CN110247324A - The critical fever electrical treatment device of wire clamp - Google Patents
The critical fever electrical treatment device of wire clamp Download PDFInfo
- Publication number
- CN110247324A CN110247324A CN201910520769.9A CN201910520769A CN110247324A CN 110247324 A CN110247324 A CN 110247324A CN 201910520769 A CN201910520769 A CN 201910520769A CN 110247324 A CN110247324 A CN 110247324A
- Authority
- CN
- China
- Prior art keywords
- finger
- upper grip
- lower collet
- disconnector contact
- side disconnector
- 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
- 206010037660 Pyrexia Diseases 0.000 title claims abstract description 19
- 238000009434 installation Methods 0.000 claims abstract description 9
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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)
- Suspension Of Electric Lines Or Cables (AREA)
- Clamps And Clips (AREA)
Abstract
The present invention relates to a kind of critical fever electrical treatment devices of wire clamp.Its main feature is that: including connecting screw (3), it is fixedly installed with upper grip (2) and lower collet (6) respectively on the connecting screw (3), the upper grip (2) and lower collet (6) are U-shaped board and are parallel to each other, left side disconnector contact-finger (7) are equipped among the left side of the upper grip (2) and lower collet (6), and right side disconnector contact-finger is equipped among the right side of the upper grip (2) and lower collet (6), the top and bottom of the left side disconnector contact-finger (7) pass through elastic element respectively and connect with upper grip (2) and lower collet (6), and the top and bottom of the right side disconnector contact-finger are also connect by elastic element with upper grip (2) and lower collet (6) respectively；It further include the installation screw rod (4) of L-type.On-line treatment device clamp heat condition can be carried out using the device, avoids grid switching operation, reduces the repair time.
Description
Technical field
The present invention relates to a kind of critical fever electrical treatment devices of wire clamp.
Background technique
Wire clamp fever is the most common failure of substation equipment, and with the lengthening of the operation time limit, poor contact, rust occurs in equipment
The phenomenon that erosion, aging, is fairly common, and the probability of happening of heating accident is consequently also caused constantly to increase.The heating accident of wire clamp is not if
Processing in time, eventually develops into critical fever, and the deformation for being likely to result in equipment is burnt, and the safety for seriously threatening substation is steady
Fixed operation.Such as at present in administered O&M substation, certain overhauling company, province, most of to have run up to 10 years or more, equipment is become rusty
Than more serious, wire clamp heating accident happens occasionally for erosion, aging phenomenon.Only in certain administrative 330kV substation, in May, 2016 company just
4 crisis heating accidents have occurred.According to the statistics to the nearly 3 years internal heat generation failures of 25 substations, 220kV and following is found
The heating accident of voltage class accounts for 70% or more, i.e. equipment heating under this voltage class is easier to generate heat, and has constituted security risk.
In a conventional manner, it is handled after device clamp fever using power failure.By to a lot of critical fevers of administrative substation
Disposition is counted, and only equipment stops power transmission just averagely the used time 4 hours or so for discovery, and the processing used time that has a power failure is 1.5 hours average.
The entire critical fever processing used time is up to nearly 5.5 hours.It can be seen that the situation that wire clamp heating accident occurs in equipment is quite tight
It is high, in order to rapidly process heating accident, solve the problems, such as to lead to fault spread because of critical fever, it is necessary to develop a kind of dress
Set the wire clamp heat condition for being able to achieve on-line treatment equipment.
Summary of the invention
The object of the present invention is to provide a kind of critical fever electrical treatment devices of wire clamp, being capable of on-line treatment device clamp hair
Hot situation avoids grid switching operation, reduces the repair time.
A kind of critical fever electrical treatment device of wire clamp, its special feature is that: including connecting screw, in the connecting screw
Upper to be fixedly installed with upper grip and lower collet respectively, the upper grip and lower collet are U-shaped board and are parallel to each other, press from both sides on this
It is equipped with left side disconnector contact-finger among the left side of head and lower collet, and is equipped with right knife among the right side of the upper grip and lower collet
Lock fingertip, the top and bottom of the left side disconnector contact-finger pass through elastic element respectively and connect with upper grip and lower collet, and the right side
The top and bottom of side disconnector contact-finger are also connect by elastic element with upper grip and lower collet respectively；It further include the installation of L-type
Installation screw rod one end of screw rod, the L-type is fixedly connected with connecting screw above-mentioned, and its other end is grasped by fastener and insulation
Make bar top to be detachably connected.
Wherein left side disconnector contact-finger and right side disconnector contact-finger beginning at be bent outwardly it is arc-shaped, and left side disconnecting link touch
Refer to that with the linkage section among the disconnector contact-finger of right side be to be flexible coupling.
Wherein it is flexible coupling and refers to and connected by conducting wire.
Wherein the front of left side disconnector contact-finger top and bottom is connect by pushing up spring with upper grip and lower collet, and the left side
The rear portion of disconnector contact-finger top and bottom is connect by tension spring with upper grip and lower collet；Wherein right side disconnector contact-finger upper end is under
The front at end is connect by pushing up spring with upper grip and lower collet, and the rear portion of the right side disconnector contact-finger top and bottom passes through tension spring
It is connect with upper grip and lower collet.
Apparatus of the present invention use simple shunting principle, increase the contact surface between wire clamp using external force, reduce contact electricity
Resistance (generally occur wire clamp loosened screw caused by fever) and make through the one part of current between two wire clamps from shunting
Device passes through, to reduce the direct electric current for crossing wire clamp, while reducing the heating temperature of device clamp.It can be carried out using the device
On-line treatment device clamp heat condition avoids grid switching operation, reduces the repair time.This device tail portion side of being fixed by bolts
Formula is applicable to the wire clamp and conducting wire of various thickness and diameter, installs spring between crimping fingertip and external fixed steel part, increases
Fingertip pressing force has excellent electric property, while double fingertips design, and increase the current-carrying capability of part flow arrangement.
Detailed description of the invention
Accompanying drawing 1 is the structural representation of the present invention.
Specific embodiment
As shown in Figure 1, the present invention provides a kind of critical fever electrical treatment device of wire clamp, including connecting screw 3, at this
Upper grip 2 and lower collet 6 are fixedly installed with by screw thread removably respectively on connecting screw 3, the upper grip 2 and lower collet
6 spacing are adjustable and are horizontal U-shaped board, and this two horizontal U-shaped board size shapes are identical and are parallel to each other, preceding
Connecting screw 3 is stated to pass through and connect from the intermediate connections of two U-shaped boards respectively.
The left side disconnector contact-finger 7 of U-shaped board shape is equipped among the left side of the upper grip 2 and lower collet 6, and in the upper grip
2 and lower collet 6 right side among be equipped with U-shaped board shape right side disconnector contact-finger, the upper end (plate outer wall) of the left side disconnector contact-finger 7 and
Lower end (plate outer wall) is connect by elastic element with upper grip 2 (plate inner wall) and lower collet 6 (plate inner wall) respectively, and the right knife
The upper end (plate outer wall) of lock fingertip and lower end (plate outer wall) also pass through elastic element and upper grip 2 (plate inner wall) and lower collet respectively
6 (plate inner walls) connection；It further include the installation screw rod 4 of L-type, 3 middle part of 4 one end of installation screw rod of the L-type and connecting screw above-mentioned
It is fixedly connected, and its other end is detachably connected with 200KV insulating bar top by screw thread by fastener such as screw thread.
In addition arc-shaped, and left side disconnecting link is bent outwardly at the beginning of left side disconnector contact-finger 7 and right side disconnector contact-finger
Linkage section among fingertip 7 and right side disconnector contact-finger is to be flexible coupling, this, which is flexible coupling, refers to by mostly connecting with copper or aluminum conductor
It connects.
Wherein the front of left side 7 top and bottom of disconnector contact-finger is connect by pushing up spring 1 with upper grip 2 and lower collet 6, and is somebody's turn to do
The rear portion of 7 top and bottom of left side disconnector contact-finger is connect by tension spring 5 with upper grip 2 and lower collet 6；Wherein right side disconnector contact-finger
The front of top and bottom is connect by pushing up spring 1 with upper grip 2 and lower collet 6, and the right side disconnector contact-finger top and bottom
Rear portion is connect by tension spring 5 with upper grip 2 and lower collet 6.
Embodiment 1:
The realization process of the system and method is discussed in detail with reference to the accompanying drawing.
1, device assembles.
Each section composition is assembled according to Fig. 1.
(1) fingertip part.
Fingertip part, as contact component, can effectively reduce contact resistance between device and wire clamp using disconnector contact-finger.Using
Double fingertips, can lifting device stability.Upper and lower fingertip rear portion with it is copper be flexible coupling be attached, the selection that is flexible coupling can be according to line
Folder size of current is selected；It is connected between fingertip and steel plate with spring, front is used tension spring 5, made fingertip using top spring 1, rear portion
Spacing is beloid, can effective lifting device grasp, while cushioning effect can be played, lifting device stability.
(2) screw portion.
Screw rod uses full wire screw rod, can be reliably connected fixation by nut and steel plate, while can also be according to device thickness tune
Distance between section fingertip；Device using U-shaped Interal fixation.
(3) clamping structure.
Clamping structure takes double collet, and clamping force is enough and contact length is not less than the 70% of plant width, with a thickness of
3-4mm, horizontal length >=10cm, Opening length are between 3-3.5cm, spacing 4.5-5.5cm, connecting screw 3 are designed as
4.5*45mm, pin use 10*10mm, and high stability is easier to install, and shock resistance is high.Fastening material selects resistance to compression
In the stainless steel plate of 150-200kg/cm2 range.Its electric conductivity is preferable, and performance is stablized, under high/low temperature performance without substantially changeing,
Oxidation resistance is strong.
(4) connection structure.
Connection structure takes contact connectio, mounts and separates and is easier to, and enough, connective stability is moderate for strength transmitting, system
Make the low screw size 20mm*8cm of expense, sleeve dimensions 24mm*7cm.The special 220kV operating stick of material selection is transmitted, using adding
Screwed connection is filled, will not be released after installation, stability is high, can meet 5.1 meters of high altitude operation.
(5) steel plate.
Steel plate hardness is higher can to play fixed function well, be on the one hand that can avoid on wire clamp by steel plate design at U-shaped
Bolt, while the weight of device can be reduced, reduce task difficulty；Integrated connection can make device with operating stick using long bolt
It is not easy to fall, lower part increases U-shaped steel circle, increases by an impetus, is easier operation.
2, device performance detects.
The present apparatus is carrying out following test to its performance using preceding:
(1) resistance value is tested between fingertip: test value < 50 μ Ω is met the requirements；
(2) pressure test: whole 440kV pressure test 1min over the ground is met the requirements without breakdown；
(3) clamping force is tested: weight of clamping is 2.5kg, and effectively clamping force is 45N between single-tap refers to, double fingertips are reachable
90N, can ensure that will not fall off after clamping installing under the such environmental effects such as strong wind；
(4) torque is calculated: by taking 220kV device height as an example, adult's man's arm strength is about 700N, can using operating stick
Working length is 0.8 meter, and weight of clamping is 2.5kg, and operating stick weight is 4kg, the clamping force 90N between connector, through torque
Formula measuring and calculating, the device can carry out operation in 5.1 meters of high-altitude, and interior 220kV device height of standing does not exceed 5 meters generally, 220kV
Live-working safety distance is 1.8 meters, is met in 220kV equipment high altitude operation requirement.
(5) live live testing: service personnel uses the dress to the fever of certain substation 35kV voltage transformer device clamp
It sets and has carried out in-situ processing.The first step confirms heat generating spot position using infrared accurate thermometric；Second step adjusts tap tail
Portion's nut makes the gap between tap or more fingertip meet live requirement；Third step, assembly and connection transfer device,
By on tap holding and heat generating spot (device clamp), and confirm that installation is reliable；4th step is continued by infrared accurate thermometric
Observation, and make a record, whether observation heat generating spot temperature reduces.
Claims (4)
1. a kind of critical fever electrical treatment device of wire clamp, it is characterised in that: including connecting screw (3), in the connecting screw (3)
Upper to be fixedly installed with upper grip (2) and lower collet (6) respectively, the upper grip (2) and lower collet (6) are U-shaped board and mutually
In parallel, left side disconnector contact-finger (7) are equipped among the left side of the upper grip (2) and lower collet (6), and in the upper grip (2) and
Right side disconnector contact-finger is equipped among the right side of lower collet (6), the top and bottom of the left side disconnector contact-finger (7) pass through elasticity respectively
Element is connect with upper grip (2) and lower collet (6), and the top and bottom of the right side disconnector contact-finger also pass through elastic element respectively
It is connect with upper grip (2) and lower collet (6)；It further include the installation screw rod (4) of L-type, installation screw rod (4) one end of the L-type is with before
The connecting screw (3) stated is fixedly connected, and its other end is detachably connected by fastener and insulating bar top.
2. the critical fever electrical treatment device of wire clamp as described in claim 1, it is characterised in that: wherein left side disconnector contact-finger
(7) and at the beginning of right side disconnector contact-finger be bent outwardly it is arc-shaped, and in left side disconnector contact-finger (7) and right side disconnector contact-finger
Between linkage section be to be flexible coupling.
3. the critical fever electrical treatment device of wire clamp as described in claim 1, it is characterised in that: being wherein flexible coupling refers to and pass through
Conducting wire connection.
4. the critical fever electrical treatment device of wire clamp as described in claim 1, it is characterised in that: wherein left side disconnector contact-finger
(7) front of top and bottom is connect by pushing up spring (1) with upper grip (2) and lower collet (6), and the left side disconnector contact-finger (7)
The rear portion of top and bottom is connect by tension spring (5) with upper grip (2) and lower collet (6)；Wherein right side disconnector contact-finger upper end and
The front of lower end is connect by pushing up spring (1) with upper grip (2) and lower collet (6), and the right side disconnector contact-finger top and bottom
Rear portion is connect by tension spring (5) with upper grip (2) and lower collet (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910520769.9A CN110247324B (en) | 2019-06-17 | 2019-06-17 | Wire clamp critical heating electrified treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910520769.9A CN110247324B (en) | 2019-06-17 | 2019-06-17 | Wire clamp critical heating electrified treatment device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110247324A true CN110247324A (en) | 2019-09-17 |
| CN110247324B CN110247324B (en) | 2024-05-10 |
Family
ID=67887412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910520769.9A Active CN110247324B (en) | 2019-06-17 | 2019-06-17 | Wire clamp critical heating electrified treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110247324B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202917668U (en) * | 2012-08-10 | 2013-05-01 | 国家电网公司 | Live-line processing apparatus for heating due to failed contact of equipment wiring board and current leading wire clamp |
| CN202997413U (en) * | 2012-11-21 | 2013-06-12 | 福建省电力有限公司 | Electrified treatment tool for wire clamp heating strip |
| CN203674595U (en) * | 2014-01-23 | 2014-06-25 | 国家电网公司 | Live-line emergency processing short-circuit parallel connecting device for eliminating heating of electric transmission and transformation equipment cable clamp |
| CN106921119A (en) * | 2015-12-24 | 2017-07-04 | 国家电网公司 | The emergent electrical treatment device of high voltage isolator edge of a knife heating |
| US20170259496A1 (en) * | 2016-03-14 | 2017-09-14 | Federal-Mogul Powertrain, Llc | Tool for fixing a textile sleeve about an elongate member to be protected and method of fixing a protective textile sleeve about an elongate member |
| CN109148174A (en) * | 2017-06-19 | 2019-01-04 | 陕西秦能电力科技股份有限公司 | A kind of electrical contact |
| CN209963608U (en) * | 2019-06-17 | 2020-01-17 | 国网宁夏电力有限公司检修公司 | Wire clamp emergency heating live processing device |
-
2019
- 2019-06-17 CN CN201910520769.9A patent/CN110247324B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202917668U (en) * | 2012-08-10 | 2013-05-01 | 国家电网公司 | Live-line processing apparatus for heating due to failed contact of equipment wiring board and current leading wire clamp |
| CN202997413U (en) * | 2012-11-21 | 2013-06-12 | 福建省电力有限公司 | Electrified treatment tool for wire clamp heating strip |
| CN203674595U (en) * | 2014-01-23 | 2014-06-25 | 国家电网公司 | Live-line emergency processing short-circuit parallel connecting device for eliminating heating of electric transmission and transformation equipment cable clamp |
| CN106921119A (en) * | 2015-12-24 | 2017-07-04 | 国家电网公司 | The emergent electrical treatment device of high voltage isolator edge of a knife heating |
| US20170259496A1 (en) * | 2016-03-14 | 2017-09-14 | Federal-Mogul Powertrain, Llc | Tool for fixing a textile sleeve about an elongate member to be protected and method of fixing a protective textile sleeve about an elongate member |
| CN109148174A (en) * | 2017-06-19 | 2019-01-04 | 陕西秦能电力科技股份有限公司 | A kind of electrical contact |
| CN209963608U (en) * | 2019-06-17 | 2020-01-17 | 国网宁夏电力有限公司检修公司 | Wire clamp emergency heating live processing device |
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| Publication number | Publication date |
|---|---|
| CN110247324B (en) | 2024-05-10 |
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