CN203929969U - Arc fault detection device - Google Patents
Arc fault detection device Download PDFInfo
- Publication number
- CN203929969U CN203929969U CN201320844719.4U CN201320844719U CN203929969U CN 203929969 U CN203929969 U CN 203929969U CN 201320844719 U CN201320844719 U CN 201320844719U CN 203929969 U CN203929969 U CN 203929969U
- Authority
- CN
- China
- Prior art keywords
- arc
- circuit
- detection
- fault
- detection device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 188
- 238000004891 communication Methods 0.000 claims abstract description 72
- 238000012544 monitoring process Methods 0.000 claims abstract description 56
- 238000010891 electric arc Methods 0.000 claims abstract description 47
- 238000002955 isolation Methods 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 claims description 5
- 238000011990 functional testing Methods 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 230000000007 visual effect Effects 0.000 claims description 4
- 238000012360 testing method Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Abstract
Embodiment of the present utility model provides a kind of arc fault detection device for electric fire monitoring system.This device comprises: fault electric arc detection module, for detection of the fault electric arc of circuit and load; And alarm communication module, for according to the fault electric arc of described detection, the warning that fault is provided with communicate by letter.According to embodiment of the present utility model, the function of this device comprises the various arc faults of surveying its downstream circuit and certain loads, comprise serial arc, electric arc in parallel, ground arc and leak current fault, provide on-the-spot sound and light alarm and by CAN bus communication network, failure message reached to fire monitoring system of far-end etc.
Description
Technical field
Embodiment of the present utility model relates to electric fire disaster monitoring field, more specifically, relates to the arc fault detection field for electric fire disaster monitoring.
Background technology
Electric fire monitoring system, for contingent electrical fire provides pre-alarm in advance, is the important means of preventing electric fire.Electric fire monitoring system is generally divided into three-decker, and the superiors are monitoring host computers, and orlop is various presence detector, and wherein arc fault detector, as the one in presence detector, is an important component part of electric fire monitoring system.Fault electric arc is due to the air breakdown that electric insulation is aging, damaged, there was dampness in the air causes of electric wire etc. or electrical connection is loosening etc., and reason causes.Arc energy is large, and temperature is high, and fault electric arc holds fire hazardous and even explodes, and endangers very large.Therefore the GB GB14287.4, issuing in Dec, 2012 clearly proposes the related request of using electric arc failure detector in electric fire monitoring system.
But current existing electric fire monitoring system cannot provide complete good arc fault detection function.And, voltage network and the loadtype complexity of China, the quality of power supply is not high, and in electrical network, harmonic content is abundant, in circuit, may have various arc faults, and existing arc fault detection device cannot provide good arc fault detection function.Even if independent arc fault detection device can play the effect of arc fault detection to a certain extent, but of poor quality, reliability is low, fault alarm is not real-time, cannot report to the police timely for electric fire monitoring system provides reliably, therefore cannot provide complete arc fault detection function and an electric fire monitoring system of meeting consumers' demand of comprising for user.
Therefore, need a kind of arc fault detection device, can overcome above defect, for user provides the complete electric fire monitoring system that comprises arc fault detection function.
Utility model content
For the defect existing in prior art, embodiment of the present utility model provides a kind of arc fault detection device.This device comprises: fault electric arc detection module, for detection of the fault electric arc of circuit and load; And alarm communication module, for according to the fault electric arc of described detection, the warning that fault is provided with communicate by letter.
According to an embodiment of the present utility model, described fault electric arc detection module comprises: arc detection circuitry, for obtaining the high-frequency signal of described circuit; And arc-detection controller, for receiving the described high-frequency signal from described arc detection circuitry, and acquisition fault judges information.
According to an embodiment of the present utility model, described fault electric arc detection module further comprises: electric-leakage detection circuit, and for the low frequency signal obtaining being outputed to described arc-detection controller.
According to an embodiment of the present utility model, described fault electric arc detection module further comprises: voltage detecting circuit, and synchronous for carrying out zero crossing, and synchronizing signal is outputed to described arc-detection controller.
According to an embodiment of the present utility model, described fault electric arc detection module further comprises: temperature-compensation circuit, for obtaining real time temperature, and outputs to described arc-detection controller by temperature compensation signal.
According to an embodiment of the present utility model, described fault electric arc detection module further comprises: functional test circuit, and for verifying the function of described arc fault detection device.
According to an embodiment of the present utility model, described alarm communication module comprises: data communication controller, and for generation of the warning message of described alarm communication module.
According to an embodiment of the present utility model, described alarm communication module also comprises: electrical isolation unit, and for described alarm communication module and non-security potential circuit are isolated.
According to an embodiment of the present utility model, described alarm communication module further comprises: mailing address arranges circuit, for the mailing address of described arc fault detection device is set; And system communication interface circuit, for according to described mailing address, the described warning message of described data communication controller generation is sent to the monitoring host computer of fire monitoring system.
According to an embodiment of the present utility model, described alarm communication module further comprises: warning indicating circuit, and for the described warning message producing according to described data communication controller, output indicator signal.
According to an embodiment of the present utility model, described warning indicating circuit comprises: optical alarm circuit, and for exporting visual alarm.
According to an embodiment of the present utility model, described warning indicating circuit comprises: audible alarm circuit, and for output sound alerting signal.
According to an embodiment of the present utility model, described warning instruction electricity comprises: dry contact output circuit, and for exporting dry contact signal.
According to an embodiment of the present utility model, described warning indicating circuit comprises: working state indicating circuit, is used to indicate the duty of described arc fault detection device.
According to an embodiment of the present utility model, described alarm communication module further comprises: ann reset circuit, and for exporting ann reset signal to described data communication controller.
The arc fault detection warning device providing according to the utility model embodiment, meets the related request of electric fire monitoring system standard GB14287.4; Design according to China Power Grids and electrical load feature; In cramped construction, realize the functions such as fault electric arc detection, Alarm Communication, the direct power supply of electrical network; Use CAN bus, can initiatively rapidly onsite alarming be passed to Control Room at a distance; On-the-spot sound, light warning function is provided.For user provides a kind of high-quality, high reliability, the arc fault detection product of high performance-price ratio, has Alarm Communication function, is the important component part of complete electric fire monitoring system.
Brief description of the drawings
Those skilled in the art below in conjunction with accompanying drawing, embodiment of the present utility model are described in detail, so that can implement the utility model by reading this instructions.
Fig. 1 illustrates according to the arc fault detection device of an embodiment of the present utility model.
Fig. 2 illustrates according to each ingredient of the arc fault detection device of an embodiment of the present utility model.
Fig. 3 illustrates according to the fault electric arc of the arc fault detection device of an embodiment of the present utility model and electric-leakage detection circuit block diagram.
Fig. 4 A, 4B illustrate according to the frequency detection circuit figure of the arc fault detection device of an embodiment of the present utility model.
Fig. 5 illustrates according to the line current testing circuit figure of the arc fault detection device of an embodiment of the present utility model.
Fig. 6 illustrates according to the electric-leakage detection circuit figure of the arc fault detection device of an embodiment of the present utility model.
Fig. 7 illustrates according to the line voltage detecting of the arc fault detection device of an embodiment of the present utility model and zero cross detection circuit figure.
Fig. 8 illustrates according to the host computer telecommunication circuit figure of the arc fault detection device of an embodiment of the present utility model.
Fig. 9 A, 9B illustrate according to the sound light alarming circuit figure of the arc fault detection device of an embodiment of the present utility model.
Figure 10 illustrates according to the control output circuit figure of the arc fault detection device of an embodiment of the present utility model.
Embodiment
To only describe various embodiment of the present utility model in detail by exemplary approach now.
Electric fire monitoring system is divided into three-decker: the superiors are monitoring host computers, and orlop is various presence detector, and detector can directly or by monitoring unit be connected with monitoring host computer.Wherein arc fault detection device adds this fire monitoring system as the one of presence detector.Break down electric arc in arc fault detection device detects by the circuit downstream of its monitoring time, can send the monitoring host computer of warning message to the superiors.The path of warning message transmission can be directly by arc fault detector to monitoring host computer, or send to monitoring host computer by monitoring unit.User also can arrange by monitoring host computer the various running parameters of arc fault detection device.Monitoring host computer is issued to corresponding arc fault detection device by communication network by these running parameters.
Be installed in the distribution branch road below 25A according to the arc fault detection device of an embodiment of the present utility model, be connected between isolating switch and monitored load.
With reference to figure 1, diagram is according to the arc fault detection device of an embodiment of the present utility model, and it can comprise: fault electric arc detection module 20, for detection of the fault electric arc of circuit and load; And alarm communication module 40, for according to the fault electric arc of described detection, the warning that fault is provided with communicate by letter.Wherein fault electric arc detection module 20 gathers the various electric parameters of circuit and load, and analyze and judge, form the detection information of fault electric arc, and carry out intercommunication with alarm communication module 40, detection information about fault electric arc is sent to alarm communication module 40, communicated by alarm communication module 40 and the monitoring host computer of electric fire monitoring system, realize the communication of arc fault, thereby realize the early warning of electrical fire.Selectively, after arc fault detection device detects fault electric arc, also can, when fault electric arc information is sent to the monitoring host computer of far-end, report to the police by the form such as sound or light at the scene, thereby omnibearing electric fire disaster warning function is provided.
Fig. 1 illustrates according to the arc fault detection device of an embodiment of the present utility model can also comprise switch power module 60, powers for fault electric arc detection module 20 and alarm communication module 40, keeps it normally to work.The working power of the internal circuit of arc fault detection device can directly be taken from public electric wire net, and the grid ac voltage of 220V/50Hz is converted to 3V, 3.3V or 5V DC voltage supply internal circuit.Alternatively, switch power module 60 can also comprise power down protection unit, ensures the continuous firing of arc fault detection device.Power down protection unit can be battery module.
With reference to figure 2, diagram is according to each ingredient of the arc fault detection device of an embodiment of the present utility model.As shown in the figure, wherein fault electric arc detection module 20 comprises: arc detection circuitry 24, for obtaining the high-frequency signal of described circuit; And arc-detection controller 22, for receiving the described high-frequency signal from described arc detection circuitry 24, and acquisition fault judges information.Specifically, arc detection circuitry 24 comprises high-frequency current signal magnetic test coil, and bandpass filter, and while relying on arc fault, the current waveform of circuit comprises this feature of abundant high fdrequency component, extracts the judgment criterion of high-frequency harmonic component as fault electric arc.In general, the frequency of the high-frequency harmonic component of extraction is 20kHZ, 30kHZ, and 50kHZ.The high-frequency harmonic signal extracting is sent to arc-detection controller 22 and analyzes, judges and process.
Arc-detection controller 22 is for calculating, compare, analyze the high-frequency harmonic signal from arc detection circuitry 24, and judges whether arc fault occurs in circuit.Owing to there are some specific loads in circuit, such as switched-mode power supply etc., also may cause arc detection circuitry 24 high-frequency harmonic component to be detected, but arc fault now not occur, be i.e. so-called false arc fault.Judge whether it is false arc fault by arc-detection controller 22, and treat with a certain discrimination.In the time being judged as the true arc fault of generation, carry out the subsequent treatment such as corresponding sound, light warning by UART communication port notification data communication controler 44.
Arc-detection controller 22 receive for carrying out the information of arc fault judgement, except high-frequency signal, also comprise other signals such as detection of electrical leakage signal, temperature compensation signal etc., will below further describe.
According to an embodiment of the present utility model, described fault electric arc detection module 20 further comprises: electric-leakage detection circuit 26, and for the low frequency signal obtaining being outputed to described arc-detection controller 22.Electric-leakage detection circuit 26 comprises low-frequency current mutual inductor and low-pass filter, and the low frequency detection of electrical leakage signal output of its acquisition is connected to arc-detection controller 22, carries out detection of electrical leakage by arc-detection controller 22.By electric-leakage detection circuit 26, realize the earth leakage detection functions of arc fault detection device, to for user provides more fully fault detect, save extra investment.
According to an embodiment of the present utility model, described fault electric arc detection module 20 further comprises: voltage detecting circuit 28, and synchronous for carrying out zero crossing, and synchronizing signal is outputed to described arc-detection controller 22.Specifically, voltage detecting circuit 28 is sampled to line voltage, carry out voltage over zero synchronous, and its output is connected to arc-detection controller 22, for carrying out arc fault detection accurately.
According to an embodiment of the present utility model, described fault electric arc detection module 20 further comprises: temperature-compensation circuit 27, for obtaining real time temperature, and outputs to described arc-detection controller 22 by temperature compensation signal.The current transformer using due to detection arc fault has responsive to temperature characteristic, this circuit can detect current transformer or voltage transformer (VT) temperature around in real time, and result is sent to arc-detection controller 22 analyzes, judge, with the parameters of corrective current mutual inductor or voltage transformer (VT), for carrying out arc fault detection accurately.
According to an embodiment of the present utility model, described fault electric arc detection module 20 further comprises: functional test circuit 29, and for verifying the function of described arc fault detection device.This circuit can facilitate user to carry out regular functional verification to arc fault detection device, comprises arc-detection function, earth leakage detection functions, data communication function etc., to guarantee the reliability of arc fault detection device.This circuit is made up of mechanism's testing button and set of circuits.In the time pressing the button, can produce leakage current, and trigger arc-detection controller 22 and export a string high-frequency signal to arc-detection coil.When arc fault detector 22 detects after effective output of electric-leakage detection circuit 26 and arc detection circuitry 24, can send of short duration sound, light warning by notification data communication controler 44, normal to show whole function current work.
According to an embodiment of the present utility model, described alarm communication module 40 comprises: data communication controller 44, and for generation of the warning message of described alarm communication module.Data communication controller 44 is main control units of whole alarm communication module 40, and its function comprises: control other circuit of alarm communication module, forward the warning message of arc-detection module 20, receive various command and control parameter from fire monitoring system.
According to an embodiment of the present utility model, described alarm communication module 40 also comprises: electrical isolation unit 41, and for described alarm communication module 40 and non-security potential circuit are isolated.The circuit that carries out system communication, sound and light alarm etc. in alarm communication module 40 is for signal processing, and the voltage of these circuit all belongs to the electric pressure that does not injure personal safety.Electrical isolation unit 41 can keep apart non-security potential circuit isolation by for example optically-coupled or magnetic-coupled mode with the circuit of alarm communication module 40, ensure operator's personal safety.
According to an embodiment of the present utility model, described alarm communication module 40 further comprises: mailing address arranges circuit 45, for the mailing address of described arc fault detection device is set; And system communication interface circuit 47, for according to described mailing address, the described warning message that described data communication controller 44 is produced is sent to the monitoring host computer of fire monitoring system.Specifically, mailing address arranges circuit 45 and gives a mailing address for arc fault detection device, in fire monitoring system, each communication terminal including arc fault detection device all has unique physical address, and this mailing address is for communicating by letter between the monitoring host computer of fire monitoring system and arc fault detection device.Communication system interface circuit 47 is connected with fire monitoring system for arc fault detection device.By communication system interface circuit 47, various warning messages are sent to the monitoring host computer of fire monitoring system, specifically comprise serial arc, electric arc in parallel, earth fault etc.Meanwhile, by communication system interface circuit 47, arc fault detection device receives the various parameters that monitoring host computer sends over, the parameter that such as fault electric arc alarm threshold value, warning time delay etc. can be set by user.
According to an embodiment of the present utility model, described alarm communication module 40 further comprises: warning indicating circuit 42, and for the described warning message producing according to described data communication controller 44, output indicator signal.Data communication controller 44 sends to the various failure messages of alarm communication module 40 according to fault electric arc detection module 20, form warning message, and warning message is sent to warning indicating circuit 42, be used for sending warning message and indication information, realize monitoring and the warning function of fire monitoring system.
According to an embodiment of the present utility model, described warning indicating circuit 42 comprises: optical alarm circuit 424, and for exporting visual alarm.After data communication controller 44 receives the various failure messages that arc-detection controller 22 sends over, form warning message, drive optical alarm circuit action, send visual alarm.
Alternatively or alternatively, described warning indicating circuit 42 comprises: audible alarm circuit 426, for output sound alerting signal.After data communication controller 44 receives the various failure messages that arc-detection controller 22 sends over, form warning message, drive audible alarm circuit operation, the alerting signal of sounding.
Alternatively or alternatively, described warning indicating circuit 42 comprises: dry contact output circuit 422, for exporting dry contact signal.Dry contact signal can comprise two states conventionally, is associated respectively with arc fault detection result, expresses and arc fault whether detected.Provide the reason of dry contact output circuit to be that some specific user does not need complicated communication function, and only need in the time arc fault being detected, move by trigger relay, or provide indicator signal.Dry contact output circuit 422 is for this class user's request, and simple control output is provided.
Alternatively or alternatively, described warning indicating circuit 42 comprises: working state indicating circuit 423, be used to indicate the duty of described arc fault detection device, for example can comprise that power supply is normal, communication failure etc.
According to an embodiment of the present utility model, described alarm communication module 40 further comprises: ann reset circuit 43, and for ann reset signal being exported to described data communication controller 44.Specifically, for the warning having occurred, user can select by the mode of telecommunication or on-site manual ann reset.For on-site manual reset mode, the output signal of ann reset circuit 43 is connected to data communication controller 44, when output communication controller 44 receives after effective ann reset signal, by sound, light Alerts Off, and by telecommunication circuit, ann reset action is sent to fire monitoring system monitoring host computer.
Shown in Fig. 2 according to the ingredient of the arc fault detection device of an embodiment of the present utility model, be according to its function, each ingredient to be divided.As concrete hardware design, a part shown in Fig. 2 can be implemented to multiple parts in hardware design, and multiple parts in Fig. 2, can in hardware design, be implemented to is a part.Such variation to those skilled in the art, is to carry out according to the common practise of the disclosed content of this instructions and this area.Below in conjunction with physical circuit figure, the arc fault detection device according to an embodiment of the present utility model shown in Fig. 2 is conducted further description.It should be noted that shown physical circuit figure, only help further to set forth principle of the present utility model for the object of signal, and do not lie in the physical circuit figure that the utility model is limited to illustrated embodiment.
With reference to figure 3, be depicted as according to the fault electric arc of the arc fault detection device of an embodiment of the present utility model and electric-leakage detection circuit block diagram.In this circuit, collect the voltage and current signal in circuit by frequency detection circuit, line current testing circuit, line voltage detecting and voltage zero-crossing detection circuit, electric-leakage detection circuit, be sent to microprocessor, and carry out analyzing and processing by microprocessor, judge whether that fault electric arc or electric leakage occur.Whether the microprocessor shown in it is used for realizing arc-detection controller 22, receives and comes from the various information that the circuit such as arc-detection, detection of electrical leakage obtains, judge whether to exist arc fault and be true arc fault.Current transformer shown in figure, integrating circuit and high-frequency current testing circuit are used for realizing arc detection circuitry 24.Earth Fault Detection mutual inductor shown in figure and differential current sensing circuit are used for realizing electric-leakage detection circuit 26.Zero crossing voltage monitoring circuit shown in figure is used for realizing voltage detecting circuit 28.PTT button shown in figure and PTT circuit are for practical function test circuit 29.Arc detection circuitry 24, electric-leakage detection circuit 26, voltage detecting circuit 28 and functional test circuit 29 not necessarily must be implemented according to illustrated hardware circuit, but can replace according to those skilled in the art's common technology means.For example, for realizing current transformer, integrating circuit and the high-frequency current testing circuit of arc detection circuitry 24, also can substitute with the filtering circuit that current sensing resistor and operational amplifier are built, realize equally the detection to high-frequency signal.
With reference to figure 4A, 4B, be illustrated as according to the frequency detection circuit figure of the arc fault detection device of an embodiment of the present utility model.This circuit is used for realizing arc detection circuitry 24, specifically formed by three bandpass filter, signal to current transformer TR1 output carries out filtering processing, gathers respectively the high-frequency current component of 20kHZ in loaded line, 30kHz, 50kHz, exports to microprocessor.
With reference to figure 5, be illustrated as the line current testing circuit figure according to the arc fault detection device of an embodiment of the present utility model.This circuit is for detection of line current, and specifically, this circuit and frequency detection circuit share a current transformer, i.e. TR1 shown in Fig. 4 A, and output line current signal is to microprocessor.
With reference to figure 6, be illustrated as according to the electric-leakage detection circuit figure of the arc fault detection device of an embodiment of the present utility model.This circuit is used for realizing electric-leakage detection circuit 26, and specifically, this circuit passes through current transformer TR2, i.e. Earth Fault Detection mutual inductor, and the electric leakage signal on detection line, exports to microprocessor.
With reference to figure 7, be illustrated as according to the line voltage detecting of the arc fault detection device of an embodiment of the present utility model and zero cross detection circuit figure.This circuit is used for realizing voltage detecting circuit 28, and specifically, this circuit carries out voltage division processing to input voltage, and output line voltage signal and voltage zero-crossing signal are to microprocessor, and wherein voltage zero-crossing signal is square wave form.
With reference to figure 8, be illustrated as the host computer telecommunication circuit figure according to the arc fault detection device of an embodiment of the present utility model.This circuit is communicated by letter with host computer by CAN bus, and described host computer can be for example the monitoring host computer of fire monitoring system, or can be the monitoring unit of fire monitoring system.
With reference to figure 9A, 9B, be illustrated as according to the sound light alarming circuit figure of the arc fault detection device of an embodiment of the present utility model.Wherein Fig. 9 A is used for realizing optical alarm circuit 424, specifically realizes warning by LED lamp.Fig. 9 B is used for realizing audible alarm circuit 426, specifically realizes warning by hummer.
With reference to Figure 10, be illustrated as the control output circuit figure according to the arc fault detection device of an embodiment of the present utility model.This circuit is used for realizing dry contact output circuit 422, and the dry contact signal of its output is used for driving relay, and the output of relay has power down self-retaining function.
This product, as an important component part of electric fire monitoring system, has following function: survey the various arc faults of its downstream circuit and certain loads, comprise serial arc, electric arc in parallel, ground arc and leak current fault; Provide on-the-spot sound and light alarm; By CAN bus communication network, failure message is reached to the fire monitoring system of far-end; Provide one group of dry contact to facilitate and the interlock of other alarm monitoring system; State before output dry contact still can automatically keep after power supply power-fail; There is early warning or warning delay function; Report to the police after generation, can select make the circuit breaker tripping connecting or do not thread off; As connecting annex, can drive miniature circuit breaker to cut off the break down power supply of circuit of downstream.
Below provided the various embodiments of the utility model for the object of example and description, but it is not intended to or protection domain of the present utility model is limited to disclosed form exhaustive.It may occur to persons skilled in the art that a lot of amendments and variant.Therefore; embodiment is for principle of the present utility model, practical application being described better and making the other staff in those skilled in the art can understand following content and select and describe;; do not departing under the prerequisite of spirit of the present utility model, all modifications of making and replacement all will fall in the protection domain of the present utility model of claims definition.
Claims (14)
1. an arc fault detection device, comprising:
Fault electric arc detection module (20), for detection of the fault electric arc of circuit and load; And
Alarm communication module (40), for according to the fault electric arc of described detection, the warning that fault is provided with communicate by letter,
Wherein said fault electric arc detection module (20) comprising:
Arc detection circuitry (24), for obtaining the high-frequency signal of described circuit; And
Arc-detection controller (22), for receiving the described high-frequency signal from described arc detection circuitry (24), and acquisition fault judges information.
2. arc fault detection device according to claim 1, wherein said fault electric arc detection module (20) further comprises:
Electric-leakage detection circuit (26), for outputing to the low frequency signal obtaining described arc-detection controller (22).
3. arc fault detection device according to claim 2, wherein said fault electric arc detection module (20) further comprises:
Voltage detecting circuit (28), synchronous for carrying out zero crossing, and synchronizing signal is outputed to described arc-detection controller (22).
4. arc fault detection device according to claim 3, wherein said fault electric arc detection module (20) further comprises:
Temperature-compensation circuit (27), for obtaining real time temperature, and outputs to described arc-detection controller (22) by temperature compensation signal.
5. arc fault detection device according to claim 4, wherein said fault electric arc detection module (20) further comprises:
Functional test circuit (29), for verifying the function of described arc fault detection device.
6. according to arbitrary described arc fault detection device in claim 1 to 5, wherein said alarm communication module (40) comprising:
Data communication controller (44), for generation of the warning message of described alarm communication module.
7. arc fault detection device according to claim 6, wherein said alarm communication module (40) also comprises:
Electrical isolation unit (41), for isolating described alarm communication module (40) and non-security potential circuit.
8. arc fault detection device according to claim 7, wherein said alarm communication module (40) further comprises:
Mailing address arranges circuit (45), for the mailing address of described arc fault detection device is set; And
System communication interface circuit (47), for according to described mailing address, is sent to the described warning message of described data communication controller (44) generation the monitoring host computer of fire monitoring system.
9. arc fault detection device according to claim 8, wherein said alarm communication module (40) further comprises:
Warning indicating circuit (42), for the described warning message producing according to described data communication controller (44), output indicator signal.
10. arc fault detection device according to claim 9, wherein said warning indicating circuit (42) comprising:
Optical alarm circuit (424), for exporting visual alarm.
11. arc fault detection devices according to claim 9, wherein said warning indicating circuit (42) comprising:
Audible alarm circuit (426), for output sound alerting signal.
12. arc fault detection devices according to claim 9, wherein said warning indicating circuit (42) comprising:
Dry contact output circuit (422), for exporting dry contact signal.
13. arc fault detection devices according to claim 9, wherein said warning indicating circuit (42) comprising:
Working state indicating circuit (423), is used to indicate the duty of described arc fault detection device.
14. arc fault detection devices according to claim 8, wherein said alarm communication module (40) further comprises:
Ann reset circuit (43), for exporting ann reset signal to described data communication controller (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320844719.4U CN203929969U (en) | 2013-12-19 | 2013-12-19 | Arc fault detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320844719.4U CN203929969U (en) | 2013-12-19 | 2013-12-19 | Arc fault detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203929969U true CN203929969U (en) | 2014-11-05 |
Family
ID=51825766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320844719.4U Expired - Lifetime CN203929969U (en) | 2013-12-19 | 2013-12-19 | Arc fault detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203929969U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203823A (en) * | 2014-05-30 | 2015-12-30 | 上海品研测控技术有限公司 | Current detection system used for arc failure circuit breaker |
| CN105425121A (en) * | 2015-11-13 | 2016-03-23 | 国网山东省电力公司德州供电公司 | Insulating material breakdown detection alarm circuit based on optical coupler |
| CN107870286A (en) * | 2017-11-06 | 2018-04-03 | 福州大学 | A kind of DC Line Fault arc method for measuring and device |
| WO2018177028A1 (en) * | 2017-03-29 | 2018-10-04 | 余晓东 | Thermal signal detection system based on thermal motion of free electrons |
| CN109061422A (en) * | 2018-09-14 | 2018-12-21 | 江苏斯菲尔电气股份有限公司 | Electric instrument with fault electric arc detecting function |
| 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 |
| WO2019091410A1 (en) * | 2017-11-07 | 2019-05-16 | 施耐德电气工业公司 | Arc leakage protection device |
| CN110716110A (en) * | 2019-10-11 | 2020-01-21 | 威胜集团有限公司 | Electrical safety detection device, detection method and intelligent socket |
-
2013
- 2013-12-19 CN CN201320844719.4U patent/CN203929969U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203823A (en) * | 2014-05-30 | 2015-12-30 | 上海品研测控技术有限公司 | Current detection system used for arc failure circuit breaker |
| CN105425121A (en) * | 2015-11-13 | 2016-03-23 | 国网山东省电力公司德州供电公司 | Insulating material breakdown detection alarm circuit based on optical coupler |
| WO2018177028A1 (en) * | 2017-03-29 | 2018-10-04 | 余晓东 | Thermal signal detection system based on thermal motion of free electrons |
| CN107870286A (en) * | 2017-11-06 | 2018-04-03 | 福州大学 | A kind of DC Line Fault arc method for measuring and device |
| WO2019091410A1 (en) * | 2017-11-07 | 2019-05-16 | 施耐德电气工业公司 | Arc leakage protection device |
| GB2583200A (en) * | 2017-11-07 | 2020-10-21 | Schneider Electric Ind Sas | ARC leakage protection device |
| CN109061422A (en) * | 2018-09-14 | 2018-12-21 | 江苏斯菲尔电气股份有限公司 | Electric instrument with fault electric arc detecting function |
| 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 |
| CN110716110A (en) * | 2019-10-11 | 2020-01-21 | 威胜集团有限公司 | Electrical safety detection device, detection method and intelligent socket |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203929969U (en) | Arc fault detection device | |
| CN202998169U (en) | Intelligent power source monitoring device | |
| CN103439633A (en) | Low-current ground fault line selection device | |
| CN201184899Y (en) | Monitor for electric fire | |
| CN202230166U (en) | Fault electric arc detection module and electric fire hazard monitoring detector | |
| CN109669104A (en) | A kind of method and its monitoring device based on Injection Signal monitoring ship network system Intelligent insulation state | |
| CN103366490A (en) | Electrical fire early-warning device and electrical fire early-warning method | |
| CN206211937U (en) | A kind of DC distribution cabinet intelligent controller for photovoltaic generating system | |
| CN106443371A (en) | Novel cable insulation online detection apparatus | |
| CN201570102U (en) | Electric fire comprehensive monitoring device | |
| CN105759172B (en) | Active earthed system abnormal detector and method | |
| CN203909966U (en) | All-in-one temperature-detecting intelligent alarm | |
| CN202257832U (en) | Detector for electric fire protection | |
| CN109299667A (en) | A kind of electric fire-control safety check portable detector | |
| CN105277903A (en) | Method for performing remote monitoring on UPS | |
| CN209894890U (en) | Grounding current on-line monitoring device for grounding iron core of transformer based on PLC | |
| CN203929951U (en) | Intelligent alarm is surveyed in integral type electric leakage | |
| CN109962446A (en) | Safety utilization of electric power intelligent protection device | |
| CN203216981U (en) | Intelligent high-voltage live-line display blocking device based on AVR singlechip | |
| CN202929096U (en) | Inductive high-voltage live detection device | |
| CN204179643U (en) | A kind of three-phase variable frequency motor phase-lacking protective device with self-checking function | |
| CN206789012U (en) | Residual-current electrical fire monitor and alarm system | |
| CN209709661U (en) | Safety utilization of electric power intelligent protection device | |
| CN201789266U (en) | Electric leakage monitoring circuit for electrical appliance device | |
| CN104749486A (en) | Residual current protector based IT system single-phase fault positioning method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141105 |