially all the energy conversion between voltage, electric current and resistance between combustible.From the angle of fire investigation
Degree analysis assert that electric fault causes fire, needs to find under electric wiring or equipment heating residual in position on fire at first
Trace its fever process is analyzed by verification of traces, it is comprehensive to assert reason of fire therefore electrical in conjunction with other live evidences
The identification of failure trace is the key evidence of entire electrical fire cause determination.
From the 1970s, foreign scholar has begun to the research of electric fault indication character in fire, also basis
Research needs to have made some failure generating devices, has pushed the development of electric fault trace identification technology in fire investigation.So
And electrical system is complicated, failure mode multiplicity, mutually induces between failure, converts frequently complicated, high temperature of fire destruction in addition, it
Prior fault simulator has been unable to satisfy the needs of scientific research.In order to preferably show that various electric faults cause the mistake of fire
Journey studies various failure fever phenomenons and causes the condition of fire, understand the process that various faults mutually induce, analyzes in fire
The forming process of typical electric fault trace, quantization electric fault energy discharges the influence formed to trace, to deepen trace
The depth and precision of research, it is more acurrate to research and develop measurement, records more complete, simulation more closing to reality, safe and reliable reality
Test equipment.
Currently, similar devices type is less both at home and abroad, existing equipment majority is single failure simulation generator, mainly
Have the disadvantage that deficiency:
(1) it is only capable of simulating single failure, cannot achieve and mutually convert between failure, such as: overcurrent fault, core occur for conducting wire
Fever causes failure of insulation, induces short trouble, this is relatively conventional in practical electrical fire, but equipment can not be simulated before；
(2) be only capable of analog line failure, can not easily analog machine and contact fault, such as: the metope of rated current 10A
Wiring board, when leading to the high current of 20A, it may occur that contact local pyrexia failure, existing equipment can not be installed fast and be simulated repeatedly；
(3) it is mostly used low voltage failure simulation, actual deficient over-voltage fault can not be simulated, such as: electrical appliance occurs owing over-voltage event
Barrier depends primarily on distribution system fault type, and analog machine input voltage needs to be continuously adjusted, and existing equipment is mostly low-voltage
High current equipment, and fire is practical differs farther out；
(4) be only capable of observation fever phenomenon, can not data real-time measurement record, such as: the device of short trouble is simulated, even if outside
The volometer connect can not capture the voltage and current variation of transcient short circuit time, cause research that can not go deep into；
(5) it is only capable of manual operation control, cannot achieve digital moduleization manipulation, there are some potential safety problemss；
(6) it is only capable of simulating single fire source more, fairly large burning can not be carried out, such as: most devices are limited to combustion chamber
Space can not arrange that the combustible of larger load, fire source are mostly the fixed fire source such as used in LPG stove, and inside can not flexible arrangement
Electrical appliance and combustible.
Summary of the invention
To solve the above problems, the present invention provides a set of electrical fire fault simulation and trace preparation facilities.
To achieve the above object, the technical scheme adopted by the invention is as follows:
A set of electrical fire fault simulation and trace preparation facilities, the device incorporate various electric fault occurring principles,
Including adjusting electric cabinet, control cabinet and combustion chamber；
1 power of setting is 80KW in the surge tank, and the pressure regulator that adjustable voltage range is 0 to 450V passes through control
Motor rotating link chain processed drives the sliding of three phase voltage regulating slide plate, realizes the step-less adjustment of voltage, voltage is exported through transformer to control
Cabinet, the housing face-plate of surge tank are equipped with the instrument display for being respectively used to display A, B, C phase surge tank input voltage state；
Digital control implement, built-in clearing device, master control protector, exchange control protector, two are disposed in the control cabinet
A AC220V socket, DC control air switch, two ballast controllers, rectifier, rectifier start button, rectifier stop
Button, rectifier power on buttons, 315 type dc welding machines, JL-500A type AC welding set A, JL-500A type AC welding set B, every
From transformer, smoke evacuation switch, scram button, booster start button, booster stop button, boosting indicator light, N phase booster
Output wiring terminal, C phase booster output wiring terminal, B phase booster output wiring terminal, A phase booster output wiring terminal, outside three-phase
Combination hub, two-phase external socket, surge tank boosting start button, surge tank boosting start indicator lamp, surge tank reduced-voltage starting are pressed
Button, surge tank reduced-voltage starting indicator light, current lifting device start button, current lifting device stop button, current lifting device power on indicator light, mechanical lock
It is spaced apart, surge tank input voltage, surge tank input current, A phase is equipped with above the control cabinet and exchanges input indicator, B intersection
Stream input indicator, C phase exchange input indicator, surge tank output voltage, surge tank output electric current, boost button and do not reset sound
Light instruction, decompression button do not reset Acoustooptic indicator, for showing booster output voltage, the booster of booster working condition
Input current, A phase booster input indicator, B phase booster input indicator, C phase booster input indicator and display；
It is equipped in the combustion chamber:
Connecting column slot A, for connecting overvoltage/undervoltage experiment；
Connecting column slot B is tested for direct-current short circuit and overcurrent, is connect with 315 type dc welding machine output ends；
Connecting column slot C is tested for single phase ac short circuit and overcurrent, is connect with JL-500A type AC welding set A；
Connecting column slot D is tested for line to line fault and overcurrent, connects JL-500A type AC welding set A and JL-500A type
Each one end AC welding set B is connected through load；
The power output terminal of the combustion chamber is that copper bores the connection of column card slot, meets 10mm2Multicore copper conductor external world electric weld handle,
For connecting various conducting wires and electrical appliance；Wall surface wiring pole panel below combustion chamber connects for plain nut, can be without weldering
Being directly connected to various electrical equipments, direct current be arranged altogether, crosses and under-voltage and exchanges three kinds of way of outputs, while being equipped at panel
5 spring hole scoket of 220V and 380V4 spring hole scoket, for connecting electrical equipment by plug；In combustion chamber, it is provided with dismountable wall
Face socket connects box for poor contact failure, according to overcurrent principle, iron shell, and, iron shell is pacified according to wall surface socket
Reload request, carry out interior welds processing, can convenient and quick three hole of installation wall surface and five spring hole scokets, for simulate at socket contact not
Hot-spot caused by good and overcurrent；Indoor top is smoke evacuation system, is connect with main smoke evacuation system, the cigarette that discharge burning generates
Gas is discharged after carrying out purified treatment；Inner Wall of Combustion Chamber two sides interval 30cm has been arranged symmetrically several groups card slot, for disposing load-bearing
Partition, the load-bearing partition are used to carry out the arrangement of electric appliance or route.
Further, surge tank, which is input to control cabinet, the different types of voltage of two-way, electrical for analog DC all the way
Failure, another way are used for the electrical failure of analog AC.
Further, when analog DC electric fault: alternating current is through master control protector, through DC control air switch, by
Built-in digital control implement (containing computer program), rectifier start button, rectifier stop button, rectifier power on buttons are controlled parallel
System can be achieved at the same time numerical control control (common control) and manually control (emergency braking), and 380V electric main, A phase is inputted with B phase
To 315 type dc welding machines, described two ballast controllers, the electric current output control button as 315 type dc welding machines are used
In the DC current output for realizing 40A to 240A, the ballast controller connection indoor connecting column slot B of burning realizes direct current
Short trouble and the simulation of direct current overcurrent fault.
Further, when the electrical failure of analog AC: alternating current accesses pressure regulator, by pressure regulator A through master control protector
In the voltage input to control cabinet that phase, B phase are exported with C phase exchanging control protector, manually control surge tank boosting starting by
Button and surge tank reduced-voltage starting button, digital control implement built in parallel connection, control boosting starter and reduced voltage starter, boost through surge tank
Start indicator lamp and surge tank reduced-voltage starting indicator light show voltage regulator operation state, while showing process control and manually control
System, the needs that A phase, B phase and C phase are simulated according to electric fault, distribution setting as follows:
First is that A phase is input to JL-500A type AC welding set A with B phase for simulating single-phase short circuit, is controlled and adjusted by computer
The motor rotation of depressor adjusts within the scope of A phase and B voltage between phases safe voltage, by JL-500A type AC welding set A current lifting device
Control is external to control panel, is controlled with current lifting device start button and current lifting device stop button, and digital control implement built in downlink connection, uses
In process control JL-500A type AC welding set A, current lifting device is set and powers on indicator light, shows the work of JL-500A type AC welding set A
Make state, to control AC welding set A output in terms of voltage, two, electric current, analog AC single-phase earthing fault and single leads
The overcurrent fault of line, built-in clearing device, pressure regulator voltage is zeroed after single experiment, prevents electric shock accidents；
Second is that the overvoltage/undervoltage for electrical equipment is tested, A phase, B phase and C phase are through isolating transformer, transformation ratio 1:1.5,
Booster start button is arranged in the voltage of exportable alternate peak 660A measured value, leading portion, and two-step evolution protective program is arranged
Setting up password and switch initiation key, non-special messenger can not start, while connect scram button, in special circumstances, promptly making
Dynamic, same to connect booster stop button and built-in clearing device, connection boosting indicator light prompts boosting carrying out, A phase, B
Phase, C phase introduce combustion chamber respectively and correspond to binding post, connect electrical equipment, and external binding post is arranged at control panel, is respectively
A phase booster output wiring terminal, B phase booster output wiring terminal, C phase booster output wiring terminal and the output of N phase booster connect
Terminal and the three-phase external socket of adjustable voltage, two-phase external socket, mainly in the various companies of bulky equipment
It connects, realizes the overvoltage/undervoltage fault simulation of plurality of devices；
Third is that two-phase AC fault is simulated, on the basis of A phase inputs JL-500A type AC welding set A with B phase, by B phase and
C phase inputs L-500A type AC welding set B, and 2 JL-500A type AC welding set output both ends are connect with load resistance, passes through pressure regulation
Device controls the voltage of A phase, B phase and C phase, replaces load resistance interface, adjusts resistance sizes, realizes that two-phase exchanges overcurrent fault
Induce short trouble experiment simulation；
Fourth is that 220V voltage output is arranged two in control panel to be external convenient for follow-up data recording equipment, lighting apparatus
A AC220V socket, is directly connected to A phase and N phase, considers certain extreme conditions, and alternating current 220V direct short-circuit is straight by A phase and N phase
It connects and introduces combustion chamber, front end setting mechanical lock is spaced apart, and encrypted code is protected in program, and layman can not start；
Occurrence condition can be arranged in above-mentioned fault simulation route by program, and voltage and current is arranged in internal wiring corresponding position
High-speed collection card 1.5 × 104Hz, real-time display collection voltages curent change, internal processes record and generate EXCEL document.
Further, the size of the combustion chamber is 1640mm × 1000mm × 2374mm, and the load-bearing partition uses
The non-ignitable bakelite of insulation of 10mm thickness, prevents from leaking electricity.
Further, the adjustable range of one of ballast controller is 40A to 240A, another ballast controller is used
In superimposed current, maximum amplification 40A, to realize the DC current output of 40A to 240A.
The invention has the following advantages:
(1) " a tractor serves several purposes " is realized, electrical circuit fault can have both been simulated and cause fire, electrical equipment can also be simulated
Failure causes fire, so that electrical fire teaching and research work more comprehensive system；
(2) it realizes and converts between failure, both can individually simulate the failures such as short circuit, overcurrent, heating of contact, it can also be with mould
Quasi- overcurrent induces short circuit, short circuit induces overcurrent, overcurrent induces the conversion of the various faults such as heating of contact, convenient for deeply reason
Solve the relationship between electric fault；
(3) it is continuously adjustable to realize pressurization experiment, high-power transformer is set, and alternating voltage continuously may be used within the scope of 0V~660V
It adjusts, can both simulate over-voltage experiment, the also under-voltage experiment of analog both can be with analog DC failure, can also be with analog AC failure；
(4) Modularized digital manipulation is realized, built-in high-performance server, design specialized controls software, in LCD touch
Experiment is manipulated on screen, for different experimental projects, is operated with accommodation function module, not only ensure that safety, but also improve
Conventional efficient；
(5) data high-speed acquisition and recording is realized, built-in 1.5 × 104Hz voltage and current capture card, before and after recording failure
Current Voltage value, the variation of real-time display waveform support EXCEL export, handle convenient for follow-up data, improve the science of research
And preciseness；
(6) flexible setting of burning condition is realized, 1640mm × 1000mm × 2374mm large size combustion chamber is inside set multiple
Board slot, plate face have carried out insulation processing, can be needed that flammable object location is arranged according to experiment, can be by refrigerator, washing machine etc.
Electrical appliance is placed in combustion chamber, carries out equipment fault experiment.
Detailed description of the invention
Fig. 1 is overall appearance figure of the present invention；
Fig. 2 is surge tank internal structure chart；
Fig. 3 is control cabinet internal structure chart and control layout；
Fig. 4 is combustion chamber topology layout figure；
Fig. 5 is combustion chamber internal wiring mode structural map；
Fig. 6 is overall electrical line map.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection scope.
As Figure 1-Figure 5, the embodiment of the invention provides a set of electrical fire fault simulation and trace preparation facilities, should
Device incorporates various electric fault occurring principles, including adjusts electric cabinet 1, control cabinet 2 and combustion chamber 3；
1 power of setting is 80KW in the surge tank 1, and the pressure regulator 4 that adjustable voltage range is 0 to 450V passes through
Controlling 7 rotating link chain 8 of motor drives three phase voltage regulating slide plate 6 to slide, and realizes the step-less adjustment of voltage, voltage is exported through transformer 5
To control cabinet 2, the housing face-plate of surge tank 1 is equipped with the instrument for being respectively used to display A, B, C phase surge tank input voltage state
Display 9,10 and 11；
Digital control implement, built-in clearing device, master control protector 12, exchange control protector are disposed in the control cabinet 2
13, two AC220V sockets 14, DC control air switch 15, ballast controller 16,17, rectifier, rectifier start button
18, rectifier stop button 19, rectifier power on buttons 20,315 type dc welding machines 21, JL-500A type AC welding set A22,
JL-500A type AC welding set B23, isolating transformer 24, smoke evacuation switch 25, scram button 26, booster start button 27, boosting
Device stop button 28, boosting indicator light 29, N phase booster output wiring terminal 30, C phase booster output wiring terminal 31, B phase are boosted
Device output wiring terminal 32, A phase booster output wiring terminal 33, three-phase external socket 34, two-phase external socket 35, surge tank boosting
Start button 36, surge tank boosting start indicator lamp 37, surge tank reduced-voltage starting button 38, surge tank reduced-voltage starting indicator light
39, current lifting device start button 40, current lifting device stop button 41, current lifting device power on indicator light 42, mechanical lock is spaced apart 43, the control
Above cabinet 2 be equipped with surge tank input voltage 44, surge tank input current 45, A phase exchanges input indicator 46, B phase exchanges input
Indicator light 47, C phase exchange input indicator 48, surge tank output voltage 49, surge tank output electric current 50, boost button and do not reset
Acousto-optic instruction 51, decompression button do not reset Acoustooptic indicator 52, for showing the booster output voltage of booster working condition
53, booster input current 54, A phase booster input indicator 55, B phase booster input indicator 56, the input of C phase booster
Indicator light 57 and display 58；
It is equipped in the combustion chamber:
Connecting column slot A58 and 59, for connecting overvoltage/undervoltage experiment；
Connecting column slot B60 and 61 is tested for direct-current short circuit and overcurrent, is connected with 315 type dc welding machine, 21 output end
It connects；
Connecting column slot C62 and 63 is tested for single phase ac short circuit and overcurrent, is connected with JL-500A type AC welding set A22
It connects；
Connecting column slot D64 and 65 is tested for line to line fault and overcurrent, connection JL-500A type AC welding set A22 and
Each one end JL-500A type AC welding set B23, through 70 connection of load；
The power output terminal of the combustion chamber 3 is that copper bores the connection of column card slot, meets 10mm2The electric welding of the multicore copper conductor external world
For connecting various conducting wires and electrical appliance；Wall surface wiring pole panel 71 below combustion chamber connects for plain nut, can not
Through electrode holder, various electrical equipments are directly connected to, direct current, mistake under-voltage are set altogether and exchange three kinds of way of outputs, while at panel
Equipped with 5 spring hole scoket of 220V and 380V4 spring hole scoket, for connecting electrical equipment by plug；In combustion chamber, it is provided with detachable
Wall surface socket, connect box 68 for poor contact failure, according to overcurrent principle, iron shell, iron shell, according to wall surface
Socket installation requirement, carry out interior welds processing, can convenient and quick three hole of installation wall surface and five spring hole scokets, for simulating at socket
Hot-spot caused by poor contact and overcurrent；Indoor top is smoke evacuation system 66, is connect with main smoke evacuation system, discharge burning
The flue gas of generation is discharged after carrying out purified treatment；3 inner wall two sides interval 30cm of combustion chamber has been arranged symmetrically several groups card slot 69,
For disposing load-bearing partition 67, the load-bearing partition 67 is used to carry out the arrangement of electric appliance or route.
In this specific implementation, surge tank 1, which is input to control cabinet 2, the different types of voltage of two-way, straight for simulating all the way
Electric fault is flowed, another way is used for the electrical failure of analog AC；
In analog DC electric fault: alternating current is through master control protector 12, through DC control air switch 15, by built-in
Digital control implement, rectifier start button 18, rectifier stop button 19,20 parallel control of rectifier power on buttons, can be achieved at the same time
Numerical control is controlled and is manually controlled, 380V electric main, and A phase is input to 315 type dc welding machines 21, the ballast control with B phase
Device 16 and 17 exports control button as the electric current of 315 type dc welding machines 21, defeated for realizing the DC current of 40A to 240A
Out, the ballast controller 16 and 17 connects the connecting column slot B60 and 61 in combustion chamber 3, realizes direct-current short circuit failure and direct current
Overcurrent fault simulation；
When the electrical failure of analog AC: alternating current accesses pressure regulator 4 through master control protector 12, by pressure regulator A phase, B phase and
Exchange in the voltage input that C phase exports to control cabinet 2 controls protector 13, manually controls surge tank boosting 36 He of start button
Surge tank reduced-voltage starting button 38, digital control implement built in parallel connection, control boosting starter and reduced voltage starter, are opened through surge tank boosting
Dynamic indicator light 37 and surge tank reduced-voltage starting indicator light 39 show voltage regulator operation state, while showing process control and manually control
System, the needs that A phase, B phase and C phase are simulated according to electric fault, distribution setting as follows:
First is that A phase is input to JL-500A type AC welding set A22 with B phase, passes through digital control implement control for simulating single-phase short circuit
The motor 7 of pressure regulator 4 processed rotates, and A phase and B voltage between phases is adjusted within the scope of safe voltage, by JL-500A type AC welding set
After current lifting device start button 40 and current lifting device stop button 41 in the control terminal and control panel of A22 current lifting device connect, and even
Built-in digital control implement is connected, to realize JL- by current lifting device start button 40, current lifting device stop button 41 and built-in digital control implement
The control of 500A type AC welding set A22 powers on indicator light 42 by the current lifting device of setting and shows JL-500A type AC welding set A22
Working condition, to control AC welding set A output, analog AC single-phase earthing fault and list in terms of voltage, two, electric current
The overcurrent fault of root conducting wire, built-in clearing device, pressure regulator voltage is zeroed after single experiment, prevents electric shock accidents；
Second is that the overvoltage/undervoltage for electrical equipment is tested, A phase, B phase and C phase are through isolating transformer 24, transformation ratio 1:
1.5, booster start button 27 is arranged in the voltage of exportable alternate peak 660A measured value, leading portion, and setting two-step evolution is protected
Program setting up password and switch initiation key are protected, non-special messenger can not start, while connect scram button 26, be used for special circumstances
Under, emergency braking is same to connect booster stop button 28 and built-in clearing device, and connection boosting indicator light 29 prompts boosting
It is carrying out, A phase, B phase, C phase introduces combustion chamber respectively and corresponds to binding post, connects electrical equipment, is arranged at control panel outer
Binding post is connect, is A phase booster output wiring terminal 33, B phase booster output wiring terminal 32, C phase booster output connection respectively
Three-phase external socket 34, the two-phase external socket 35 of column 31 and N phase booster output wiring terminal 30 and adjustable voltage, it is main
The various connections of bulky equipment are directed to, realize the overvoltage/undervoltage fault simulation of plurality of devices；
Third is that two-phase AC fault is simulated, on the basis of A phase inputs JL-500A type AC welding set A22 with B phase, by B phase
JL-500A type AC welding set B23 is inputted with C phase, 2 JL-500A type AC welding set output both ends connect with load resistance 70, lead to
The voltage that pressure regulator 4 controls A phase, B phase and C phase is crossed, 70 interface of load resistance is replaced, adjusts resistance sizes, realizes two-phase exchange
Overcurrent fault induces short trouble experiment simulation；
Fourth is that 220V voltage output will be arranged to be external convenient for follow-up data recording equipment, lighting apparatus on control panel
Two AC220V sockets 14 be directly connected to A phase and N phase, consider certain extreme conditions, alternating current 220V direct short-circuit, by A phase and N
It is mutually introduced directly into combustion chamber, front end setting mechanical lock is spaced apart 43, and encrypted code is protected in program, and layman can not start；
Occurrence condition can be arranged in above-mentioned fault simulation route by program, and voltage and current is arranged in internal wiring corresponding position
High-speed collection card 1.5 × 104Hz, real-time display collection voltages curent change, internal processes record and generate EXCEL document.
This specific implementation realizes the short circuit of single device analog, overcurrent, contact overheat, owes a variety of electric wires such as over-voltage
Road and equipment fault are, it can be achieved that mutual induction conversion between electric fault；Realize the mould of the deficient over-voltage experiment of electrical equipment
Quasi-, the settable 0V~660V of ceiling voltage, maximum power really simulation can prepare electrical appliance in deficient over-voltage up to 80KW
When failure trace.Realize high speed measurement, storage and the real-time display of transient voltage electric current, acquisition speed up to 1.5 ×
104Hz, inside realize that software control, equipment operation realize Modularized digital control；Provided with a variety of connection types, combustion chamber
Interior space is big, and flexible layout is arranged, can be according to ignition condition needs, and the reasonable dosage that combustible is arranged can carry out TV
The fault simulation of the common household electrical appliance such as machine, air-conditioning, refrigerator.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make a variety of changes or modify within the scope of the claims, this not shadow
Ring substantive content of the invention.In the absence of conflict, the feature in embodiments herein and embodiment can any phase
Mutually combination.
Claims (6)
1. a set of electrical fire fault simulation and trace preparation facilities, it is characterised in that: including adjust electric cabinet (1), control cabinet (2) and
Combustion chamber (3)；
1 power of setting is 80KW in the surge tank (1), and the pressure regulator (4) that adjustable voltage range is 0 to 450V passes through
It controls motor (7) rotating link chain (8) and drives three phase voltage regulating slide plate (6) sliding, realize the step-less adjustment of voltage, voltage is through transformer
(5) to control cabinet (2), the housing face-plate of surge tank (1), which is equipped with, is respectively used to display A, B, C phase surge tank input voltage for output
The instrument display (9,10,11) of state；
Digital control implement, built-in clearing device, master control protector (12), exchange control protector are disposed in the control cabinet (2)
(13), two AC220V sockets (14), DC control air switch (15), ballast controller (16,17), rectifier, rectifier
Start button (18), rectifier stop button (19), rectifier power on buttons (20), 315 type dc welding machines (21), JL-
500A type AC welding set A (22), JL-500A type AC welding set B (23), isolating transformer (24), smoke evacuation switch (25), emergency stop are pressed
Button (26), booster start button (27), booster stop button (28), boosting indicator light (29), N phase booster output connection
Column (30), C phase booster output wiring terminal (31), B phase booster output wiring terminal (32), A phase booster output wiring terminal
(33), three-phase external socket (34), two-phase external socket (35), surge tank boosting start button (36), surge tank boosting starting
Indicator light (37), surge tank reduced-voltage starting button (38), surge tank reduced-voltage starting indicator light (39), current lifting device start button
(40), current lifting device stop button (41), current lifting device power on indicator light (42), mechanical lock is spaced apart (43), above the control cabinet (2)
Input indicator (46) is exchanged equipped with surge tank input voltage (44), surge tank input current (45), A phase, B phase exchanges input and refers to
Show that lamp (47), C phase exchange input indicator (48), surge tank output voltage (49), surge tank output electric current (50), boost button
Acousto-optic is not resetted and indicates that (51), decompression button do not reset Acoustooptic indicator (52), for showing the boosting of booster working condition
Device output voltage (53), booster input current (54), A phase booster input indicator (55), B phase booster input indicator
(56), C phase booster input indicator (57) and display (58)；
It is equipped in the combustion chamber:
Connecting column slot A (72,59), for connecting overvoltage/undervoltage experiment；
Connecting column slot B (60,61) is tested for direct-current short circuit and overcurrent, is connected with 315 type dc welding machine (21) output ends
It connects；
Connecting column slot C (62,63) is tested for single phase ac short circuit and overcurrent, even with JL-500A type AC welding set A (22)
It connects；
Connecting column slot D (64,65) is tested for line to line fault and overcurrent, connects JL-500A type AC welding set A (22) and JL-
500A type AC welding set B (23) each one end is loaded (70) connection；
The power output terminal of the combustion chamber (3) is that copper bores the connection of column card slot, meets 10mm2The external electric weld handle of multicore copper conductor is used
In the various conducting wires of connection and electrical appliance；Wall surface wiring pole panel (71) below combustion chamber connects for plain nut, can be without weldering
Being directly connected to various electrical equipments, direct current be arranged altogether, crosses and under-voltage and exchanges three kinds of way of outputs, while being equipped at panel
5 spring hole scoket of 220V and 380V4 spring hole scoket, for connecting electrical equipment by plug；In combustion chamber, it is provided with dismountable wall
Face socket, for poor contact failure connection box (68), according to overcurrent principle, iron shell, according to wall surface socket installation requirement,
Carry out interior welds processing, can convenient and quick three hole of installation wall surface and five spring hole scokets, for simulating poor contact and mistake at socket
Hot-spot caused by electric current；Indoor top is smoke evacuation system (66), is connect with main smoke evacuation system, the cigarette that discharge burning generates
Gas is discharged after carrying out purified treatment；Combustion chamber (3) inner wall two sides interval 30cm has been arranged symmetrically several groups card slot (69), is used for
It disposes load-bearing partition (67), the load-bearing partition (67) is used to carry out the arrangement of electric appliance or route.
2. a set of electrical fire fault simulation as described in claim 1 and trace preparation facilities, it is characterised in that: surge tank
(1) being input to control cabinet (2) has the different types of voltage of two-way, is used for analog DC electric fault all the way, and another way is used for mould
Quasi- alternating-current electric failure.
3. a set of electrical fire fault simulation as claimed in claim 2 and trace preparation facilities, it is characterised in that: analog DC
When electric fault: alternating current is through master control protector (12), through DC control air switch (15), by built-in digital control implement, rectifier
Start button (18), rectifier stop button (19), rectifier power on buttons (20) parallel control, can be achieved at the same time numerical control control
With manually control, 380V electric main, A phase and B phase are input to 315 type dc welding machines (21), the ballast controller (16,
17) control button is exported as the electric current of 315 type dc welding machines (21), is exported for realizing the DC current of 40A to 240A,
Through ballast controller (16,17), dc welding machine (21) are exported into the connecting column slot B in connection combustion chamber (3), realize that direct current is short
Road failure and the simulation of direct current overcurrent fault.
4. a set of electrical fire fault simulation as claimed in claim 2 and trace preparation facilities, it is characterised in that: analog AC
When electric fault: alternating current accesses pressure regulator (4), the electricity that pressure regulator A phase, B phase are exported with C phase through master control protector (12)
Exchange control protector (13) being input in control cabinet (2) is pressed, surge tank boosting start button (36) and pressure regulation are manually controlled
Cabinet reduced-voltage starting button (38), digital control implement built in parallel connection, control boosting starter and reduced voltage starter, boost through surge tank and start
Indicator light (37) and surge tank reduced-voltage starting indicator light (39) show voltage regulator operation state, while showing process control and manually
Control, the needs that A phase, B phase and C phase are simulated according to electric fault, distribution setting as follows:
First is that A phase is input to JL-500A type AC welding set A (22) with B phase for simulating single-phase short circuit, is controlled and adjusted by computer
The motor (7) of depressor (4) rotates, and A phase and B voltage between phases (within the scope of safe voltage) is adjusted, by JL-500A type AC welding set
The control of A (22) current lifting device is external to control panel, is controlled with current lifting device start button (40) and current lifting device stop button (41), and
Connection connects built-in digital control implement, is used for process control JL-500A type AC welding set A (22), and setting current lifting device powers on indicator light (42),
The working condition of JL-500A type AC welding set A (22) is shown, so that it is defeated to control AC welding set A in terms of voltage, two, electric current
Out, the overcurrent fault of analog AC single-phase earthing fault and solid conductor, built-in clearing device, pressure regulator electricity after single experiment
Pressure zero, prevents electric shock accidents；
Second is that the overvoltage/undervoltage for electrical equipment is tested, A phase, B phase and C phase are through isolating transformer (24), transformation ratio 1:1.5,
Booster start button (27) are arranged in the voltage of exportable alternate peak 660V (measured value), leading portion, and setting two-step evolution is protected
Shield (program setting up password and switch initiation key), non-special messenger can not start, while connect scram button (26), be used for special feelings
Under condition, emergency braking is same to connect booster stop button (28) and built-in clearing device, and connection boosting indicator light (29) mentions
Show that boosting is carrying out, A phase, B phase introduce combustion chamber respectively and correspond to binding post, connect electrical equipment, are arranged at control panel
External binding post is that A phase booster output wiring terminal (33), B phase booster output wiring terminal (32), C phase booster are defeated respectively
Out outside binding post (31) and N phase booster output wiring terminal (30) and the three-phase external socket (34) of adjustable voltage, two-phase
Combination hub (35) realizes the overvoltage/undervoltage fault simulation of plurality of devices mainly in the various connections of bulky equipment；
Third is that two-phase AC fault is simulated, on the basis of A phase inputs type AC welding set (22) A JL-500A with B phase, by B phase and
C phase inputs L-500A type AC welding set B (23), and 2 JL-500A type AC welding set output both ends are connect with load resistance (70),
The voltage of A phase, B phase and C phase is controlled by pressure regulator (4), replaces load resistance (70) interface, adjusts resistance sizes, realizes two
Intersection flows through current failure and induces short trouble experiment simulation；
Fourth is that 220V voltage output, to be arranged two in control panel convenient for connecting data recording equipment, external lighting apparatus
AC220V socket (14), is directly connected to A phase and N phase, considers certain extreme conditions, alternating current 220V direct short-circuit, by A phase and N phase
It is introduced directly into combustion chamber, front end setting mechanical lock is spaced apart (43), and encrypted code is protected in program, and layman can not start；
Occurrence condition can be arranged in above-mentioned fault simulation route by program, and voltage and current high speed is arranged in internal wiring corresponding position
Capture card (1.5 × 104Hz), real-time display collection voltages curent change, internal processes record and generate EXCEL document.
5. a set of electrical fire fault simulation as described in claim 1 and trace preparation facilities, it is characterised in that: the burning
The size of room (3) is 1640mm × 1000mm × 2374mm, and the load-bearing partition (67) uses the non-ignitable bakelite of insulation of 10mm thickness,
It prevents from leaking electricity.
6. a set of electrical fire fault simulation as described in claim 1 and trace preparation facilities, it is characterised in that: the ballast
The adjustable range of controller (16) is 40A to 240A, and ballast controller (17) is used for superimposed current, maximum amplification 40A, thus real
The DC current output of existing 40A to 240A.
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| CN201811570167.6A CN109444610B (en) | 2018-12-21 | 2018-12-21 | Electrical fire fault simulation and trace preparation device |
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