CN104614604B - A kind of 10kV cable fault simulations device and failure simulation method - Google Patents
A kind of 10kV cable fault simulations device and failure simulation method Download PDFInfo
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- CN104614604B CN104614604B CN201510013133.7A CN201510013133A CN104614604B CN 104614604 B CN104614604 B CN 104614604B CN 201510013133 A CN201510013133 A CN 201510013133A CN 104614604 B CN104614604 B CN 104614604B
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- 238000001514 detection method Methods 0.000 description 4
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- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The invention discloses a kind of 10kV cable fault simulations device and failure simulation method, failure simulation device includes shell and the end of incoming cables elbow-type joint being installed on shell, connection core, card cage and leading-out terminal elbow-type joint, wherein, four end of incoming cables elbow-type joints and four leading-out terminal elbow-type joints are internally electrically connected by connecting core with card cage respectively, and end of incoming cables elbow-type joint and leading-out terminal elbow-type joint are connected with external cable by device serial connection in actual cable circuit, combination is provided with fault simulation plug-in unit in card cage.The present invention facilitates practitioner to carry out fault detect training, improves training effectiveness, save training cost by the way that fault simulation plug-in unit is combined into the various 10kV cable faults of simulation in card cage.
Description
Technical field
The present invention relates to distribution cable detection technique field.
Background technology
In cable running, external force destruction, long-term overlond running, production or construction quality is not good enough etc. that reason all may
Cable is caused to break down.It is different in different voltage class, distance, electrical leakage voltage size, cable failure degree etc.
In the case of, the fault signature and used detection device showed is had nothing in common with each other, and this requires related practitioner to have
There are skilled measuring technology and abundant practical experience.
However, the cable run of actual motion breaks down, frequency is relatively low, and some employees often can not also obtain for a long time
To the chance of detection cable fault, measuring technology is difficult to be taken exercise, and practical experience accumulation is very slow, directly affects practitioner
Level of skill raising.
The content of the invention
The technical problems to be solved by the invention are just to provide a kind of 10kV cable fault simulations device and fault simulation side
Method, the various failures that the apparatus and method energy accurate simulation 10kV cable runs occur in operation, facilitates practitioner to carry out
Fault detect is trained, and improves training effectiveness, saves training cost.
In order to solve the above technical problems, the present invention is adopted the following technical scheme that：A kind of 10kV cable fault simulations device, bag
End of incoming cables elbow-type joint, connection core, card cage and the leading-out terminal elbow-type joint for including shell and being installed on shell, wherein, four
Individual end of incoming cables elbow-type joint and four leading-out terminal elbow-type joints are internally electrically connected by connecting core with card cage respectively, and are entered
Line end elbow-type joint and leading-out terminal elbow-type joint are connected with external cable by device serial connection in actual cable circuit, in card cage
Middle combination is provided with fault simulation plug-in unit.
It is preferred that, the fault simulation plug-in unit is inserted comprising normal plug-in unit, broken string open circuit plug-in unit, short-circuit insert, low resistance/high resistance
Part and flashover high resistant plug-in unit.
It is preferred that, include a complete 10kV cable metal core inside the normal plug-in unit.
It is preferred that, the 10kV cable metal cores of a disconnection are included inside the broken string open circuit plug-in unit.
It is preferred that, two 10kV cable metal cores, two core metal short circuits are included inside the short-circuit insert.
It is preferred that, comprising two 10kV cable metal cores inside the low resistance/high resistance plug-in unit, it is connected between two cores
Adjustable resistor.
It is preferred that, comprising two 10kV cable metal cores inside the flashover high resistant plug-in unit, connected between two cores
There is high pressure varistor.
A kind of 10kV cable fault simulations method, it is various by the way that fault simulation plug-in unit is combined into simulation in card cage
10kV cable faults；
(1) simulation broken string open fault：One broken string open circuit plug-in unit and three normal plug-in units combinations are mounted side by side in slotting
Simulation broken string open fault in part case；
(2) short trouble is simulated：The mould in card cage is mounted side by side in one short-circuit insert and two normal plug-in unit combinations
Intend short trouble；
(3) simulation low-resistance or high resistive fault：By a low resistance/high resistance plug-in unit and two normal plug-in units combinations be mounted side by side in
Alternate low-resistance or high resistive fault are simulated in card cage；
(4) flashover high resistive fault is simulated：One flashover high resistant plug-in unit and two normal plug-in unit combinations are mounted side by side
Flashover high resistive fault is simulated in card cage.
The technical solution adopted by the present invention, by the way that fault simulation plug-in unit is combined into the various 10kV of simulation in card cage
Cable fault, facilitates practitioner to carry out fault detect training, improves training effectiveness, saves training cost.
Therefore, the beneficial effects of the invention are as follows：
1st, the device can simulate the various typical faults of 10kV cables, and simulation context is wide, and simulation effect is good, the failure of simulation
Can accurately it be detected by general electric cable failure detector；
2nd, the device volume is small, and fault type conversion is flexible, easy to operate；
3rd, the device can be applied to Cable fault examination training and carry out Cable fault examination combat exercise, be conducive to improving
The level of skill of cable detection personnel, enriches Cable fault examination experience.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and detailed description：
Fig. 1 is the general structure schematic diagram of the present invention；
Fig. 2 is schematic diagram when fault simulation plug-in unit is placed side by side；
Fig. 3 be simulate A phases break open fault when schematic diagram；
Fig. 4 is schematic diagram when simulating BC phase short troubles；
Fig. 5 is schematic diagram when simulating CN phase flashover high resistive faults.
Embodiment
As shown in figure 1, a kind of 10kV cable fault simulations device, it includes shell 1 and the end of incoming cables being installed on shell
Elbow-type joint 2, connection core 3, card cage 4 and leading-out terminal elbow-type joint 5, wherein, four end of incoming cables elbow-type joints 2 and four go out
Line end elbow-type joint 5 is internally electrically connected by connecting core 3 with card cage 4 respectively, and end of incoming cables elbow-type joint and leading-out terminal
Elbow-type joint is connected with external cable by device serial connection in actual cable circuit, and combination is provided with fault simulation in card cage
Plug-in unit.
As shown in Fig. 2 the fault simulation plug-in unit includes normal plug-in unit 4.1, broken string open circuit plug-in unit 4.2, short-circuit insert
4.3rd, low resistance/high resistance plug-in unit 4.4 and flashover high resistant plug-in unit 4.5, above-mentioned five kinds of plug-in units can be combined and are mounted side by side in card cage.
Wherein, a complete 10kV cable metal core is included inside normal plug-in unit.A disconnection is included inside broken string open circuit plug-in unit
10kV cable metal cores.Two 10kV cable metal cores, two core metal short circuits are included inside short-circuit insert.Low-resistance/
Comprising two 10kV cable metal cores inside high resistant plug-in unit, adjustable resistor is connected between two cores, its adjustable extent 50
Ω—50MΩ.It is pressure-sensitive that high pressure is connected with comprising two 10kV cable metal cores inside flashover high resistant plug-in unit, between two cores
Resistor.
A kind of method that 10kV cable fault simulations are carried out using above-mentioned 10kV cable fault simulations device, its realization
Method is as follows：
(1) simulation broken string open fault.One broken string open circuit plug-in unit 4.2 and three normal plug-in units 4.1 are combined, pacified side by side
Loaded on broken string open fault can be simulated in card cage 4.Wherein, if broken string open circuit plug-in unit 4.2 be installed on card cage 4 1., 2.,
3., 4. position, then be corresponding in turn to simulation A, B, C, N phase and break open fault.
3. 4. wherein, if 1. broken string open circuit plug-in unit 4.2 is installed on into position, 2. three normal plug-in units 4.1 are installed on position,
A phases are then simulated to break open fault (as shown in Figure 3)；If 2. broken string open circuit plug-in unit 4.2 is installed on into position, three normal slotting
Part 4.1, which is installed on position and 1. 3. 4., then simulates B phases, to break open fault；If broken string open circuit plug-in unit 4.2 is installed on into position
3., three normal plug-in units 4.1, which are installed on position and 1. 2. 4., then simulate C phases, breaks open fault.
(2) short trouble is simulated.One short-circuit insert 4.3 and two normal plug-in units 4.1 are combined, are mounted side by side in plug-in unit
Short trouble can be simulated in case 4.Wherein, if short-circuit insert 4.3 be installed on card cage 4 1. 2., 2. 3., 3. 4. position, according to
Secondary correspondence simulation AB, BC, CN short trouble.
Wherein, if 2. 1. short-circuit insert 4.3 is installed on into position, 3., 4. two normal plug-in units 4.1 are installed on position, then
Simulate AB phase short troubles；If 3. 2. short-circuit insert 4.3 is installed on into position, two normal plug-in units 4.1 be installed on position 1.,
4., then BC phases short trouble (as shown in Figure 4) is simulated；If 4. 3. short-circuit insert 4.3 is installed on into position, two normal plug-in units
1., 2., then 4.1 are installed on position simulates CN phase short troubles.
(3) simulation low-resistance or high resistive fault.One low resistance/high resistance plug-in unit 4.4 and two normal plug-in units 4.1 are combined, and
Row, which is installed in card cage 4, can simulate alternate low-resistance or high resistive fault.
Wherein, if the adjustable resistor inside low resistance/high resistance plug-in unit 4.4 to be set to 50 Ω -1000 Ω arbitrary value,
Low resistance faults are then simulated, if the adjustable resistor inside low resistance/high resistance plug-in unit 4.4 is set into any of 1000 Ω -50M Ω
Value, then simulate high resistive fault；If low resistance/high resistance plug-in unit 4.4 be installed on card cage 4 1. 2., 2. 3., 3. 4. position, according to
Secondary correspondence simulation AB, BC, CN low-resistance or high resistive fault.
(4) flashover high resistive fault is simulated.One flashover high resistant plug-in unit 4.5 and two normal plug-in units 4.1 are combined, and
Row, which is installed in card cage 4, can simulate flashover high resistive fault.Wherein, if flashover high resistant plug-in unit 4.5 is installed on card cage 4
1. 2., 2. 3., 3. 4. position, then be corresponding in turn to simulation AB, BC, CN flashover high resistive fault.
Wherein, if 2. 1. flashover high resistant plug-in unit 4.5 is installed on into position, two normal plug-in units 4.1 be installed on position 3.,
4., then AB phase flashover high resistive faults are simulated；If 3. 2. flashover high resistant plug-in unit 4.5 is installed on into position, two normal slotting
Part 4.1 is installed on position and 1., 4., then simulates BC phase flashover high resistive faults；If flashover high resistant plug-in unit 4.5 is installed on into position
3. 4. put, two normal plug-in units 4.1 are installed on position and 1., 2., then simulate CN phase flashover high resistive faults (as shown in Figure 5).
Claims (1)
1. a kind of 10kV cable fault simulations device, it is characterised in that：Including shell and the end of incoming cables elbow-type being installed on shell
Joint, connection core, card cage and leading-out terminal elbow-type joint, wherein, four end of incoming cables elbow-type joints and four leading-out terminal elbow-type
Joint is internally electrically connected by connecting core with card cage respectively, and end of incoming cables elbow-type joint and leading-out terminal elbow-type joint with it is outer
Portion's cable is connected by device serial connection in actual cable circuit, and combination is provided with fault simulation plug-in unit, the event in card cage
Barrier simulation plug-in unit includes normal plug-in unit, broken string open circuit plug-in unit, short-circuit insert, low resistance/high resistance plug-in unit and flashover high resistant plug-in unit, institute
State comprising a complete 10kV cable metal core inside normal plug-in unit, the broken string open circuit plug-in unit inside includes a disconnection
10kV cable metal cores, include two 10kV cable metal cores, two core metal short circuits, institute inside the short-circuit insert
State to include inside low resistance/high resistance plug-in unit and be connected with adjustable resistor, the sudden strain of a muscle between two 10kV cable metal cores, two cores
Comprising two 10kV cable metal cores inside network high resistant plug-in unit, high pressure varistor is connected between two cores；
By the way that fault simulation plug-in unit is combined into the various 10kV cable faults of simulation in card cage；
（1）Simulation broken string open fault：One broken string open circuit plug-in unit and three normal plug-in units combinations are mounted side by side in card cage
Middle simulation broken string open fault；
（2）Simulate short trouble：One short-circuit insert and two normal plug-in units combinations are mounted side by side simulated in card cage it is short
Road failure；
（3）Simulate low-resistance or high resistive fault：One low resistance/high resistance plug-in unit and two normal plug-in unit combinations are mounted side by side in plug-in unit
Alternate low-resistance or high resistive fault are simulated in case；
（4）Simulate flashover high resistive fault：One flashover high resistant plug-in unit and two normal plug-in unit combinations are mounted side by side in slotting
Flashover high resistive fault is simulated in part case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510013133.7A CN104614604B (en) | 2015-01-12 | 2015-01-12 | A kind of 10kV cable fault simulations device and failure simulation method |
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| CN201510013133.7A CN104614604B (en) | 2015-01-12 | 2015-01-12 | A kind of 10kV cable fault simulations device and failure simulation method |
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| CN104614604B true CN104614604B (en) | 2017-09-26 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070158B (en) * | 2015-07-30 | 2018-05-22 | 国家电网公司 | Cable fault analogue simulation system |
| CN107293198A (en) * | 2017-06-21 | 2017-10-24 | 柳州职业技术学院 | A kind of low-voltage power supply system fault diagnosis actual training device |
| CN108198481A (en) * | 2018-02-07 | 2018-06-22 | 宁波送变电建设有限公司 | A kind of intelligent cable failure simulation device |
| CN110706568A (en) * | 2019-10-31 | 2020-01-17 | 广州供电局有限公司 | Cable fault simulation device and system |
| CN113884948A (en) * | 2021-10-27 | 2022-01-04 | 广西电网有限责任公司培训与评价中心 | Power cable fault simulation testing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0525522A3 (en) * | 1991-07-31 | 1993-04-28 | St Microelectronics Srl | Drive circuit fault detection device |
| CN201262640Y (en) * | 2008-08-26 | 2009-06-24 | 西安嘉源电气有限公司 | Power cable fault simulator |
| CN101699540A (en) * | 2009-11-16 | 2010-04-28 | 江苏省电力公司常州供电公司 | Cable fault simulation and location system |
| CN201859584U (en) * | 2010-10-29 | 2011-06-08 | 河北省电力公司职业技术培训中心 | Cable fault simulation training device |
| CN202183174U (en) * | 2011-08-24 | 2012-04-04 | 高密市供电公司 | Cable fault simulation test case |
| CN102542881A (en) * | 2010-12-14 | 2012-07-04 | 北京市电力公司 | Cable fault simulator and cable fault simulation system |
| CN202473044U (en) * | 2012-03-28 | 2012-10-03 | 齐齐哈尔电业局 | Cable fault simulation experimental device |
| CN204332204U (en) * | 2015-01-12 | 2015-05-13 | 国家电网公司 | A kind of 10kV cable fault simulation device |
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2015
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0525522A3 (en) * | 1991-07-31 | 1993-04-28 | St Microelectronics Srl | Drive circuit fault detection device |
| CN201262640Y (en) * | 2008-08-26 | 2009-06-24 | 西安嘉源电气有限公司 | Power cable fault simulator |
| CN101699540A (en) * | 2009-11-16 | 2010-04-28 | 江苏省电力公司常州供电公司 | Cable fault simulation and location system |
| CN201859584U (en) * | 2010-10-29 | 2011-06-08 | 河北省电力公司职业技术培训中心 | Cable fault simulation training device |
| CN102542881A (en) * | 2010-12-14 | 2012-07-04 | 北京市电力公司 | Cable fault simulator and cable fault simulation system |
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| CN204332204U (en) * | 2015-01-12 | 2015-05-13 | 国家电网公司 | A kind of 10kV cable fault simulation device |
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| CN104614604A (en) | 2015-05-13 |
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