CN106841920B - The judgement of distribution line real time fail and Fault Locating Method - Google Patents
The judgement of distribution line real time fail and Fault Locating Method Download PDFInfo
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- CN106841920B CN106841920B CN201710067823.XA CN201710067823A CN106841920B CN 106841920 B CN106841920 B CN 106841920B CN 201710067823 A CN201710067823 A CN 201710067823A CN 106841920 B CN106841920 B CN 106841920B
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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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- 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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Abstract
The invention discloses a kind of judgement of distribution line real time fail and Fault Locating Methods, in Distribution Fault Location System, several track data collectors are interacted with network server, track data collector XCT (1) to XCT (N) upper limit alarm, then fault location is in XCT (N) to XCT (N+1)；Such as two or more same alarms, while centre-point earth equipment is not alarmed, then line fault type is short trouble；Distribution line real time fail judgement provided by the invention and Fault Locating Method, pass through the judgement alarmed track data collector, line transformer device data acquisition device, centre-point earth device data acquisition device, line-to-ground data collector, Location is accurately positioned and judges fault category, to improve malfunctioning node search efficiency, it reduces malfunctioning node and searches the time, reduce the human input amount for searching failure.
Description
Technical field
The present invention relates to a kind of power fault analysis technology more particularly to a kind of judgement of distribution line real time fail and failures
Localization method.
Background technique
In electric system, when distribution line breaks down, needs to find out failure in time and point reparation faulty line occurs, with
Restore normal power supply.Existing distribution line failure monitoring method is: at interval of a certain distance setting one on distribution line
A monitoring node, and one accident indicator is installed in each monitoring node, indicator is provided on accident indicator,
When monitoring node is in normal transmission state, the normal color of the indicator for displaying of accident indicator (such as white), when monitoring saves
When power transmission failure occurs for part of path belonging to point, the eye-catching waming color of the indicator for displaying of accident indicator (such as red) is patrolled
The operating condition of the affiliated part of path of monitoring node is judged by observing color shown by the indicator of accident indicator depending on personnel.
This distribution line failure monitoring method needs to put into a large amount of manpower fragment and searches malfunctioning node, and the lookup of malfunctioning node
The lookup time-consuming of low efficiency, malfunctioning node is also longer so that accident is affected after transmission line of electricity breaks down, power off time compared with
It is long.The present invention provides a kind of judgement of distribution line real time fail and Fault Locating Methods, pass through Distribution Fault Location System
Middle track data collector, line transformer device data acquisition device, centre-point earth device data acquisition device, line-to-ground data
Collector realizes distribution line real-time monitoring and breakdown judge and fault location with interacting for network server.
Summary of the invention
The present invention sentences the technical solution adopted is that providing a kind of distribution line real time fail to solve above-mentioned technical problem
Disconnected and Fault Locating Method, wherein method particularly includes:
1) in Distribution Fault Location System, several track data collector device XCT, several line transformer equipment
Data collector device XBT, centre-point earth equipment collector device ZCT, several line-to-ground data collector device XJCT with
Network server interaction；Network server terminal system will be monitored simultaneously on two Above Transmission Lines data collector device XCT
Limit alarm, the same alarm of line transformer device data acquisition device device XBT, centre-point earth equipment collector device ZCT is without report
It warns, line-to-ground data collector device XJCT alarm free, then track data collector device XCT (1) upper limit alarm, therefore route
Fault type is distribution line short；Track data collector XCT (1) to XCT (N) upper limit alarm, then fault location exists
Track data collector device XCT (N) to track data collector device XCT (N) plus 1 route fragment position；
2) in Distribution Fault Location System, several track data collector device XCT, several line transformer equipment
Data collector device XBT, centre-point earth equipment collector device ZCT, several line-to-ground data collector device XJCT with
Network server interaction；Network server terminal system will monitor two or more track data collector device XCT simultaneously
(N) phase shortage alarm or the alarm of line transformer device data acquisition device device XBT phase shortage, centre-point earth equipment collector device
ZCT alarm free, line-to-ground data collector device XJCT alarm free；Then track data collector device XCT (1) alarm free,
Phase shortage alarm after track data collector device XCT (N), line transformer device data acquisition device device XBT (1) is without report
Alert, phase shortage alarm after line transformer device data acquisition device device XBT (N), line fault type is distribution line broken string
Failure；Phase shortage alarm or line transformer device data acquisition device device XBT after track data collector device XCT (N)
(N) phase shortage alarm after, then fault location is in track data collector device XCT (N) to track data collector device XCT
(N) the route fragment position that subtracts 1；Or line transformer device data acquisition device device XBT (N) is to line transformer device data acquisition
Route fragment position that device device XBT (N) subtracts 1；
3) in Distribution Fault Location System, several track data collector device XCT, several line transformer equipment
Data collector device XBT, centre-point earth equipment collector device ZCT, several line-to-ground data collector device XJCT with
Network server interaction；Network server terminal system will monitor two or more track data collector device XCT simultaneously
Alarm, centre-point earth equipment collector device ZCT alarm, line-to-ground data collector device XJCT (M) alarm, then route event
Hindering type is that distribution line crosses over cable earth fault；Track data collector device XCT (1) is to track data collector device
XCT (N) upper limit alarm, while centre-point earth device data acquisition device device ZCT alarm, line-to-ground data collector device
XJCT (M) alarms (breaker unsuccessful reclosing, route continuous earth failure), then fault location is in line-to-ground data collector
The cable fault position section of device XJCT (M) point；
4) in Distribution Fault Location System, several track data collector device XCT, several line transformer equipment
Data collector device XBT, centre-point earth equipment collector device ZCT, several line-to-ground data collector device XJCT with
Network server interaction；Network server terminal system will monitor two Above Transmission Lines data collector device XCT reports simultaneously
It is alert, centre-point earth device data acquisition device device ZCT alarm, line transformer device data acquisition device device XBT alarm, route
It is grounded data collector device XJCT alarm free, then fault category is small resistance grounding system distribution line ground fault；Route
Data collector device XCT (1) arrives track data collector device XCT (N) upper limit alarm, then fault location is adopted in track data
Storage device XCT (N) plus 1 (track data collector device upper current limit is alarmed when line-to-ground resistance is smaller)；Or route number
It alarms according to collector device XCT (N) phase shortage, two or more phase shortage alarms, route become track data collector device XCT (N) afterwards
The alarm of depressor device data acquisition device device XBT (N) phase shortage, line transformer device data acquisition device device XBT (N) Hou Ertai
The alarm of above phase shortage, then fault location (route number when line-to-ground resistance is larger that subtracts 1 in track data collector device XCT (N)
It alarms according to collector device phase shortage)；
5) in Distribution Fault Location System, several track data collector device XCT, several line transformer equipment
Data collector device XBT, centre-point earth equipment collector device ZCT, several line-to-ground data collector device XJCT with
Network server interaction；Network server terminal system will be monitored simultaneously on two Above Transmission Lines data collector device XCT
Limit alarm, centre-point earth device data acquisition device ZCT alarm, line transformer device data acquisition device device XBT low-voltage report
The alarm of alert and phase shortage, line-to-ground data collector device XJCT do not alarm, then fault category is matched for arc suppression coil earthing system
Electric line ground fault；Track data collector device XCT (1) is to several track data collector device XCT (N) greater than percentage
It alarms than numerical value, then fault location is in track data collector device XCT (N) plus 1 (several track data collector device XCT
Alarm greater than percentages) or the alarm of track data collector device XCT (N) phase shortage, track data collector device XCT
(N) two or more phase shortages alarm afterwards, then fault location is in track data collector device XCT (N) (the track data collector that subtracts 1
Device XCT phase shortage alarm)；
6) in Distribution Fault Location System, several track data collector device XCT, several line transformer equipment
Data collector device XBT, centre-point earth equipment collector device ZCT, several line-to-ground data collector device XJCT with
Network server interaction；Network server terminal system will monitor that centre-point earth device data acquisition device device ZCT is reported simultaneously
Alert, line-to-ground data collector device XJCT (N) alarm, track data collector device XCT (1) to track data collector
Device XCT (N) alarm, line transformer device data acquisition device device XBT do not alarm, then fault category is that distribution line is direct
Formula arrester lightning stroke ground connection (this is the protection of distribution line instant earthing)；Track data collector device XCT (1) is to track data
Collector device XCT (N) upper limit alarm, centre-point earth equipment collector device ZCT alarm, line-to-ground data collector device
XJCT (N) alarm, then in line-to-ground data collector device XJCT (N) alarm point position, (this is distribution line to fault location
Moment line-to-ground protection)；
7) in Distribution Fault Location System, several track data collector device XCT, several line transformer equipment
Data collector device XBT, centre-point earth equipment collector device ZCT, several line-to-ground data collector device XJCT with
Network server interaction；Network server terminal system will real-time monitor line-to-ground data collector device XJCT (N) report
It is alert, track data collector device XCT alarm free, line transformer device data acquisition device device XBT alarm free, centre-point earth
Equipment collector device ZCT alarm free, then fault category is distribution line induction type arrester lightning stroke ground connection；Line-to-ground data
Collector device XJCT (N) alarm, then fault location is in the position line-to-ground data collector device XJCT (N)；
8) in Distribution Fault Location System, several track data collector device XCT, several line transformer equipment
Data collector device XBT, centre-point earth equipment collector device ZCT, several line-to-ground data collector device XJCT with
Network server interaction；Network server terminal system will real-time monitor line transformer device data acquisition device device XBT
(N) it alarms, track data collector device XCT alarm free, centre-point earth equipment collector device ZCT alarm free, line-to-ground
Data collector device XJCT alarm free, then fault category is distribution line transformer fault；Line transformer device data is adopted
Storage device XBT (N) alarm, then fault location is in route transformer equipment.
The present invention has the following beneficial effects with respect to the prior art:
By network server, fault location is realized according to the source of acquisition data, passes through several track data collectors
Device, line transformer device data acquisition device device, centre-point earth device data acquisition device device, the acquisition of line-to-ground data
Device device is interacted with network server, by track data collector device, line transformer device data acquisition device device,
The judgement that centre-point earth device data acquisition device device, line-to-ground data collector device are alarmed, route event is accurately positioned
Hinder position and judge fault category, to improve malfunctioning node search efficiency, reduces malfunctioning node and search the time, reduction is looked into
Look for the human input amount of failure.
Detailed description of the invention
Fig. 1 is the schematic diagram of Distribution Fault Location System.
Fig. 2 is the schematic diagram of Distribution Fault Location System.
Fig. 3 is the schematic diagram of route acquisition device.
Fig. 4 is the schematic diagram for being grounded acquisition device.
Fig. 5 is the schematic diagram of equipment acquisition device.
Fig. 6 is the schematic diagram of line facility current collecting device.
Specific embodiment
The technology of Distribution Fault Location System is described in detail in existing application scheme, specifically:
Including network server and multiple track data collector devices, line transformer device data acquisition device device,
Centre-point earth device data acquisition device device, line-to-ground data collector device；The centre-point earth device data acquisition device
Device includes ground connection data processing module, and the earth current mutual inductance for acquiring current signal on centre-point earth device line
Device；Centre-point earth device data processing module therein is interconnected by the communication module of data line and the present apparatus, and centre-point earth is set
Standby data processing module has data collection terminal mouth, and the output port of centre-point earth device current mutual inductor is connected to present apparatus ground connection
The earth current mutual inductor of the data collection terminal mouth of data processing module, each centre-point earth device data acquisition device device is pacified respectively
On the main transformer ground path of power distribution network.The line transformer device data acquisition device device includes at device data
Manage module, communication module, and the device current mutual inductor for acquiring route transformer equipment line current signal；Line therein
Road transformer equipment data processing module is interconnected by the communication module of data line and the present apparatus, at line transformer device data
Managing module, there is voltage data acquisition port and current data to acquire port, the output end of line transformer device current mutual inductor
Mouth is connected to the current data acquisition port of present apparatus device data processing module, each line transformer device data acquisition device device
The voltage data acquisition port of data processing module be coupled with the voltage digital of each distribution line transformer equipment of power distribution network
Signal output port is measured, the device current mutual inductor of each line transformer equipment acquisition device is separately mounted to each distribution of power distribution network
On line transformer output cable.The track data collector device includes three-phase data processing module, communication module, and is used
Threephase current transformer, three-phase data processing therein are acquired in the track data of track data acquisition three-phase line current signal
Module is interconnected by the communication module of data line and the present apparatus, and three-phase data processing module has data collection terminal mouth, three-phase electricity
The output port of current transformer is connected to the data collection terminal mouth of present apparatus three-phase data processing module, and the three of each three-phase acquisition device
Phase current mutual inductor is separately mounted to each three phase transmission line road of power distribution network.The line-to-ground data collector device includes line
Road is grounded data processing module, communication module, and the line-to-ground current transformer for acquiring route earth current signal,
In line-to-ground data processing module interconnected by the communication module of data line and the present apparatus, line-to-ground data processing module
With data collection terminal mouth, the output port of line-to-ground current transformer is connected to present apparatus line-to-ground data processing module
Data collection terminal mouth, the line-to-ground current transformer of each line-to-ground current collecting device are separately mounted to each route of power distribution network
On the ground path of ground connection, the communication module of each line-to-ground data collector device connects its perimeter circuit data collector dress
It sets, the communication module of line transformer device data acquisition device device；
Application scheme is to realize that failure is fixed according to the source of acquisition data using above-mentioned Distribution Fault Location System
Position, is adopted by several track data collector devices, line transformer device data acquisition device device, centre-point earth device data
Storage device, line-to-ground data collector device are interacted with network server, by track data collector device, route
Transformer equipment data collector device, centre-point earth device data acquisition device device, line-to-ground data collector device report
Alert judgement, Location is accurately positioned and judges fault category；
Wherein, XCT-1/XCT-N indicates one or N number of track data collector device；XBT-1/XBT-N indicates one
Or N number of line transformer device data acquisition device device；ZCT indicates centre-point earth device data acquisition device device；XJCT-M/
XJCT-N indicates one or N number of line-to-ground data collector device.
Specific judgment method are as follows:
1) in Distribution Fault Location System, several track data collector device XCT, several line transformer equipment
Data collector device XBT, centre-point earth equipment collector device ZCT, several line-to-ground data collector device XJCT with
Network server interaction；Network server terminal system will be monitored simultaneously on two Above Transmission Lines data collector device XCT
Limit alarm, the same alarm of line transformer device data acquisition device device XBT, centre-point earth equipment collector device ZCT is without report
It warns, line-to-ground data collector device XJCT alarm free, then track data collector device XCT (1) upper limit alarm, therefore route
Fault type is distribution line short；Track data collector XCT (1) to XCT (N) upper limit alarm, then fault location exists
Track data collector device XCT (N) to track data collector device XCT (N) plus 1 route fragment position；
2) in Distribution Fault Location System, several track data collector device XCT, several line transformer equipment
Data collector device XBT, centre-point earth equipment collector device ZCT, several line-to-ground data collector device XJCT with
Network server interaction；Network server terminal system will monitor two or more track data collector device XCT simultaneously
(N) phase shortage alarm or the alarm of line transformer device data acquisition device device XBT phase shortage, centre-point earth equipment collector device
ZCT alarm free, line-to-ground data collector device XJCT alarm free；Then track data collector device XCT (1) alarm free,
Phase shortage alarm after track data collector device XCT (N), line transformer device data acquisition device device XBT (1) is without report
Alert, phase shortage alarm after line transformer device data acquisition device device XBT (N), line fault type is distribution line broken string
Failure；Phase shortage alarm or line transformer device data acquisition device device XBT after track data collector device XCT (N)
(N) phase shortage alarm after, then fault location is in track data collector device XCT (N) to track data collector device XCT
(N) the route fragment position that subtracts 1；Or line transformer device data acquisition device device XBT (N) is to line transformer device data acquisition
Route fragment position that device device XBT (N) subtracts 1；
3) in Distribution Fault Location System, several track data collector device XCT, several line transformer equipment
Data collector device XBT, centre-point earth equipment collector device ZCT, several line-to-ground data collector device XJCT with
Network server interaction；Network server terminal system will monitor two or more track data collector device XCT simultaneously
Alarm, centre-point earth equipment collector device ZCT alarm, line-to-ground data collector device XJCT (M) alarm, then route event
Hindering type is that distribution line crosses over cable earth fault；Track data collector device XCT (1) is to track data collector device
XCT (N) upper limit alarm, while centre-point earth device data acquisition device device ZCT alarm, line-to-ground data collector device
XJCT (M) alarms (breaker unsuccessful reclosing, route continuous earth failure), then fault location is in line-to-ground data collector
The cable fault position section of device XJCT (M) point；
4) in Distribution Fault Location System, several track data collector device XCT, several line transformer equipment
Data collector device XBT, centre-point earth equipment collector device ZCT, several line-to-ground data collector device XJCT with
Network server interaction；Network server terminal system will monitor two Above Transmission Lines data collector device XCT reports simultaneously
It is alert, centre-point earth device data acquisition device device ZCT alarm, line transformer device data acquisition device device XBT alarm, route
It is grounded data collector device XJCT alarm free, then fault category is small resistance grounding system distribution line ground fault；Route
Data collector device XCT (1) arrives track data collector device XCT (N) upper limit alarm, then fault location is adopted in track data
Storage device XCT (N) plus 1 (track data collector device upper current limit is alarmed when line-to-ground resistance is smaller)；Or route number
It alarms according to collector device XCT (N) phase shortage, two or more phase shortage alarms, route become track data collector device XCT (N) afterwards
The alarm of depressor device data acquisition device device XBT (N) phase shortage, line transformer device data acquisition device device XBT (N) Hou Ertai
The alarm of above phase shortage, then fault location (route number when line-to-ground resistance is larger that subtracts 1 in track data collector device XCT (N)
It alarms according to collector device phase shortage)；
5) in Distribution Fault Location System, several track data collector device XCT, several line transformer equipment
Data collector device XBT, centre-point earth equipment collector device ZCT, several line-to-ground data collector device XJCT with
Network server interaction；Network server terminal system will be monitored simultaneously on two Above Transmission Lines data collector device XCT
Limit alarm, centre-point earth device data acquisition device ZCT alarm, line transformer device data acquisition device device XBT low-voltage report
The alarm of alert and phase shortage, line-to-ground data collector device XJCT do not alarm, then fault category is matched for arc suppression coil earthing system
Electric line ground fault；Track data collector device XCT (1) is to several track data collector device XCT (N) greater than percentage
It alarms than numerical value, then fault location is in track data collector device XCT (N) plus 1 (several track data collector device XCT
Alarm greater than percentages) or the alarm of track data collector device XCT (N) phase shortage, track data collector device XCT
(N) two or more phase shortages alarm afterwards, then fault location is in track data collector device XCT (N) (the track data collector that subtracts 1
Device XCT phase shortage alarm)；
6) in Distribution Fault Location System, several track data collector device XCT, several line transformer equipment
Data collector device XBT, centre-point earth equipment collector device ZCT, several line-to-ground data collector device XJCT with
Network server interaction；Network server terminal system will monitor that centre-point earth device data acquisition device device ZCT is reported simultaneously
Alert, line-to-ground data collector device XJCT (N) alarm, track data collector device XCT (1) to track data collector
Device XCT (N) alarm, line transformer device data acquisition device device XBT do not alarm, then fault category is that distribution line is direct
Formula arrester lightning stroke ground connection (this is the protection of distribution line instant earthing)；Track data collector device XCT (1) is to track data
Collector device XCT (N) upper limit alarm, centre-point earth equipment collector device ZCT alarm, line-to-ground data collector device
XJCT (N) alarm, then in line-to-ground data collector device XJCT (N) alarm point position, (this is distribution line to fault location
Moment line-to-ground protection)；
7) in Distribution Fault Location System, several track data collector device XCT, several line transformer equipment
Data collector device XBT, centre-point earth equipment collector device ZCT, several line-to-ground data collector device XJCT with
Network server interaction；Network server terminal system will real-time monitor line-to-ground data collector device XJCT (N) report
It is alert, track data collector device XCT alarm free, line transformer device data acquisition device device XBT alarm free, centre-point earth
Equipment collector device ZCT alarm free, then fault category is distribution line induction type arrester lightning stroke ground connection；Line-to-ground data
Collector device XJCT (N) alarm, then fault location is in the position line-to-ground data collector device XJCT (N)；
8) in Distribution Fault Location System, several track data collector device XCT, several line transformer equipment
Data collector device XBT, centre-point earth equipment collector device ZCT, several line-to-ground data collector device XJCT with
Network server interaction；Network server terminal system will real-time monitor line transformer device data acquisition device device XBT
(N) it alarms, track data collector device XCT alarm free, centre-point earth equipment collector device ZCT alarm free, line-to-ground
Data collector device XJCT alarm free, then fault category is distribution line transformer fault；Line transformer device data is adopted
Storage device XBT (N) alarm, then fault location is in route transformer equipment.
In a particular embodiment, as shown in Fig. 1:
No. 3 bars, No. 4 bar track data collector alarms, then fault location is in No. 4 bars and No. 5 bars, if No. 4 bar routes
The alarm of transformer equipment data collector, line-to-ground data collector device alarm free, centre-point earth equipment collector device
Alarm free, then fault type is short trouble；
Track data collector device phase shortage is alarmed after No. 3 bars, line transformer device data acquisition device after No. 3 bars
The alarm of device phase shortage, then fault location is in No. 3 bar track data collector devices to No. 2 bar track data collector device roads
Section；
No. 3 bar track data collector devices are to No. 4 bar track data collector device upper limit alarms, while centre-point earth
Device data acquisition device device ZCT alarm, the alarm of line-to-ground data collector device, breaker unsuccessful reclosing (permanent line
Road failure), then fault location is in line-to-ground data collector mounted point cable fault position section, centre-point earth equipment collector
Device alarm, the alarm of line-to-ground data collector device, line fault type are that distribution line crosses over cable earth fault.
Claims (1)
1. a kind of distribution line real time fail judgement and Fault Locating Method, it is characterised in that:
In Distribution Fault Location System, several track data collector device XCT, several line transformer device datas are adopted
Storage device XBT, centre-point earth equipment collector device ZCT, several line-to-ground data collector device XJCT and network take
Business device interaction；
1) network server terminal system will monitor two Above Transmission Lines data collector device XCT upper limit alarms, line simultaneously
The same alarm of road transformer equipment data collector device XBT, centre-point earth equipment collector device ZCT alarm free, route connect
Ground data collector device XJCT alarm free, then track data collector device XCT1 upper limit alarm, therefore line fault type is
Distribution line short；Track data collector XCT1 is to XCTN upper limit alarm, then fault location is in track data collector
Device XCTN to track data collector device XCTN adds 1 route fragment position；
2) network server terminal system will monitor two or more track data collector device XCTN phase shortage alarms simultaneously,
Or the alarm of line transformer device data acquisition device device XBT phase shortage, centre-point earth equipment collector device ZCT alarm free, line
Road is grounded data collector device XJCT alarm free；Then track data collector device XCT1 alarm free, track data collector
Phase shortage is alarmed after device XCTN, line transformer device data acquisition device device XBT1 alarm free, line transformer number of devices
It alarms according to phase shortage after collector device XBTN, line fault type is distribution line disconnection fault；Track data collector dress
Phase shortage is alarmed after setting after XCTN phase shortage alarm or line transformer device data acquisition device device XBTN, then fault location
In track data collector device XCTN to track data collector device XCTN subtract 1 route fragment position or line transformer equipment
Route fragment position that data collector device XBTN to line transformer device data acquisition device device XBTN subtracts 1；
3) network server terminal system will monitor two or more track data collector device XCT alarms, center simultaneously
Grounding apparatus collector device ZCT alarm, line-to-ground data collector device XJCTM alarm, then line fault type be with
Electric line crosses over cable earth fault；Track data collector device XCT1 is to track data collector device XCTN upper limit report
It is alert, at the same centre-point earth device data acquisition device device ZCT alarm, line-to-ground data collector device XJCTM alarm, open circuit
Device unsuccessful reclosing, route continuous earth failure, then cable of the fault location in line-to-ground data collector device XJCTM point
Abort situation section；
4) network server terminal system will monitor two Above Transmission Lines data collector device XCT alarms simultaneously, and center connects
Ground device data acquisition device device ZCT alarm, line transformer device data acquisition device device XBT alarm, line-to-ground data
Collector device XJCT alarm free, then fault category is small resistance grounding system distribution line ground fault；Track data acquisition
Device device XCT1 is to track data collector device XCTN upper limit alarm, then fault location is in track data collector device XCTN
Add 1, track data collector device upper current limit is alarmed when line-to-ground resistance is smaller；Or track data collector device XCTN
Phase shortage is alarmed, two or more phase shortages alarms after track data collector device XCTN, line transformer device data acquisition device dress
The alarm of XBTN phase shortage is set, two or more phase shortages are alarmed after line transformer device data acquisition device device XBTN, then fault location
Subtract 1 in track data collector device XCTN, track data collector device phase shortage is alarmed when line-to-ground resistance is larger；
5) network server terminal system will monitor two Above Transmission Lines data collector device XCT upper limit alarms simultaneously, in
Heart grounding apparatus data collector ZCT alarm, the alarm of line transformer device data acquisition device device XBT low-voltage and phase shortage report
Alert, line-to-ground data collector device XJCT does not alarm, then fault category is arc suppression coil earthing system distribution line ground connection
Failure；Track data collector device XCT1 to several track data collector device XCTN alarms greater than percentages, then
Fault location adds 1 in track data collector device XCTN, and several track data collector device XCT are greater than percentages report
Alert or track data collector device XCTN phase shortage is alarmed, two or more phase shortages alarms after track data collector device XCTN,
Then fault location subtracts 1 in track data collector device XCTN, the alarm of track data collector device XCT phase shortage；
6) network server terminal system will monitor that centre-point earth device data acquisition device device ZCT alarm, route connect simultaneously
Ground data collector device XJCTN alarm, track data collector device XCT1 to track data collector device XCTN alarm,
Line transformer device data acquisition device device XBT does not alarm, then fault category is that the lightning stroke of distribution line direct-type arrester connects
Ground, this is the protection of distribution line instant earthing；On track data collector device XCT1 to track data collector device XCTN
Limit alarm, centre-point earth equipment collector device ZCT alarm, line-to-ground data collector device XJCTN alarm, then failure is fixed
In line-to-ground data collector device XJCTN alarm point position, this is distribution line moment line-to-ground protection for position；
7) network server terminal system will real-time monitor line-to-ground data collector device XJCTN alarm, track data
Collector device XCT alarm free, line transformer device data acquisition device device XBT alarm free, centre-point earth equipment collector
Device ZCT alarm free, then fault category is distribution line induction type arrester lightning stroke ground connection；Line-to-ground data collector device
XJCTN alarm, then fault location is in the position line-to-ground data collector device XJCTN；
8) network server terminal system will real-time monitor line transformer device data acquisition device device XBTN alarm, route
Data collector device XCT alarm free, centre-point earth equipment collector device ZCT alarm free, line-to-ground data collector dress
XJCT alarm free is set, then fault category is distribution line transformer fault；Line transformer device data acquisition device device XBTN
Alarm, then fault location is in route transformer equipment.
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| CN109507528B (en) * | 2018-11-15 | 2020-11-06 | 国网山西省电力公司大同供电公司 | An alarm device for lightning strike and disconnection of 10kV overhead line based on fault current detection |
| CN111725794B (en) * | 2020-06-03 | 2021-05-14 | 南方电网科学研究院有限责任公司 | Control method and control device for arc suppression coil parallel low-resistance grounding device |
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