CN106483423A - A kind of trouble shoot method and device of breaker open operation electric loop - Google Patents
A kind of trouble shoot method and device of breaker open operation electric loop Download PDFInfo
- Publication number
- CN106483423A CN106483423A CN201611102145.8A CN201611102145A CN106483423A CN 106483423 A CN106483423 A CN 106483423A CN 201611102145 A CN201611102145 A CN 201611102145A CN 106483423 A CN106483423 A CN 106483423A
- Authority
- CN
- China
- Prior art keywords
- fault
- circuit
- detected
- region
- breaker
- 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.)
- Granted
Links
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
-
- 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
- G01R31/08—Locating faults in cables, transmission lines, or networks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Keying Circuit Devices (AREA)
Abstract
The disclosure is directed to a kind of trouble shoot method and device of breaker open operation electric loop, it is applied to breaker open operation electric loop, method includes that when the switching winding in the breaker open operation electric loop does not respond sub-switching operation detection breaker closing position monitors whether red light is lighted；If non-lit up, the first region to be detected is determined；Detection order is preset according to first each part in the described first region to be detected is detected, determine the trouble point in the described first region to be detected；If lighting, the second region to be detected is determined；Detection order is preset according to second each part in the described second region to be detected is detected, determine the trouble point in the described second region to be detected.Using the trouble shoot method, quickly fault can be positioned, be that follow-up maintenance and maintenance are provided and greatly helped, be effectively shortened the time of failture evacuation.
Description
Technical field
It relates to technical field of electricity, more particularly to a kind of trouble shoot method of breaker open operation electric loop and
Device.
Background technology
Can breaker be very important power supply unit in power system, fast after the normal operation of breaker and fault
Speed is processed, and is related to safety and stability and the reliability of power system.
In recent years, the extensive application with digital relay and monitoring technology in secondary loop of breaker, breaker open operation
The phenomenon of loop fault and lookup processing method, also compared with the sub-gate circuit of conventional protection, present some new features.
As lookup method is improper, cause search efficiency low, run time extends in spite of illness in turn result in circuit breaker failure.In addition, when event
Barrier is processed not in time so that when power system is short-circuited fault, protection device cannot start, and may result in tripping operation of bypassing the immediate leadership, and is caused
The hidden danger that fault coverage expands, the safety and stability production of impact energy unit.
Therefore, the quick fault for searching Microcomputer Protection type breaker open operation electric loop is that those skilled in the art need solution badly
Problem certainly.
Content of the invention
There is provided a kind of trouble shoot method and device of breaker open operation electric loop in the embodiment of the present application, to solve
The low problem of brake division loop of circuit breaker trouble shoot efficiency of the prior art.
In order to solve above-mentioned technical problem, the embodiment of the present application discloses following technical scheme：
A kind of trouble shoot method of breaker open operation electric loop, is applied to breaker open operation electric loop, the side
Method includes：
When the switching winding in the breaker open operation electric loop does not respond sub-switching operation, breaker closing position is detected
Put whether supervision red light is lighted；
When the breaker closing position monitors that red light is non-lit up, determine normal comprising rectifier power source operation panel, breaker
The circuit region for opening the low locking of auxiliary contact, switching winding, air pressure and dc source is the first region to be detected；Pre- according to first
If detection order is detected to each part in the described first region to be detected, determine in the described first region to be detected
Trouble point；
When the breaker closing position monitors that red light is lighted, determine and turn comprising on/off switch controlling switch, a distant place on the spot
Change switch, the circuit region of microcomputer protecting device is the second region to be detected；Detection order is preset to described second according to second
Each part in region to be detected detected, determines the trouble point in the described second region to be detected.
Alternatively, described according to first preset detection order each part in the described first region to be detected is examined
Survey, the trouble point in the described first region to be detected is determined, including：
Detection rectifier power source operation panel whether fault；
If the rectifier power source operation panel fault, the rectifier power source operation panel is defined as trouble point；If the rectification
The non-fault of power operation plate, then the normally opened auxiliary contact of detection breaker whether fault；
If the normally opened auxiliary contact fault of the breaker, normally opened for breaker auxiliary contact is defined as trouble point；If
The non-fault of the normally opened auxiliary contact of the breaker, then detect the switching winding whether fault；
If the switching winding fault, the switching winding is defined as trouble point；If the non-fault of the switching winding,
Detect the low locking of the air pressure whether fault；
If the low locking fault of the air pressure, low for air pressure locking is defined as trouble point；If the low locking of the air pressure is not
Fault, then detect whether the dc source is abnormal；
If the dc source exception, the dc source is defined as trouble point；If the dc source is not abnormal,
Detect whether the connection circuit in the described first region to be detected is abnormal；
If the connection circuit exception in first region to be detected, by the connection circuit in the described first region to be detected
It is defined as trouble point.
Alternatively, each connection plug corresponding with sub-gate circuit whether loose contact on detection rectifier power source operation panel；If
Described any one connection plug loose contact corresponding with sub-gate circuit, determines the rectifier power source operation panel fault；
Or, the wiring whether loose contact of the normally opened auxiliary contact of the breaker is detected, and tests the breaker
Whether normally opened auxiliary contact closes well；If the wire contacts of the normally opened auxiliary contact of the breaker are bad or cannot close, really
Determine the normally opened auxiliary contact fault of the breaker；
Or, the connector lug whether loose contact of the switching winding is detected, and tests the resistance of the switching winding
Whether abnormal；If the connector lug loose contact of the switching winding or resistance exception, the switching winding fault is determined；
Or, when the pressure value that air pressure density controller is detected is less than preset pressure value, detects that the air pressure is low and close
Whether the normally-closed contact of lock relay disconnects；If the normally-closed contact of the low locking relay of the air pressure disconnects, the air pressure is determined
Low locking fault；
Or, detect whether the voltage of the dc source is abnormal, and the whether loose contact of detection voltage connection circuit；
If the electric voltage exception of the dc source or the loose contact of voltage link loop, determine the D. C. power source breakdown.
Alternatively, described according to second preset detection order each part in the described second region to be detected is examined
Survey, the trouble point in the described second region to be detected is determined, including：
Detect the on/off switch controlling switch whether fault；
If the on/off switch controlling switch fault, the on/off switch controlling switch is defined as trouble point；If described conjunction is divided
The non-fault of lock controlling switch, detects distant place change-over switch whether fault on the spot；
If distant place change-over switch fault on the spot, by the distant place, change-over switch is defined as trouble point on the spot, if described
A distant place on the spot change-over switch non-fault when, detect the microcomputer protecting device whether fault；
If during the microcomputer protecting device fault, determine the microcomputer protecting device for trouble point.
Alternatively, the whether loose contact of the wiring of the on/off switch controlling switch, contact is detected, if on/off switch control
The wiring of switch, poor contact of contacts, determine the on/off switch controlling switch fault；
Or, the distant place contact of change-over switch, wiring whether loose contact on the spot is detected, if the distant place turns on the spot
Contact or the wire contacts for changing switching circuitry are bad, determine distant place change-over switch fault on the spot；
Or, detect whether element corresponding with sub-gate circuit damages and whether wiring connects in the microcomputer protecting device
Tactile bad, if any one component wear corresponding with sub-gate circuit or any one place's wire contacts in the microcomputer protecting device
Bad, determine the microcomputer protecting device fault.
A kind of trouble shoot device of breaker open operation electric loop, is applied to breaker open operation electric loop, the dress
Put including：
Red light detection circuit is monitored, separating brake behaviour is not responded for working as the switching winding in the breaker open operation electric loop
When making, detection breaker closing position monitors whether red light is lighted；
First region to be detected determines circuit, for when the breaker closing position monitors that red light is non-lit up, determining
Circuit region comprising rectifier power source operation panel, the normally opened auxiliary contact of breaker, switching winding, the low locking of air pressure and dc source
For the first region to be detected；
Fisrt fault point determines circuit, for presetting detection order to each in the described first region to be detected according to first
Part detected, determines the trouble point in the described first region to be detected；
Second region to be detected determines circuit, for when the breaker closing position monitors that red light is lighted, determining bag
Change-over switch, the circuit region of microcomputer protecting device are the second region to be detected on the spot for controlling switch containing on/off switch, a distant place；
Second trouble point determines circuit, for presetting detection order to each in the described second region to be detected according to second
Part detected, determines the trouble point in the described second region to be detected.
Alternatively, the Fisrt fault point determines circuit, including：
Rectifier power source operation panel detects circuit, for detecting rectifier power source operation panel whether fault；
First cue circuit, if for the rectifier power source operation panel fault, pointing out will be true for the rectifier power source operation panel
It is set to trouble point；
Normally opened auxiliary contact detects circuit, if for the non-fault of the rectifier power source operation panel, detects that breaker is normally opened
Auxiliary contact whether fault；
Second cue circuit, if for the normally opened auxiliary contact fault of the breaker, pointing out will be normally opened for the breaker auxiliary
Adjuvant grafting point is defined as trouble point；
Switching winding detects circuit, if for the non-fault of the normally opened auxiliary contact of the breaker, detects the switching winding
Whether fault；
3rd cue circuit, if for the switching winding fault, points out for the switching winding to be defined as trouble point；
The low locking of air pressure detects circuit, if for the non-fault of the switching winding, detects whether the low locking of the air pressure is former
Barrier；
4th cue circuit, if for the low locking fault of the air pressure, points out for low for air pressure locking to be defined as fault
Point；
Direct current power source voltage detects circuit, if for the non-fault of the low locking of the air pressure, detecting the electricity of the dc source
Whether pressure is abnormal；
5th cue circuit, if for the electric voltage exception of the dc source, the dc source is determined by prompting
For trouble point；
Connection circuit detects circuit, if not abnormal for the voltage of the dc source, detects first area to be detected
Whether the connection circuit in domain is abnormal；
6th cue circuit, if for the connection circuit exception in the described first region to be detected, points out described first
Connection circuit in region to be detected is defined as trouble point.
Alternatively, the dc source operation panel detection circuit, normally opened auxiliary contact detection circuit, switching winding detection electricity
Road, the low locking detection circuit of air pressure and connection circuit detection circuit are universal meter or voltmeter；
The direct current power source voltage detection circuit is voltmeter；
First cue circuit, the second cue circuit, the 3rd cue circuit, the 4th cue circuit, the 5th cue circuit,
6th cue circuit is indicator lamp or indicating meter.
Alternatively, the on/off switch controlling switch detects circuit, for detecting the on/off switch controlling switch whether fault；
7th cue circuit, if for the on/off switch controlling switch fault, pointing out will be true for the on/off switch controlling switch
It is set to trouble point；
Change-over switch detects circuit on the spot in a distant place, if for the non-fault of the on/off switch controlling switch, detects the distant place
Change-over switch whether fault on the spot；
8th cue circuit, if for distant place change-over switch fault on the spot, by the distant place, change-over switch is true on the spot
It is set to trouble point；
Microcomputer protecting device detects circuit, if for the distant place on the spot change-over switch non-fault when, detect the microcomputer
Protection device whether fault；
9th cue circuit, if during for the microcomputer protecting device fault, points out to determine that the microcomputer protecting device is
Trouble point.
Alternatively, the shutting-brake control switch detection circuit, a distant place on the spot change-over switch detection circuit and Microcomputer Protection dress
It is universal meter or voltmeter to put detection circuit；
7th cue circuit, the 8th cue circuit and the 9th cue circuit are indicator lamp or indicating meter.
The technical scheme that embodiment of the disclosure is provided can include following beneficial effect：
The method that the application is provided, when breaker open operation electric loop breaks down, can be first depending on breaker
Closing position monitor red light light situation, determine two big regions to be detected：First region to be detected and second to be detected
Region, then in each region to be detected, can detect in each region to be detected according to the detection order for setting again
Each part failure condition.As the method is in detection, the high part of preferential detection rate of breakdown, so in detection event
During barrier, can quick, the efficient localization of faults.Therefore, using the trouble shoot method, quickly fault can be positioned,
It is that follow-up maintenance and maintenance are provided and greatly helped, is effectively shortened the time of failture evacuation.
It should be appreciated that above general description and detailed description hereinafter are only exemplary and explanatory, not
The disclosure can be limited.
Description of the drawings
Accompanying drawing herein is merged in specification and constitutes the part of this specification, shows the enforcement for meeting the application
Example, and be used for together with specification explaining the principle of the application.
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for technology description is had to be briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without having to pay creative labor, can also obtain other accompanying drawings according to these accompanying drawings.
The elementary diagram of the breaker open operation electric loop that Fig. 1 is provided for the application；
A kind of flow process of the trouble shoot method of breaker open operation electric loop that Fig. 2 is provided for the embodiment of the present application is illustrated
Figure；
Fig. 3 is the schematic flow sheet of S103 in Fig. 1；
Fig. 4 is the schematic flow sheet of S105 in Fig. 1；
A kind of structural representation of the trouble shoot device of breaker open operation electric loop that Fig. 5 is provided for the embodiment of the present application
Figure.
Specific embodiment
In order that those skilled in the art more fully understand the technical scheme in the application, below in conjunction with the application reality
The accompanying drawing in example is applied, the technical scheme in the embodiment of the present application is clearly and completely described, it is clear that described enforcement
Example is only some embodiments of the present application, rather than whole embodiments.Based on the embodiment in the application, this area is common
The every other embodiment obtained under the premise of creative work is not made by technical staff, should all belong to the application protection
Scope.
The elementary diagram of the breaker open operation electric loop that Fig. 1 is provided for the application.
As shown in figure 1, in figure includes：Separating brake relay coil TBJ and its self-sustaining contact；Closing position supervisory relay
Coil HWJ and its normal opened contact；Closing position monitors red light HR (on the switch board door face board of switch cubicle)；Switching winding
TQ；On/off switch controlling switch 1KK, the separating brake contact 5,6 of on/off switch controlling switch；Distant place change-over switch 1KSH on the spot；A distant place is just
The contact of sub-gate circuit on the spot 3,4 of ground change-over switch；The distant place sub-gate circuit contact 1,2 of distant place change-over switch on the spot；A distant place is divided
Lock relay tip YTJ；The normally opened auxiliary contact QF of breaker；Trip protection exit relay contact BTJ；The hard pressing plate of trip protection
1LP2；Density controller MTK and its normal opened contact；Auxiliary reclay coil 1ZJ and its normal opened contact；The low locking relay of air pressure
Coil 2YJJ and its normally-closed contact；B1, B2, B3, B4 are binding post corresponding with sub-gate circuit on rectified current source plate.
In operation work, gas density controller MTK (not shown in figure 1) is used for detecting SF6 in breaker breaker
Whether gas leakage, when the SF6 gases did escape in breaker, pressure is persistently reduced to the low block action setting value of air pressure
During 0.4MPa (gas rated pressure is 0.5MPa under normal circumstances), the normally opened contact closure of MTK, auxiliary reclay coil 1ZJ
Energising, its normally opened contact closure；So that the relay coil 2YJJ energising of the low locking of air pressure in microcomputer protecting device, its air pressure
The relay normally-closed contact of low locking disconnects, and then disconnects sub-gate circuit.Realize the separating brake blocking function to breaker.
Aforementioned be brake division loop of circuit breaker in SF6 gas leakage, how sub-gate circuit to be disconnected, with to breaker realize protect
Shield.When sub-switching operation is carried out, working method is as follows：
Select " sub-switching operation on the spot ", when by a distant place, change-over switch 1KSH is switched to " with regard to status " on the spot, i.e. in Fig. 1 just
Ground sub-gate circuit contact 3 and 4 closes, separating brake contact 5 in then rotating on/off switch controlling switch 1KK to " sub-gate position ", i.e. Fig. 1
With 6 closures.So, positive supply+kM just can power transmission to the 1nC2 in microcomputer protecting device, then again power transmission to separating brake relay line
Enclose TBJ and to 1nC4, then ((in figure is not due to breaker before sub-switching operation on the spot through breaker auxiliary normally opened contact QF
Illustrate) position is being closed, so now 1 and the 2 of breaker auxiliary normally opened contact QF close), then power transmission is operated to rectifier power source
Plate, switching winding TQ, through the normally-closed contact of the relay 2YJJ of the low locking of air pressure, finally to negative supply-kM.In aforementioned each unit
If part is all working properly, then switching winding TQ obtains electric, its electromagnetic actuation, in the presence of operating mechanism, and then causes disconnected
Separating brake realized by road device.
But if the connection line fault between aforementioned elements or element, then breaker finally will be unable to realize dividing
Lock.
For this purpose, the embodiment of the present application provides a kind of trouble shoot method of breaker open operation electric loop, as Fig. 2 institute
Show, be the schematic flow sheet of the trouble shoot method of breaker open operation electric loop.
As shown in Fig. 2 the method is comprised the following steps.
When the switching winding in the breaker open operation electric loop does not respond sub-switching operation, S101：Detection breaker
Closing position monitors whether red light is lighted.
When the breaker closing position monitors that red light is non-lit up, execution step S102；When the breaker closing position
Supervision red light is put when lighting, execution step S104.
S102：Determine comprising rectifier power source operation panel, the normally opened auxiliary contact of breaker, switching winding, the low locking of air pressure and
The circuit region of dc source is the first region to be detected.
After step s 102, execution step 103.
S103：Detection order is preset according to first each part in the described first region to be detected is detected, determine
The trouble point gone out in the described first region to be detected.
In the embodiment of the present application, as shown in figure 3, step S103 may comprise steps of.
S201：Detection rectifier power source operation panel whether fault.
The step can detect on rectifier power source operation panel each connection plug corresponding with sub-gate circuit whether loose contact,
When any one connection plug loose contact corresponding with sub-gate circuit on rectifier power source operation panel, you can determine that rectifier power source is grasped
Make plate fault.As shown in figure 1, each connection plug corresponding with sub-gate circuit is respectively on rectifier power source operation panel：B1、B2、B3
And B4.
In concrete operations, the two ends of each connection plug that can be on rectification manipulation power plate can be connected with an inspection
Survey instrument, using these instrumentations, such as voltmeter or universal meter etc., detect whether each connection plug is energized, work as energising
When, represent that connection plug contact is good, when connection plug is not powered on, that is, represent connection plug loose contact；Detect when adopting
During instrument, connection plug whether loose contact, can be represented using the pointer of instrumentation or reading.
If the rectifier power source operation panel fault, S202：The rectifier power source operation panel is defined as trouble point.
If the non-fault of the rectifier power source operation panel, S203:The normally opened auxiliary contact of detection breaker whether fault.
The step can detect the wiring whether loose contact of the normally opened auxiliary contact of the breaker, and test described disconnected
Whether device normally opened auxiliary contact in road closes well.
Detection mode about loose contact, it is seen that the detection mode in abovementioned steps S201, will not be described here.Separately
Outward, whether the normally opened auxiliary contact of test breaker closes well, can in the following ways, on the normally opened auxiliary contact of breaker
Closure driving means are provided with, and normally opened for breaker auxiliary contact is connected with instrumentation, in detection, it is possible to use closure
Normally opened for breaker auxiliary contact is closed by driving means, then detects the normally opened auxiliary of the breaker after closure by instrumentation
Whether contact turns on, if conducting, illustrates that the normally opened auxiliary contact closure of breaker is good, otherwise, illustrates that breaker is normally opened auxiliary
Adjuvant grafting point cannot be closed.
If the wire contacts of the normally opened auxiliary contact of the breaker are bad or cannot close, determine that the breaker is normally opened auxiliary
Adjuvant grafting point failure.
If the normally opened auxiliary contact fault of the breaker, S204：Normally opened for breaker auxiliary contact is defined as fault
Point.
If the non-fault of the normally opened auxiliary contact of the breaker, S205：Detect the switching winding whether fault.
The step can detect the connector lug whether loose contact of switching winding, and whether test the resistance of switching winding
Abnormal, wherein, about the detection mode of loose contact, it is seen that the detection mode in abovementioned steps S201, will not be described here.
In addition, whether the resistance of test switching winding is abnormal, can be measured using resistance measuring instrument, when separating brake line
Circle burns out or situations such as switching winding is overheated, is likely to cause the resistance of switching winding change occur, normally using front,
The standard resistance of switching winding can be first recorded, then after the resistance of switching winding is obtained using resistance measuring instrument measurement, can
To be compared two resistances by comparator, model is preset if measuring difference between the resistance and standard resistance for obtaining and exceeding
Enclose, it is determined that the resistance of switching winding occurs abnormal.
If the connector lug loose contact of the switching winding or resistance exception, the switching winding fault is determined.
If the switching winding fault, S206：The switching winding is defined as trouble point.
If the non-fault of the switching winding, S207：Detect the low locking of the air pressure whether fault.
The step can detect the normally-closed contact of the low locking relay of air pressure whether normal work, specially：When air pressure is close
When degree controller (not shown) detects the pressure value of SF6 gas less than preset pressure value, the low locking relay of air pressure is judged
Whether the normally-closed contact of device disconnects.In concrete operations, can be in the normally-closed contact two ends of air pressure low locking relay connection electricity
Pressure table or other instrumentations, when air pressure density controller detects pressure value less than preset pressure value, the low locking of air pressure continues
Whether the normally-closed contact of electrical equipment disconnects, and can indicate result by the numeral on instrumentation or pointer.
If the fault of the low locking of detection air pressure, S208：Low for air pressure locking is defined as trouble point.
If the non-fault of the low locking of the air pressure, S209：Detect whether the dc source is abnormal.
In this step, can detect whether the voltage of dc source is abnormal, or, whether detection voltage connection circuit connects
Touch bad.Specifically, in two ends connection voltmeter and the comparator of dc source, judging current voltage whether in predeterminated voltage
In threshold range, if current voltage is in the range of predetermined voltage threshold, voltage is normal.Otherwise, electric voltage exception.With regard to electricity
Crimping line loop, each connector lug two ends connection voltmeter that can be in each loop or other instrumentations, measure loop
In connector lug whether disconnect, if off, it is determined that loose contact.
If dc source exception, S210:Dc source is defined as trouble point.
If dc source is not abnormal, S211：Detect whether the connection circuit in the first region to be detected is abnormal.
In step, voltage can be connected using all connector lug two ends of the connection circuit in the first region to be detected
Table or other instrumentations, detect by these instrument whether connector lug disconnects, and disconnect if there are any one connector lug,
Then determine the connection circuit exception in the first region to be detected.
If the connection circuit exception in the first region to be detected, S212：Will be true for the connection circuit in the first region to be detected
It is set to trouble point.Otherwise, terminate flow process.
S104：Determine comprising on/off switch controlling switch, a distant place on the spot change-over switch, microcomputer protecting device circuit region be
Second region to be detected.
After step s 104, S105 is executed.
S105：Detection order is preset according to second each part in the described second region to be detected is detected, determine
The trouble point gone out in the described second region to be detected.
In the embodiment of the present application, as shown in figure 4, step S105 may comprise steps of.
S301：Detect the on/off switch controlling switch whether fault.
In this step, can be using the wiring of the detection on/off switch controlling switch, the contact whether side of loose contact
Detecting on/off switch controlling switch whether fault, concrete operations can be formula：Connect in wiring, contact in on/off switch controlling switch
Voltmeter or other instrumentations is connect, and the wiring of on/off switch controlling switch is judged by the numeral of the instruction of these instrument whether
Disconnect, and whether contact disconnects.When the wiring of on/off switch switch disconnects, the wire contacts of on/off switch controlling switch are determined not
Good, or, when the contact of on/off switch switch disconnects, determine the poor contact of contacts of on/off switch controlling switch.Any one connects
Touch bad all it is considered that on/off switch controlling switch fault.
If the on/off switch controlling switch fault, S302：The on/off switch controlling switch is defined as trouble point.
If the non-fault of the on/off switch controlling switch, S303：Detect distant place change-over switch whether fault on the spot.
In this step, can be come using the contact of change-over switch, the wiring whether loose contact on the spot of the detection distant place
Judge distant place change-over switch whether fault on the spot, concrete operations mode may refer to the mode of connection of the description in step S301,
Will not be described here.
When a distant place on the spot any one contact in change-over switch loop or wire contacts bad, determine that the distant place turns on the spot
Change switch fault.
If distant place change-over switch fault on the spot, S304：By the distant place, change-over switch is defined as trouble point on the spot.
If the distant place on the spot change-over switch non-fault when, S305：Detect the microcomputer protecting device whether fault.
In this step, whether can be damaged using element corresponding with sub-gate circuit in the detection microcomputer protecting device
And wiring whether loose contact, judge distant place change-over switch whether fault on the spot.Concrete operations mode can also be by connecting
Connect the mode of instrumentation to detect, will not be described here.When corresponding with sub-gate circuit any in the microcomputer protecting device
One component wear or any one place's wire contacts bad, determine the microcomputer protecting device fault.
If during the microcomputer protecting device fault, S306：Determine the microcomputer protecting device for trouble point.Otherwise, terminate
Flow process.
When power system is short-circuited fault, the tripping operation exit relay BTJ inside microcomputer protecting device obtains electric, and which is normal
Junction closure is opened, but switching winding TQ fails energized action, cause breaker to be bypassed the immediate leadership tripping operation, cause fault outage expanded range.?
During trouble shoot, answer whether the hard pressing plate 1LP2 of check protection tripping operation puts into operation first, check whether its both sides wiring is connected firmly, its
The disconnecting switch of secondary cut-off breaker both sides, close breaker, checks that breaker closing position monitors whether red light is lighted.If point
Bright, then check binding post and the hard pressing plate 1LP2 of trip protection, the direct current positive electricity such as 1nC9,1nC3,1nC4 of microcomputer protecting device
Whether the link circuit, element between source be normal.If non-lit up, according to the first region to be detected of aforesaid determination；According to
One presets detection order detects to each part in the described first region to be detected, determines the described first region to be detected
Interior trouble point.
The method that the application is provided, when breaker open operation electric loop breaks down, can be first depending on breaker
Closing position monitor red light light situation, determine two big regions to be detected：First region to be detected and second to be detected
Region, then in each region to be detected, can detect in each region to be detected according to the detection order for setting again
Each part failure condition.As the method is in detection, the high part of preferential detection rate of breakdown, so in detection event
During barrier, can quick, the efficient localization of faults.Therefore, technical staff quickly can enter to fault according to the trouble shoot method
Row positioning, is that follow-up maintenance and maintenance are provided and greatly helped, is effectively shortened the time of failture evacuation.
On the basis of preceding method embodiment, present invention also provides a kind of fault of breaker open operation electric loop is looked into
Look for device.
A kind of structural representation of the trouble shoot device of breaker open operation electric loop that Fig. 5 is provided for the embodiment of the present application
Figure.
The device is applied to breaker open operation electric loop, as shown in figure 5, described device includes：
Red light detection circuit 11 is monitored, separating brake is not responded for working as the switching winding in the breaker open operation electric loop
During operation, detection breaker closing position monitors whether red light is lighted.
In the embodiment of the present application, monitor that red light detection circuit 11 can be photo resistance or photosensitive sensor, monitor
Red light detection circuit 11 can be arranged on the neighbouring position that breaker closing position monitors red light, when breaker closing position monitors
When red light is lighted, photo resistance or photosensitive sensor can be produced corresponding electric signal by the change of illumination；When non-lit up, light
Illumination invariant suffered by quick resistance or photosensitive sensor, enters without resulting from the electric signal for lighting correlation.
First region to be detected determines circuit 12, for when the breaker closing position monitor red light non-lit up when, really
Surely include the circuit region of rectifier power source operation panel, the normally opened auxiliary contact of breaker, switching winding, the low locking of air pressure and dc source
Domain is the first region to be detected；
Fisrt fault point determines circuit 13, for presetting detection order in the described first region to be detected according to first
Each part detected, determines the trouble point in the described first region to be detected；
Second region to be detected determines circuit 14, for when the breaker closing position monitors that red light is lighted, determining
Comprising on/off switch controlling switch, a distant place on the spot change-over switch, microcomputer protecting device circuit region be the second region to be detected；
Second trouble point determines circuit 15, for presetting detection order in the described second region to be detected according to second
Each part detected, determines the trouble point in the described second region to be detected.
Alternatively, in one embodiment of the application, the Fisrt fault point determines circuit, including：
Rectifier power source operation panel detects circuit, for detecting rectifier power source operation panel whether fault；
First cue circuit, if for the rectifier power source operation panel fault, pointing out will be true for the rectifier power source operation panel
It is set to trouble point；
Normally opened auxiliary contact detects circuit, if for the non-fault of the rectifier power source operation panel, detects that breaker is normally opened
Auxiliary contact whether fault；
Second cue circuit, if for the normally opened auxiliary contact fault of the breaker, pointing out will be normally opened for the breaker auxiliary
Adjuvant grafting point is defined as trouble point；
Switching winding detects circuit, if for the non-fault of the normally opened auxiliary contact of the breaker, detects the switching winding
Whether fault；
3rd cue circuit, if for the switching winding fault, points out for the switching winding to be defined as trouble point；
The low locking of air pressure detects circuit, if for the non-fault of the switching winding, detects whether the low locking of the air pressure is former
Barrier；
4th cue circuit, if for the low locking fault of the air pressure, points out for low for air pressure locking to be defined as fault
Point；
Direct current power source voltage detects circuit, if for the non-fault of the low locking of the air pressure, detecting the electricity of the dc source
Whether pressure is abnormal；
5th cue circuit, if for the electric voltage exception of the dc source, the dc source is determined by prompting
For trouble point；
Connection circuit detects circuit, if not abnormal for the voltage of the dc source, detects first area to be detected
Whether the connection circuit in domain is abnormal；
6th cue circuit, if for the connection circuit exception in the described first region to be detected, points out described first
Connection circuit in region to be detected is defined as trouble point.
Alternatively, in one embodiment of the application,
The dc source operation panel detection circuit, normally opened auxiliary contact detection circuit, switching winding detection circuit, air pressure
Low locking detection circuit and connection circuit detection circuit are universal meter or voltmeter；
The direct current power source voltage detection circuit is voltmeter；
First cue circuit, the second cue circuit, the 3rd cue circuit, the 4th cue circuit, the 5th cue circuit,
6th cue circuit is indicator lamp or indicating meter.
In this application, illustrate by taking switching winding detection circuit as an example, can connect at the wiring two ends of switching winding
A universal meter is connect, using the connector lug whether loose contact of universal meter detection switching winding, and tests the switching winding
Resistance whether abnormal, specifically may refer to the description of relevant detection switching winding in preceding method, will not be described here.Separately
Outward, when the resistance that universal meter detects switching winding is abnormal, it is specifically as follows：The resistance for detecting and predetermined threshold value are carried out
Relatively, if the resistance for detecting is more than predetermined threshold value, then the 3rd cue circuit can using shown numeral, light or
Pointer indicating this result, if conversely, the resistance for detecting is not more than predetermined threshold value, then the 3rd cue circuit can keep
Constant, it is also possible to be indicated using shown numeral or light or indicator lamp, but the mode for indicating and resistance are more than presetting threshold
The mode of value is different.
In the embodiment of the present application, voltmeter and universal meter are all the most basic circuit detection equipment in this area, right
In the occasions such as detection voltage, electric current or resistance are needed, those of ordinary skill in the art can know each instrumentation above-mentioned
Connected mode, will not be described here.In addition, indicator lamp or indicating meter, are all to be indicated by change, such as：Light
Light on and off, or indicating meter numeral change etc., in concrete application, those of ordinary skill in the art also know its connection
Mode, will not be described here.
Alternatively, in one embodiment of the application, second trouble point determines circuit, including：
On/off switch controlling switch detects circuit, for detecting the on/off switch controlling switch whether fault；
7th cue circuit, if for the on/off switch controlling switch fault, pointing out will be true for the on/off switch controlling switch
It is set to trouble point；
Change-over switch detects circuit on the spot in a distant place, if for the non-fault of the on/off switch controlling switch, detects the distant place
Change-over switch whether fault on the spot；
8th cue circuit, if for distant place change-over switch fault on the spot, by the distant place, change-over switch is true on the spot
It is set to trouble point；
Microcomputer protecting device detects circuit, if for the distant place on the spot change-over switch non-fault when, detect the microcomputer
Protection device whether fault；
9th cue circuit, if during for the microcomputer protecting device fault, points out to determine that the microcomputer protecting device is
Trouble point.
Alternatively, in one embodiment of the application, the shutting-brake control switch detection circuit, a distant place are changed out on the spot
It is universal meter or voltmeter to close detection circuit and microcomputer protecting device detection circuit；
7th cue circuit, the 8th cue circuit and the 9th cue circuit are indicator lamp or indicating meter.
In the embodiment of the present application, voltmeter and universal meter are all the most basic circuit detection equipment in this area, right
In the occasions such as detection voltage or resistance are needed, those of ordinary skill in the art can know the connection side of each instrumentation above-mentioned
Formula, will not be described here.In addition, indicator lamp or indicating meter, are all to be indicated by change, such as：The light on and off of light,
Or the numeral change of indicating meter etc., in concrete application, those of ordinary skill in the art also know its connected mode,
This repeats no more.
It should be noted that herein, the relational terms of such as " first " and " second " or the like are used merely to one
Individual entity or operation are made a distinction with another entity or operation, and are not necessarily required or implied these entities or operate it
Between exist any this actual relation or order.And, term " including ", "comprising" or its any other variant are intended to
Cover including for nonexcludability, so that a series of process including key elements, method, article or equipment not only include those
Key element, but also other key elements including being not expressly set out, or also include for this process, method, article or set
Standby intrinsic key element.In the absence of more restrictions, the key element for being limited by sentence "including a ...", it is not excluded that
Also there is other identical element in process, method, article or the equipment for including the key element.
The above is only the specific embodiment of the application, makes skilled artisans appreciate that or realizing this Shen
Please.Multiple modifications to these embodiments will be apparent to one skilled in the art, as defined herein
General Principle can be realized in the case of without departing from spirit herein or scope in other embodiments.Therefore, the application
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope for causing.
Claims (10)
1. a kind of trouble shoot method of breaker open operation electric loop, it is characterised in that be applied to breaker open operation and electrically return
Road, methods described include：
When the switching winding in the breaker open operation electric loop does not respond sub-switching operation, detection breaker closing position prison
Whether light depending on red light；
When the breaker closing position monitors that red light is non-lit up, determine normally opened auxiliary comprising rectifier power source operation panel, breaker
The circuit region of adjuvant grafting point, switching winding, the low locking of air pressure and dc source is the first region to be detected；According to the first default inspection
The each part that surveys in the first region to be detected described in time ordered pair detected, determines the fault in the described first region to be detected
Point；
When the breaker closing position monitors that red light is lighted, determine and changed out comprising on/off switch controlling switch, a distant place on the spot
Close, the circuit region of microcomputer protecting device is the second region to be detected；Detection order is preset according to second to be checked to described second
Survey region in each part detected, determine the trouble point in the described second region to be detected.
2. method according to claim 1, it is characterised in that described preset detection order according to first and treat to described first
Each part in detection zone detected, determines the trouble point in the described first region to be detected, including：
Detection rectifier power source operation panel whether fault；
If the rectifier power source operation panel fault, the rectifier power source operation panel is defined as trouble point；If the rectifier power source
The non-fault of operation panel, then the normally opened auxiliary contact of detection breaker whether fault；
If the normally opened auxiliary contact fault of the breaker, normally opened for breaker auxiliary contact is defined as trouble point；If described
The non-fault of the normally opened auxiliary contact of breaker, then detect the switching winding whether fault；
If the switching winding fault, the switching winding is defined as trouble point；If the non-fault of the switching winding, detects
The low locking of the air pressure whether fault；
If the low locking fault of the air pressure, low for air pressure locking is defined as trouble point；If the non-fault of the low locking of the air pressure,
Then detect whether the dc source is abnormal；
If the dc source exception, the dc source is defined as trouble point；If the dc source is not abnormal, detect
Whether the connection circuit in first region to be detected is abnormal；
If the connection circuit exception in first region to be detected, the connection circuit in the described first region to be detected is determined
For trouble point.
3. method according to claim 2, it is characterised in that
Each connection plug corresponding with sub-gate circuit whether loose contact on detection rectifier power source operation panel；If described returned with separating brake
Road any one connection plug loose contact corresponding, determines the rectifier power source operation panel fault；
Or, the wiring whether loose contact of the normally opened auxiliary contact of the breaker is detected, and it is normally opened to test the breaker
Whether auxiliary contact closes well；If the wire contacts of the normally opened auxiliary contact of the breaker are bad or cannot close, institute is determined
State the normally opened auxiliary contact fault of breaker；
Or, detect the connector lug whether loose contact of the switching winding, and whether test the resistance of the switching winding
Abnormal；If the connector lug loose contact of the switching winding or resistance exception, the switching winding fault is determined；
Or, when the pressure value that air pressure density controller is detected is less than preset pressure value, detect that the low locking of the air pressure continues
Whether the normally-closed contact of electrical equipment disconnects；If the normally-closed contact of the low locking relay of the air pressure disconnects, determine that the air pressure is low and close
Lock fault；
Or, detect whether the voltage of the dc source is abnormal, and the whether loose contact of detection voltage connection circuit；If institute
Electric voltage exception or the loose contact of voltage link loop of dc source is stated, determines the D. C. power source breakdown.
4. method according to claim 1, it is characterised in that described preset detection order according to second and treat to described second
Each part in detection zone detected, determines the trouble point in the described second region to be detected, including：
Detect the on/off switch controlling switch whether fault；
If the on/off switch controlling switch fault, the on/off switch controlling switch is defined as trouble point；If the on/off switch control
The system non-fault of switch, detects distant place change-over switch whether fault on the spot；
If distant place change-over switch fault on the spot, by the distant place, change-over switch is defined as trouble point on the spot, if the distant place
On the spot during the non-fault of change-over switch, the microcomputer protecting device whether fault is detected；
If during the microcomputer protecting device fault, determine the microcomputer protecting device for trouble point.
5. method according to claim 4, it is characterised in that
The whether loose contact of the wiring of the on/off switch controlling switch, contact is detected, if the wiring of the on/off switch controlling switch,
Poor contact of contacts, determines the on/off switch controlling switch fault；
Or, the distant place contact of change-over switch, wiring whether loose contact on the spot is detected, if the distant place is changed out on the spot
Contact or the wire contacts for closing loop are bad, determine distant place change-over switch fault on the spot；
Or, detect whether element corresponding with sub-gate circuit damages and whether wiring contacts not in the microcomputer protecting device
Good, if any one component wear corresponding with sub-gate circuit or any one place's wire contacts are not in the microcomputer protecting device
Good, determine the microcomputer protecting device fault.
6. a kind of trouble shoot device of breaker open operation electric loop, it is characterised in that be applied to breaker open operation and electrically return
Road, described device include：
Red light detection circuit is monitored, sub-switching operation is not responded for working as the switching winding in the breaker open operation electric loop
When, detection breaker closing position monitors whether red light is lighted；
First region to be detected determines circuit, for when the breaker closing position monitors that red light is non-lit up, determination includes
The circuit region of the normally opened auxiliary contact of rectifier power source operation panel, breaker, switching winding, the low locking of air pressure and dc source is the
One region to be detected；
Fisrt fault point determines circuit, for presetting detection order to each part in the described first region to be detected according to first
Detected, determined the trouble point in the described first region to be detected；
Second region to be detected determines circuit, for when the breaker closing position monitors that red light is lighted, determining comprising conjunction
Change-over switch, the circuit region of microcomputer protecting device are the second region to be detected on the spot for separating brake controlling switch, a distant place；
Second trouble point determines circuit, for presetting detection order to each part in the described second region to be detected according to second
Detected, determined the trouble point in the described second region to be detected.
7. device according to claim 6, it is characterised in that the Fisrt fault point determines circuit, including：
Rectifier power source operation panel detects circuit, for detecting rectifier power source operation panel whether fault；
First cue circuit, if for the rectifier power source operation panel fault, points out to be defined as the rectifier power source operation panel
Trouble point；
Normally opened auxiliary contact detects circuit, if for the non-fault of the rectifier power source operation panel, detects the normally opened auxiliary of breaker
Contact whether fault；
Second cue circuit, if for the normally opened auxiliary contact fault of the breaker, points out to connect normally opened for breaker auxiliary
Point is defined as trouble point；
Switching winding detects circuit, if for the non-fault of the normally opened auxiliary contact of the breaker, whether detects the switching winding
Fault；
3rd cue circuit, if for the switching winding fault, points out for the switching winding to be defined as trouble point；
The low locking of air pressure detects circuit, if for the non-fault of the switching winding, detects the low locking of the air pressure whether fault；
4th cue circuit, if for the low locking fault of the air pressure, points out for low for air pressure locking to be defined as trouble point；
Direct current power source voltage detects circuit, if for the non-fault of the low locking of the air pressure, detects that the voltage of the dc source is
No exception；
5th cue circuit, if for the electric voltage exception of the dc source, the dc source is defined as event by prompting
Barrier point；
Connection circuit detects circuit, if not abnormal for the voltage of the dc source, detects in first region to be detected
Connection circuit whether abnormal；
6th cue circuit, if for the connection circuit exception in the described first region to be detected, points out to be checked by described first
The connection circuit that surveys in region is defined as trouble point.
8. device according to claim 7, it is characterised in that
Dc source operation panel detection circuit, normally opened auxiliary contact detection circuit, switching winding detection circuit, air pressure is low closes
Lock detection circuit and connection circuit detection circuit are universal meter or voltmeter；
The direct current power source voltage detection circuit is voltmeter；
First cue circuit, the second cue circuit, the 3rd cue circuit, the 4th cue circuit, the 5th cue circuit, the 6th
Cue circuit is indicator lamp or indicating meter.
9. device according to claim 6, it is characterised in that second trouble point determines circuit, including：
On/off switch controlling switch detects circuit, for detecting the on/off switch controlling switch whether fault；
7th cue circuit, if for the on/off switch controlling switch fault, points out to be defined as the on/off switch controlling switch
Trouble point；
Change-over switch detects circuit on the spot in a distant place, if for the non-fault of the on/off switch controlling switch, detects the distant place on the spot
Change-over switch whether fault；
8th cue circuit, if for distant place change-over switch fault on the spot, by the distant place, change-over switch is defined as on the spot
Trouble point；
Microcomputer protecting device detects circuit, if for the distant place on the spot change-over switch non-fault when, detect the Microcomputer Protection
Device whether fault；
9th cue circuit, if during for the microcomputer protecting device fault, points out to determine that the microcomputer protecting device is fault
Point.
10. device according to claim 9, it is characterised in that
Change-over switch detection circuit and microcomputer protecting device detection circuit are on the spot for the shutting-brake control switch detection circuit, a distant place
Universal meter or voltmeter；
7th cue circuit, the 8th cue circuit and the 9th cue circuit are indicator lamp or indicating meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611102145.8A CN106483423B (en) | 2016-12-05 | 2016-12-05 | Fault searching method and device for breaker opening electric loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611102145.8A CN106483423B (en) | 2016-12-05 | 2016-12-05 | Fault searching method and device for breaker opening electric loop |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106483423A true CN106483423A (en) | 2017-03-08 |
| CN106483423B CN106483423B (en) | 2023-06-30 |
Family
ID=58275885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611102145.8A Active CN106483423B (en) | 2016-12-05 | 2016-12-05 | Fault searching method and device for breaker opening electric loop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106483423B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108287305A (en) * | 2018-01-20 | 2018-07-17 | 山东钢铁集团日照有限公司 | A kind of high voltage circuit breaker closing control loop breakdown judge lookup method |
| CN108492893A (en) * | 2018-02-07 | 2018-09-04 | 中国原子能科学研究院 | A kind of electric heating system fault handling method |
| CN109149527A (en) * | 2017-06-16 | 2019-01-04 | 中国石油天然气股份有限公司 | Control circuit of circuit breaker and method for detecting control loop fault of circuit breaker |
| CN109270444A (en) * | 2018-08-28 | 2019-01-25 | 国网新疆电力有限公司伊犁供电公司 | Breaker control circuit is from loop device |
| CN110161404A (en) * | 2019-05-23 | 2019-08-23 | 首钢京唐钢铁联合有限责任公司 | High-voltage circuit breaker fault detection method and device and electronic equipment |
| CN111398800A (en) * | 2020-03-18 | 2020-07-10 | 山东钢铁股份有限公司 | Circuit breaker fault finding method |
| CN111580011A (en) * | 2020-04-28 | 2020-08-25 | 深圳供电局有限公司 | Method, device and equipment for locating disconnection fault of circuit breaker control circuit |
| CN112698189A (en) * | 2019-10-22 | 2021-04-23 | 国家电网有限公司 | Circuit breaker fault detection method and system |
| CN113092997A (en) * | 2021-03-29 | 2021-07-09 | 南方电网数字电网研究院有限公司 | Circuit breaker monitoring circuit and low-voltage protection device |
| CN113092997B (en) * | 2021-03-29 | 2024-08-27 | 南方电网数字电网研究院有限公司 | Circuit breaker monitoring circuit and low-voltage protection device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201877814U (en) * | 2010-12-15 | 2011-06-22 | 中国神华能源股份有限公司 | Controller for circuit breaker |
| CN103837826A (en) * | 2014-03-18 | 2014-06-04 | 国家电网公司 | System and method for identification of faulty region of high-voltage switch operating circuit |
| CN104332961A (en) * | 2014-11-04 | 2015-02-04 | 国家电网公司 | Burning proof protection device for switch opening and closing coil |
| CN104635112A (en) * | 2015-01-30 | 2015-05-20 | 山东钢铁股份有限公司 | Method and device for finding fault point of circuit breaker closing control loop |
| CN105305620A (en) * | 2015-10-22 | 2016-02-03 | 山东钢铁股份有限公司 | Disconnection monitoring system of breaker closing control circuit |
| CN205059292U (en) * | 2015-10-22 | 2016-03-02 | 中铁十六局集团铁运工程有限公司 | Railway electric locomotive owner breaker open operation fault detection device |
| CN206223898U (en) * | 2016-12-05 | 2017-06-06 | 山东钢铁股份有限公司 | A kind of trouble shoot device of breaker open operation electric loop |
-
2016
- 2016-12-05 CN CN201611102145.8A patent/CN106483423B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201877814U (en) * | 2010-12-15 | 2011-06-22 | 中国神华能源股份有限公司 | Controller for circuit breaker |
| CN103837826A (en) * | 2014-03-18 | 2014-06-04 | 国家电网公司 | System and method for identification of faulty region of high-voltage switch operating circuit |
| CN104332961A (en) * | 2014-11-04 | 2015-02-04 | 国家电网公司 | Burning proof protection device for switch opening and closing coil |
| CN104635112A (en) * | 2015-01-30 | 2015-05-20 | 山东钢铁股份有限公司 | Method and device for finding fault point of circuit breaker closing control loop |
| CN105305620A (en) * | 2015-10-22 | 2016-02-03 | 山东钢铁股份有限公司 | Disconnection monitoring system of breaker closing control circuit |
| CN205059292U (en) * | 2015-10-22 | 2016-03-02 | 中铁十六局集团铁运工程有限公司 | Railway electric locomotive owner breaker open operation fault detection device |
| CN206223898U (en) * | 2016-12-05 | 2017-06-06 | 山东钢铁股份有限公司 | A kind of trouble shoot device of breaker open operation electric loop |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109149527A (en) * | 2017-06-16 | 2019-01-04 | 中国石油天然气股份有限公司 | Control circuit of circuit breaker and method for detecting control loop fault of circuit breaker |
| CN109149527B (en) * | 2017-06-16 | 2024-01-30 | 中国石油天然气股份有限公司 | Circuit breaker control circuit and method for detecting faults of circuit breaker control loop |
| CN108287305A (en) * | 2018-01-20 | 2018-07-17 | 山东钢铁集团日照有限公司 | A kind of high voltage circuit breaker closing control loop breakdown judge lookup method |
| CN108492893A (en) * | 2018-02-07 | 2018-09-04 | 中国原子能科学研究院 | A kind of electric heating system fault handling method |
| CN109270444A (en) * | 2018-08-28 | 2019-01-25 | 国网新疆电力有限公司伊犁供电公司 | Breaker control circuit is from loop device |
| CN109270444B (en) * | 2018-08-28 | 2023-12-05 | 国网新疆电力有限公司伊犁供电公司 | Circuit breaker control loop self-loop device |
| CN110161404A (en) * | 2019-05-23 | 2019-08-23 | 首钢京唐钢铁联合有限责任公司 | High-voltage circuit breaker fault detection method and device and electronic equipment |
| CN112698189B (en) * | 2019-10-22 | 2023-08-15 | 国家电网有限公司 | Breaker fault detection method and system |
| CN112698189A (en) * | 2019-10-22 | 2021-04-23 | 国家电网有限公司 | Circuit breaker fault detection method and system |
| CN111398800A (en) * | 2020-03-18 | 2020-07-10 | 山东钢铁股份有限公司 | Circuit breaker fault finding method |
| CN111580011A (en) * | 2020-04-28 | 2020-08-25 | 深圳供电局有限公司 | Method, device and equipment for locating disconnection fault of circuit breaker control circuit |
| CN113092997A (en) * | 2021-03-29 | 2021-07-09 | 南方电网数字电网研究院有限公司 | Circuit breaker monitoring circuit and low-voltage protection device |
| CN113092997B (en) * | 2021-03-29 | 2024-08-27 | 南方电网数字电网研究院有限公司 | Circuit breaker monitoring circuit and low-voltage protection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106483423B (en) | 2023-06-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106483423A (en) | A kind of trouble shoot method and device of breaker open operation electric loop | |
| US8014111B2 (en) | Method and device for preventing fire caused by defects in electric circuits and arrangements | |
| JP2001045652A (en) | Arc detector | |
| CN102077433A (en) | Circuit breaker with improved re-closing functionality | |
| CN108089119B (en) | Secondary circuit electrification detection method and system for relay protection secondary equipment of transformer substation | |
| CN106291342A (en) | The on off state detection method of a kind of protective relaying device and device | |
| CN106019137A (en) | Switch state detecting circuit of protective relaying device | |
| CN108270283A (en) | Prepared auto restart control system | |
| CN205595754U (en) | Earth -leakage protector with automated inspection function | |
| CN211293018U (en) | Novel ammeter case is prevented fires device | |
| CN206223898U (en) | A kind of trouble shoot device of breaker open operation electric loop | |
| CN208723536U (en) | A kind of electromotor integrated protection system for extractive equipment | |
| CN105281300B (en) | A kind of real-time distributed monitoring system | |
| CN207381953U (en) | Arc, earth leakage | |
| CN110426625A (en) | A kind of computer operation case for substation | |
| CN104701821B (en) | A kind of SF6Breaker monitors system | |
| CA2346732C (en) | A protective relay-based monitoring system of dc power within an electric power substation | |
| CN204424881U (en) | A kind of SF 6circuit breaker monitoring system | |
| CN107526013A (en) | Control method, device and the medium of a kind of high-voltage isulation detection of locomotive | |
| TWI687011B (en) | High-voltage circuit breaker panel control device for preventing reverse power transmission | |
| KR100953684B1 (en) | Distrtibuting board cabinet panel for tunnel lamp controlling with capability of detecting function loose contact and arc | |
| CN105552855A (en) | Method for preventing single-CT saturation of 3/2 wiring mode from causing distance protection misoperation | |
| CN105735786B (en) | A kind of band LED shows the central controlled lock automatic locking device of self-checking function | |
| CN211317364U (en) | Proximity switch off-line detection device | |
| CN108923375A (en) | Wireline inspection, coincidence and off device and method after a kind of tripping of line switching |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |