CN108957232A - A kind of distribution net work earthing fault detection processing and its operating method - Google Patents
A kind of distribution net work earthing fault detection processing and its operating method Download PDFInfo
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- CN108957232A CN108957232A CN201810790354.9A CN201810790354A CN108957232A CN 108957232 A CN108957232 A CN 108957232A CN 201810790354 A CN201810790354 A CN 201810790354A CN 108957232 A CN108957232 A CN 108957232A
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- transmitting terminal
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- gps
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
-
- 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
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- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Locating Faults (AREA)
Abstract
The present invention relates to power distribution network technical field of safety protection equipment, and disclose a kind of distribution net work earthing fault detection processing and its operating method, including detection case and failure induction system, the bottom surface of the detection box cavity is fixedly installed with control cabinet, the left and right sides of the control cabinet pass through cable respectively and are electrically connected with electric pressure converter and current converter, the another side of the current converter and electric pressure converter is electrically connected with support plate, and the other end of the support plate extends to the outside of detection case and is fixedly installed with GPS signal transmitting terminal.The distribution net work earthing fault detection processing and its operating method, it is cooperated by setting GPS and GPS signal transmitting terminal, it ensure that the stabilization of information transmitting, it avoids one-phase earthing failure in electric distribution network position and is located under complex environment and be difficult to the problem of passing fault message, it ensure that the stabilization of information transmission significantly, subsequent maintenance is facilitated, the practicability of this method is significantly increased.
Description
Technical field
The present invention relates to power distribution network technical field of safety protection equipment, specially a kind of distribution net work earthing fault detection processing
And its operating method.
Background technique
Power distribution network, which refers to from power transmission network or regional power plant, receives electric energy, distribute or is pressed on the spot by distribution facility voltage by
Grade distributes to the power network of all types of user, is by overhead transmission line, cable, shaft tower, distribution transformer, disconnecting switch, reactive compensation
The compositions such as device and some affiliated facilities, the network of important distribution electric energy effect is played in power network.
With being continuously increased for power distribution network cable run, once power distribution network single-phase earthing breaks down, due to power distribution network point
Cloth is extensive, and the either determination of abort situation or subsequent detection is all very difficult, at present to singlephase earth fault fault point
Localization method be broadly divided into two classes, active localization method and passive type localization method, active Fault Locating Method be
Signal specific is injected to system after line failure, failure point is determined by the distribution of detection institute's Injection Signal in systems
Set, passive type Fault Locating Method be then using the feature of voltage and current signal produced by failure itself, Design Orientation algorithm,
It determines position of failure point, either active localization method or passive type localization method, is directly transmitted using signal, face
To the power distribution network environment in complicated geographical location, it is frequently present of the problem of lacking signal, it is extremely difficult to guarantee that fault-signal accurately transmits
It goes out, the failure for causing power distribution network single-phase earthing to occur is difficult to quickly be found and repaired, therefore needs to design a kind of efficient
Distribution net work earthing fault detection and its operating method.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of distribution net work earthing fault detection processing and its operating method, tools
The advantages that standby detection fast and stable and failed transmission signal efficiently and accurately, solves either active localization method or passive
Formula localization method is directly transmitted using signal, and the power distribution network environment in face of complicated geographical location is frequently present of shortage signal
The problem of, it is extremely difficult to guarantee that fault-signal accurately transfers out, the failure for causing power distribution network single-phase earthing to occur is difficult to quick
It was found that and repair the problem of.
(2) technical solution
To realize above-mentioned detection fast and stable and failed transmission signal efficiently and accurately purpose, the invention provides the following technical scheme:
A kind of distribution net work earthing fault detection processing and its operating method, including detection case and failure induction system, in the detection case
The bottom surface of chamber is fixedly installed with control cabinet, and the left and right sides of the control cabinet pass through cable respectively and are electrically connected with voltage turn
The another side of parallel operation and current converter, the current converter and electric pressure converter is electrically connected with support plate, described
The other end of support plate extends to the outside of detection case and is fixedly installed with GPS signal transmitting terminal, the top electricity of the control cabinet
Property is connected with stabiliser bar, and the both ends of the stabiliser bar are electrically connected with conducting wire, and the conducting wire extends to the outside of detection case, institute
The first resistor silk of stabiliser bar being externally wrapped on the left of control cabinet is stated, being externally wrapped with for the stabiliser bar is located at control
Second resistance silk on the right side of case.
The output end signal of the failure induction system is connected with satellite failure signal data receiving unit, the satellite event
The output end of barrier signal data receiving unit is electrically connected with satellite data transmitting terminal, the output end of the satellite data transmitting terminal
Signal is connected with ground power grid maintenance system receiving end, and the output end of the ground power grid maintenance system receiving end is electrically connected with
The output end signal of ground power grid maintenance system transmitting terminal, the ground power grid maintenance system transmitting terminal is connected with communication apparatus.
Preferably, the communication apparatus includes central processing unit, and the output end and input terminal of the central processing unit are electric
Property be connected with speech communication unit, image information receiving end and text information receiving end, the output end electricity of the central processing unit
Property is connected with data display screen.
Preferably, the failure induction system includes control cabinet, and the output end of the control cabinet electrically has current converter
And electric pressure converter, the current converter, the output end of the control switch are electrically connected with a GPS, a GPS
Output end and the input terminal of GPS signal transmitting terminal be electrically connected, the output end of the electric pressure converter opens with another control
The input terminal of pass is electrically connected, and the output end of another control switch and the input terminal of another GPS are electrically connected, another
The output end of a GPS and another described GPS signal transmitting terminal are electrically connected, the output end of the GPS signal transmitting terminal
It is electrically connected with satellite failure signal data receiving unit.
Preferably, the front of the control cabinet is fixedly installed with observing apparatus, and the bottom of the control cabinet is fixedly installed with
Positioned at the pedestal of detection case inner chamber bottom surface.
Preferably, operating method is as follows, comprising the following steps:
Step 1: two stabiliser bars to be mounted on to any two sides of power distribution network earthing position first, then it will test case and be embedded in and match
Near power grid earthing position；
Step 2: when power distribution network earthing position damages, according to the variation of connecting position of wires electric current, so that first resistor silk
Shift voltage appearance more becomes, so that control cabinet receives the data that stabiliser bar transmits, to influence current converter according to variation
Or electric pressure converter, then its internal control switch is opened by current converter or electric pressure converter, so that GPS transmitting letter
Number, then fault location information is transferred to by satellite failure signal data receiving unit by GPS signal transmitting terminal；
Step 3: according to the received data information of satellite failure signal data receiving unit, satellite data transmitting terminal is by fault bit
Confidence breath is transferred to ground power grid maintenance system receiving end, allows ground power grid maintenance system transmitting terminal by fault bit confidence
Breath passes to communication apparatus；
Step 4: maintenance personal according on communication apparatus on data display screen pass through speech communication unit, image information receiving end
With the received information in text information receiving end, breakdown maintenance place is rushed to, processing is repaired to the failure at power distribution network ground connection.
Preferably, the model MQACH-A of the central processing unit, the ground power grid maintenance system receiving end receives letter
Breath passes through warning lamp figure operating personnel.
Preferably, the inside of the current converter and electric pressure converter is equipped with Separation control device, and Separation control
Device and the input terminal of control switch are electrically connected.
(3) beneficial effect
Compared with prior art, the present invention provides a kind of distribution net work earthing fault detection processing and its operating method, have with
It is lower the utility model has the advantages that
1, the distribution net work earthing fault detection processing and its operating method are guaranteed by setting first resistor silk and second resistance silk
The stabilization of control cabinet builtin voltage, so that deviation, the electric current inside control cabinet once occurs in the current or voltage of device contact
Change with voltage, so that the control switch inside electric pressure converter and support plate perceives rapidly fault message, greatly increases
The efficiency for having added the detection failure of the device, avoid detection process slowly causes one-phase earthing failure in electric distribution network to damage the time
Powerup issue that is too long and influencing full wafer power distribution network, increases the safety of the device.
2, the distribution net work earthing fault detection processing and its operating method, it is mutual by setting GPS and GPS signal transmitting terminal
Cooperation ensure that the stabilization of information transmitting, avoids one-phase earthing failure in electric distribution network position and is located under complex environment that be difficult to will be former
The problem of barrier information passes, ensure that the stabilization of information transmission significantly, facilitates subsequent maintenance, significantly increase this
The practicability of method.
3, the distribution net work earthing fault detection processing and its operating method are received by speech communication unit, image information
End and text information receiving end, are transferred to rapidly data display screen for fault message, greatly facilitate maintenance personal by leading to
The place for interrogating device-aware one-phase earthing failure in electric distribution network increases the efficiency of maintenance personal's maintenance, reduces because of power distribution network
Singlephase earth fault bring economic loss.
Detailed description of the invention
Fig. 1 is distribution net work earthing fault detection processing system block diagram of the present invention；
Fig. 2 is failure induction system block diagram of the present invention；
Fig. 3 is communication apparatus internal structure block diagram of the present invention；
Fig. 4 is schematic structural view of the invention.
In figure: 1, detection case；2, control cabinet；3, stabiliser bar；4, first resistor silk；5, second resistance silk；6, conducting wire；7, electric
Cable；8, current converter；9, electric pressure converter；10, support plate；11, GPS signal transmitting terminal；12, failure induction system；13,
Pedestal；14, satellite data transmitting terminal；15, ground power grid maintenance system receiving end；16, ground power grid maintenance system transmitting terminal；
17, communication apparatus；18, control switch；19,GPS；20, satellite failure signal data receiving unit；21, central processing unit；22,
Data display screen；23, speech communication unit；24, image information receiving end；25, text information receiving end.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1-4, a kind of distribution net work earthing fault detection processing and its operating method, including detection case 1 and failure
Induction system 12, the bottom surface of 1 inner cavity of detection case are fixedly installed with control cabinet 2, and the left and right sides of control cabinet 2 pass through cable respectively
Line 7 is electrically connected with electric pressure converter 9 and current converter 8, and the another side of current converter 8 and electric pressure converter 9 is electric
Property is connected with support plate 10, and the other end of support plate 10 extends to the outside of detection case 1 and is fixedly installed with GPS signal transmitting terminal
11, the top of control cabinet 2 is electrically connected with stabiliser bar 3, and the both ends of stabiliser bar 3 are electrically connected with conducting wire 6, and conducting wire 6 extends to
The outside of detection case 1, stabiliser bar 3 are externally wrapped with the first resistor silk 4 positioned at 2 left side of control cabinet, and the outside of stabiliser bar 3 twines
It is wound with the second resistance silk 5 for being located at 2 right side of control cabinet.
The output end signal of failure induction system 12 is connected with satellite failure signal data receiving unit 20, failure induction system
System 12 includes control cabinet 2, and the front of control cabinet 2 is fixedly installed with observing apparatus, and the bottom of control cabinet 2, which is fixedly installed with, is located at inspection
The pedestal 13 of 1 inner chamber bottom surface of measuring tank, the output end of control cabinet 2 electrically have current converter 8 and electric pressure converter 9, electric current conversion
Device 8, the output end of control switch 18 are electrically connected with a GPS19, the output end and GPS signal transmitting terminal 11 of a GPS19
Input terminal be electrically connected, the input terminal of the output end of electric pressure converter 9 and another control switch 18 is electrically connected, another
The input terminal of the output end of control switch 18 and another GPS19 are electrically connected, the output end of another GPS19 and another
GPS signal transmitting terminal 11 is electrically connected, and the output end of GPS signal transmitting terminal 11 is electrically connected with the reception of satellite failure signal data
The output end of unit 20, satellite failure signal data receiving unit 20 is electrically connected with satellite data transmitting terminal 14, satellite data
The output end signal of transmitting terminal 14 is connected with ground power grid maintenance system receiving end 15, ground power grid maintenance system receiving end 15
Output end is electrically connected with ground power grid maintenance system transmitting terminal 16, the output end signal of ground power grid maintenance system transmitting terminal 16
It is connected with communication apparatus 17, communication apparatus 17 includes central processing unit 21, the model MQA52CH/A of central processing unit 21, ground
Face power grid maintenance system receiving end 15 receives information by warning lamp figure operating personnel, the output end of central processing unit 21 with it is defeated
Enter end and is electrically connected with speech communication unit 23, image information receiving end 24 and text information receiving end 25, central processing unit
21 output end is electrically connected with data display screen 22.
Operating method is as follows, comprising the following steps:
Step 1: two stabiliser bars 3 to be mounted on to any two sides of power distribution network earthing position first, then it will test case 1 and be embedded in
Near power distribution network earthing position；
Step 2: when power distribution network earthing position damages, according to the variation of 6 junction electric current of conducting wire, so that first resistor
Silk 4 shift voltages appearance more becomes, so that control cabinet 2 receives the data that stabiliser bar 3 transmits, turns to influence electric current according to variation
The inside of parallel operation 8 or electric pressure converter 9, current converter 8 and electric pressure converter 9 is equipped with Separation control device, and is spaced control
Device processed and the input terminal of control switch 18 are electrically connected, then open its inside by current converter 8 or electric pressure converter 9
Fault location information so that GPS19 emits signal, then is transferred to satellite event by GPS signal transmitting terminal 11 by control switch 18
Hinder signal data receiving unit 20；
Step 3: satellite data transmitting terminal 14 will be former according to the received data information of satellite failure signal data receiving unit 20
Barrier location information is transferred to ground power grid maintenance system receiving end 15, allows ground power grid maintenance system transmitting terminal 16 will be former
Barrier location information passes to communication apparatus 17；
Step 4: maintenance personal according on communication apparatus 17 on data display screen 22 pass through speech communication unit 23, image information
The received information in receiving end 24 and text information receiving end 25, rushes to breakdown maintenance place, to the failure at power distribution network ground connection into
Row maintenance process.
In conclusion the distribution net work earthing fault detection processing and its operating method, at the distribution net work earthing fault detection
Reason and its operating method guarantee the stabilization of 2 builtin voltage of control cabinet by setting first resistor silk 4 and second resistance silk 5, so that
Once there is deviation in the current or voltage of device contact, and the electric current and voltage inside control cabinet 2 change, so that voltage turns
Control switch 18 inside parallel operation 9 and support plate 10 perceives rapidly fault message, significantly increases the detection failure of the device
Efficiency, avoid detection process slowly causes one-phase earthing failure in electric distribution network damage overlong time and influence full wafer power distribution network
Powerup issue, increase the safety of the device；It is cooperated, be ensure that by setting GPS19 and GPS signal transmitting terminal 11
The stabilization of information transmitting, avoids one-phase earthing failure in electric distribution network position and is located under complex environment and be difficult to pass out fault message
The problem of going ensure that the stabilization of information transmission significantly, facilitate subsequent maintenance, significantly increase the practical of this method
Property；By speech communication unit 23, image information receiving end 24 and text information receiving end 25, fault message is transferred to rapidly
Data display screen 22 greatly facilitates the place that maintenance personal perceives one-phase earthing failure in electric distribution network by communication apparatus 17,
The efficiency for increasing maintenance personal's maintenance reduces because of one-phase earthing failure in electric distribution network bring economic loss；Solves nothing
It by being active localization method or passive type localization method, is directly transmitted using signal, the more complicated geographical locations in face
Power distribution network environment is frequently present of the problem of lacking signal, it is extremely difficult to guarantee that fault-signal accurately transfers out, lead to power distribution network list
The failure that mutually ground connection occurs is difficult to the problem of quickly being found and repaired.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of distribution net work earthing fault detection processing, including detection case (1) and failure induction system (12), it is characterised in that:
The bottom surface of detection case (1) inner cavity is fixedly installed with control cabinet (2), and the left and right sides of the control cabinet (2) pass through respectively
Cable (7) is electrically connected with electric pressure converter (9) and current converter (8), the current converter (8) and electric pressure converter
(9) another side is electrically connected with support plate (10), and the other end of the support plate (10) extends to the outer of detection case (1)
Portion is simultaneously fixedly installed with GPS signal transmitting terminal (11), is electrically connected with stabiliser bar (3) at the top of the control cabinet (2), described steady
The both ends of fixed pole (3) are electrically connected with conducting wire (6), and the conducting wire (6) extends to the outside of detection case (1), the stabiliser bar
(3) the first resistor silk (4) being externally wrapped on the left of control cabinet (2), being externally wrapped with for stabiliser bar (3) are located at
Second resistance silk (5) on the right side of control cabinet (2).
2. the output end signal of the failure induction system (12) is connected with satellite failure signal data receiving unit (20), described
The output end of satellite failure signal data receiving unit (20) is electrically connected with satellite data transmitting terminal (14), the satellite data
The output end signal of transmitting terminal (14) is connected with ground power grid maintenance system receiving end (15), and the ground power grid maintenance system connects
The output end of receiving end (15) is electrically connected with ground power grid maintenance system transmitting terminal (16), the ground power grid maintenance system transmitting
The output end signal at end (16) is connected with communication apparatus (17).
3. a kind of distribution net work earthing fault detection processing according to claim 1, it is characterised in that: the communication apparatus
It (17) include central processing unit (21), the output end and input terminal of the central processing unit (21) are electrically connected with speech communication
Unit (23), image information receiving end (24) and text information receiving end (25), the output end electricity of the central processing unit (21)
Property is connected with data display screen (22).
4. a kind of distribution net work earthing fault detection processing according to claim 1, it is characterised in that: failure induction system
System (12) includes control cabinet (2), and the output end of the control cabinet (2) electrically has current converter (8) and electric pressure converter (9),
The output end of the current converter (8), the control switch (18) is electrically connected with a GPS(19), a GPS
(19) output end and the input terminal of GPS signal transmitting terminal (11) are electrically connected, the output end of the electric pressure converter (9) and another
The input terminal of one control switch (18) is electrically connected, the output end and another GPS of another control switch (18)
(19) input terminal is electrically connected, another described GPS(19) output end and another described GPS signal transmitting terminal (11) electricity
Property connection, the output end of the GPS signal transmitting terminal (11) is electrically connected with satellite failure signal data receiving unit (20).
5. a kind of distribution net work earthing fault detection processing according to claim 1, it is characterised in that: the control cabinet (2)
Front be fixedly installed with observing apparatus, the bottom of the control cabinet (2) is fixedly installed with positioned at detection case (1) inner chamber bottom surface
Pedestal (13).
6. according to claim 1 to a kind of operating method of distribution net work earthing fault detection processing described in 4, it is characterised in that:
It sequentially includes the following steps:
Step 1: two stabiliser bars (3) are mounted on any two sides of power distribution network earthing position first, then it will test case (1) in advance
It is embedded near power distribution network earthing position；
Step 2: when power distribution network earthing position damages, according to the variation of conducting wire (6) junction electric current, so that the first electricity
Resistance silk (4) shift voltage appearance more becomes, so that control cabinet (2) receives the data that stabiliser bar (3) transmits, thus according to variation shadow
Current converter (8) or electric pressure converter (9) are rung, then its inside is opened by current converter (8) or electric pressure converter (9)
Control switch (18), so that GPS(19) transmitting signal, then be transferred to fault location information by GPS signal transmitting terminal (11)
Satellite failure signal data receiving unit (20)；
Step 3: according to satellite failure signal data receiving unit (20) received data information, satellite data transmitting terminal (14)
Fault location information is transferred to ground power grid maintenance system receiving end (15), so that ground power grid maintenance system transmitting terminal (16)
Fault location information can be passed to communication apparatus (17)；
Step 4: maintenance personal according on communication apparatus (17) on data display screen (22) by speech communication unit (23), figure
As information receiving end (24) and text information receiving end (25) received information, breakdown maintenance place is rushed to, power distribution network is grounded
The failure at place repairs processing.
7. a kind of operating method of distribution net work earthing fault detection processing according to claim 5, it is characterised in that: described
The model MQA52CH-A of central processing unit (21), the ground power grid maintenance system receiving end (15) receive information and pass through police
Show lamp body type operating personnel.
8. a kind of operating method of distribution net work earthing fault detection processing according to claim 5, it is characterised in that: described
The inside of current converter (8) and electric pressure converter (9) is equipped with Separation control device, and Separation control device and control switch
(18) input terminal is electrically connected.
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| CN201810790354.9A CN108957232A (en) | 2018-07-18 | 2018-07-18 | A kind of distribution net work earthing fault detection processing and its operating method |
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| CN110783896A (en) * | 2019-09-25 | 2020-02-11 | 昆明理工大学 | Distribution network single-phase grounding protection method based on weak fault active and passive joint detection |
| CN115291046A (en) * | 2022-09-30 | 2022-11-04 | 南京鼎研电力科技有限公司 | Power grid power distribution abnormity identification method based on power grid operation big data |
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Application publication date: 20181207 |