CN106597208A - Breaker failure start loop detection device and method - Google Patents
Breaker failure start loop detection device and method Download PDFInfo
- Publication number
- CN106597208A CN106597208A CN201710055154.4A CN201710055154A CN106597208A CN 106597208 A CN106597208 A CN 106597208A CN 201710055154 A CN201710055154 A CN 201710055154A CN 106597208 A CN106597208 A CN 106597208A
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- detection
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- breaker failure
- later time
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- 238000001514 detection method Methods 0.000 title claims abstract description 93
- 238000000034 method Methods 0.000 title claims description 10
- 230000003993 interaction Effects 0.000 claims abstract description 13
- 230000003071 parasitic effect Effects 0.000 claims description 18
- 238000012360 testing method Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 description 7
- 238000007689 inspection Methods 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- 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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
- G01R31/67—Testing the correctness of wire connections in electric apparatus or circuits
Abstract
A breaker failure start loop detection device comprises a detection module, a man-machine interaction module and a power module; the detection module is provided with a wiring terminal, wherein the wiring terminal is connected with a breaker failure start loop wiring port through an acquisition line; the detection module is connected with the man-machine interaction module; the power module powers the detection module and the man-machine interaction module. The breaker failure start loop detection method comprises the following steps: using the acquisition line to connect the wiring terminal on the detection module with the corresponding wiring port of the breaker failure start loop; using the man-machine interaction module to input detection current determine contact point or protect motion contact point signals into the detection module; allowing the detection module to use the acquisition line to obtain a signal in the breaker failure start loop, and determining whether the current determine contact point or protect motion contact point are conducted or not according to existence of the signal; determining the wiring is normal if the contact point is conducted, and determining the wiring is wrong if not conducted.
Description
Technical field
The present invention relates to a kind of detector, more particularly to a kind of breaker failure starting-up later time detector and detection method.
Background technology
Increasingly sophisticated with electrical network, the security of electrical network becomes more and more important, and electrical network band is given in the tripping of relay protection
The harm for coming is increasing.Wherein primary cut-out is used as the Special electric that high-tension circuit is switched on or switched off under normal or failure condition
Device, plays the security guards effect of electrical networks at different levels.When line failure, if because there is breaker tripping in circuit breaker failure
Phenomenon, will make fault spread, and the tripping operation that causes to bypass the immediate leadership causes large-area power-cuts, in addition cause power equipment to burn, personal injury etc.
Serious consequence.And breaker fail protection can cut off other breakers on the bus of stoppage circuit breaker place with the shorter time limit,
Power failure range is reduced, ensure the stable operation of whole electrical network, it can be seen that breaker fail protection has in power system
Critically important effect.At present, 220kV and above transformer station and 110kV transformer stations that some are important have installed breaker failure
Protection.But not enough fasten because secondary line often occurs in Jing, loop wrong position, to have breakage, contact obstructed in the middle of cable etc. various
Reason causes unsuccessful reason loop easily to go wrong.This is accomplished by us and detection mistake is had in the middle of the work of each regular inspection
The correctness of clever starting-up later time.Can use without relevant speciality instrument in field inspection process, traditional artificial node can only be adopted
The method of measurement is detected to breaker failure starting-up later time, and there is the method for traditional artificial contact measurement instrument to simulate
The shortcomings of repeated high, easy generation is leaked item, needs many people to coordinate, along with measurement meter and the error of manual measurement so that traditional
Breaker failure starting-up later time verification and measurement ratio it is relatively low, extend route protection time between predetermined repairs, and then when increased line outage
Between.If testing result is not inconsistent with expection in checking process, it may be possible to which breaker failure starting-up later time occurs in that wiring error
Or there is parasitic loop, this is accomplished by staff and detects confirmation again to the associated contacts in whole loop, and which section finds out is
Circuit connection between contact is wrong or there is parasitic loop, and searching wiring error and parasitic loop overlong time can also affect line
Protect time between predetermined repairs in road.
The content of the invention
Present invention offer is a kind of can to significantly improve the disconnected of operating efficiency, reduction operating personnel's labour intensity and cost of labor
Road device unsuccessful reason loop detector, to solve the problems, such as prior art.
To solve above-mentioned technical problem, the present invention is employed the following technical solutions：
Breaker failure starting-up later time detector, including detection module, human-machine exchange module and power module, set on detection module
It is equipped with the binding post being connected by gathering line with breaker failure starting-up later time Wiring port, detection module and man-machine interaction mould
Block connects, and power module is that detection module and human-computer interaction module are powered.
The detection module includes CPU, and power supply interface is connected with CPU, is also associated with detecting the open circuit that gathering line is obtained
The circuit for detecting connecting point of signal in device unsuccessful reason loop, and the contact conversion electricity that the detection object of pair of wire connection terminals is changed
Road.
Also include rechargeable battery, rechargeable battery is connected with power module and external power source.
The gathering line is aviation plug with the interface of detector, and the interface being connected with breaker failure starting-up later time is spiral shell
Wire form accesses terminal.
Binding post on detection module is connected by gathering line with the respective terminal mouth of breaker failure starting-up later time
Connect；The signal of detection current judgement contact or protection act contact, detection are input into detection module by human-machine exchange module
Module obtains the signal in breaker failure starting-up later time by gathering line, according to the presence or absence of signal, judges current judgement contact
Or protection act contact is turned on or is not turned on, conducting then judges that wiring is normal, is not turned on, and judges that wiring is wrong.
When detecting to current judgement contact, current judgement contact is sent to detection module by human-machine exchange module
The signal of detection, the CPU of detection module is received after signal, to the node change-over circuit sending signal being connected with CPU, makes to be protected
The binding post of shield action connection point detection is disconnected with CPU, while being input into A phases or B phases in breaker failure starting-up later time
Or C phase currents, judge whether the nodal test circuit connected with CPU receives and A phases or B phases or C phases loop is corresponding adopts
The signal of line concentration, if receiving signal, judges that the current node connection of the phase is normal, and the current node for otherwise judging the phase connects
Connect abnormal.
When detecting to protection act contact, protection act contact is sent to detection module by human-machine exchange module
The signal of detection, the CPU of detection module is received after signal, to the node change-over circuit sending signal being connected with CPU, makes to carry out electricity
Stream differentiates that the binding post of contact detection is disconnected with CPU, while being input into A phases or B phases in breaker failure starting-up later time
Or C phase currents, judge whether the circuit for detecting connecting point connected with CPU receives and A phases or B phases or C phases loop is corresponding adopts
The signal of line concentration, if receiving signal, judges that the protection contact connection of the phase is normal, and the protection node for otherwise judging the phase connects
Connect abnormal.
It is described when carrying out current judgement contact or protection act contact and detecting, while carry out the detection of parasitic loop, such as
Fruit detects parasitic loop, then shown in the display screen of human-machine exchange module.
The connection diagram of breaker failure starting-up later time, and loop are shown on the display screen of the human-machine exchange module
Upper each contact can be according to the display methods for pre-setting, and the signal of the circuit for detecting connecting point detection obtained according to CPU is carried out automatically
Contact connection shows and does not connect display with contact.
Beneficial effects of the present invention：After the present invention is by the interface connection of gathering line, examined by human-computer interaction module
The operation and display of survey, is remarkably improved operating efficiency topic and reduces operating personnel's labour intensity and cost of labor.
Description of the drawings
Fig. 1 is breaker failure starting-up later time detector material object layout.
Fig. 2 is the interface diagram that detector is connected with breaker failure starting-up later time.
Fig. 3 is A phase protection act contact overhaul flow charts.
Fig. 4 is A judgment by phase current contact overhaul flow charts.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
As shown in figure 1, the breaker failure starting-up later time detector that the present invention is provided, including detection module, human-computer exchange
Module and power module, are provided with the Wiring port detected in breaker failure starting-up later time by adopting on detection module
The binding post of line concentration connection, and the Wiring port detected in breaker failure starting-up later time is breaker protection screen terminal
A part of interface in row.Detection module is connected with human-computer interaction module, and power module is detection module and human-computer interaction module
Power supply.Human-computer interaction module includes display screen and button, and button can be touch-screen button.During connection, binding post and relay
The contact in terminal block after device protection screen is attached.
Above-mentioned detection module includes CPU, and system power supply interface, clock, serial interface, system power supply are connected with CPU
Interface is used for and power module connection is powered.It is also associated with detecting that the breaker failure that gathering line is obtained starts back on CPU
The circuit for detecting connecting point of signal in road, and the contact change-over circuit that the gathering line break-make of the connection of pair of wire connection terminals is changed.
By key-press input signal, selection carries out detecting or protection act contact is detected to current judgement contact, by pressing
After key input, the break-make of the binding post that node change-over circuit is connected by conversion with gathering line carries out the acquisition of signal.
Above-mentioned circuit for detecting connecting point may be selected existing signal deteching circuit, in breaker failure starting-up later time
Whether detected with signal.I.e. by gathering line connecting detection instrument and the detection contact of breaker failure starting-up later time,
Gathering line obtains the signal of detection contact and is sent to circuit for detecting connecting point, and according to circuit for detecting connecting point signal whether is detected, and examines
Judge that contact is normal if measuring, otherwise judge contact failure, then the display screen in human-computer interaction module is shown.And connect
Point change-over circuit then may be selected to use relay circuit, and by the contact of relay break-make control is realized.
Present invention additionally comprises rechargeable battery, rechargeable battery is connected with power module and external power source.It is by external power source
It is rechargeable battery powered, then powered for power module by rechargeable battery.
The interface of gathering line and detector is secondary aviation plug, and with dust cap design, prevents dust from entering, and disconnected
Device unsuccessful reason loop-coupled interface in road is that screw type accesses terminal.
As shown in Fig. 2 being the schematic diagram that detector is connected with malfunction of the electric relay starting-up later time.
It is of the invention the contact of the various pieces in unsuccessful reason loop is detected respectively by intelligent chip control,
And operated by touch-screen human-computer exchange and show testing result.
Detector has six binding posts, and gathering line, the end after six gathering lines and relay protection screen are connected respectively
Six contact connections of 8D21,8D23,8D24,8D25,8D26, the 8D30 in loop in son row are detected；Detector is safe,
It is by isolated from power, protection device is completely isolated with detector inside.Detector is simple to operate, small volume, easy to carry.
8D21 in Fig. 2,8D23,8D24,8D25,8D25,8D30,1D30,1D31,1D32,1D37,1D38,1D39,
1D29,1D36,4D129,4D128,4D126 are the terminal block numbering in route protection screen.When the present invention is detected, connection
Six test points of 8D21,8D23,8D24,8D25,8D25,8D30, carry out respectively current judgement contact, the inspection of protection act contact
Survey.
And number [01], 011,012,013,014,020 be breaker protection screen in cable connection loop numbering；
8SLP1,1SLP1,1SLP2,1SLP3,2SLP1,2SLP2,2SLP3,4SLP1 are the hard pressing plate in route protection screen；SLA-2、
SLB-2, SLC-2, SL2-2 are the current judgement contact in breaker auxiliary protection device：2TIA、2TJB、2TJC、1TJA、
1TJB, 1TJC, 1TJQ, 1TJR, 2TJQ, 2TJR are the protection act contact of line protective devices.
The present invention also provides a kind of breaker failure starting-up later time detection method, line is carried out first, i.e., by gathering line
Binding post on detection module is connected with the respective terminal mouth of breaker failure starting-up later time.When needs are detected
When, the signal of detection current judgement contact or protection act contact, detection are input into detection module by human-machine exchange module
Module obtains the signal in breaker failure starting-up later time by gathering line, according to the presence or absence of signal, judges current judgement contact
Or protection act contact is turned on or is not turned on, conducting then judges that wiring is normal, is not turned on, and judges that wiring is wrong.
Specifically, the process for carrying out current judgement contact or the detection of protection act connection point on-off is as follows：
When detecting to current judgement contact, electric current is sent to the CPU of detection module by the button of human-machine exchange module
Differentiate the signal of contact detection, the CPU of detection module is received after signal, to the contact change-over circuit sending signal being connected with CPU,
The binding post for carrying out protection act contact detection is set to disconnect with CPU, while being input into A in breaker failure starting-up later time
Phase or B phases or C phase currents, judge whether the circuit for detecting connecting point being connected with CPU receives and A phases or B phases or C phase current contacts
The signal of conducting, if receiving signal, judges that the electric current contact connection of the phase is normal, and the current node for otherwise judging the phase connects
Connect abnormal.
As shown in Fig. 2 when the detection of current judgement contact is carried out, causing to be connected with 8D30 interfaces by contact change-over circuit
The corresponding Wiring port signal of gathering line disconnect, and the corresponding binding post of 8D21,8D23,8D24,8D25,8D25,8D26
Signal is connected.As shown in figure 4, by taking A phases as an example, A phase currents are input into in breaker failure starting-up later time, then judge whether only
Have in SLA-2 junction closures, i.e. 8D23,8D24,8D25,8D26 whether only the gathering line of connection 8D23 collects signal, such as
If fruit is, then it represents that output is correct, otherwise, output error, and the letter of the gathering line to 8D24,8D25,8D26 connection are represented
Number it is acquired, judges actual circuit-closing contacts, and shows on a display screen.
When detecting to protection act contact, protection act contact is sent to detection module by human-machine exchange module
The signal of detection, the CPU of detection module is received after signal, to the node change-over circuit sending signal being connected with CPU, makes to carry out electricity
Stream differentiates that the binding post of contact detection is disconnected with CPU, while transmission line simulation A phases or B phases or C phase transient faults,
Judge whether receive the collection corresponding with A phases or B phases or C phases loop with the protection act circuit for detecting connecting point of CPU connections
The signal of line, if receiving signal, judges that the protection contact connection of the phase is normal, otherwise judges the protection contact connection of the phase
It is abnormal.
As shown in Fig. 2 when the detection of protection act contact is carried out, causing to be connected with 8D21 interfaces by contact change-over circuit
The corresponding Wiring port signal of gathering line disconnect, and the corresponding binding post of 8D23,8D24,8D25,8D25,8D26,8D30
Signal is connected.As shown in figure 3, by taking A phases as an example, with relay-protection tester current analog A phase protection acts, then judgement is
Only whether the gathering line of connection 8D23 is collected in no only 1TJA, 2TJA junction closure, i.e. 8D23,8D24,8D25,8D26
Signal, if it does, then representing that output is correct, otherwise, represents output error, and to the collection of 8D24,8D25,8D26 connection
The signal of line is acquired, and judges actual circuit-closing contacts, and shows on a display screen.
In the design of the present invention, the connection that breaker failure starting-up later time is shown on the display screen of human-machine exchange module is shown
It is intended to, and each contact can be according to the display methods for pre-setting on loop, the letter of the circuit for detecting connecting point detection obtained according to CPU
Number, contact connection display is carried out automatically does not connect display with contact.For example, the contact for needing detection is represented using yellow, then
During test, connect with and correct contact is shown in green, connect still incorrect contact shown in red.Facilitate testing staff
Viewing judges.
When current judgement contact is carried out or protection act contact is detected, while the detection of parasitic loop is carried out, if inspection
Parasitic loop is measured, is then shown in the display screen of human-machine exchange module.If detecting the presence of parasitic loop, accordingly
Contact can change color and show parasitic loop contact, and personal observations immediately can learn it is which bar circuit branch has parasitic loop,
Inspection of the personnel to each branch road is saved, the checkability of parasitic loop is improved.
Binding post on detection module is connected to breaker failure and is opened by the present invention in detection by six roots of sensation gathering line
In dynamic loop, by the current judgement contact in detection breaker failure starting-up later time or the break-make of protection act contact, and then
Detection current judgement contact or the correctness of protection act contact wiring, and judge whether deposited in breaker failure starting-up later time
In parasitic loop.
The present invention with breaker failure starting-up later time detector to the current judgement contact of breaker failure starting-up later time,
Parasitic loop in protection act contact and whole loop is accurately detected successively, in contact misoperation and loop is detected
Parasitic loop when, breaker failure starting-up later time detector can accurately be detected and shown.The measurement of Traditional Man universal meter
Method at least needs the instrument simulated failure of 74 times to measure, and breaker failure starting-up later time detector saves the same of manual measurement
When, completing entirely to check work by only needing fault simulation 25 times, breaker failure starting-up later time inspection detection time can shorten
Complete in 15 minutes, and can accurately detect parasitic loop, the directionality of parasitic loop can also be shown.
Above-described is only the preferred embodiment of the present invention, it is noted that for a person skilled in the art,
Under the premise of without departing from general idea of the present invention, some changes and improvements can also be made, these should also be considered as the present invention's
Protection domain.
Claims (9)
1. breaker failure starting-up later time detector, it is characterised in that：Including detection module, human-machine exchange module and power supply mould
Block, is provided with the binding post being connected by gathering line with breaker failure starting-up later time Wiring port on detection module, detection
Module is connected with human-computer interaction module, and power module is that detection module and human-computer interaction module are powered.
2. breaker failure starting-up later time detector according to claim 1, it is characterised in that：The detection module includes
Power supply interface is connected with CPU, CPU, is also associated with detecting in the breaker failure starting-up later time that gathering line is obtained that signal connects
Point detection circuit, and the contact change-over circuit that the detection object of pair of wire connection terminals is changed.
3. breaker failure starting-up later time detector according to claim 1, it is characterised in that：Also include rechargeable battery,
Rechargeable battery is connected with power module and external power source.
4. breaker failure starting-up later time detector according to claim 1, it is characterised in that：The gathering line and detection
The interface of instrument is aviation plug, and the interface being connected with breaker failure starting-up later time is that screw type accesses terminal.
5. breaker failure starting-up later time detection method, it is characterised in that：Binding post on detection module is passed through into gathering line
It is connected with the respective terminal mouth of breaker failure starting-up later time；By human-machine exchange module to detection module input detection electric current
Differentiate the signal of contact or protection act contact, detection module obtains the letter in breaker failure starting-up later time by gathering line
Number, according to the presence or absence of signal, judging current judgement contact or the conducting of protection act contact or be not turned on, conducting then judges wiring
Normally, it is not turned on, judges that wiring is wrong.
6. breaker failure starting-up later time detection method according to claim 5, it is characterised in that：Current judgement is being connect
When point is detected, the signal of current judgement contact detection is sent to detection module by human-machine exchange module, detection module
CPU is received after signal, to the node change-over circuit sending signal being connected with CPU, makes the wiring for carrying out protection act contact detection
Terminal is disconnected with CPU, while being input into A phases or B phases or C phase currents in breaker failure starting-up later time, judges to connect with CPU
Whether the nodal test circuit for connecing receives the signal of the gathering line corresponding with A phases or B phases or C phases loop, if received
Signal, judges that the current node connection of the phase is normal, otherwise judges that the current node malunion of the phase is normal.
7. breaker failure starting-up later time detection method according to claim 5, it is characterised in that：Protection act is being connect
When point is detected, the signal of protection act contact detection is sent to detection module by human-machine exchange module, detection module
CPU is received after signal, to the node change-over circuit sending signal being connected with CPU, makes the wiring for carrying out current judgement contact detection
Terminal is disconnected with CPU, while being input into A phases or B phases or C phase currents in breaker failure starting-up later time, judges to connect with CPU
Whether the circuit for detecting connecting point for connecing receives the signal of the gathering line corresponding with A phases or B phases or C phases loop, if received
Signal, judges that the protection contact connection of the phase is normal, otherwise judges that the protection node malunion of the phase is normal.
8. the breaker failure starting-up later time detection method according to claim 6 or 7, it is characterised in that：It is described to carry out
When current judgement contact or protection act contact are detected, while the detection of parasitic loop is carried out, if detecting parasitic loop,
Shown in the display screen of human-machine exchange module.
9. breaker failure starting-up later time detection method according to claim 8, it is characterised in that：
The connection diagram of breaker failure starting-up later time is shown on the display screen of the human-machine exchange module, and it is each on loop
Contact can be according to the display methods for pre-setting, and the signal of the circuit for detecting connecting point detection obtained according to CPU carries out contact automatically
Connection shows and does not connect display with contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710055154.4A CN106597208A (en) | 2017-01-24 | 2017-01-24 | Breaker failure start loop detection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710055154.4A CN106597208A (en) | 2017-01-24 | 2017-01-24 | Breaker failure start loop detection device and method |
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| CN106597208A true CN106597208A (en) | 2017-04-26 |
Family
ID=58586056
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710055154.4A Pending CN106597208A (en) | 2017-01-24 | 2017-01-24 | Breaker failure start loop detection device and method |
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Application publication date: 20170426 |