CN108627698A - Handcart loop resistance tests connection-peg and circuit resistance tester - Google Patents
Handcart loop resistance tests connection-peg and circuit resistance tester Download PDFInfo
- Publication number
- CN108627698A CN108627698A CN201810429663.3A CN201810429663A CN108627698A CN 108627698 A CN108627698 A CN 108627698A CN 201810429663 A CN201810429663 A CN 201810429663A CN 108627698 A CN108627698 A CN 108627698A
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- CN
- China
- Prior art keywords
- peg
- contact
- handcart
- loop resistance
- connection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
Abstract
The present invention provides a kind of handcart loop resistance test connection-peg and circuit resistance testers, it is related to circuit testing devices technical field, it includes simulation contact and wiring component that the handcart loop resistance, which tests connection-peg, and the simulation contact and the wiring component are conductor, and are electrically connected to each other；The shape for the matching hole that the shape of the simulation contact and the fingertip of Mume flower contact are surrounded matches；The simulation contact is for making handcart loop resistance test connection-peg and Mume flower contact be in close contact；The wiring component connects p-wire when being tested for loop resistance.A kind of handcart loop resistance test connection-peg and circuit resistance tester provided in an embodiment of the present invention, can improve the accuracy of measurement result in loop resistance test, and easy to carry.
Description
Technical field
The present invention relates to circuit testing devices technical field, more particularly, to a kind of handcart loop resistance test connection-peg with
Circuit resistance tester.
Background technology
The O＆M quality of Mume flower contact plays very important effect, the common deficiency of Mume flower contact in KYN switchgears
Have fastening spring deformation, loosen, contact deformation, aoxidize, fix steel loop deformation etc..But for 10kV metal-enclosed switchgears
Mume flower contact used in the circuit breaker cart and isolated hand car of cabinet (KYN), is not easy to find its defect in the process of running.It is transporting
In row, infrared imaging temperature measuring cannot directly reflect the temperature conditions at dynamic/static contact, not obtained at Mume flower contact once defect occurs
To timely processing, gently then cause to generate heat at contact, it is heavy then cause that contact is burnt and causes ground short circuit or explosion.
Currently, in the KYN switch cabinet handcart power failure maintenance processes to having put into operation, to check Mume flower contact and static contact
Contact situation, can be checked after busbar power failure, but need to disassemble switch cabinet bus room sealing plate, it is time-consuming and laborious；It can also
Busbar does not have a power failure, and using the tooling conjunction measuring of manufacturer, but tooling volume is big, and is limited by work on the spot scope of activities
System, carries and use is all inconvenient；Alternatively, being tested using circuit resistance tester when busbar does not have a power failure.In loop resistance
When measurement, it is common practice to, the fingertip of Mume flower contact is clamped using instrument connector, passes through certain amperage at Mume flower contact
Electric current, the voltage value at detection current path both ends, then the loop resistance that Mume flower contact contact finger piece is starting point is calculated.
When actual test, this test mode is easy to happen situations such as connector clamps tension spring, connector and fingertip poor contact, causes to measure
Inaccurate or equipment damage.
Invention content
It is tested with loop resistance in view of this, the purpose of the present invention is to provide a kind of handcart loop resistance test connection-pegs
Instrument can improve the accuracy of measurement result in loop resistance test, and easy to carry.
In a first aspect, an embodiment of the present invention provides a kind of handcart loop resistances to test connection-peg, including：Simulate contact with
Wiring component, the simulation contact and the wiring component are conductor, and are electrically connected to each other；The shape of the simulation contact is touched with plum blossom
The shape for the matching hole that the fingertip of head is surrounded matches；The simulation contact for make the handcart loop resistance test connection-peg and
Mume flower contact is in close contact；The wiring component connects p-wire when being tested for loop resistance.
With reference to first aspect, an embodiment of the present invention provides the first possible embodiments of first aspect, wherein should
Contact is simulated to be integrally formed with the wiring component.
The possible embodiment of with reference to first aspect the first, an embodiment of the present invention provides second of first aspect
Possible embodiment, wherein the simulation contact is hollow cylinder.
Second of possible embodiment with reference to first aspect, an embodiment of the present invention provides the third of first aspect
Possible embodiment, wherein have silver coating in the surfaces externally and internally of the simulation contact.
The possible embodiment of with reference to first aspect the first, an embodiment of the present invention provides the 4th kind of first aspect
Possible embodiment, wherein the head of the simulation contact is set as chamfering structure.
With reference to first aspect, an embodiment of the present invention provides the 5th kind of possible embodiments of first aspect, wherein should
The material for simulating contact and the wiring component is brass.
With reference to first aspect, an embodiment of the present invention provides the 6th kind of possible embodiments of first aspect, wherein
The simulation contact tail is provided with handle, which is isolation material.
With reference to first aspect, an embodiment of the present invention provides the 7th kind of possible embodiments of first aspect, wherein
The simulation contact tail is equipped with jack.
The 7th kind of possible embodiment with reference to first aspect, an embodiment of the present invention provides the 8th kind of first aspect
Possible embodiment, wherein the jack is square hole.
Second aspect, the embodiment of the present invention additionally provide a kind of circuit resistance tester, including：Tester main body, and
The handcart loop resistance that one of above-mentioned first aspect and its possible embodiment provide tests connection-peg, the handcart loop resistance
It includes two groups to test connection-peg, and the wiring component of handcart loop resistance test connection-peg is electrically connected with tester main body respectively
It connects.
The embodiment of the present invention brings following advantageous effect：
A kind of handcart loop resistance test connection-peg and circuit resistance tester provided in an embodiment of the present invention, the connection-peg
Including simulation contact and wiring component, the simulation contact and the wiring component are conductor, and are electrically connected to each other；The simulation contact
Shape and the shape of matching hole that is surrounded of fingertip of Mume flower contact match；The simulation contact is for keeping the handcart circuit electric
Resistance test connection-peg and Mume flower contact are in close contact；The wiring component connects p-wire when being tested for loop resistance；It can improve
The accuracy of measurement result in loop resistance test, and it is easy to carry.
Other feature and advantage of the disclosure will illustrate in the following description, alternatively, Partial Feature and advantage can be with
Deduce from specification or unambiguously determine, or by implement the disclosure above-mentioned technology it can be learnt that.
To enable the above objects, features, and advantages of the disclosure to be clearer and more comprehensible, preferred embodiment cited below particularly, and coordinate
Appended attached drawing, is described in detail below.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram that a kind of handcart loop resistance provided in an embodiment of the present invention tests connection-peg；
Fig. 2 is that a kind of scene tested using handcart loop resistance test connection-peg provided in an embodiment of the present invention is shown
It is intended to；
Fig. 3 is a kind of structural schematic diagram of integrated molding formula connection-peg provided in an embodiment of the present invention；
Fig. 4 is the status diagram that a kind of integrated molding formula connection-peg provided in an embodiment of the present invention is inserted into Mume flower contact；
Fig. 5 is a kind of structural schematic diagram of circuit resistance tester provided in an embodiment of the present invention.
Icon：
10- simulates contact；11- wiring components；21- is integrally formed formula connection-peg；22- Mume flower contacts；23- loop resistances are surveyed
Try instrument；The first p-wires of 231-；The second p-wires of 232-；101- chamfering structures；111- square holes；41- handles；51- testers
Main body；52a, 52b- handcart loop resistance test connection-peg.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, shall fall within the protection scope of the present invention.
According to power equipment preventive trial regulation《DL/T 596—1996》Requirement, the conductions of various switchgears returns
Road resistance test, test electric current cannot be less than 100A.Lead to contact electricity due to contact surface oxidation, contact fastening are bad etc.
Resistance increases, and when high current flows through, contact point temperature increases, and more quick access contacting surface aoxidizes for this, and contact resistance is made to further increase,
Major accident will be generated by continuing, it is therefore necessary to constantly or periodically be measured to contact resistance.In vacuum circuit breaker
In maintenance work, loop resistance measurement is vacuum circuit breaker installation, overhauls, the important means of inspection of quality, on vacuum circuit breaker
Mume flower contact can be used for loop resistance measurement.
Currently, when carrying out loop resistance test to Mume flower contact using circuit resistance tester, it is common practice to make
With instrument connector be clamped Mume flower contact fingertip be powered measure, still, this test mode be easy to happen connector clamp tension spring,
Situations such as connector is with fingertip poor contact causes to measure inaccurate or equipment damage.Based on this, provided in an embodiment of the present invention one
Kind of handcart loop resistance test connection-peg and circuit resistance tester can improve the accurate of measurement result in loop resistance test
Property, and portable construction, it is easy to carry.
For ease of understanding the present embodiment, a kind of handcart loop resistance disclosed in the embodiment of the present invention is surveyed first
Examination connection-peg describes in detail.
Embodiment one
As shown in Figure 1, for a kind of structural schematic diagram of handcart loop resistance test connection-peg provided in an embodiment of the present invention,
As seen from Figure 1, which includes the simulation contact 10 being connected with each other and wiring component 11, wherein simulation contact 10 and wiring
Component 11 is conductor, and the shape phase of matching hole that the fingertip of the shape of the simulation contact 10 and Mume flower contact is surrounded
Match.Here, Mume flower contact is a kind of power equipment accessory, because be used in primary circuit, therefore it is also referred to as primary dynamic tactile
Head.Mume flower contact includes contact, supporting rack, tension spring, spring touch finger, and supporting rack is annular, and several contacts are assemblied in supporting rack
Upper composition annular solid.
In the connection-peg, simulation contact 10 is for making handcart loop resistance test connection-peg and Mume flower contact closely connect
It touches, when in use, simulation contact 10 is inserted into the matching hole of Mume flower contact, and the fingertip of Mume flower contact is close with the simulation contact 10
Contact, to simulate contact operating mode of the Mume flower contact with static contact in normal work.
The error that drive test amount is brought is given back in order to reduce the connection-peg resistance of itself, selects material with good conductivity,
Such as brass, the material as simulation contact 10 and wiring component 11.Here, the alloy that brass is made of copper and zinc, by
The brass that copper, zinc form just is called basis brass, and it is special to be known as if it is a variety of alloys that the element by two kinds or more forms
Brass.Brass has stronger wear-resisting property, brass to be commonly used for manufacturing valve, water pipe, air-conditioning connection pipe for internal-external unit and radiator
Deng.
It, can be at least one possible embodiment in addition, for convenience inject the connection-peg in Mume flower contact
Handle is set in the tail portion of the simulation contact 10, handle need to select isolation material, for example, it may be wooden handle or plastics handle
Deng.In addition, in alternatively possible embodiment, can also jack be set in the tail portion of the simulation contact 10, assign this
When connection-peg, it is equipped with the lever handle being adapted with jack, lever handle is inserted into jack, to facilitate user firmly will simulation
Contact 10 is inserted into Mume flower contact, is brought into contact with good.Here, in order to increase the frictional force between lever handle and jack, jack
Shape can be square hole, can also be other holes with corner angle.
For the wiring component 11 in the connection-peg, it can be separate piece, such as binding post or line ear, with welding or
The forms such as threaded connection are electrically connected with simulation contact 10, can also be integrally formed with simulation contact 10, not divided mutually, directly cast
It makes and forms an entirety.Caused by the secondary connection between simulation contact 10 and wiring component 11 can be reduced to greatest extent in this way
Error improves measuring accuracy.
In wherein a kind of embodiment, referring to Fig. 2, for a kind of use handcart loop resistance provided in an embodiment of the present invention
The scene schematic diagram tested of test connection-peg, the connection-peg used in this embodiment are integrally formed formula connection-peg.
In Fig. 2, two-way p-wire is drawn respectively from circuit resistance tester 23, wherein the first p-wire 231, the second p-wire 232
Wire clamp be connected to two and be integrally formed on formula connection-pegs 21, the two are integrally formed formula connection-pegs 21 and are plugged on two respectively
In a Mume flower contact 22, a circuit is formed between two p-wires of circuit resistance tester 23, is then passed to again certain big
Small electric current, test obtains loop resistance value, to complete the detection of rival car loop resistance.
Handcart loop resistance provided in an embodiment of the present invention tests connection-peg, which includes simulation contact and wiring structure
Part, the simulation contact and the wiring component are conductor, and are electrically connected to each other；The shape of the simulation contact and touching for Mume flower contact
The shape for referring to surrounded matching hole matches；The simulation contact is for making handcart loop resistance test connection-peg and plum blossom touch
Head is in close contact；The wiring component connects p-wire when being tested for loop resistance；It can improve in loop resistance test and measure knot
The accuracy of fruit, and it is the connection-peg compact, easy to carry, it is very convenient and practical.
Embodiment two
The embodiment of the present invention describes a kind of integrated molding formula connection-peg and its application.
As shown in figure 3, being a kind of structural schematic diagram of integrated molding formula connection-peg provided in an embodiment of the present invention, in Fig. 3
In the embodiment shown, the simulation contact of the integrated molding formula connection-peg 21 is hollow cylinder, is ensureing that inner ring thicknesses reach
It is this to design the weight for significantly reducing connection-peg in the case of sufficient intensity, it is lighter to carry.
As seen from Figure 3, the wiring component 11 of the connection-peg is two protruding-type structures with square hole 111, when in use,
As shown in figure 4, use can be matched with handle 41, handle 41 is injected in square hole 111, handle 41 is used as handle, passes through and inserts
Two square holes 111 on connector, user can hold handle 41 and carry out grafting, and operation is more laborsaving.Operator's both hands are shaken hands
The both ends of handle 41, force dock connection-peg with the Mume flower contact 22 of switching on/off handcart, it is convenient to which fixed connection-peg is simultaneously arbitrarily slapped
Hold angle.After the completion of docking, extract handle 41 out, the square hole 111 on connection-peg can also provide current line, pressure-wire clamping connection
Position, it is more light and handy easy.
Here, it is additionally provided with silver coating in the surfaces externally and internally of simulation contact, silver coating is easy to polish, and has very strong reflective
Neck and good heat conduction, conduction, welding performance.In electronics industry, communication configuration and instrument industry, generally using plating
Silver improves the welding ability of metal to reduce the resistance of metal parts.Wherein, the coating of electrosilvering is degenerated for guard, is increased
Conductivity, reflective and all refined.Existing frequently-used silver plating liquid is cyanide bath, in order to prevent silver coating from coloring, usually will be into
Row plating posttreatment often soaks bright, chemical and electrochemical passivation, plate noble metal or have several metals or apply embracing layer etc..By
Simulation contact surfaces externally and internally adds silver coating, it is possible to reduce the contact resistance of connection-peg itself further decreases measurement error.Separately
Outside, the head for simulating contact has been also configured to chamfering structure 101, connection-peg can be made to be more easily inserted into Mume flower contact in this way
In 22.
In practical operation, by taking the test of the loop resistance of 1250A models Mume flower contact 22 as an example, integrated molding formula can be designed
Connection-peg 21, wherein simulation contact 10 is designed using hollow cylinder, and inner ring thicknesses require to reach enough intensity.It outer half
For diameter using 24.5mm as standard, head portion (8mm) uses chamfering structure 101 (R=3mm), whole pluggable Mume flower contact 22
Point length is 32.5mm, to mitigate total quality, and with 22 smooth connection of Mume flower contact, and can make Mume flower contact 22 after connecting
Reach due tension.The grafting head-tail is using opening protruding-type structure, and there are in the rectangular of cylindrical diametrically opposed location
41 inserting hole of handle (9 × 9mm), this position also provide clamping connection position for the current line of circuit resistance tester, pressure-wire.This time
Road resistance test connection-peg uses brass material, and surfaces externally and internally has silver coating, can analog switch cabinet static contact material.Separately
Outside, 41 section of matched handle be 9 × 9mm, length 350mm, can be with the rectangular inserting hole phase of loop resistance measurement connection-peg
Connection, connection-peg easy to operation are connected with Mume flower contact 22, not will produce slippage.In use, can 41 liang of hand-held square handle
End, auxiliary dock loop resistance test connection-peg with Mume flower contact 22.
Embodiment three
The embodiment of the present invention additionally provides a kind of circuit resistance tester, as shown in figure 5, being provided in an embodiment of the present invention
A kind of structural schematic diagram of circuit resistance tester, as seen from Figure 5, which includes：Tester main body 51, also
Connection-peg is tested including the handcart loop resistance that one of above-described embodiment one, embodiment two and its possible embodiment provide.
Wherein, handcart loop resistance test connection-peg includes two groups, and handcart loop resistance test connection-peg 52a and handcart circuit electricity
The wiring component of resistance test connection-peg 52b is electrically connected with tester main body 51 respectively.
Circuit resistance tester provided in an embodiment of the present invention, the handcart loop resistance test provided with above-described embodiment are inserted
Connector technical characteristic having the same reaches identical technique effect so can also solve identical technical problem.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Unless specifically stated otherwise, the opposite step of the component and step that otherwise illustrate in these embodiments, digital table
It is not limit the scope of the invention up to formula and numerical value.
In addition, in the description of the embodiment of the present invention unless specifically defined or limited otherwise, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for description purposes only, and is not understood to indicate or imply relative importance.
Finally it should be noted that：Embodiment described above, only specific implementation mode of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, it will be understood by those of ordinary skill in the art that：Any one skilled in the art
In the technical scope disclosed by the present invention, it can still modify to the technical solution recorded in previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover the protection in the present invention
Within the scope of.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of handcart loop resistance tests connection-peg, which is characterized in that including：Simulate contact and wiring component, the simulation
Contact and the wiring component are conductor, and are electrically connected to each other；The fingertip institute of the shape and Mume flower contact of the simulation contact
The shape of the matching hole surrounded matches；
The simulation contact is for making the handcart loop resistance test connection-peg and the Mume flower contact be in close contact；
The wiring component connects p-wire when being tested for loop resistance.
2. handcart loop resistance according to claim 1 tests connection-peg, which is characterized in that the simulation contact with it is described
Wiring component is integrally formed.
3. handcart loop resistance according to claim 2 tests connection-peg, which is characterized in that the simulation contact is hollow
It is cylindrical.
4. handcart loop resistance according to claim 3 tests connection-peg, which is characterized in that in the simulation contact
There is silver coating in outer surface.
5. handcart loop resistance according to claim 2 tests connection-peg, which is characterized in that the head of the simulation contact
It is set as chamfering structure.
6. handcart loop resistance according to claim 1 tests connection-peg, which is characterized in that the simulation contact and described
The material of wiring component is brass.
7. handcart loop resistance according to claim 1 tests connection-peg, which is characterized in that in the simulation contact tail
It is provided with handle, the handle is isolation material.
8. handcart loop resistance according to claim 1 tests connection-peg, which is characterized in that in the simulation contact tail
Equipped with jack.
9. handcart loop resistance according to claim 8 tests connection-peg, which is characterized in that the jack is square hole.
10. a kind of circuit resistance tester, which is characterized in that including：Any one of tester main body and claim 1-9 institute
The handcart loop resistance test connection-peg stated, the handcart loop resistance test connection-peg includes two groups, and the handcart circuit
The wiring component of resistance test connection-peg is electrically connected with the tester main body respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810429663.3A CN108627698A (en) | 2018-05-07 | 2018-05-07 | Handcart loop resistance tests connection-peg and circuit resistance tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810429663.3A CN108627698A (en) | 2018-05-07 | 2018-05-07 | Handcart loop resistance tests connection-peg and circuit resistance tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108627698A true CN108627698A (en) | 2018-10-09 |
Family
ID=63695827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810429663.3A Pending CN108627698A (en) | 2018-05-07 | 2018-05-07 | Handcart loop resistance tests connection-peg and circuit resistance tester |
Country Status (1)
| Country | Link |
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| CN (1) | CN108627698A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111351968A (en) * | 2018-12-21 | 2020-06-30 | 河南平芝高压开关有限公司 | Tool for operation test of circuit breaker |
| CN111351987A (en) * | 2020-04-22 | 2020-06-30 | 国家电网有限公司 | Handcart switch loop resistance test wiring device |
| CN112180249A (en) * | 2020-09-25 | 2021-01-05 | 广东电网有限责任公司 | Switch loop resistance test platform |
| CN112684254A (en) * | 2020-11-26 | 2021-04-20 | 广西电网有限责任公司桂林供电局 | Conductive loop detection device and data return method |
| CN114137312A (en) * | 2020-11-02 | 2022-03-04 | 国网冀北电力有限公司检修分公司 | Loop resistance test assembly |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206557251U (en) * | 2017-03-21 | 2017-10-13 | 国网山西省电力公司晋城供电公司 | A kind of 10kV switching on/off handcarts loop resistance tests special joint |
-
2018
- 2018-05-07 CN CN201810429663.3A patent/CN108627698A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206557251U (en) * | 2017-03-21 | 2017-10-13 | 国网山西省电力公司晋城供电公司 | A kind of 10kV switching on/off handcarts loop resistance tests special joint |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111351968A (en) * | 2018-12-21 | 2020-06-30 | 河南平芝高压开关有限公司 | Tool for operation test of circuit breaker |
| CN111351987A (en) * | 2020-04-22 | 2020-06-30 | 国家电网有限公司 | Handcart switch loop resistance test wiring device |
| CN112180249A (en) * | 2020-09-25 | 2021-01-05 | 广东电网有限责任公司 | Switch loop resistance test platform |
| CN112180249B (en) * | 2020-09-25 | 2022-04-12 | 广东电网有限责任公司 | Switch loop resistance test platform |
| CN114137312A (en) * | 2020-11-02 | 2022-03-04 | 国网冀北电力有限公司检修分公司 | Loop resistance test assembly |
| CN114137312B (en) * | 2020-11-02 | 2023-12-22 | 国网冀北电力有限公司检修分公司 | Loop resistance test assembly |
| CN112684254A (en) * | 2020-11-26 | 2021-04-20 | 广西电网有限责任公司桂林供电局 | Conductive loop detection device and data return method |
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Application publication date: 20181009 |