CN109406840A - Adjustable handcart circuit breaker loop resistance measurement auxiliary tool - Google Patents
Adjustable handcart circuit breaker loop resistance measurement auxiliary tool Download PDFInfo
- Publication number
- CN109406840A CN109406840A CN201811387860.XA CN201811387860A CN109406840A CN 109406840 A CN109406840 A CN 109406840A CN 201811387860 A CN201811387860 A CN 201811387860A CN 109406840 A CN109406840 A CN 109406840A
- Authority
- CN
- China
- Prior art keywords
- copper pipe
- circuit breaker
- loop resistance
- handle
- resistance measurement
- 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.)
- Granted
Links
- 238000005259 measurement Methods 0.000 title claims abstract description 29
- 238000009530 blood pressure measurement Methods 0.000 claims abstract description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 60
- 229910052802 copper Inorganic materials 0.000 claims description 60
- 239000010949 copper Substances 0.000 claims description 60
- 238000012423 maintenance Methods 0.000 abstract description 8
- 241000270722 Crocodylidae Species 0.000 description 3
- LNNWVNGFPYWNQE-GMIGKAJZSA-N desomorphine Chemical compound C1C2=CC=C(O)C3=C2[C@]24CCN(C)[C@H]1[C@@H]2CCC[C@@H]4O3 LNNWVNGFPYWNQE-GMIGKAJZSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003862 health status Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000004832 voltammetry Methods 0.000 description 1
Classifications
-
- 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
- G01R1/0416—Connectors, terminals
-
- 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
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Breakers (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a kind of adjustable handcart circuit breaker loop resistance measurement auxiliary tools, mainly include handle, pressure measurement display and variable-diameter contact；Pressure measurement display is mounted on handle, and the setting of variable-diameter contact is covered in handle head.It can assist completing handcart circuit breaker loop resistance measurement and contact pressure measurement simultaneously using the present invention, improve working efficiency；And variable-diameter contact can slide variable diameter as needed, adapt to various model Mume flower contacts, simplify workflow, reduce maintenance management cost.
Description
Technical field
The invention belongs to handcart circuit breaker detection instruments more particularly to a kind of adjustable handcart circuit breaker loop resistance to survey
Measure auxiliary tool.
Background technique
Handcart type breaker is widely used in power plant and substation makees the control and protection of electric utility.Loop resistance and plum
The contact pressure of flower contact is to assess the key parameter of handcart type breaker health status, existing mainstream measuring technique scheme handle
This two parameters are measured with different measuring devices respectively:
Loop resistance measurement is traditional voltammetry, straight using the logical upper 100A of special equipment between Mume flower contact A, B
Then galvanic electricity measures the voltage between A, B, obtains loop resistance；The importing way of contact of its DC current has: crocodile wire clamp,
The tower-like copper contact of fixed copper contact, ladder.
Contact pressure measurement is the diameter according to Mume flower contact, selects suitable two-flap type pressure measurement to pop one's head in and is mounted on folder
On tool, it is inserted into Mume flower contact later, reads pressure value with pressure-measuring device.
There are shortcomings for aforesaid way, comprising:
1, when measuring loop resistance, the contact surface of crocodile wire clamp and Mume flower contact is smaller, is easy when by testing electric current greatly
Poor contact influences measurement accuracy, or even generates high temperature and burn damage Mume flower contact.
If needing standby a variety of various sizes of copper contacts 2, using fixed copper contact, being unfavorable for maintenance management.
3, the tower-like copper contact of ladder is adapted to the Mume flower contact of several diameters, since the depth inside Mume flower contact has
Limit, but tower-like shape causes the diameter quantity being suitable for be restricted.
4, when measuring contact pressure, need to install suitable measuring probe on fixture according to Mume flower contact size, it is mating
Tool and attachment are more, are unfavorable for maintenance management.
5, it measures loop resistance and measurement contact pressure needs to be unfavorable for maintenance management using two sets of different fixtures.
Summary of the invention
That the technical problem to be solved in the present invention is to provide a kind of structures is simple, measurement is convenient, safe and reliable adjustable
Handcart circuit breaker loop resistance measurement auxiliary tool is contacted for subsidiary handcart type breaker loop resistance and Mume flower contact
Pressure.
In order to solve the above technical problems, the invention adopts the following technical scheme:
Adjustable handcart circuit breaker loop resistance measurement auxiliary tool, mainly include handle, pressure measurement display and
Variable-diameter contact；Pressure measurement display is mounted on handle, and the setting of variable-diameter contact is covered in handle head.
Variable-diameter contact is made up of limiting slot socket multistage copper pipe using handle as axis from inside to outside.
Variable-diameter contact is made up of limiting slot socket quadravalence copper pipe using handle as axis from inside to outside, the first rank copper pipe
It is fixed on handle, second-order copper pipe passes through the limiting slot being arranged in outside the first rank copper pipe and is socketed in outside the first rank copper pipe, third
Rank copper pipe passes through the limiting slot that is arranged in outside second-order copper pipe and is socketed in outside second-order copper pipe, and fourth order copper pipe is by setting the
Limiting slot outside three rank copper pipes is socketed in outside third rank copper pipe.
First rank copper pipe is fixed with pressure sensor.
Copper pipe cutting is along symmetrical two valve of handle.
Current line binding post and pressure-wire binding post are equipped on copper pipe.
Current line binding post and pressure-wire binding post use aviation plug or connecting terminal.
Pressure measurement display is using single-chip microcontroller, PLC or hand-held intelligent equipment as core.
Existing handcart type breaker crucial parameter measurement there are aiming at the problem that, inventor has designed and produced a kind of adjustable
Formula handcart circuit breaker loop resistance measurement auxiliary tool mainly includes handle, pressure measurement display and variable-diameter contact；Pressure
Power measurement display is mounted on handle, and the setting of variable-diameter contact is covered in handle head.It can have been assisted simultaneously using the present invention
It is measured at handcart circuit breaker loop resistance measurement and contact pressure, improves working efficiency；And variable-diameter contact can be according to need
Variable diameter is slided, various model Mume flower contacts are adapted to, simplifies workflow, reduce maintenance management cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of existing handcart type breaker.
Fig. 2 is the structural schematic diagram of the adjustable handcart circuit breaker loop resistance measurement auxiliary tool of the present invention.
Fig. 3 is that the adjustable handcart circuit breaker loop resistance measurement auxiliary tool use state of the present invention and variable diameter process are shown
It is intended to.
In figure: 1 handcart type breaker, 2 Mume flower contacts, 3 pressure measurement displays, 4 pressure sensors, 5 first rank copper pipes,
6 second-order copper pipes, 7 third rank copper pipes, 8 fourth order copper pipes, 9 handles.
Specific embodiment
As shown in Figure 1 to Figure 3, adjustable handcart circuit breaker loop resistance measurement auxiliary tool of the invention, it is main to wrap
Include handle, pressure measurement display 3 and variable-diameter contact；Pressure measurement display is mounted on handle, variable-diameter contact
Setting covers on 9 head of handle.Wherein,
Variable-diameter contact passes through limiting slot using handle as axis by quadravalence copper pipe from inside to outside (can also be replaced with hinge or pin shaft
Generation) it is socketed composition, the first rank copper pipe 5 is fixed on handle, and second-order copper pipe 6 passes through the limit being arranged in outside the first rank copper pipe
Slot is socketed in outside the first rank copper pipe, and third rank copper pipe 7 passes through the limiting slot being arranged in outside second-order copper pipe and is socketed in second-order copper
Pipe is outer, and fourth order copper pipe 8 passes through the limiting slot being arranged in outside third rank copper pipe and is socketed in outside third rank copper pipe.Copper pipe cutting is edge
Symmetrical two valve of handle, every valve are provided with limiting slot, make copper pipe that can only slide axially to prevent from misplacing；It is all provided on copper pipe
There are current line binding post and pressure-wire binding post, aviation plug or connecting terminal can be used in binding post.Pressure measurement display with
Single-chip microcontroller, PLC or hand-held intelligent equipment are core, and the side that the first rank copper pipe is contacted with Mume flower contact is fixed with pressure sensing
Device 4, to be inserted into the contact pressure of measurement different-diameter Mume flower contact.
Since the copper pipe of different-diameter is nested together to form variable-diameter contact around handle, when use, can be according to plum to be measured
The diameter of flower contact skids off the copper pipe of corresponding diameter, has current line and pressure-wire binding post for loop resistance measurement on copper pipe.
Compared with existing measurement method, the present invention has advantage following prominent:
1, when measuring loop resistance, for the present invention since contact surface is big, diameter sliding is variable, overcomes crocodile wire clamp and is easy to connect
Touch that bad measurement is inaccurate, high temperature is burnt；Fixed copper contact is overcome, standby a variety of various sizes of copper contacts is needed, is unfavorable for
Maintenance management；The tower-like copper contact of ladder is overcome since size is too big, the diameter limited amount being suitable for.
2, when measuring contact pressure, tool contact diameter sliding of the invention is variable, avoids existing scheme and needs to dismount
The problem of replacing different-diameter probe, reduces attachment quantity, Optimal Maintenance management.
3, the present invention can assist simultaneously complete 1 different-diameter Mume flower contact 2 of handcart circuit breaker loop resistance measurement and
Contact pressure measurement, it is only necessary to kit can complete under prior art must two sets of standalone tools be just able to achieve
Work is measured, so workflow can be simplified, reduce maintenance management cost.
Claims (8)
1. a kind of adjustable handcart circuit breaker loop resistance measurement auxiliary tool, it is characterised in that mainly include handle, pressure
Measure display and variable-diameter contact；The pressure measurement display is mounted on handle, and the setting of variable-diameter contact covers
Handle head.
2. adjustable handcart circuit breaker loop resistance measurement auxiliary tool according to claim 1, it is characterised in that: institute
It states variable-diameter contact and is made up of from inside to outside limiting slot socket multistage copper pipe using handle as axis.
3. adjustable handcart circuit breaker loop resistance measurement auxiliary tool according to claim 2, it is characterised in that: institute
It states variable-diameter contact and is made up of from inside to outside limiting slot socket quadravalence copper pipe using handle as axis, the first rank copper pipe is fixed on
On handle, second-order copper pipe passes through the limiting slot being arranged in outside the first rank copper pipe and is socketed in outside the first rank copper pipe, third rank copper pipe
It is socketed in outside second-order copper pipe by the limiting slot being arranged in outside second-order copper pipe, fourth order copper pipe is by being arranged in third rank copper
Limiting slot outside pipe is socketed in outside third rank copper pipe.
4. adjustable handcart circuit breaker loop resistance measurement auxiliary tool according to claim 3, it is characterised in that: institute
The first rank copper pipe is stated to fix with pressure sensor.
5. adjustable handcart circuit breaker loop resistance measurement auxiliary tool according to claim 4, it is characterised in that: institute
Stating copper pipe cutting is along symmetrical two valve of handle.
6. adjustable handcart circuit breaker loop resistance measurement auxiliary tool according to claim 5, it is characterised in that: institute
It states and is equipped with current line binding post and pressure-wire binding post on copper pipe.
7. adjustable handcart circuit breaker loop resistance measurement auxiliary tool according to claim 6, it is characterised in that: institute
Current line binding post and pressure-wire binding post are stated using aviation plug or connecting terminal.
8. adjustable handcart circuit breaker loop resistance measurement auxiliary tool according to claim 1, it is characterised in that: institute
Pressure measurement display is stated using single-chip microcontroller, PLC or hand-held intelligent equipment as core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811387860.XA CN109406840B (en) | 2018-11-20 | 2018-11-20 | Adjustable handcart circuit breaker loop resistance measurement appurtenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811387860.XA CN109406840B (en) | 2018-11-20 | 2018-11-20 | Adjustable handcart circuit breaker loop resistance measurement appurtenance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109406840A true CN109406840A (en) | 2019-03-01 |
| CN109406840B CN109406840B (en) | 2024-05-31 |
Family
ID=65474220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811387860.XA Active CN109406840B (en) | 2018-11-20 | 2018-11-20 | Adjustable handcart circuit breaker loop resistance measurement appurtenance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109406840B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN113777363A (en) * | 2021-08-24 | 2021-12-10 | 国网福建省电力有限公司南安市供电公司 | Variable-diameter pre-compression special joint for loop resistance test and working method thereof |
| CN113804341A (en) * | 2021-09-16 | 2021-12-17 | 贵州电网有限责任公司 | Adjustable pressure detection device for contact of isolating switch |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113804341A (en) * | 2021-09-16 | 2021-12-17 | 贵州电网有限责任公司 | Adjustable pressure detection device for contact of isolating switch |
| CN113804341B (en) * | 2021-09-16 | 2024-04-12 | 贵州电网有限责任公司 | Adjustable isolating switch contact pressure detection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109406840B (en) | 2024-05-31 |
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