CN207965116U - A kind of field test equipment of fault electric arc detector - Google Patents
A kind of field test equipment of fault electric arc detector Download PDFInfo
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- CN207965116U CN207965116U CN201820268185.8U CN201820268185U CN207965116U CN 207965116 U CN207965116 U CN 207965116U CN 201820268185 U CN201820268185 U CN 201820268185U CN 207965116 U CN207965116 U CN 207965116U
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Abstract
The utility model belongs to electrical detection field, more particularly to a kind of field test equipment of fault electric arc detector, including AC/DC switch units, simulated failure arc generator, fault electric arc quantity controller, MCU microprocessors, display control panel, resistive load, MOSFET power devices drive control device, external load socket, power input socket, breaker, sampled current transformer and relay.The utility model may be implemented to be tested fault alarm experiment, the malfunction of fault electric arc detector, resistive load is tested and the pilot projects such as inhibition load test, and the function of effectively controlling simulated failure electric arc quantity during the test is realized, provide good solution for the product testing work of electric fireproof production enterprise, research and development and inspection body.
Description
Technical field
The utility model belongs to electrical detection technique field, and in particular to a kind of field test of fault electric arc detector is set
It is standby.
Background technology
In recent years, Civil Electric Work fire incident in China's takes place frequently, according to 2014《China fire yearbook》To 2007~2013
The fire statistics in year China, electrical fire account for sum occurs for fire 30.21%, account for the first place of all kinds of fire occurrence causes, and
In the occurrence cause of electrical fire, fault electric arc is main cause calamity reason.
Nowadays oneself causes the developed countries such as the attention of every country, especially America and Europe to the seriousness of fault electric arc class fire,
International Electrotechnical Commission has issued IEC 62606 within 2013：2013《Electric arc fault protection electric appliance (AFDD) generally requires》,
Specification has been carried out to this technology in terms of international standard.In recent years, studies in China mechanism and production firm have also begun to failure
The research and development of arc detector, while GB 50116-2013 have been enacted and enforced successively《Design of automatic fire alarm system
Specification》、 GB14287.4《The 4th part of electric fire monitoring system：Fault electric arc detector》With GB/T 31143-2014《Electricity
The general requirement of arc error protection electric appliance (AFDD)》, indicate that China's breakdown arc prevention technology development has striden into the new stage.
Currently, China has worked out the Protection Product of various faults electric arc and has applied the fault electric arc detection in architectural electricity
In, play obvious action to reduce China's architectural electricity fire incident.With China's fault electric arc detector
It promotes the use of on a large scale, there is an urgent need to a kind of inspection equipment of energy field test fault electric arc detector validity.
Invention content
For the above technical problems, the utility model proposes a kind of field tests of fault electric arc detector to set
It is standby.
A kind of field test equipment of fault electric arc detector, including：AC/DC switch units (1), simulated failure electric arc hair
Raw device (2), fault electric arc quantity controller (3), MCU microprocessors (4), display control panel (5), resistive load (6),
MOSFET power devices drive control device (7), external load socket (8), power input socket (9), breaker (10), sampling electricity
Current transformer (11) and relay (12)；
The power input socket (9), breaker (10), fault electric arc quantity controller (3), simulated failure electric arc occur
Device (2), sampled current transformer (11) and relay (12) are sequentially connected, and form test loop；
The power input socket (9) connect with the output end of fault electric arc detector (13) to be measured；
The breaker (10) connect with AC/DC switch units (1)；
The AC/DC switch units difference (1) connect with MCU microprocessors (4) and display control panel, and powers；
The relay (12) is separately connected resistive load (6) and external load socket (8), is failure to actuate in relay (12)
When, resistive load (6) is accessed into test loop；
The external load socket (8) is for connecting external inhibition load；
The MCU microprocessors (4) respectively with fault electric arc quantity controller (3), simulated failure arc generator (2),
Display control panel (5) and MOSFET power devices drive control device (7) connection；
The MOSFET power devices drive control device (7) connect with fault electric arc quantity controller (3).
The simulated failure arc generator (2) includes：Firm banking (14), stationary electrode (15), float electrode (16),
Rolling guide (17), sliding shoe (18), dielectric holder (19) and stepper motor (20)；
Wherein, the breaker (10) connect with stationary electrode (15) and float electrode (16) respectively；The stationary electrode
(15) it is connect with current transformer (11), the stationary electrode (15) is fixed on firm banking (14) by dielectric holder (19)
On；The float electrode (16) is connect by relay (12) with resistive load (6) or external load socket (8), float electrode
(16) it is fixed on sliding shoe (18) by dielectric holder (19)；The sliding shoe (18) is mounted on rolling guide (17)；Institute
Rolling guide (17) is stated on firm banking (14)；The stepper motor (20) is mounted on firm banking (14), described
Stepper motor (20) connects and drives rolling guide (17).
The stationary electrode (15) is the replaceable carbon-point of a diameter of 6mm, and the float electrode (16) is copper rod.
The display control panel (5) includes sequentially connected touch display and RS485 serial communication units.
The fault electric arc quantity controller (3) includes：It is pressed between ac voltage signal acquisition magnification processing (21), arc
Signal acquisition magnification processing (22), current signal acquisition magnification processing (23) and electronic switch unit (24)；
Wherein, ac voltage signal acquisition magnification processing (21) respectively with breaker (10) and MCU microprocessors
Device (4) connects；Between the arc press signal acquisition magnification processing (22) respectively with simulated failure arc generator (2) and MCU
Microprocessor (4) connects；Current signal acquisition magnification processing (23) respectively with sampled current transformer 11 and MCU
Microprocessor (4) connects；The electronic switch unit (24) respectively with MOSFET power devices drive control device (7) and relay
(12) it connects.
The ac voltage signal acquires magnification processing (21)：First damping resistance, the second damping resistance,
One current mode transformer, the first operational amplifier and second operational amplifier；
Wherein, first damping resistance, the second damping resistance, the first current mode transformer, the first operational amplifier and
Second operational amplifier is sequentially connected, and first damping resistance is connected with breaker (10), first operational amplifier and
Second operational amplifier is connect with MCU microprocessors (4) respectively.
Pressure signal acquisition magnification processing (22) includes between the arc：Third damping resistance, the 4th damping resistance, second
Current mode transformer and third operational amplifier；
Wherein, the third damping resistance, the 4th damping resistance, the second current mode transformer and third operational amplifier according to
Secondary to be connected, the third damping resistance is connect with simulated failure arc generator (2), and the third operational amplifier and MCU are micro-
Processor (4) connects.
The current signal acquires magnification processing (23)：Four-operational amplifier and comparator；
The four-operational amplifier and comparator are connected with each other, four-operational amplifier and sampled current transformer (11)
Connection, comparator are connect with sampled current transformer (11) and MCU microprocessors (4) respectively.
The electronic switch unit (24) includes MOSFET power device groups；
The MOSFET power devices group includes 12 MOSFET power devices of parallel connection；MOSFET power device groups pass through
The interface of relay (12) is connected with resistive load (6) or the load of external inhibition, MOSFET power devices group and MOSFET work(
Rate device drive controller (7) connects.
The beneficial effects of the utility model：
The utility model proposes a kind of field test equipment of fault electric arc detector, may be implemented to detect fault electric arc
Fault alarm experiment, the malfunction of device are tested, the pilot projects such as resistive load experiment and inhibition load test, and are realized
The function of effective control simulated failure electric arc quantity during experiment, and then meet specified in GB14287.4 to failure electricity
The requirement of arc detector basic function testing equipment；Compared with prior art, the fault electric arc type that the utility model can simulate
It is complete, there is good man-machine interface, high degree of automation is easy to use, easy care, and compatibility is consistent with test result
Property strong feature, provide good solution for the product testing work of electric fireproof production enterprise, research and development and inspection body
Certainly scheme.
The utility model is designed reasonably, it is easy to accomplish, there is good practical value.
Description of the drawings
Fig. 1 is that fault electric arc detector and the connection of field test equipment described in specific embodiment of the present invention are shown
It is intended to；
Fig. 2 is the field test device structure signal of fault electric arc detector described in specific embodiment of the present invention
Figure；
Fig. 3 is the structural schematic diagram of simulated failure arc generator described in specific embodiment of the present invention；
Fig. 4 is the circuit original that ac voltage signal described in specific embodiment of the present invention acquires magnification processing
Reason figure；
Fig. 5 is the schematic circuit of pressure signal acquisition process unit between arc described in specific embodiment of the present invention；
Fig. 6 is the line principle that current signal acquires magnification processing described in specific embodiment of the present invention
Figure；
Fig. 7 is the schematic circuit of electronic switch unit described in specific embodiment of the present invention；
Fig. 8 is the line of MOSFET power devices drive control device and relay described in specific embodiment of the present invention
Road schematic diagram；
Wherein, 1-AC/DC switch units, 2- simulated failures arc generator, 3- fault electric arcs quantity controller, 4-MCU
Microprocessor, 5- display control panels, 6- resistive loads, 7-MOSFET power devices drive control device, 8- external loads socket,
9- power input sockets, 10- breakers, 11- current transformers, 12- relays, 13- fault electric arc detector to be measured, 14- are solid
Determine pedestal, 15- stationary electrodes, 16- float electrodes, 17- rolling guides, 18- sliding shoes, 19- dielectric holders, 20- stepper motors,
21- ac voltage signals acquire pressure signal acquisition magnification processing between magnification processing, 22- arcs, the acquisition of 23- current signals
Magnification processing, 24- electronic switch units.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
The utility model is further elaborated in example.It should be appreciated that specific embodiment described herein is only used to
It explains the utility model, is not used to limit the utility model.
As shown in Figure 1, fault electric arc detector 13 to be measured is installed in user terminal distribution line.
As shown in Fig. 2, the utility model provides a kind of field test equipment of fault electric arc detector, including AC/DC is opened
Close unit 1, simulated failure arc generator 2, fault electric arc quantity controller 3, MCU microprocessors 4, display control panel 5, resistance
Property load 6, MOSFET power devices drive control device 7, external load socket 8, power input socket 9, breaker 10, electric current it is mutual
Sensor 11 and relay 12.
The power input socket 9, fault electric arc quantity controller 3, simulated failure arc generator 2, takes breaker 10
Sample current transformer 11 and relay 12 are sequentially connected, and form test loop.
The power input socket 9 is connect with the output end of fault electric arc detector 13 to be measured.
Voltage signal terminal P1 is carried on the breaker 10, breaker 10 is connect with AC/DC switch units 1；
The AC/DC switch units 1 are 3W Switching Power Supplies, are connect simultaneously with MCU microprocessors 4 and display control panel respectively
5V DC power supplies are provided.
The sampled current transformer 11 is used to acquire the current signal of test loop, and to current signal carry out decaying and
Shaping.
The relay 12 is separately connected resistive load 6 and external load socket 8, when relay 12 is failure to actuate, will hinder
Property load 6 access test loops.
The external load socket 8 is for connecting external inhibition load；The external inhibition load, can be according to difference
Testing requirements are replaced.
The MCU microprocessors 4 are controlled with fault electric arc quantity controller 3, simulated failure arc generator 2, display respectively
Panel 5 and MOSFET power devices drive control device 7 processed connects.
The display control panel 5 includes sequentially connected touch display and RS485 serial communication units；RS485 goes here and there
Port communications unit includes the transceiver and port device of surge protector of SN65HVD82 models, for realizing MCU microprocessors 4 with
The information exchange of touch display.
The MOSFET power devices drive control device 7 is connect with fault electric arc quantity controller 3.
As shown in figure 3, the simulated failure arc generator 2 is for generating simulated failure electric arc, including firm banking 14,
Stationary electrode 15, float electrode 16, rolling guide 17, sliding shoe 18, dielectric holder 19 and stepper motor 20；The breaker 10
It is connect respectively with stationary electrode 15 and float electrode 16；Simulated failure electric arc is generated between stationary electrode 15 and fixed electrode；Institute
It states simulated failure arc generator 2 and carries voltage signal terminal P2, connect, can be carried with stationary electrode 15 and float electrode 16 respectively
For the simulated failure arc voltage signal between stationary electrode 15 and float electrode 16；The stationary electrode 15 and current transformer
11 connections, stationary electrode 15 is the replaceable carbon-point of a diameter of 6mm, is fixed on firm banking 14 by dielectric holder 19；
The float electrode 16 is connect by relay 12 with resistive load 6 or external load socket 8, and float electrode 16 is copper rod and leads to
Dielectric holder 19 is crossed to be fixed on sliding shoe 18；The sliding shoe 18 is mounted on rolling guide 17；The rolling guide 17 is pacified
On firm banking 14；The stepper motor 20 is mounted on firm banking 14, and stepper motor 20 connects and rolling is driven to lead
Rail 17；The stepping angle that stepper motor 20 is controlled by MCU microprocessors 4, to control between stationary electrode 15 and fixed electrode
Away from, and then control the voltage strength of simulated failure electric arc.
The fault electric arc quantity controller 3 includes pressing signal between ac voltage signal acquisition magnification processing 21, arc
Acquire magnification processing 22, current signal acquisition magnification processing 23 and electronic switch unit 24.
As shown in figure 4, the ac voltage signal acquires the voltage signal with breaker 10 respectively of magnification processing 21
Terminals P 1 and MCU microprocessors 4 connect；Ac voltage signal acquisition magnification processing 21 includes that first be sequentially connected declines
Reduced resistance R1 and the second damping resistance R2, the first current mode transformer T1, the first operational amplifier U1A and second operational amplifier
U1B；Wherein the first damping resistance R1 is connect with the voltage signal terminal P1 of breaker 10, the first operational amplifier U1A and second
Operational amplifier U1B is connect with MCU microprocessors 4 respectively.
The experiment power supply voltage signal of the voltage signal terminal P1 passes through the first damping resistance R1 and the second damping resistance
R2 decays, and signal carries out shaping by the first current mode transformer T1, then passes through the first operational amplifier U1A and second
Operational amplifier U1B is amplified and filters, and is then delivered to the interface AC-V and AC-Z of MCU microprocessors 4 respectively, to realize
Detection of the MCU microprocessors 4 to experiment power supply voltage signal.
As shown in figure 5, pressed between the arc signal acquisition magnification processing 22 respectively with simulated failure arc generator 2
Voltage signal terminal P2 and MCU microprocessor 4 connect；It includes third decaying electricity that signal acquisition magnification processing 22 is pressed between arc
Hinder R9, the 4th damping resistance R10, the second current mode transformer T2 and third operational amplifier U2；Wherein, the third decaying electricity
Resistance R9, the 4th damping resistance R10, the second current mode transformer T2 and third operational amplifier U2 are sequentially connected, third decaying electricity
Resistance R9 is connect with the voltage signal terminal P2 of simulated failure arc generator 2, third operational amplifier U2 and MCU microprocessors 4
Connection；
The simulated failure arc voltage signal that the voltage signal terminal P2 of the simulated failure arc generator 2 is provided passes through
Third damping resistance R9 and the 4th damping resistance R10 decay, and signal carries out shaping by the second current mode transformer T2, so
It is amplified and filters by third operational amplifier U2 afterwards, be then sent to the interface AC-V of MCU microprocessors 4, to realize
Detection of the MCU microprocessors 4 to simulated failure arc voltage signal.
As shown in fig. 6, the current signal acquisition magnification processing 23 is micro- with sampled current transformer 11 and MCU respectively
Processor 4 connects；It includes the four-operational amplifier U3 and comparator interconnected that current signal, which acquires magnification processing 23,
F1；Wherein, the four-operational amplifier U3 and comparator F1 is connected with each other, four-operational amplifier U3 and sampling current mutual inductance
Device 11 connects, and comparator F1 is connect with sampled current transformer 11 and MCU microprocessors 4 respectively；
Sampled current transformer 11 provides test loop current signal by CT1-A and CT1-B interfaces, which passes through the
Four-operational amplifier U3 is amplified and filters, and then exports to the ADC digital-to-analogue conversion interfaces of MCU microprocessors 4, to realize
Detection of the MCU microprocessors 4 to experiment power supply voltage signal；Comparator F1 carries out the peak value of test loop current signal simultaneously
It measures, when detecting that there are the failures such as short circuit in test loop, MCU microprocessors 4 pass through MOSFET power devices drive control device 7
Electronic switch unit 24 is turned off, to cut off test loop, realizes and the short circuit overcurrent of test loop is protected.
As shown in fig. 7, the electronic switch unit 24 respectively with MOSFET power devices drive control device 7 and relay 12
Connection.The electronic switch unit 24 includes MOSFET power device groups；The MOSFET power devices group includes in parallel
12 MOSFET power devices QA1-QA6 and QB1-QB6；The L1-A and L1-B that MOSFET power devices group passes through relay 12
Interface is connected with resistive load 6 or the load of external inhibition, the electronics that MOSFET power devices group passes through electronic switch unit 24
Switch terminal P3 is connect with MOSFET power devices drive control device 7.
As shown in figure 8, the MOSFET power devices drive control device 7 is connect with MCU microprocessors 4；The micro- places MCU
Reason device 4 controls turning on and off for electronic switch unit 24 by MOSFET power devices drive control device 7, to realize to examination
Turning on and off for circuit is tested, and then realizes the control to the quantity of simulated failure electric arc, control process can reach Microsecond grade, make
MCU microprocessors 4 can accurately control the quantity of simulated failure electric arc；
The MOSFET power devices drive control device 7 uses the power device driving chip of 2ED020I12 models.
MCU microprocessors 4 select test load by controlling relay 12；If using resistive load 6 as test
Load, then carry out resistive load experiment；If external inhibition load is negative as test using being connect with external load socket 8
It carries, then carries out inhibition load test；Resistive load is tested and inhibition load test is to fault electric arc detector 13 to be measured
Performance Rule of judgment is identical.
Using the field test equipment of above-mentioned fault electric arc detector, control method is：
Step 1, power input socket 9 is connect with the output end of fault electric arc detector 13 to be measured；If inhibited
Property load test, then external inhibition is loaded and is connect with external load socket 8.
Step 2, testing requirements are inputted into display control panel 5, MCU microprocessors 4 is sent to by display control panel 5；
Testing requirements include test load selection requirement, simulated failure electric arc and voltage strength requires and simulated failure electric arc quantity is wanted
It asks.
Step 3, MCU microprocessors 4 select that control relay 12 is required to select test load according to test load；If adopted
It uses resistive load 6 as test load, then carries out resistive load experiment；If connecting external suppression using with external load socket 8
Property load processed is used as test load, then carries out inhibition load test；
Step 4, it obtains and remembers in real time by the voltage signal acquisition magnification processing 14 of fault electric arc quantity controller 3
Record experiment power supply voltage signal；By pressing signal acquisition magnification processing 22 between the arc of fault electric arc quantity controller 3 in real time
The voltage signal for obtaining and recording simulated failure electric arc passes through sampled current transformer 11 and fault electric arc quantity controller 3
Current signal acquisition magnification processing 23 obtains and records in real time the current signal of test loop, is transmitted to MCU microprocessors
4, and shown by display control panel 5.
Step 5, F1 pairs of the comparator of magnification processing 23 is acquired by the current signal of fault electric arc quantity controller 3
The peak value of test loop current signal measures, and when detecting that there is short trouble in test loop, is sent out to MCU microprocessors 4
Send fault-signal；MCU microprocessors 4 turn off electronic switch unit 24 by MOSFET power devices drive control device 7, to cut
Disconnected test loop is realized and is protected to the short circuit overcurrent of test loop.
Step 6, MCU microprocessors 4 control simulated failure arc generator 2 and generate simulated failure electric arc, and pass through control
The stepping angle of the stepper motor 20 of simulated failure arc generator 2, to control the spacing of stationary electrode 15 and float electrode 16,
And then the voltage strength of simulated failure electric arc is controlled, until it meets the voltage strength requirement of simulated failure electric arc.
Step 7, MCU microprocessors 4 record interior satisfaction per second by the drive control device 7 of MOSFET power devices and simulate event
Hinder the simulated failure electric arc quantity that the voltage strength of electric arc requires, is then controlled by the drive control device 7 of MOSFET power devices
The electronic switch unit 24 of fault electric arc quantity controller 3 processed is switched on and off, and then is controlled and met simulated failure electric arc
The simulated failure electric arc quantity that voltage strength requires, until it meets simulated failure electric arc quantitative requirement.
In step 2, when the simulated failure electric arc quantitative requirement meets the alarm of fault electric arc detector 13 to be measured
It is required that when, that is, realize the fault alarm experiment to fault electric arc detector 13 to be measured；When the simulated failure electric arc quantity is wanted
When seeking the simulated failure electric arc quantity less than fault electric arc detector 13 to be measured alarm requirement, that is, realize to fault electric arc detector
Malfunction be tested.
After above method is detected fault electric arc detector 13 to be measured, if fault electric arc detector 13 to be measured
It is acted according to its design standard, then it represents that it is qualified；If fault electric arc detector 13 to be measured is not marked according to its design
Standard is acted, then unqualified.
The utility model proposes the field test equipment of fault electric arc detector may be implemented to fault electric arc detector
Fault alarm experiment, malfunction be tested, resistive load experiment and the pilot projects such as inhibition load test, and realize and trying
The function of effective control simulated failure electric arc quantity during testing, and then meet specified in GB14287.4 to fault electric arc
The requirement of detector basic function testing equipment；Compared with prior art, the fault electric arc type that the utility model can simulate is neat
Entirely, there is good man-machine interface, high degree of automation is easy to use, easy care, compatibility and test result consistency
Strong feature provides good solution for the product testing work of electric fireproof production enterprise, research and development and inspection body
Scheme.
Claims (9)
1. a kind of field test equipment of fault electric arc detector, which is characterized in that including：AC/DC switch units (1), simulation
It is fault electric arc generator (2), fault electric arc quantity controller (3), MCU microprocessors (4), display control panel (5), resistive negative
Carry (6), MOSFET power devices drive control device (7), external load socket (8), power input socket (9), breaker (10),
Sampled current transformer (11) and relay (12)；
The power input socket (9), breaker (10), fault electric arc quantity controller (3), simulated failure arc generator
(2), sampled current transformer (11) and relay (12) are sequentially connected, and form test loop；
The power input socket (9) connect with the output end of fault electric arc detector (13) to be measured；
The breaker (10) connect with AC/DC switch units (1)；
The AC/DC switch units (1) connect with MCU microprocessors (4) and display control panel respectively, and power；
The relay (12) is separately connected resistive load (6) and external load socket (8), when relay (12) is failure to actuate,
Resistive load (6) is accessed into test loop；
The external load socket (8) is for connecting external inhibition load；
The MCU microprocessors (4) respectively with fault electric arc quantity controller (3), simulated failure arc generator (2), display
Control panel (5) and MOSFET power devices drive control device (7) connection；
The MOSFET power devices drive control device (7) connect with fault electric arc quantity controller (3).
2. the field test equipment of fault electric arc detector according to claim 1, which is characterized in that the simulated failure
Arc generator (2) includes：Firm banking (14), stationary electrode (15), float electrode (16), rolling guide (17), sliding shoe
(18), dielectric holder (19) and stepper motor (20)；
Wherein, the breaker (10) connect with stationary electrode (15) and float electrode (16) respectively；The stationary electrode (15)
It is connect with current transformer (11), the stationary electrode (15) is fixed on by dielectric holder (19) on firm banking (14)；Institute
It states float electrode (16) to connect with resistive load (6) or external load socket (8) by relay (12), float electrode (16) is logical
Dielectric holder (19) is crossed to be fixed on sliding shoe (18)；The sliding shoe (18) is mounted on rolling guide (17)；The rolling
Guide rail (17) is mounted on firm banking (14)；The stepper motor (20) is mounted on firm banking (14), the stepping electricity
Machine (20) connects and drives rolling guide (17).
3. the field test equipment of fault electric arc detector according to claim 2, which is characterized in that the stationary electrode
(15) the replaceable carbon-point for being a diameter of 6mm, the float electrode (16) are copper rod.
4. the field test equipment of fault electric arc detector according to claim 1, which is characterized in that the display control
Panel (5) includes sequentially connected touch display and RS485 serial communication units.
5. the field test equipment of fault electric arc detector according to claim 1, which is characterized in that the fault electric arc
Quantity controller (3) includes：Ac voltage signal, which acquires, presses signal acquisition magnification processing between magnification processing (21), arc
(22), current signal acquisition magnification processing (23) and electronic switch unit (24)；
Wherein, ac voltage signal acquisition magnification processing (21) respectively with breaker (10) and MCU microprocessors (4)
Connection；Between the arc press signal acquisition magnification processing (22) respectively with simulated failure arc generator (2) and MCU microprocessors
Device (4) connects；Current signal acquisition magnification processing (23) respectively with sampled current transformer 11 and MCU microprocessors
(4) it connects；The electronic switch unit (24) connects with MOSFET power devices drive control device (7) and relay (12) respectively
It connects.
6. the field test equipment of fault electric arc detector according to claim 5, which is characterized in that the alternating voltage
Signal acquisition magnification processing (21) includes：First damping resistance, the second damping resistance, the first current mode transformer, first
Operational amplifier and second operational amplifier；
Wherein, first damping resistance, the second damping resistance, the first current mode transformer, the first operational amplifier and second
Operational amplifier is sequentially connected, and first damping resistance is connected with breaker (10), first operational amplifier and second
Operational amplifier is connect with MCU microprocessors (4) respectively.
7. the field test equipment of fault electric arc detector according to claim 5, which is characterized in that press letter between the arc
Number acquisition magnification processing (22) include：Third damping resistance, the 4th damping resistance, the second current mode transformer and third fortune
Calculate amplifier；
Wherein, the third damping resistance, the 4th damping resistance, the second current mode transformer and third operational amplifier phase successively
Even, the third damping resistance is connect with simulated failure arc generator (2), the third operational amplifier and MCU microprocessors
Device (4) connects.
8. the field test equipment of fault electric arc detector according to claim 5, which is characterized in that the electric current letter
Number acquisition magnification processing (23) include：Four-operational amplifier and comparator；
The four-operational amplifier and comparator are connected with each other, and four-operational amplifier connects with sampled current transformer (11)
It connects, comparator is connect with sampled current transformer (11) and MCU microprocessors (4) respectively.
9. the field test equipment of fault electric arc detector according to claim 5, which is characterized in that the electronic cutting
It includes MOSFET power device groups to close unit (24)；
The MOSFET power devices group includes 12 MOSFET power devices of parallel connection；MOSFET power device groups pass through relay
The interface of device (12) is connected with resistive load (6) or the load of external inhibition, MOSFET power devices group and MOSFET power devices
Part drive control device (7) connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201820268185.8U CN207965116U (en) | 2018-02-25 | 2018-02-25 | A kind of field test equipment of fault electric arc detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820268185.8U CN207965116U (en) | 2018-02-25 | 2018-02-25 | A kind of field test equipment of fault electric arc detector |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108152774A (en) * | 2018-02-25 | 2018-06-12 | 公安部沈阳消防研究所 | The field test equipment and its control method of a kind of fault electric arc detector |
| CN109212284A (en) * | 2018-11-21 | 2019-01-15 | 华侨大学 | A kind of arc fault generating system and control method accurately controlled |
| CN109239561A (en) * | 2018-11-29 | 2019-01-18 | 宁波习羽智能科技有限公司 | Slave, host and detector for split type fault electric arc detector |
-
2018
- 2018-02-25 CN CN201820268185.8U patent/CN207965116U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108152774A (en) * | 2018-02-25 | 2018-06-12 | 公安部沈阳消防研究所 | The field test equipment and its control method of a kind of fault electric arc detector |
| CN108152774B (en) * | 2018-02-25 | 2023-12-26 | 应急管理部沈阳消防研究所 | On-site inspection equipment of fault arc detector and control method thereof |
| CN109212284A (en) * | 2018-11-21 | 2019-01-15 | 华侨大学 | A kind of arc fault generating system and control method accurately controlled |
| CN109239561A (en) * | 2018-11-29 | 2019-01-18 | 宁波习羽智能科技有限公司 | Slave, host and detector for split type fault electric arc detector |
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Address after: 110034 No. 218-20, Wen Da Road, Huanggu District, Shenyang, Liaoning. Patentee after: Shenyang Institute of Fire Protection, Ministry of Emergency Management Address before: 110034 No. 218-20, Wen Da Road, Huanggu District, Shenyang, Liaoning. Patentee before: Shenyang Fire-Extiquishing Inst., Public Security Ministry |