CN203216999U - Capacitive equipment dielectric loss live line measurement sampling device - Google Patents
Capacitive equipment dielectric loss live line measurement sampling device Download PDFInfo
- Publication number
- CN203216999U CN203216999U CN 201320198212 CN201320198212U CN203216999U CN 203216999 U CN203216999 U CN 203216999U CN 201320198212 CN201320198212 CN 201320198212 CN 201320198212 U CN201320198212 U CN 201320198212U CN 203216999 U CN203216999 U CN 203216999U
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- Prior art keywords
- dielectric loss
- end screen
- branch road
- live line
- line measurement
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- 238000005259 measurement Methods 0.000 title claims abstract description 25
- 238000005070 sampling Methods 0.000 title abstract description 6
- 238000012360 testing method Methods 0.000 claims abstract description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052802 copper Inorganic materials 0.000 claims abstract description 14
- 239000010949 copper Substances 0.000 claims abstract description 14
- 230000001012 protector Effects 0.000 claims description 18
- 230000000694 effects Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 2
- 210000005069 ears Anatomy 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- Testing Relating To Insulation (AREA)
Abstract
The utility model relates to a capacitive equipment dielectric loss live line measurement sampling device consisting of a machine box and an inner core, wherein the inner core includes four functional branch circuits which are connected in parallel, one end of each four branch circuits is connected with a signal connection copper bar, the other end of each four branch circuits is connected with a grounding copper bar, a first end screen protection device is arranged in a first branch circuit in a connected manner, a current transformer and a first connecting terminal which are connected in series are arranged in a second branch circuit in a connected manner, a second end screen protection device is connected with the first connecting terminal in parallel, a current clamp test rack and a second connecting terminal which are connected in series are arranged in a third branch circuit in a connected manner, a third end screen protection device is connected with the second connecting terminal in parallel, and a standby wire connecting terminal is arranged in a forth branch circuit in a connected manner. The capacitive equipment dielectric loss live line measurement sampling device is characterized in that measurement can be realized through the current transformer or a clamp meter; power failure dielectric loss can be measured in a quick and safe manner when an apparatus is not dismounted; the capacitive equipment dielectric loss live line measurement sampling device is advantaged by full functions, convenience of use, and high safety and reliability.
Description
Technical field
The utility model relates to a kind of electric power capacitive apparatus medium loss live line measurement sampler.
Background technology
Now the insulation detection means of capacitive apparatus is divided into two kinds, and a kind of is the test that has a power failure, i.e. traditional dielectric loss measurement, and also having a kind of is that live testing is relative dielectric loss measurement.Traditional power failure dielectric loss detects, and the end screen with capacitive apparatus after needing to have a power failure disconnects, and inserts testing tool then and tests, and screen position, general end is all higher, need work high above the ground, and end screen dismounting is also more loaded down with trivial details.Charged relative dielectric loss measurement only needs sampler to be installed or to be utilized the split-core type meter sampling at electrical equipment in advance, just can carry out relative dielectric loss measurement at the fc-specific test FC instrument by producer, this charged detection mode have small investment, with strong points, be convenient to advantages such as installation and maintenance and renewal, and this live testing equally also can reach timely discovery insulation defect, the purpose in prolongation power failure prerun cycle by operating electrical equipment is regularly detected.But there is the risk of end screen open circuit on the one hand in existing end screen signal sampling device in measuring the process of using, on the other hand still will be as originally implementing work high above the ground and loaded down with trivial details unloading process in the time will having a power failure dielectric loss measurement, and very inconvenient; And the available metering system of existing sampler is also very single, uses dirigibility relatively poor.
The utility model content
The technical problems to be solved in the utility model is: a kind of complete function, easy to use and capacitive apparatus medium loss live line measurement sampler that the security reliability is higher are provided, have to solve existing like product that functions of use is single, a problem of the loaded down with trivial details inconvenience of use and the relatively poor defective of security reliability.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of capacitive apparatus medium loss live line measurement sampler; formed by cabinet and inner core; described inner core includes the functional branch road of four parallel connections; article four, a branch road end separately all is connected the copper bar connection with signal; the other end separately all is connected with the ground connection copper bar; in first branch road, be equipped with the first end screen protector; in second branch road, connect and establish current transformer and first splicing ear that is in series; and be parallel with the second end screen protector at first splicing ear; in the 3rd branch road, connect and establish current clamp testing jig and second splicing ear that is in series; and be parallel with the 3rd end screen protector at second splicing ear, in the 4th branch road, be equipped with standby connection terminal.
Installation and the use-pattern of this sampler are as follows: during installation, its signal is connected copper bar be connected to obtain current signal with end screen downlead, ground connection copper bar ground connection gets final product.During use, when making Current Transformer carry out signal measurement, the first splicing ear closure, second splicing ear are opened, the secondary side signaling interface that connects current transformer can be measured; When using current clamp to carry out signal measurement, with first splicing ear open, the second splicing ear closure, current clamp is hung on the current clamp testing jig can be measured; When having a power failure dielectric loss measurement or when using the tester of built-in mutual inductor to measure, first splicing ear and second splicing ear are all opened, with p-wire with can measure after standby connection terminal is connected.
In this sampler, the effect of the second end screen protector is to prevent from causing because of the lead-in wire open circuit of current transformer when adopting second branch road to test the generation of the danger of the unsettled charging operation of end screen; The effect of the 3rd end screen protector is to prevent from causing because of end screen downlead open circuit when adopting the 3rd branch road to test the generation of the danger of the unsettled charging operation of end screen; The first end screen protector then is to play to prevent that the end from shielding the effect that unsettled charging operation is caused danger under second branch road and the 3rd branch road all are in the situation of open-circuit condition.
The beneficial effects of the utility model are: this capacitive apparatus medium loss live line measurement sampler is compared with existing like product, outstanding advantage is its functions of use comprehensive, easy to use and security and reliability height, it both can make Current Transformer measure, can use split-core type meter to measure again, convenient calibration to sampler, simultaneously can also be under the situation of not stripping assembly rapid and convenient, the dielectric loss measurement that has a power failure safely.This capacitive apparatus medium loss live line measurement sampler can satisfy the request for utilization of outdoor long-time running well.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the electrical structure synoptic diagram of inner core of the present utility model.
Among the figure: 1. signal connects copper bar 2. ground connection copper bars 3. first end screen protectors 4. current transformers 5. first splicing ears 6. second end screen protectors 7. current clamp testing jigs 8. second splicing ears 9. the 3rd end screen protector 10. standby connection terminals
Embodiment
A kind of capacitive apparatus medium loss live line measurement sampler; formed by cabinet and inner core; as shown in Figure 1; its inner core includes the functional branch road of four parallel connections; article four, a branch road end separately all is connected copper bar 1 connection with signal; the other end separately all is connected with ground connection copper bar 2; in first branch road, be equipped with the first end screen protector 3; in second branch road, connect and establish current transformer 4 and first splicing ear 5 that is in series; and be parallel with the second end screen protector 6 at first splicing ear 5; in the 3rd branch road, connect and establish current clamp testing jig 7 and second splicing ear 8 that is in series; and be parallel with the 3rd end screen protector 9 at second splicing ear 8, in the 4th branch road, be equipped with standby connection terminal 10.
Installation and the use-pattern of this sampler are as follows: during installation, its signal is connected copper bar 1 be connected to obtain current signal with end screen downlead, ground connection copper bar 2 ground connection get final product.During use, when making Current Transformer 4 carry out signal measurement, first splicing ear, 5 closures, second splicing ear 8 are opened, the secondary side signaling interface that connects current transformer 4 can be measured; When using current clamp to carry out signal measurement, with first splicing ear 5 open, second splicing ear, 8 closures, current clamp is hung on current clamp testing jig 7 can be measured; When having a power failure dielectric loss measurement or when using the tester of built-in mutual inductor to measure, first splicing ear 5 and second splicing ear 8 are all opened, with p-wire with can measure after standby connection terminal 10 is connected.
In this sampler, the effect of the second end screen protector 6 is to prevent from causing because of the lead-in wire open circuit of current transformer 4 when adopting second branch road to test the generation of the danger of the unsettled charging operation of end screen; The effect of the 3rd end screen protector 9 is to prevent from causing because of end screen downlead open circuit when adopting the 3rd branch road to test the generation of the danger of the unsettled charging operation of end screen; The first end screen protector 3 then is to play to prevent that the end from shielding the effect that unsettled charging operation is caused danger under second branch road and the 3rd branch road all are in the situation of open-circuit condition.
Claims (1)
1. capacitive apparatus medium loss live line measurement sampler; formed by cabinet and inner core; it is characterized in that: described inner core includes the functional branch road of four parallel connections; article four, a branch road end separately all is connected copper bar (1) connection with signal; the other end separately all is connected with ground connection copper bar (2); in first branch road, be equipped with the first end screen protector (3); in second branch road, connect and establish the current transformer (4) and first splicing ear (5) that is in series; and be parallel with the second end screen protector (6) at first splicing ear (5); in the 3rd branch road, connect and establish the current clamp testing jig (7) and second splicing ear (8) that is in series; and be parallel with the 3rd end screen protector (9) at second splicing ear (8), in the 4th branch road, be equipped with standby connection terminal (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320198212 CN203216999U (en) | 2013-04-19 | 2013-04-19 | Capacitive equipment dielectric loss live line measurement sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320198212 CN203216999U (en) | 2013-04-19 | 2013-04-19 | Capacitive equipment dielectric loss live line measurement sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203216999U true CN203216999U (en) | 2013-09-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320198212 Expired - Fee Related CN203216999U (en) | 2013-04-19 | 2013-04-19 | Capacitive equipment dielectric loss live line measurement sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203216999U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062508A (en) * | 2014-06-20 | 2014-09-24 | 国家电网公司 | Live detection auxiliary device for dielectric loss of voltage transformer |
| CN107229030A (en) * | 2016-08-31 | 2017-10-03 | 广州供电局有限公司 | Monitor Intelligent current transformer on-line |
| CN108362945A (en) * | 2018-04-18 | 2018-08-03 | 广东电网有限责任公司 | A kind of bushing shell for transformer distal end power failure experimental rig and method |
-
2013
- 2013-04-19 CN CN 201320198212 patent/CN203216999U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062508A (en) * | 2014-06-20 | 2014-09-24 | 国家电网公司 | Live detection auxiliary device for dielectric loss of voltage transformer |
| CN107229030A (en) * | 2016-08-31 | 2017-10-03 | 广州供电局有限公司 | Monitor Intelligent current transformer on-line |
| CN108362945A (en) * | 2018-04-18 | 2018-08-03 | 广东电网有限责任公司 | A kind of bushing shell for transformer distal end power failure experimental rig and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20150419 |
|
| EXPY | Termination of patent right or utility model |