CN105866479A - Special clamp for test on low pressure side of main transformer - Google Patents
Special clamp for test on low pressure side of main transformer Download PDFInfo
- Publication number
- CN105866479A CN105866479A CN201610356425.5A CN201610356425A CN105866479A CN 105866479 A CN105866479 A CN 105866479A CN 201610356425 A CN201610356425 A CN 201610356425A CN 105866479 A CN105866479 A CN 105866479A
- Authority
- CN
- China
- Prior art keywords
- test
- insulation board
- main transformer
- pressure side
- special fixture
- 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.)
- Pending
Links
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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Leads Or Probes (AREA)
Abstract
The invention relates to a special clamp for a test on a low pressure side of a main transformer and aims at solving the problems that wiring is inconvenient, the efficiency is relatively low, measured values are inaccurate, and the safety during the test is low when direct-current resistance of the main transformer is tested in the prior art. The clamp comprises a connecting rack, a clamp lock and clamping plate assemblies, wherein each clamping plate assembly comprises an insulating plate, an arc alloy rack and flexible wire connecting bulges, the insulating plate is an arc plate, a fixing plate is machined at one end of the arc plate, a clamping plate is machined at the other end of the arc plate, and one end of the fixing plate on the insulating plate is connected with the fixing plate on the other insulating plate; the clamp lock is fixed to the clamping plate on one insulating plate and stuck on the clamping plate on the other insulating plate; one arc alloy rack is arranged on each arc plate, and an inner arc surface, close to the corresponding insulating plate, of the arc alloy rack is fixed to the side surface of the insulating plate. The clamp is used for the transformer test.
Description
Technical field
The present invention relates to a kind of main transformer low-pressure side test fixture, be specifically related to a kind of for the test of main transformer low-pressure side
Special fixture.
Background technology
Generally known big-and-middle-sized main transformer D.C. resistance test, main transformer low-pressure side to high-pressure side and ground test method be by
High-pressure side binding post short circuit grounding, low-pressure side a-x, b-y, c-z measure respectively.This occurs as soon as testing equipment and low pressure
The connectivity problem of side terminal.It is presently used for D.C. resistance test low-pressure side wiring and mainly uses CSX-II molded line bag
Interior little pinch clamping cap nut.The cap nut that main transformer low-pressure side exposes is the shortest, and crocodile test clamp is not gone up.CSX-II
In molded line bag, little pinch opening is little, and slipping easily occurs in clamping.During measurement, expose unsafe factor.Furthermore use and be wound around
The only strand of copper.Owing to main transformer low-pressure side wiring cylindrical end sub-surface there may be oxide layer, contact resistance increases, to measured value
Easily produce error.In sum, wiring is inconvenient, efficiency is on the low side, and measured value is inaccurate, and during test, safety is low.
Summary of the invention
The present invention is to solve that when big-and-middle-sized main transformer D.C. resistance is tested in prior art, wiring is inconvenient, efficiency is on the low side,
Measured value is inaccurate, the problem that during test, safety is low, and then provides a kind of exclusive clamps for the test of main transformer low-pressure side
Tool.
The present invention solves that the problems referred to above the technical scheme is that its bag link, include clamp lock and two grip block groups
Part, grip block assembly includes insulation board, arcuated alloy tooth bar and flexible cord connection bump, and insulation board is arc, arc
One end is machined with fixed plate, and the other end of arc is machined with grip block, one end of an insulation board upper mounted plate and another
Fixed plate on insulation board is connected by link, and two insulation boards are oppositely arranged, and the grip block on an insulation board is fixed
Being provided with a clamp lock, clamp lock is stuck on the grip block on another insulation board, and a side of each arc is divided
Not being provided with an arcuated alloy tooth bar, arcuated alloy tooth bar intrados on insulation board is fixedly mounted on the side of insulation board
On, and two arcuated alloy tooth bars are oppositely arranged, and the extrados of each alloy tooth bar is machined with a flexible cord respectively and connects convex
Rise.
The invention has the beneficial effects as follows:
When 1, can ensure that test by the special fixture of the present invention, the safety of operation is guaranteed, the structure of the present invention simultaneously
Simple operations is convenient.
2, it is machined with a through hole on the insulation board 5 of the present invention, a chain is installed, it is therefore prevented that special fixture in through hole
The phenomenon being easily lost occurs.
3, it is separately installed with a flexible cord connection bump 6, by flexible cord connection bump 6 on each alloy tooth bar 9 of the present invention
It is connected with copper cash, operation during convenient test, makes operation simpler, save test period.
4, the present invention is directly to be opened by lock 10 when using, and is opened by two grip blocks 2, and main transformer low-voltage terminal is placed on two
Insulation board 5 centre, closes 2-in-1 for two grip blocks, then is locked by lock 10.Easy-to-connect is simple and direct, when reducing wiring
Between.Prevent in conventional process of the test, pinch pinch loosely or external environment factor impact cause come off, it is ensured that test
Safety.By the active force of shell fragment 3 with lock 10, while being clamped by main transformer low-voltage terminal, arcuated alloy tooth bar has surface
Long-pending big advantage.On the one hand can contact very well with main transformer low-voltage terminal.On the other hand main transformer low-voltage terminal surface can be broken
Oxide layer, makes certainty of measurement be effectively improved.
Accompanying drawing explanation
Fig. 1 is overall structure front view of the present invention, Fig. 2 be in Fig. 1 A-A to top view.
Detailed description of the invention
Detailed description of the invention one: combine Fig. 1-Fig. 2 and present embodiment is described, a kind of for main transformer pressure described in present embodiment
The special fixture of device low-pressure side test, its bag link 7, includes clamp lock 10 and two grip block assemblies, grip block assembly
Including insulation board 5, arcuated alloy tooth bar 9 and flexible cord connection bump 6, insulation board 5 is arc, and one end of arc adds
Work has fixed plate 1, and the other end of arc is machined with grip block 2, one end of insulation board 5 upper mounted plate 1 and another
Fixed plate 1 on individual insulation board 5 is connected by link 7, and two insulation boards 5 are oppositely arranged, an insulation board 5
On grip block 2 be installed with a clamp lock 10, clamp lock 10 is stuck in the grip block 2 on another insulation board 5
On, a side of each arc is respectively equipped with an arcuated alloy tooth bar 9, arcuated alloy tooth bar 9 is near insulation board
Intrados on 5 is fixedly mounted on the side of insulation board 5, and two arcuated alloy tooth bars 9 are oppositely arranged, each alloy
A flexible cord connection bump 6 it is machined with respectively on the extrados of tooth bar 9.In present embodiment with clamp lock 10 phase is installed
To being provided with draw-in groove on the grip block 2 of insulation board 5, clamp lock 10 is stuck on draw-in groove, and then ensures two grip block assemblies
It is locked on binding post.
Detailed description of the invention two: combine Fig. 1-Fig. 2 and present embodiment is described, a kind of for main transformer pressure described in present embodiment
The special fixture of device low-pressure side test, each arcuated alloy tooth bar 9 is threaded hole 8, and screwed hole 8 is provided with one
Individual screw, each arcuated alloy tooth bar 9 is arranged on an insulation board 5 by screw, other and detailed description of the invention one phase
With.
Detailed description of the invention three: combine Fig. 1-Fig. 2 and present embodiment is described, a kind of for main transformer pressure described in present embodiment
The special fixture of device low-pressure side test, described arcuated alloy tooth bar 9 is the arcuated alloy tooth bar having Cu alloy material to make, its
It is identical with detailed description of the invention one or two.
Detailed description of the invention four: combine Fig. 1-Fig. 2 and present embodiment is described, a kind of for main transformer pressure described in present embodiment
The special fixture of device low-pressure side test, said two fixed plate 1 is rotationally connected by link 7, other and specific embodiment party
Formula one is identical.
Detailed description of the invention five: combine Fig. 1-Fig. 2 and present embodiment is described, a kind of for main transformer pressure described in present embodiment
The special fixture of device low-pressure side test, described each flexible cord connection bump 6 is installed by welding with an annealed copper wire, other and tool
Body embodiment four is identical.
Detailed description of the invention six: combine Fig. 1-Fig. 2 and present embodiment is described, a kind of for main transformer pressure described in present embodiment
The special fixture of device low-pressure side test, any one insulation board 5 is machined with a through hole 4, other and detailed description of the invention
One is identical.
Detailed description of the invention seven: combine Fig. 1-Fig. 2 and present embodiment is described, a kind of for main transformer pressure described in present embodiment
The special fixture of device low-pressure side test, the thickness of described insulation board 5 is 6mm-10mm, other and detailed description of the invention one
Identical.
Detailed description of the invention eight: combine Fig. 1-Fig. 2 and present embodiment is described, a kind of for main transformer pressure described in present embodiment
The special fixture of device low-pressure side test, described link 7 includes two ' L ' shape bars and two straight-bars, two ' L ' shapes
Bar side by side parallel is arranged, and one end of one end of ' L ' shape bar and another ' L ' the shape bar being positioned at the same side is passed through
One straight-bar is fixing to be connected, the other end of the other end of ' L ' shape bar and another ' L ' the shape bar being positioned at the same side
Connecting by another straight-bar is fixing, other is identical with detailed description of the invention one.
Detailed description of the invention nine: combine Fig. 1-Fig. 2 and present embodiment is described, a kind of for main transformer pressure described in present embodiment
The special fixture of device low-pressure side test, the fixed plate that described fixed plate 1 is made up of insulant, grip block 2 is by insulating
The grip block that material is made, the insulation board that insulation board 5 is made up of insulant, other is identical with detailed description of the invention one.
Detailed description of the invention ten: combine Fig. 1-Fig. 2 and present embodiment is described, a kind of for main transformer pressure described in present embodiment
The special fixture of device low-pressure side test, it also includes shell fragment 3, and the fixing end of shell fragment 3 is fixed on a grip block 2, bullet
The elastic tip of sheet 3 is arranged between two relative grip blocks 2, is separated by two grip blocks 2 by the elastic tip of shell fragment 3
Open, and then ensure that two grip blocks 2 are clamped pinning by clamp lock 10.Other is identical with detailed description of the invention one.
Operation principle
When the present invention works, clamp lock 10 is opened, make two grip blocks 2 separate, two insulation boards 5 are fastened on wiring
On terminal, by arcuated alloy tooth bar 9, this test fixture is clipped on binding post, by clamp lock 10 by two clampings
The fixing locking of plate 2, is connected by two flexible cord connection bumps 6 with mild steel line and is connected with External Test Equipment, and then complete
The purpose of test clamping.
Claims (10)
1. the special fixture for the test of main transformer low-pressure side, it is characterised in that: its bag link (7), include fixture
Lock (10) and two grip block assemblies, grip block assembly includes that insulation board (5), arcuated alloy tooth bar (9) and flexible cord connect
Protruding (6), insulation board (5) is arc, and one end of arc is machined with fixed plate (1), the other end processing of arc
There are grip block (2), one end of an insulation board (5) upper mounted plate (1) and the fixed plate (1) on another insulation board (5)
Connected by link (7), and two insulation boards (5) are oppositely arranged, the grip block (2) on an insulation board (5)
Being installed with a clamp lock (10), clamp lock (10) is stuck on the grip block (2) on another insulation board (5),
Being respectively equipped with an arcuated alloy tooth bar (9) on one side of each arc, arcuated alloy tooth bar (9) is near insulation board
(5) intrados on is fixedly mounted on the side of insulation board (5), and two arcuated alloy tooth bars (9) are oppositely arranged,
A flexible cord connection bump (6) it is machined with respectively on the extrados of each alloy tooth bar (9).
A kind of special fixture for the test of main transformer low-pressure side, it is characterised in that: each
It is threaded hole (8) on arcuated alloy tooth bar (9), and screwed hole (8) is provided with a screw, each arcuated alloy
Tooth bar (9) is arranged on an insulation board (5) by screw.
A kind of special fixture for the test of main transformer low-pressure side, it is characterised in that: described
Arcuated alloy tooth bar (9) is the arcuated alloy tooth bar having Cu alloy material to make.
A kind of special fixture for the test of main transformer low-pressure side, it is characterised in that: described
Two fixed plates (1) are rotationally connected by link (7).
A kind of special fixture for the test of main transformer low-pressure side, it is characterised in that: each
An annealed copper wire it is installed by welding with in flexible cord connection bump (6).
A kind of special fixture for the test of main transformer low-pressure side, it is characterised in that: described
A through hole (4) it is machined with on any one insulation board (5).
7. according to the special fixture for the test of main transformer low-pressure side a kind of described in claim 1 or 6, it is characterised in that:
The thickness of described insulation board (5) is 6mm-10mm.
8. according to the special fixture for the test of main transformer low-pressure side a kind of described in claim 1 or 6, it is characterised in that:
Described link (7) includes that two ' L ' shape bars and two straight-bars, two ' L ' shape bar side by side parallel are arranged, and one
One end of ' L ' shape bar is connected by a straight-bar is fixing with one end of another ' L ' the shape bar being positioned at the same side, one ' L '
The other end of shape bar is connected by another straight-bar is fixing with the other end of another ' L ' the shape bar being positioned at the same side.
9. according to the special fixture for the test of main transformer low-pressure side a kind of described in claim 1 or 6, it is characterised in that:
The fixed plate that described fixed plate (1) is made up of insulant, the grip block that grip block (2) is made up of insulant,
The insulation board that insulation board (5) is made up of insulant.
10. according to the special fixture for the test of main transformer low-pressure side a kind of described in claim 1 or 6, it is characterised in that:
It also includes that shell fragment (3), the fixing end of shell fragment (3) are fixed on a grip block (2), and the elastic tip of shell fragment (3) sets
Put between two relative grip blocks (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610356425.5A CN105866479A (en) | 2016-05-25 | 2016-05-25 | Special clamp for test on low pressure side of main transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610356425.5A CN105866479A (en) | 2016-05-25 | 2016-05-25 | Special clamp for test on low pressure side of main transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105866479A true CN105866479A (en) | 2016-08-17 |
Family
ID=56642372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610356425.5A Pending CN105866479A (en) | 2016-05-25 | 2016-05-25 | Special clamp for test on low pressure side of main transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105866479A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107238737A (en) * | 2017-08-09 | 2017-10-10 | 黑龙江省电力有限公司牡丹江水力发电总厂 | A kind of snap joint of magnetic-type electrical test line |
| CN107732574A (en) * | 2017-09-06 | 2018-02-23 | 国网浙江省电力公司嘉兴供电公司 | A kind of transformer test connector |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4901010A (en) * | 1986-08-11 | 1990-02-13 | Universal Technic | Current-measuring device |
| CN2114902U (en) * | 1991-12-28 | 1992-09-02 | 刘名吉 | Transformer wire connection clip |
| CN203479847U (en) * | 2013-09-30 | 2014-03-12 | 国家电网公司 | Wire clamp for testing DC resistance of transformer or loop resistance of circuit breaker |
| CN203951133U (en) * | 2014-05-26 | 2014-11-19 | 广州电力设计院 | Wire clamp and be provided with the indoor substation of this wire clamp |
| CN204086318U (en) * | 2014-08-18 | 2015-01-07 | 广东电网公司珠海供电局 | loop resistance test fixture |
| CN204732542U (en) * | 2015-05-19 | 2015-10-28 | 国家电网公司 | A kind of simple and easy ground network apparatus for examination and repair |
| CN205643416U (en) * | 2016-05-25 | 2016-10-12 | 黑龙江省电力有限公司牡丹江水力发电总厂 | A special fixture for main transformer low tension side is experimental |
-
2016
- 2016-05-25 CN CN201610356425.5A patent/CN105866479A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4901010A (en) * | 1986-08-11 | 1990-02-13 | Universal Technic | Current-measuring device |
| CN2114902U (en) * | 1991-12-28 | 1992-09-02 | 刘名吉 | Transformer wire connection clip |
| CN203479847U (en) * | 2013-09-30 | 2014-03-12 | 国家电网公司 | Wire clamp for testing DC resistance of transformer or loop resistance of circuit breaker |
| CN203951133U (en) * | 2014-05-26 | 2014-11-19 | 广州电力设计院 | Wire clamp and be provided with the indoor substation of this wire clamp |
| CN204086318U (en) * | 2014-08-18 | 2015-01-07 | 广东电网公司珠海供电局 | loop resistance test fixture |
| CN204732542U (en) * | 2015-05-19 | 2015-10-28 | 国家电网公司 | A kind of simple and easy ground network apparatus for examination and repair |
| CN205643416U (en) * | 2016-05-25 | 2016-10-12 | 黑龙江省电力有限公司牡丹江水力发电总厂 | A special fixture for main transformer low tension side is experimental |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107238737A (en) * | 2017-08-09 | 2017-10-10 | 黑龙江省电力有限公司牡丹江水力发电总厂 | A kind of snap joint of magnetic-type electrical test line |
| CN107732574A (en) * | 2017-09-06 | 2018-02-23 | 国网浙江省电力公司嘉兴供电公司 | A kind of transformer test connector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104868403B (en) | A kind of portable 120~400mm2Steel-cored aluminium strand shunt line fixture and application method | |
| CN105866479A (en) | Special clamp for test on low pressure side of main transformer | |
| CN205643416U (en) | A special fixture for main transformer low tension side is experimental | |
| CN201146253Y (en) | Direct pincer type ground wire | |
| CN210863824U (en) | Auxiliary device for loop resistance test of GIS (gas insulated switchgear) | |
| CN207303034U (en) | A kind of all insulation fuse switch | |
| CN202794339U (en) | 10kV handcart switch circuit resistance test wiring assistance device | |
| CN201852920U (en) | Loop resistance test pliers head of handcart switch | |
| CN217561560U (en) | Wiring device for measuring direct current resistance of transformer | |
| CN110364841B (en) | Wiring clamp | |
| CN204243216U (en) | From wiring parallel groove clamp | |
| CN209231397U (en) | With heat dissipation effect and jamproof manganese copper diverter | |
| CN210156571U (en) | Wiring clamp | |
| CN208888277U (en) | A kind of electrical equipment test auxiliary contact pin | |
| CN208385651U (en) | On-load Special-shaped parrel-slot cable clamp can be charged | |
| CN205264864U (en) | Power station bonding fastener | |
| CN204631172U (en) | Small area analysis open loop test load device | |
| CN203150737U (en) | Fastening type equipment wire clamp | |
| CN206960521U (en) | A kind of circuit-breaker testing contact electric wire connecting junction | |
| CN219833054U (en) | Multifunctional fool-proof wiring terminal | |
| CN203180111U (en) | Fastening type equipment wire clamp | |
| CN204243233U (en) | Fastening-type wire connection device | |
| CN108872649A (en) | A kind of cable determines phase auxiliary device | |
| CN214174461U (en) | Large-current detection clamp for storage battery | |
| CN210166426U (en) | Universal meter with improved structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160817 |
|
| WD01 | Invention patent application deemed withdrawn after publication |