CN109507581A - The mode of connection of high-voltage circuitbreaker automatic detection - Google Patents
The mode of connection of high-voltage circuitbreaker automatic detection Download PDFInfo
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- CN109507581A CN109507581A CN201811334734.8A CN201811334734A CN109507581A CN 109507581 A CN109507581 A CN 109507581A CN 201811334734 A CN201811334734 A CN 201811334734A CN 109507581 A CN109507581 A CN 109507581A
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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
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/333—Testing of the switching capacity of high-voltage circuit-breakers ; Testing of breaking capacity or related variables, e.g. post arc current or transient recovery voltage
- G01R31/3333—Apparatus, systems or circuits therefor
- G01R31/3336—Synthetic testing, i.e. with separate current and voltage generators simulating distance fault conditions
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses a kind of mode of connection of high-voltage circuitbreaker automatic detection, it is related to breaker detection technique field, aiming at the problem that the electrical test efficiency of breaker, not high, heavy workload, safety are low and are subjected to the influence of scene interference, it is grouped using by double break circuit breaker by A, B, C three-phase, every group is respectively arranged with a common end and two fractures；High-voltage output line is used to connect with the high pressure port for the corresponding phase for detecting host respectively the common end；The fracture is used low-voltage output cord respectively to connect with the low-pressure port for detecting host；The control terminal of the divide-shut brake coil of double break circuit breaker A, B, C three-phase passes through the coil control circuit port that circuit breaker control wire is connected to detection host respectively；Double break circuit breaker A, B, C phase install a velocity sensor respectively, and are connected to the methods of detection host by a velocity test line, and this method can reduce connection times, greatly improve the working efficiency of detection.
Description
Technical field
The present invention relates to breaker detection technique field, in particular to a kind of wiring side of high-voltage circuitbreaker automatic detection
Method.
Background technique
High-voltage circuitbreaker is the core equipment for controlling and protecting circuit in an electric system, finds high-voltage circuitbreaker in time
Latency hidden danger avoids burst accident, and power grid security is reliably run and is had great importance.It is directed to high pressure at present
In the detection project of breaker, routinely there are mechanical property, insulation resistance, loop resistance, the dielectric loss of equalizing capacitance and capacitor
All items such as amount.Implement these detection projects, it is not only time-consuming, laborious and also there is certain operation risk.In addition, in high pressure open circuit
It is widely different for the requirement for detecting lead in many detection projects of device.Some require to bear high voltage and have double shield
Performance, such as: dielectric loss, insulation resistance project；Some requirements can bear larger current, such as: loop resistance project.Intuitively, machine
The method of tool is: connecting 1~2 in each terminals, can satisfy high voltage, checking of great current lead, therefore, it is necessary to more
Number of leads and connection times, when one different detection project of every detection, high-voltage circuitbreaker need to be connect again again
Line.Frequent thread-changing increases operating risk and detection time to increase test operation labor intensity.
Currently, the problem of electrical test work of breaker is primarily present three aspects: first is that working efficiency is not high, work
Amount is big, is detected using conventional instrument, need to configure more instruments, needs to change test connection and instrumentation, and with high electricity
The increase of the port height of grade breaker is pressed, for frequently disconnecting line brings a large amount of working strength；Second is that safety is low,
It is dangerous that more connection times not only make wiring personnel more face induced electricity bring, and also increase it is right during wiring
Breaker casing causes the risk of damage；Third is that accuracy of measurement is inadequate, due to the limitation of the detection environment and condition at scene, survey
Measuring instrument is inherently influenced by scene interference during amount, this is higher to the performance requirement of instrument.
Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of mode of connection of high-voltage circuitbreaker automatic detection, use as
Lower technical solution is realized:
A kind of mode of connection of high-voltage circuitbreaker automatic detection, comprising the following steps:
S1, double break circuit breaker is grouped by A, B, C three-phase, every group is respectively arranged with a common end and two fractures；
S2, the common end is used respectively high-voltage output line connect with the high pressure port for the corresponding phase for detecting host；
S3, the fracture is used respectively low-voltage output cord connect with the low-pressure port for detecting host；
S4, double break circuit breaker A, B, C three-phase the control terminal of divide-shut brake coil pass through circuit breaker control wire respectively and be connected to inspection
Survey the coil control circuit port of host；
S5, double break circuit breaker A, B, C phase install a velocity sensor respectively, and are connected to inspection by a velocity test line
Survey host.
Preferably, the high-voltage output line is including exhausted outside the first core wire, the first main insulating layer, the first internal shield, first
Edge layer, the first ground shield, the first restrictive coating；
The first main insulating layer is wrapped up outside first core wire, wraps up the first internal shield outside the first main insulating layer again, in first
The first external insulation layer is wrapped up outside shielded layer again, the first ground shield is wrapped up outside the first external insulation layer, in the first ground shield
Outer first restrictive coating again.
Preferably, first core wire is mainly used for conducting voltage signal, i.e., from detection host output voltage；
The dielectric strength of first main insulating layer is by highest insulation AC10kV design in detection project；
First internal shield is mainly made of inner shield aluminium foil and inner shield net, when carrying out loop resistance detection test, the screen
It covers layer and plays turn-on current, when carrying out remaining detection test, which plays shielding action；
Preferably, the low-voltage output cord includes the core wire group being made of two conducting wires, the second main insulating layer, the second inner shield
Layer, the second external insulation layer, the second ground shield and the second restrictive coating；
The second main insulating layer is wrapped up outside the core wire group, wraps up the second internal shield, the second inner shield again outside main insulating layer
Layer is outer to wrap up the second external insulation layer again, wraps up the second ground shield outside the second external insulation layer again, outside the second ground shield again
Package the second restrictive coating of shield.
Preferably, the core wire group is mainly used for output voltage；
The dielectric strength of second main insulating layer is by highest insulation DC2500V design in detection project.
Preferably, the velocity sensor is for testing breaker open operation speed and closing speed.
The beneficial effect comprise that high-voltage isulation and double shield structure, very big to the volume of cable, weight,
The utilization efficiency of high-voltage isulation and double shield structure can be improved in the above method, reduces the quantity, weight, thickness journey of high-voltage connection
Degree and the technology difficulty of production improve the matter of breaker correlation test to reduce the workload of detection operation, labor intensity
Amount；Using the merger of each pilot project, realize that lead is integrated, power supply is integrated, function is integrated, the machinery of breaker is special
The detection functions such as property, loop resistance, insulation resistance, dielectric loss and capacitance are integrated in set of system, are configured before the test
After the detection project and relevant parameter of required completion, whole primary connection, operation of taking out stitches are realized, complete all detections item by item automatically
Project.
Detailed description of the invention
Fig. 1 is the wiring schematic diagram of high-voltage circuitbreaker automatic detection；
Fig. 2 is the measurement loop diagram of dielectric loss detection project；
Fig. 3 is the measurement loop diagram of insulation resistance detection project；
Fig. 4 is the measurement loop diagram of mechanical property detection project；
Fig. 5 is the measurement loop diagram of loop resistance detection project；
Fig. 6 is the sectional view of high-voltage output line；
Fig. 7 is the sectional view of low-voltage output cord.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached in the embodiment of the present invention
Figure, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is the present invention
A part of the embodiment, instead of all the embodiments.The embodiment of the present invention being usually described and illustrated herein in the accompanying drawings
Detailed description is not intended to limit the range of claimed invention, but is merely representative of selected embodiment of the invention.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
As shown in Figure 1, double break circuit breaker is grouped by A, B, C phase, common end and fracture are separately connected to detection
Host (breaker automatic checkout system).By taking A phase as an example, piece high-voltage output line of common end COM connection to the height for detecting host
Pressure side mouth, port A1, A2 are separately connected a low pressure measurement line to the low-pressure port for detecting host.The mode of connection of B phase, C phase
Also same, then between double break circuit breaker and detection host, 9 main leads are shared, wherein 3 high-voltage output lines and 6 low pressure are surveyed
Measure line.
The control terminal of the divide-shut brake coil of double break circuit breaker A, B, C phase passes through circuit breaker control wire respectively and is connected to detection
The coil control circuit port of host.
Double break circuit breaker A, B, C phase install a velocity sensor respectively, and are connected to by a velocity test line
Host is detected, velocity sensor is for testing breaker open operation speed and closing speed.
As shown in fig. 6, high-voltage output line includes the first core wire 11, the first main insulating layer 12, the first internal shield 13, first
External insulation layer 14, the first ground shield 15, the first restrictive coating 16.The first main insulating layer 12 is wrapped up outside first core wire 11, the
The first internal shield 13 is wrapped up outside one main insulating layer 12 again, wraps up the first external insulation layer 14 outside the first internal shield 13 again, first
The first ground shield 15 is wrapped up outside external insulation layer 14, first restrictive coating 16 again outside the first ground shield 15.First core wire
11 are mainly used for conducting voltage signal, i.e., from detection host output voltage；The dielectric strength of first main insulating layer 12 presses detection
Highest insulation AC10kV design in mesh；First internal shield 13 is mainly made of inner shield aluminium foil and inner shield net, is being returned
When road resistance detection is tested, which plays turn-on current, and when carrying out remaining detection test, which plays shielding
Effect.
As shown in fig. 7, low-voltage output cord includes the core wire group 21 being made of two conducting wires, the second main insulating layer 22, second
Internal shield 23, the second external insulation layer 24, the second ground shield 25 and the second restrictive coating 26.Is wrapped up outside core wire group 21
Two main insulating layers 22 wrap up the second internal shield 23 again outside main insulating layer, are wrapped up again outside second outside the second internal shield 23 absolutely
Edge layer 24, the second external insulation layer 24 wrap up the second ground shield 25 again outside, wrap up shield second again outside the second ground shield 25
Restrictive coating 26.Core wire group 21 is mainly used for output voltage；The dielectric strength of second main insulating layer 22 is exhausted by highest in detection project
Edge DC2500V design.
When specific test, as shown in Fig. 2, the measurement circuit of dielectric loss detection project are as follows:
By taking A phase as an example, electric current flows to the low pressure measurement line at the end A1, A2 from the high-tension measurement line of common end (COM) respectively.In addition,
The cable of the high-tension measurement line of common end (COM) is required for 10kV ac high-voltage can be born, 10kV ac high-voltage shields, outer
Bonding.The cable of the low pressure measurement line at the end A1, A2 is required for low pressure measurement, external shield ground connection can be born.B, C phase
Cable requires also same.
As shown in figure 3, the measurement circuit of insulation resistance detection project are as follows:
By taking A phase as an example, electric current flows to the low pressure measurement line at the end A1, A2 from the high-tension measurement line of common end (COM) respectively.In addition,
The cable of the high-tension measurement line of common end (COM) is required for 5kV high direct voltage, the shielding of 5kV high direct voltage, external screen can be born
Cover ground connection.The cable of the low pressure measurement line at the end A1, A2 is required for low pressure measurement, external shield ground connection can be born.B, the electricity of C phase
Cable requires also same.
As shown in figure 4, the measurement circuit of mechanical property detection project are as follows:
By taking A phase as an example, electric current flows to the high-tension measurement line of common end (COM) from the low pressure measurement line at the end A1, A2 respectively, to cable
Without particular/special requirement.B, the cable of C phase requires also same.
As shown in figure 5, the measurement circuit of loop resistance detection project are as follows:
By taking A phase as an example, electric current flows to the low pressure measurement line at the end A1, A2 from the high-tension measurement line of common end (COM) respectively.In addition,
The cable of the high-tension measurement line of common end (COM) is required to be the high current that can bear 100A.To the low pressure measurement at the end A1, A2
The cable of line also requires that the high current of 100A can be born.B, the cable of C phase requires also same.
After the test requirements document of the above-mentioned breaker items electrical test of comprehensive analysis, using each pilot project can merger
Property, realize that lead is integrated.The cables requirement collection such as dielectric loss, insulation resistance, mechanical property, loop resistance of breaker will be met
At two kinds of cables of high-voltage output line and low pressure measurement line, realizes whole primary connection, operation of taking out stitches, take out stitches without frequent wiring.
In the above method, high-voltage isulation and double shield structure are very big to the volume of cable, weight, and the above method can
To improve the utilization efficiency of high-voltage isulation and double shield structure, quantity, weight, fineness and the production of high-voltage connection are reduced
Technology difficulty improve the quality of breaker correlation test to reduce the detection workload of operation, labor intensity；Using each
The merger of pilot project realizes that lead is integrated, power supply is integrated, function is integrated, by the mechanical property of breaker, circuit electricity
The detection functions such as resistance, insulation resistance, dielectric loss and capacitance are integrated in set of system, are completed needed for configuration before the test
After detection project and relevant parameter, whole primary connection, operation of taking out stitches are realized, complete whole detection projects item by item automatically.
Claims (6)
1. a kind of mode of connection of high-voltage circuitbreaker automatic detection, which comprises the following steps:
S1, double break circuit breaker is grouped by A, B, C three-phase, every group is respectively arranged with a common end and two fractures；
S2, the common end is used respectively high-voltage output line connect with the high pressure port for the corresponding phase for detecting host；
S3, the fracture is used respectively low-voltage output cord connect with the low-pressure port for detecting host；
S4, double break circuit breaker A, B, C three-phase the control terminal of divide-shut brake coil pass through circuit breaker control wire respectively and be connected to inspection
Survey the coil control circuit port of host；
S5, double break circuit breaker A, B, C phase install a velocity sensor respectively, and are connected to inspection by a velocity test line
Survey host.
2. the mode of connection of high-voltage circuitbreaker automatic detection according to claim 1, it is characterised in that:
The high-voltage output line is including exhausted outside the first core wire (11), the first main insulating layer (12), the first internal shield (13), first
Edge layer (14), the first ground shield (15), the first restrictive coating (16)；
The first main insulating layer (12) are wrapped up outside first core wire (11), the first main insulating layer (12) wraps up screen in first again outside
It covers layer (13), the first internal shield (13) wraps up the first external insulation layer (14) again outside, and the first external insulation layer (14) wraps up first outside
Ground shield (15), in the first ground shield (15) the first restrictive coating (16) again outside.
3. the mode of connection of high-voltage circuitbreaker automatic detection according to claim 2, it is characterised in that:
First core wire (11) is mainly used for conducting voltage signal, i.e., from detection host output voltage；
The dielectric strength of first main insulating layer (12) is by highest insulation AC10kV design in detection project；
First internal shield (13) is mainly made of inner shield aluminium foil and inner shield net, when carrying out loop resistance detection test,
The shielded layer plays turn-on current, and when carrying out remaining detection test, which plays shielding action.
4. the mode of connection of high-voltage circuitbreaker automatic detection according to claim 1, it is characterised in that:
The low-voltage output cord includes the core wire group (21) being made of two conducting wires, the second main insulating layer (22), the second inner shield
Layer (23), the second external insulation layer (24), the second ground shield (25) and the second restrictive coating (26)；
The second main insulating layer (22) are wrapped up outside the core wire group (21), wrap up the second internal shield again outside main insulating layer
(23), the second internal shield (23) wraps up the second external insulation layer (24) again outside, and the second external insulation layer (24) wraps up second again outside and connects
Ground shielded layer (25), the second ground shield (25) wrap up shield the second restrictive coating (26) again outside.
5. the mode of connection of high-voltage circuitbreaker automatic detection according to claim 4, it is characterised in that:
The core wire group (21) is mainly used for output voltage；
The dielectric strength of second main insulating layer (22) is by highest insulation DC2500V design in detection project.
6. the mode of connection of high-voltage circuitbreaker automatic detection according to claim 1, it is characterised in that:
The velocity sensor is for testing breaker open operation speed and closing speed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811334734.8A CN109507581A (en) | 2018-11-10 | 2018-11-10 | The mode of connection of high-voltage circuitbreaker automatic detection |
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| CN201811334734.8A CN109507581A (en) | 2018-11-10 | 2018-11-10 | The mode of connection of high-voltage circuitbreaker automatic detection |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110794300A (en) * | 2019-11-19 | 2020-02-14 | 国网湖北省电力有限公司电力科学研究院 | Three-phase full-voltage test power supply of breaker on primary and secondary fusion complete set of column |
| CN113325305A (en) * | 2021-06-03 | 2021-08-31 | 贵州电网有限责任公司 | 500kV circuit breaker high-voltage electrical test wiring device and use method thereof |
| CN113514669A (en) * | 2021-03-29 | 2021-10-19 | 杭州西湖电子研究所 | Wiring method for equipment detection of traction substation |
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| CN201838364U (en) * | 2010-10-22 | 2011-05-18 | 天津六〇九电缆有限公司 | High-voltage multi-core shielded signal cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110794300A (en) * | 2019-11-19 | 2020-02-14 | 国网湖北省电力有限公司电力科学研究院 | Three-phase full-voltage test power supply of breaker on primary and secondary fusion complete set of column |
| CN113514669A (en) * | 2021-03-29 | 2021-10-19 | 杭州西湖电子研究所 | Wiring method for equipment detection of traction substation |
| CN113514669B (en) * | 2021-03-29 | 2024-03-12 | 杭州西湖电子研究所 | Wiring method for traction substation equipment detection |
| CN113325305A (en) * | 2021-06-03 | 2021-08-31 | 贵州电网有限责任公司 | 500kV circuit breaker high-voltage electrical test wiring device and use method thereof |
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