CN108988185A - A method of extending the electrical connector time between overhauls(TBO) - Google Patents
A method of extending the electrical connector time between overhauls(TBO) Download PDFInfo
- Publication number
- CN108988185A CN108988185A CN201810616540.0A CN201810616540A CN108988185A CN 108988185 A CN108988185 A CN 108988185A CN 201810616540 A CN201810616540 A CN 201810616540A CN 108988185 A CN108988185 A CN 108988185A
- Authority
- CN
- China
- Prior art keywords
- connector
- dynamic
- electrical equipment
- static contact
- disconnecting switch
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacturing Of Electrical Connectors (AREA)
- Manufacture Of Switches (AREA)
Abstract
The present invention relates to a kind of methods for extending the electrical connector time between overhauls(TBO), comprising: is cleaned, is repaired and metal brush-plating to the dynamic and static contact surface of electrical equipment connector and disconnecting switch；Processing is sealed to the gap of surrounding after electrical equipment overlapping splice.The present invention can be realized the removing oxide, dunghill in the case where the dynamic and static contact surface coat of metal of device junction and disconnecting switch is lossless, avoid the hidden danger that equipment is run in spite of illness in short term.By the encapsulation process in butt joint surrounding gap, the intrusion of the substances such as ambient atmos, water mist, dust can be reduced, slows down dirty, the oxidation, corrosion rate of connector interior surface, to improve the service life of connector and extend the time between overhauls(TBO).
Description
Technical field
The invention belongs to electric power apparatus examination fields, and in particular to a kind of method for extending the electrical connector time between overhauls(TBO).
Background technique
Currently, a large amount of electrical equipment connector is used in the power system, within a time between overhauls(TBO), because of conductor joint heating
Electrical equipment the case where being overhauled out of service is caused to happen occasionally, and because connector is large number of, by the interruption maintenance time
The factors such as limitation restrict, and cannot fulfil the maintenance principle of " should repair required, it is required good to repair ", connector repair rate is high, to power transformation
Maintenance causes greatly to perplex.
, mainly there are following several respects in the reason of leading to conductor joint heating: 1, due to connector and the dynamic and static contact of disconnecting switch it
Between surface flatness there are error, there are gap, the substances such as extraneous gas, water mist, dust to invade overlapping splice face for surrounding
Afterwards, it is trapped in connector, makes the certain point or a certain region accelerated oxidation, corrosion in connector, contact resistance is caused to increase and send out
Heat；2, the electric arc burn contact surface silver metal coating that the dynamic and static contact of long-term drawing disconnecting switch generates forms craterlet, causes
Contact resistance increases and generates heat between dynamic and static contact；3, the dynamic and static contact of disconnecting switch occurs due to fastening spring longtime running
Fastening spring fatigue leads to sound, the decline of contact pressure, contact resistance between sound, contact is caused to increase and generate heat.
The method for solving conductor joint heating at present mainly has: 1, carrying out to contact, the fingertip of the connector, disconnecting switch that have burn
Integral replacing after carrying out polishing cleaning to burn site, fills up that " electric power is compound in the case where no spare unit, spare part in pit-hole
Rouge " temporarily repairs the conducting surface of connector, the contact of disconnecting switch, fingertip；2, to having oxidation, filthy connector, disconnecting switch
Contact, fingertip after carrying out polishing cleaning to its surface, replace silver, tin metal coating, using " electric force compounded grease " coating to mention
The anti-oxidant and anti-galvano-cautery performance of high connector.But limited by factors such as " electric force compounded grease " shelf-lifves, cannot thoroughly it restore
The physics of connector, chemical property.Make connector, the contact of disconnecting switch, fingertip interior surface accelerated oxidation, corrosion (in copper aluminium mistake
Plate particularly evident between connector and the dynamic and static contact of disconnecting switch), service life and time between overhauls(TBO) so as to shorten connector.
Summary of the invention
It against the above deficiency, can the purpose of the present invention is to provide a kind of method for extending the electrical connector time between overhauls(TBO)
It is effectively isolated, is cleaned the pollutant of joint surface, slows down connector oxidation rate, to solve the problems, such as conductor joint heating.
A method of extending the electrical connector time between overhauls(TBO), comprising:
Step S100: it is cleaned using dynamic and static contact surface of the laser to electrical equipment connector and disconnecting switch；
Step S200: it is repaired by dynamic and static contact surface of the cold welding to electrical equipment connector and disconnecting switch；
Step S300: to the dynamic and static contact surface metal brush-plating of electrical equipment connector and disconnecting switch；
Step S400: processing is sealed to the gap of surrounding after electrical equipment overlapping splice.
Preferably, the step S300 includes:
Step S301: electrolyte is dipped using plated pen, workpiece is scrubbed repeatedly；
Step S302: it dips bottoming liquid and is uniformly smeared in workpiece surface；
Step S303: it dips silver-plated or tin titer and is uniformly smeared repeatedly on workpiece.
Preferably, described silver-plated or tin titer can be by changing voltage adjustment in the reaction speed of workpiece surface.
Preferably, the cold welding is implemented by cold welding machine.
Preferably, the discharge cycle of the cold welding machine is 10-3~10-1Second, discharge time 10-6~10-5Second.
Preferably, electrode material and junction contacts position can be heated to 8000~10000 DEG C by the cold welding machine.
Preferably, the metal is any one in silver and tin.
Preferably, the material that the encapsulation process uses is room temperature one-pack type organosilicon joint sealant.
Preferably, the use temperature of the room temperature one-pack type organosilicon joint sealant is -60 DEG C~260 DEG C.
Preferably, it after the completion of according to the method to the dynamic and static contact processing of electrical equipment connector and disconnecting switch, establishes
Data archival library.
Bring of the present invention has the beneficial effect that
1, by can be realized removal connector and keep apart using laser cleaning, cold welding repairing, joint surface metal brush-plating
Oxide, the dunghill of the dynamic and static contact surface coat of metal closed, improve existing substation equipment maintenance and repair technique, avoid equipment
The hidden danger run in spite of illness in short term, reduces repair and maintenance cost；
2, after overlapping device junction, by being blocked in surrounding gap with sealant, ambient atmos, water can be effectively reduced
The intrusion of the substances such as mist, dust slows down dirty, the oxidation, corrosion rate of connector interior surface, improves the service life and inspection of connector
Repair the period.
Detailed description of the invention
Fig. 1 is a kind of method flow diagram for extending the electrical connector time between overhauls(TBO) provided in an embodiment of the present invention.
Specific embodiment
Technical solution of the present invention is described in detail with reference to the accompanying drawings and examples.
As shown in Figure 1, the present invention is rationally to provide a kind of method for extending the electrical connector time between overhauls(TBO), comprising:
Step S100: the dynamic and static contact surface of electrical equipment connector and disconnecting switch is cleaned.
In the present embodiment, using laser in place mechanical friction to the dynamic and static contact of electrical equipment connector and disconnecting switch
The substances such as oxidation, the filth on surface are cleaned, and the dynamic and static contact surface to electrical equipment connector and disconnecting switch is avoided to cause
Damage.Mechanical cleaning is often contact cleaning, and the medium on the surface or cleaning that are easy to damage object is attached to cleaned material
The surface of body and not can be removed, cause generate secondary pollution.Laser cleaning have without grinding and it is untouchable, can remove various
Various types of pollutants of material surface reach the cleannes routinely cleaned and be unable to reach.
Step S200: the dynamic and static contact surface of electrical equipment connector and disconnecting switch is repaired.
In the present embodiment, by cold welding to generate burn, the electrical equipment connector of mechanical failure and disconnecting switch it is dynamic,
Static contact faced joint is repaired.By using cold welding machine, using charging capacitor, with 10-3~10-1The period of second, 10-6~
10-5The ultra-short Time electric discharge of second, is heated to 8000~i0000 DEG C for electrode material and junction contacts position, plasma state
Molten metal the surface of workpiece is transitioned into a manner of metallurgy, alloy chemical combination is generated between base material, to inside workpiece
Diffusion, infiltration form diffusion layer, obtain high-intensitive combination.And the heat that welding generates can be diffused by connector basic body
The external world, the processed position of connector do not have the aggregation of heat, will not butt joint cause to damage.
Step S300: to the dynamic and static contact surface metal brush-plating of electrical equipment connector and disconnecting switch.
In the present embodiment, the original physics of dynamic and static contact and chemistry to restore electrical equipment connector and disconnecting switch
Performance needs to dock head surface metal brush-plating, it is preferable to use silver or tin are as brush plating material.Specifically brush plating process includes:
Step S301: dipping electrolyte using plated pen and scrub repeatedly to workpiece, cleaning workpiece surface smut；
Step S302: it dips bottoming liquid and is uniformly smeared in workpiece surface, make silver-plated or tin Adhesion enhancement；
Step S303: it dips silver-plated or tin titer and is uniformly smeared repeatedly on workpiece.
It should be noted that during silver-plated or tin titer can be adjusted in workpiece surface by changing voltage
Reaction speed.
Step S400: processing is sealed to the gap of surrounding after electrical equipment overlapping splice.
Since the flatness on surface between connector and the dynamic and static contact of disconnecting switch is there are error, there are gaps for surrounding, outside
After the substances such as gas, water mist, the dust on boundary invade overlapping splice face, it be easy to cause certain point or some region of oxidation in connector
And therefore corrosion in the present embodiment, is needed to carrying out encapsulation process after electrical equipment overlapping splice.The present embodiment selects " room
Warm one-pack type organosilicon joint sealant " as gap at joint sealing material, can -60 DEG C~260 DEG C at a temperature of it is long
Phase uses, and rubber elastomer can be formed after solidification, has acid and alkali resistance solvent, weather resistance, oil resistant, chemical-resistant resistance and resistance to height
Warm nature energy, when solidification do not absorb heat, not heat release, and solidification post-shrinkage ratio is small, cementability is good.
After being completed by the above method to the processing of the dynamic and static contact of electrical equipment connector and disconnecting switch, the present invention is real
Example is applied also by establishing data archival library, to realize fining maintenance.
The present invention is compiled according to conductor resistance value calculation formula, i.e. R=ρ * L/S (ρ: resistivity, L: length, S: sectional area)
Theory " resistance value " table of comparisons of various materials under various sectional areas is made.After overlapping splice, contact resistance value does not surpass
The empirical criteria for crossing same area, length resistance value 20% checks on to the quality of processing rear joint, and records " contact electricity
The data such as resistance value ", date.It is convenient within next time between overhauls(TBO), by measured value and the data comparison that records over the years, judgement is connect
The degradation and operating condition of head interior surface realize fining maintenance purpose, and reduce maintenance artificial, working hour and maintenance at
This expenditure.
The above is only presently preferred embodiments of the present invention, is not that the invention has other forms of limitations, is appointed
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
Imitate embodiment.But without departing from the technical solutions of the present invention, according to the technical essence of the invention to above embodiments institute
Any simple modification, equivalent variations and the remodeling made, still fall within the protection scope of technical solution of the present invention.
Claims (10)
1. a kind of method for extending the electrical connector time between overhauls(TBO), comprising:
Step S100: it is cleaned using dynamic and static contact surface of the laser to electrical equipment connector and disconnecting switch；
Step S200: it is repaired by dynamic and static contact surface of the cold welding to electrical equipment connector and disconnecting switch；
Step S300: to the dynamic and static contact surface metal brush-plating of electrical equipment connector and disconnecting switch；
Step S400: processing is sealed to the gap of surrounding after electrical equipment overlapping splice.
2. the step S300 includes: the method according to claim 1, wherein preferred
Step S301: electrolyte is dipped using plated pen, workpiece is scrubbed repeatedly；
Step S302: it dips bottoming liquid and is uniformly smeared in workpiece surface；
Step S303: it dips silver-plated or tin titer and is uniformly smeared repeatedly on workpiece.
3. according to the method described in claim 2, it is characterized in that, described silver-plated or tin titer is fast in the reaction of workpiece surface
Degree can be by changing voltage adjustment.
4. the method according to claim 1, wherein the cold welding is implemented by cold welding machine.
5. according to the method described in claim 4, it is characterized in that, the discharge cycle of the cold welding machine is 10-3~10-1Second, it puts
The electric time is 10-6~10-5Second.
6. according to the method described in claim 4, it is characterized in that, the cold welding machine can be by electrode material and junction contacts portion
Position is heated to 8000~10000 DEG C.
7. the method according to claim 1, wherein the metal is any one in silver and tin.
8. the method according to claim 1, wherein the material that the encapsulation process uses is room temperature one-pack type
Organosilicon joint sealant.
9. according to the method described in claim 8, it is characterized in that, the room temperature one-pack type organosilicon joint sealant makes
It is -60 DEG C~260 DEG C with temperature.
10. the method according to claim 1, wherein to electrical equipment connector and keeping apart according to the method
After the completion of the dynamic and static contact processing closed, data archival library is established.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810616540.0A CN108988185A (en) | 2018-06-12 | 2018-06-12 | A method of extending the electrical connector time between overhauls(TBO) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810616540.0A CN108988185A (en) | 2018-06-12 | 2018-06-12 | A method of extending the electrical connector time between overhauls(TBO) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108988185A true CN108988185A (en) | 2018-12-11 |
Family
ID=64540527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810616540.0A Pending CN108988185A (en) | 2018-06-12 | 2018-06-12 | A method of extending the electrical connector time between overhauls(TBO) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108988185A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109861123A (en) * | 2019-02-21 | 2019-06-07 | 陆春杰 | A kind of dynamic device of plug retracting increasing of switch cabinet handcart formula breaker |
| CN111128603A (en) * | 2019-12-30 | 2020-05-08 | 中泰福安(东莞)电子科技有限公司 | Method for reducing contact impedance |
| CN112226794A (en) * | 2020-10-19 | 2021-01-15 | 广东电网有限责任公司电力科学研究院 | Method for repairing contact surface of joint of electrical equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101451256A (en) * | 2008-12-09 | 2009-06-10 | 中国西电电气股份有限公司 | Brush plating method of aluminium alloy conductor surface silver layer |
| CN101635210A (en) * | 2009-08-24 | 2010-01-27 | 西安理工大学 | Method for repairing defect in tungsten copper-copper integral electric contact material |
-
2018
- 2018-06-12 CN CN201810616540.0A patent/CN108988185A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101451256A (en) * | 2008-12-09 | 2009-06-10 | 中国西电电气股份有限公司 | Brush plating method of aluminium alloy conductor surface silver layer |
| CN101635210A (en) * | 2009-08-24 | 2010-01-27 | 西安理工大学 | Method for repairing defect in tungsten copper-copper integral electric contact material |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109861123A (en) * | 2019-02-21 | 2019-06-07 | 陆春杰 | A kind of dynamic device of plug retracting increasing of switch cabinet handcart formula breaker |
| CN109861123B (en) * | 2019-02-21 | 2020-05-08 | 红光电气集团有限公司 | Plug winding and driving device of handcart type circuit breaker of switch cabinet |
| CN111128603A (en) * | 2019-12-30 | 2020-05-08 | 中泰福安(东莞)电子科技有限公司 | Method for reducing contact impedance |
| CN112226794A (en) * | 2020-10-19 | 2021-01-15 | 广东电网有限责任公司电力科学研究院 | Method for repairing contact surface of joint of electrical equipment |
| CN112226794B (en) * | 2020-10-19 | 2022-03-15 | 广东电网有限责任公司电力科学研究院 | Method for repairing contact surface of joint of electrical equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108988185A (en) | A method of extending the electrical connector time between overhauls(TBO) | |
| CN103506725B (en) | The preparation method of target material assembly | |
| JP7010953B2 (en) | Cable junction and termination for high power transmission cables | |
| CN101436653A (en) | Technique for making lithium battery pole ear | |
| EP4383469A1 (en) | Charging socket and vehicle | |
| RU2516189C2 (en) | Method for application of metal coating to current-transmitting surfaces of dismountable contact connections | |
| CN103192226A (en) | Method for remedying water-eroded defects on finished surface of engine cylinder block | |
| Wang et al. | Damage mechanism of crown spring for the EMU traction Motor’s connector | |
| CN102049625A (en) | Heat release welding process for grounding electrode facility of power grid direct current engineering | |
| CN103658898B (en) | Welding method of target assembly | |
| US7504009B2 (en) | Method for the formation of a good contact surface on an aluminium support bar and a support bar | |
| CN112226794B (en) | Method for repairing contact surface of joint of electrical equipment | |
| WO2022257765A1 (en) | Improvement method for overheating of excitation-based disconnector or overheating of high-power disconnector | |
| CN212342745U (en) | Power battery pack upper and lower shell equipotential connecting device and battery pack | |
| CN112615170A (en) | Electric primary equipment joint and heating processing method thereof | |
| CN106862691B (en) | A kind of copper-aluminium transition connection terminal soldering method | |
| CN211089584U (en) | Photovoltaic junction box | |
| FI114927B (en) | A method of forming a good contact surface with a cathode support bar and a support bar | |
| JP6915204B2 (en) | Method of forming a conductive protective film | |
| CN110064807A (en) | A kind of welding method reducing electrolyzer electric pressure drop | |
| CN102400204B (en) | Device for electrochemically polishing and passivating surface of stainless steel product on spot | |
| CN102510584B (en) | Manufacturing method of bonded heating sheets | |
| CN103192227B (en) | The restorative procedure of engine cylinder block blank surface water erosion defect | |
| CN109158365A (en) | A kind of glass cover-plate takes off ink and takes off electroplating method | |
| CN105252099A (en) | Method for welding diamond vacuum window by utilizing microwave plasma |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181211 |
|
| RJ01 | Rejection of invention patent application after publication |