CN110596631A - Fault indicator batch detection platform and suspension line thereof - Google Patents
Fault indicator batch detection platform and suspension line thereof Download PDFInfo
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- CN110596631A CN110596631A CN201811482981.2A CN201811482981A CN110596631A CN 110596631 A CN110596631 A CN 110596631A CN 201811482981 A CN201811482981 A CN 201811482981A CN 110596631 A CN110596631 A CN 110596631A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention relates to a fault indicator batch detection platform and a suspension circuit thereof, wherein the suspension circuit comprises a circuit sleeve, the circuit sleeve is a metal conductive sleeve, and a voltage source is connected with the outer wall of the circuit sleeve to realize the simulation of a circuit electric field; the current source is connected with a current loop in the circuit sleeve to realize the simulation of the circuit current. Because the equivalent sectional area of the line sleeve is far larger than that of the existing electric field induction clamp, the electric field induction capability of the indicator acquisition unit is improved. And, have higher mechanical strength, can resist the mechanical damage that the dismantlement link brought among the fault indicator batch test process made, make the suspension line more durable, and need not to install electric field induction clip alright feel the change of circuit simulation electric field. Therefore, the scheme provides a suspension line, and the defects that the existing suspension line is weak in electric field induction strength, low in mechanical strength of a line sleeve, complex in assembling and disassembling process of an electric field induction clamp and the like are overcome.
Description
Technical Field
The invention relates to a fault indicator batch detection platform and a suspension circuit thereof, and belongs to the technical field of automatic detection of electric power equipment.
Background
First, the following terms are briefly explained:
distribution lines fault indicator: install on the distribution lines for detect line short-circuit fault and single-phase earth fault and send alarm information, promote the device of the quick accurate detection location ability of single-phase earth fault of distribution lines, every set of fault indicator is assembled the unit by 3 acquisition units and 1 and is constituteed.
Distribution lines fault indicator detects platform in batches: the device can simulate various fault conditions of the distribution line in real time and is used for batch examination of the product performance of the detected fault indicator. The platform consists of a real-time simulator of the power system, a voltage and current power amplifier, a current boosting and boosting device, a suspension line, a background monitoring interface and the like.
Distribution lines fault indicator is detection platform's suspension line in batches: the line simulator can be used for hanging and installing the fault indicator and simulating the electric field and the current of the power transmission line in real time, and is an important component of a batch detection platform for the fault indicator of the power distribution line.
The existing suspension circuit design scheme is shown in fig. 1, and the suspension circuit comprises a voltage current terminal (I), a multi-turn current loop (II), a circuit insulating sleeve (III) and an electric field induction clamp (IV), wherein the fifth is a fault indicator acquisition unit and the sixth is an N-set acquisition unit. The current source injects current into the multi-turn current loop II through the current terminal to realize the simulation of line current; and the voltage source is connected with the electric field induction clamp (IV) through a voltage terminal, so that the simulation of the electric field of the line is realized. This design has the following disadvantages: the mechanical strength of the line sleeve is low, the electric field induction strength is weak, the assembling and disassembling process of the electric field induction clamp is complicated, and the test efficiency needs to be improved.
The reasons for the above disadvantages are analyzed as follows:
(1) the mechanical strength of the line casing is low: the line sleeve pipe adopts the PVC pipe material, and fault indicator is in the testing process in batches, has many times, large batch fault indicator to hang, the installation, and PVC material sheathed tube mechanical strength is not enough to bear the impact that brings among the dismantlement process, and after using in batches many, there are damage phenomena such as sleeve pipe fish tail, rupture.
(2) Weak electric field induction strength: the electric field measurement of the fault indicator is realized by a voltage division principle between the self capacitance of the device and the equivalent capacitance of an installation place, capacitance parameters in fault indicator devices of different manufacturers are different, and the electric field induction clamp has a small equivalent area to the ground, namely the capacitance value of the equivalent capacitance is very small, so that the electric field intensity induction capability of the devices of part of manufacturers is weak and the devices cannot work normally in the actual use process.
(3) The electric field induction clamp assembling and disassembling process is complicated: when the batch detection platform detects N sets of equipment simultaneously, 3 XN sets of collection units are hung, and each set of collection unit needs to be connected with the electric field induction clamp, so that the real-time measurement of electric field change is realized, the process of assembling and disassembling the electric field induction clamp exists in the test process, the working steps are complex, and the detection efficiency is reduced.
Disclosure of Invention
The invention aims to provide a suspension line of a batch detection platform of fault indicators, which is used for solving the problem that the electric field induction strength of the existing suspension line is weak. The invention also provides a fault indicator batch detection platform which is used for solving the problem that the electric field induction strength of a suspension line in the conventional fault indicator batch detection platform is weak.
In order to achieve the purpose, the invention comprises the following technical scheme:
a suspended line of a fault indicator batch detection platform comprises a line sleeve, wherein the line sleeve is a metal conductive sleeve, the outer wall of the line sleeve is connected with a voltage terminal, and the voltage terminal is used for being connected with a voltage source to realize the simulation of a line electric field; a current loop penetrates through the circuit sleeve, the current loop is connected with a current terminal, and the current terminal is used for being connected with a current source so as to inject current into the current loop and realize the simulation of circuit current.
The voltage source passes through voltage terminal connection circuit sheathed tube outer wall, realizes the simulation of circuit electric field, because the equivalent sectional area of circuit sheathed tube is greater than the equivalent sectional area of current electric field response clip far away, consequently, the intensity of circuit electric field obtains very big promotion, and electric field strength sensing ability is strong, has promoted the ability of indicator acquisition unit electric field response. Moreover, compared with the prior art, the suspension circuit that this scheme provided still solves following problem: (1) the mechanical strength of the line casing is low: the novel sleeve is a metal sleeve, replaces the existing insulating sleeve, has higher mechanical strength, can resist mechanical damage caused by a disassembly link in the batch test process of the fault indicators, and makes a suspension line more durable; (2) the electric field induction clamp assembling and disassembling process is complicated: novel line sleeve has good electric conductive property, and the sleeve wall has the equipotential with voltage terminal, and in addition, fault indicator acquisition unit can directly hang novel line sleeve on, need not to install electric field response clip alright with the change of feeling the circuit simulation electric field, detects the dismantlement link that the link has detached electric field response clip promptly, has promoted efficiency of software testing. Consequently, the hanging line that this scheme provided has solved that the electric field induction intensity that current hanging line exists is weak, line sleeve pipe mechanical strength is low, a great deal of defect such as electric field induction clip handling process is loaded down with trivial details, and the line sleeve pipe has the advantage that mechanical strength is high and electric field induction ability is strong to the link is dismantled in the installation of having detached electric field induction clip, has improved fault indicator batch testing platform's efficiency of software testing, and simultaneously, testing platform is also more practical, succinct.
Furthermore, the circuit sleeve is an annular sleeve, a sleeve window is formed in the annular sleeve, and the current terminal is led out from the sleeve window.
Adopt annular circuit sleeve pipe, it has a sleeve pipe window to open on the annular sleeve pipe, and the current terminal is drawn forth from the sleeve pipe window, and this circuit sleeve pipe realizes integration and closed circuit sleeve pipe design, has further promoted the ability of indicator acquisition unit electric field response, moreover, avoids the current return circuit to receive external interference, has solved a great deal of drawback that current suspension circuit scheme exists, has promoted fault indicator batch testing platform's efficiency of software testing.
Further, the suspension line further comprises the voltage source and the current source.
Further, the line sleeve is a 0Cr19Ni9 or 0Cr18Ni9 stainless steel tube. The stainless steel pipe 0Cr19Ni9 or 0Cr18Ni9 has high mechanical strength, weak magnetic susceptibility and high conductivity, and further improves the electric field induction strength and the mechanical strength of the line sleeve.
A fault indicator batch detection platform comprises a suspension circuit, wherein the suspension circuit comprises a circuit sleeve, the circuit sleeve is a metal conductive sleeve, the outer wall of the circuit sleeve is connected with a voltage terminal, and the voltage terminal is used for being connected with a voltage source to realize the simulation of a circuit electric field; a current loop penetrates through the circuit sleeve, the current loop is connected with a current terminal, and the current terminal is used for being connected with a current source so as to inject current into the current loop and realize the simulation of circuit current.
The voltage source passes through voltage terminal connection circuit sheathed tube outer wall, realizes the simulation of circuit electric field, because the equivalent sectional area of circuit sheathed tube is greater than the equivalent sectional area of current electric field response clip far away, consequently, the intensity of circuit electric field obtains very big promotion, and electric field strength sensing ability is strong, has promoted the ability of indicator acquisition unit electric field response. Moreover, compared with the prior art, the detection platform provided by the scheme also solves the following problems: (1) the mechanical strength of the line casing is low: the novel sleeve is a metal sleeve, replaces the existing insulating sleeve, has higher mechanical strength, can resist mechanical damage caused by a disassembly link in the batch test process of the fault indicators, and makes a suspension line more durable; (2) the electric field induction clamp assembling and disassembling process is complicated: novel line sleeve has good electric conductive property, and the sleeve wall has the equipotential with voltage terminal, and in addition, fault indicator acquisition unit can directly hang novel line sleeve on, need not to install electric field response clip alright with the change of feeling the circuit simulation electric field, detects the dismantlement link that the link has detached electric field response clip promptly, has promoted efficiency of software testing. Therefore, the detection platform that this scheme provided has solved that the electric field induction intensity that current detection platform exists is weak, circuit sleeve pipe mechanical strength is low, a great deal of defect such as electric field induction clip loading and unloading process is loaded down with trivial details, and the circuit sleeve pipe has the advantage that mechanical strength is high and electric field induction ability is strong to the link is dismantled in the installation of having detached electric field induction clip, has improved fault indicator batch detection platform's efficiency of software testing, and simultaneously, detection platform is also more practical, succinct.
Furthermore, the circuit sleeve is an annular sleeve, a sleeve window is formed in the annular sleeve, and the current terminal is led out from the sleeve window.
Adopt annular circuit sleeve pipe, it has a sleeve pipe window to open on the annular sleeve pipe, and the current terminal is drawn forth from the sleeve pipe window, and this circuit sleeve pipe realizes integration and closed circuit sleeve pipe design, has further promoted the ability of indicator acquisition unit electric field response, moreover, avoids the current return circuit to receive external interference, has solved a great deal of drawback that current suspension circuit scheme exists, has promoted fault indicator batch testing platform's efficiency of software testing.
Further, the detection platform further comprises the voltage source and the current source.
Further, the line sleeve is a 0Cr19Ni9 or 0Cr18Ni9 stainless steel tube. The stainless steel pipe 0Cr19Ni9 or 0Cr18Ni9 has high mechanical strength, weak magnetic susceptibility and high conductivity, and further improves the electric field induction strength and the mechanical strength of the line sleeve.
Drawings
FIG. 1 is a schematic diagram of a prior art suspension circuit configuration;
FIG. 2 is a schematic diagram of a suspension circuit configuration provided by the present invention;
in fig. 1, firstly, a voltage current terminal, a multi-turn current loop, a line insulating sleeve, an electric field induction clamp, a fault indicator acquisition unit and N sets of acquisition units are provided; in fig. 2, 1-1 is a voltage terminal, 1-2 is a current terminal, 2 is a current loop, 3 is a line bushing, 4 is a bushing window, 5 is a fault indicator acquisition unit, and 6 is N sets of acquisition units.
Detailed Description
Fault indicator batch detection platform embodiment
The embodiment provides a batch detection platform for fault indicators, which comprises a suspension line and other components, wherein the protection point of the detection platform is the structure of the suspension line, so that the embodiment focuses on the specific description of the suspension line, and the other components of the detection platform, such as a fault indicator acquisition unit, are not described in detail.
As shown in fig. 2, the suspension line comprises a line casing 3, the line casing 3 is a metal conductive casing, and the voltage source is connected to the outer wall of the line casing 3 through a voltage terminal 1-1, so as to realize the simulation of the electric field of the line. A current loop 2 is arranged in the circuit casing 3 in a penetrating manner, under normal conditions, a multi-turn current loop is arranged in a penetrating manner, a current source is connected with the multi-turn current loop 2 through a current terminal 1-2 of the multi-turn current loop 2, and current is injected into the multi-turn current loop 2 to realize circuit current simulation. In fig. 2, reference numeral 5 denotes a failure indicator acquisition unit, and 6 denotes N sets of acquisition units.
In this embodiment, the line casing 3 is an annular casing, a casing window 4 is formed in the annular casing, the current terminals 1-2 are led out from the casing window 4, and the casing window 4 is a wiring window reserved for the line casing 3, so that the installation of the multi-turn current loop 2 is facilitated. Of course, as other embodiments, the line casing 3 may also be in other structures, such as a straight pipe structure using an existing casing, or in other structures.
In order to further improve the induction capability of the electric field intensity, the line sleeve 3 adopts a 0Cr19Ni9 or 0Cr18Ni9 stainless steel tube with high mechanical strength, weak magnetic susceptibility and high conductivity.
In addition, the voltage source and the current source may be part of the suspension circuit, or may not be part of the suspension circuit, but other components of the detection platform.
By adopting the design scheme provided by the invention, a novel suspension line is researched and manufactured, and comprehensive performance test is carried out on the distribution line fault indicator batch detection platform, the test effect is consistent with the design expectation, a plurality of defects existing in the existing suspension line scheme are overcome, and the test efficiency of the fault indicator batch detection platform is improved.
Two embodiments are given below
(I): the performance comparison test of the suspended line test platform designed by the prior art scheme and the suspended line test platform designed by the technical scheme of the invention is carried out.
The method has the advantages that multiple fault indicators produced by current mainstream manufacturers are adopted, the same test detecting instrument is adopted, and test tests are respectively carried out on the platforms designed by the two technical schemes, and test results show that the suspension circuit designed by the invention has more excellent comprehensive performance, strong induction capability of electric field intensity, quicker and simpler installation and disassembly processes of the fault indicators, and the detection efficiency of the platforms is improved.
And (II) the test platform designed by the invention is applied to a project of full inspection of the arrival of a certain provincial fault indicator.
After a suspended line platform designed by the prior art is assembled and disassembled for a plurality of times and a large amount of fault indicators, the outer wall of a line casing pipe has mechanical damage phenomena such as scratch, fracture and the like, so that the test cannot be smoothly carried out; after the suspension circuit platform designed by the scheme of the invention is subjected to repeated and large-batch mounting and dismounting operations of the fault indicators, the outer wall of the suspension circuit has no mechanical damage phenomena such as scratch, breakage and the like, the suspension circuit platform presents good mechanical strength performance, and the fault indicators can smoothly run in a full-inspection test.
The specific embodiments are given above, but the present invention is not limited to the described embodiments. The basic idea of the invention is the construction of the suspension circuit described above. Variations, modifications, substitutions and alterations may be made to the embodiments without departing from the principles and spirit of the invention, and still fall within the scope of the invention.
Suspended line embodiment of fault indicator batch detection platform
The present embodiments provide a hanging line for a fault indicator batch testing platform that can be individually manufactured, sold, and protected. Since the suspension circuit has been described in detail in the above-described embodiment of the inspection platform, it will not be described in detail here.
Claims (8)
1. A suspended line of a fault indicator batch detection platform is characterized by comprising a line sleeve, wherein the line sleeve is a metal conductive sleeve, the outer wall of the line sleeve is connected with a voltage terminal, and the voltage terminal is used for being connected with a voltage source to realize the simulation of a line electric field; a current loop penetrates through the circuit sleeve, the current loop is connected with a current terminal, and the current terminal is used for being connected with a current source so as to inject current into the current loop and realize the simulation of circuit current.
2. The suspended circuit of claim 1, wherein the circuit casing is an annular casing, and a casing window is formed in the annular casing, and the current terminal is led out from the casing window.
3. The suspended wiring of the batch test platform of fault indicators of claim 1 or 2, further comprising the voltage source and current source.
4. The suspended line of fault indicator batch test platform of claim 1 or 2, wherein the line casing is 0Cr19Ni9 or 0Cr18Ni9 stainless steel tubing.
5. The fault indicator batch detection platform comprises a suspension circuit and is characterized in that the suspension circuit comprises a circuit sleeve, the circuit sleeve is a metal conductive sleeve, the outer wall of the circuit sleeve is connected with a voltage terminal, and the voltage terminal is used for being connected with a voltage source to realize the simulation of a circuit electric field; a current loop penetrates through the circuit sleeve, the current loop is connected with a current terminal, and the current terminal is used for being connected with a current source so as to inject current into the current loop and realize the simulation of circuit current.
6. The batch testing platform of fault indicators of claim 5, wherein the line sleeve is an annular sleeve having a sleeve window, and the current terminals are led out of the sleeve window.
7. The batch test platform of fault indicators according to claim 5 or 6, wherein the test platform further comprises the voltage source and current source.
8. The batch testing platform of fault indicators according to claim 5 or 6, wherein the line casing is a 0Cr19Ni9 or 0Cr18Ni9 stainless steel tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811482981.2A CN110596631A (en) | 2018-12-05 | 2018-12-05 | Fault indicator batch detection platform and suspension line thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811482981.2A CN110596631A (en) | 2018-12-05 | 2018-12-05 | Fault indicator batch detection platform and suspension line thereof |
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| Publication Number | Publication Date |
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| CN110596631A true CN110596631A (en) | 2019-12-20 |
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| CN201811482981.2A Withdrawn CN110596631A (en) | 2018-12-05 | 2018-12-05 | Fault indicator batch detection platform and suspension line thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113533901A (en) * | 2021-07-09 | 2021-10-22 | 国网安徽省电力有限公司电力科学研究院 | Fault indicator detection table body |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205404690U (en) * | 2015-10-20 | 2016-07-27 | 福建省宏科电力科技有限公司 | Fault indicator testing arrangement |
| CN107219488A (en) * | 2017-08-03 | 2017-09-29 | 许昌开普检测技术有限公司 | A kind of digitlization real-time simulation platform suitable for fault detector automatic detection |
| CN107907791A (en) * | 2017-10-31 | 2018-04-13 | 国网湖南省电力公司 | A kind of automatic checkout system and detection method of distribution network failure indicator |
| CN108614229A (en) * | 2018-05-25 | 2018-10-02 | 国网浙江省电力有限公司电力科学研究院 | Distribution line fault detector Function detection platform and detection method under extreme environment |
-
2018
- 2018-12-05 CN CN201811482981.2A patent/CN110596631A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205404690U (en) * | 2015-10-20 | 2016-07-27 | 福建省宏科电力科技有限公司 | Fault indicator testing arrangement |
| CN107219488A (en) * | 2017-08-03 | 2017-09-29 | 许昌开普检测技术有限公司 | A kind of digitlization real-time simulation platform suitable for fault detector automatic detection |
| CN107907791A (en) * | 2017-10-31 | 2018-04-13 | 国网湖南省电力公司 | A kind of automatic checkout system and detection method of distribution network failure indicator |
| CN108614229A (en) * | 2018-05-25 | 2018-10-02 | 国网浙江省电力有限公司电力科学研究院 | Distribution line fault detector Function detection platform and detection method under extreme environment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113533901A (en) * | 2021-07-09 | 2021-10-22 | 国网安徽省电力有限公司电力科学研究院 | Fault indicator detection table body |
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Application publication date: 20191220 |
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