CN108318174A - A kind of telescopic disconnecting switch clamping force detector of single armed - Google Patents
A kind of telescopic disconnecting switch clamping force detector of single armed Download PDFInfo
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- CN108318174A CN108318174A CN201810191861.0A CN201810191861A CN108318174A CN 108318174 A CN108318174 A CN 108318174A CN 201810191861 A CN201810191861 A CN 201810191861A CN 108318174 A CN108318174 A CN 108318174A
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- switch
- disconnecting switch
- clamping force
- close
- single armed
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- 238000010276 construction Methods 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims description 18
- 230000007246 mechanism Effects 0.000 claims description 17
- 238000001514 detection method Methods 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 11
- 230000009467 reduction Effects 0.000 claims description 10
- 230000009471 action Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 11
- 238000005259 measurement Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 7
- 230000033001 locomotion Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000008439 repair process Effects 0.000 abstract description 3
- 239000000523 sample Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/22—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a kind of telescopic disconnecting switch clamping force detectors of single armed, including installs fixture, electric pushrod device, limiting device, clamp tension gauge and electric control gear, the electric pushrod device is connect with installs fixture, and the electric control gear is electrically connected with electric pushrod device, limiting device, clamping tension gauge respectively.Guide rod skimulated motion displacement is consistent with moving displacement when practical close a floodgate inside contact tube in the telescopic disconnecting switch of single armed of the present invention, simultaneously clamping on the riding position of force measuring instrument pressure sensing probe can be consistent with practical combined floodgate clamp point, so effectively ensure that the clamping force measurement data obtained using this mode is consistent with actual operating data；It may be implemented to complete to measure work in the case where the upper and lower contact tube of the telescopic disconnecting switch of single armed is completely in open position, greatly ensured the safety of the construction personnel in repair and maintenance measurement process.
Description
Technical field
The present invention relates to high voltage isolator detection device technology fields, and more specifically, more particularly to a kind of single armed is stretched
Contracting formula disconnecting switch clamping force detector.
Background technology
Single armed Telescopic high-pressure disconnecting switch conductive contact finger clamps there are mainly two types of force measuring devices at present, respectively hand-held
Formula and suspension type.Two kinds of measuring devices belong to simple measuring instrument, and operating process is conductive contact finger clamp measuring instrument pressure
Then sensor reads in measuring instrument and clamps force data, disconnecting switch needs additional driving force, conduction to touch in such cases
Finger could complete clamp action.In practical substation the single armed Telescopic high-pressure disconnecting switch of installation and operation, if examining
It needs to measure conductive contact finger clamping force when repairing, then the lower contact tube of disconnecting switch operation operating mechanism driving is needed, by lower contact tube
To drive upper contact tube to drive fingertip divide-shut brake.Disconnecting switch is completely in "on" position when measuring clamping force, unexpected power transmission or
Line influence potential must constitute a threat to survey crew safely.It is influenced by static contact isolation switch, simple hand-held and outstanding
The inconvenient installation of hanging measuring instrument measures.
Invention content
At present contact tube must be powered on for detection in the presence of the present invention mainly solution prior art, to measuring people
Member's safety constitutes a threat to technical problem, to provide it is a kind of can be carried out during the disconnecting switch of installation and operation is overhauled it is conductive
Fingertip clamping force measures, without carrying out switching whole closing operation by operating mechanism when measurement, i.e., should not derivation electrical contact finger and
The telescopic disconnecting switch clamping force detector of single armed of static contact clamp contact.
The above-mentioned technical problem of the present invention is mainly to be addressed by following technical proposals：
A kind of telescopic disconnecting switch clamping force detector of single armed of the present invention, including with lower component：
Installs fixture, for detection device to be fixedly connected with disconnecting switch；
Electric pushrod device, for driving disconnecting switch to close a floodgate or open a sluice gate；
Limiting device, the stroke for limiting electric pushrod device, to control the combined floodgate angle of disconnecting switch；
Tension gauge is clamped, then the clamping force for bearing fingertip clamp in disconnecting switch detects the size of the clamping force；
Electric control gear receives the electric pushrod setting position signal of limiting device detection for controlling electric pushrod device action,
Receive the clamping force signal for clamping tension gauge detection；
The electric pushrod device is connect with installs fixture, the electric control gear respectively with electric pushrod device, limiting device, folder
Clamp force detector is electrically connected.
Further, the electric pushrod device includes stepper motor, motor driver, planetary reduction gear, screw lead screw
Transmission mechanism and piston/cylinder, the stepper motor is connect by planetary reduction gear with screw lead screw transmission mechanism, and screw silk
Bar transmission mechanism is arranged in piston/cylinder, and motor driver, and screw spindle gear are equipped on the stepper motor
External part be fixedly connected with push plate, lead screw nut transmission driving push plate translation, one end of the push plate be isolated
The position of contact tube rear portion idler wheel is corresponding in switch, and the activity direction of the push plate is parallel with the activity direction of contact tube.
Further, the stepper motor, planetary reduction gear, screw lead screw transmission mechanism are coaxially set gradually.
Further, the push plate is T-type push plate, and the external part of the screw spindle gear is connected in push plate
The lower part in portion, the push plate is corresponding with contact tube rear portion scroll wheel positions, and the piston/cylinder side opposite with push plate is also pacified
Equipped with guider mounting plate, the push plate both sides are connect by guider with guider mounting plate.
Further, the limiting device includes advancing limit close to switch, retreat the close switch of limit, limited block and row
Journey sliding rail, the limited block both ends are connect with piston/cylinder top, and offer sliding rail hole, the stroke sliding rail in the middle part of limited block
For L-type, has the vertical part and the horizontal part of interconnection on stroke sliding rail, the vertical portion is mounted in push plate, the horizontal part
It is separately installed with advance limit across the sliding rail hole, and above the horizontal part of limited block both sides and is connect close to switching and retreating limit
Closely switch, the advance limit are electrically connected with electric control gear close to switch, retrogressing limit close to switch.
Further, the electric control gear include power interface, electric-controlled switch, power module, controller, control panel,
Intermediate relay, the power interface are electrically connected with the controller after passing sequentially through power switch, power module, and the controller is also
It being electrically connected with control panel, the power module is also electrically connected with limit of advancing close to switch, the close switch of retrogressing limit respectively,
The controller with limit of advancing close to switch, the close switch of retrogressing limit also by being electrically connected respectively after intermediate relay, institute
Controller is stated to be electrically connected with motor driver.
Further, the installs fixture includes that upper semi-circle embraces folder and lower half circle armful folder, and the upper semi-circle is embraced also one on folder
Body formula is connected with push rod mounting base, and the upper semi-circle embraces folder and lower half circle is embraced folder and removably connected by bolt.
Further, the installs fixture is cast aluminum construction.
Compared with the prior art, the advantages of the present invention are as follows：
One, data validity
In fingertip clamping force measurement process, guide rod skimulated motion displacement and moving displacement guarantor when practical close a floodgate inside upper contact tube
Hold consistent, simultaneously clamping on the riding position of force measuring instrument pressure sensing probe can be consistent with practical combined floodgate clamp point, such as
This effectively ensures that the clamping force measurement data obtained using this mode is consistent with actual operating data.
Two, personnel safety
Traditional measurement method needs to measure after switch combined floodgate completely, and flexible for the single armed of installation and operation
No matter formula disconnecting switch is all difficult to realize from the installation for clamping force measuring device or personnel safety consideration.And the device can be with
It realizes and completes to measure work in the case where the upper and lower contact tube of the telescopic disconnecting switch of single armed is completely in open position, greatly ensure
The safety of construction personnel in repair and maintenance measurement process.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram of the telescopic disconnecting switch clamping force detector of single armed of the present invention；
Fig. 2 is the front view of the telescopic disconnecting switch clamping force detector of single armed of the present invention；
Fig. 3 is the vertical view of electric pushrod device in the present invention；
Fig. 4 is the front view of limiting device in the present invention；
Fig. 5 is the vertical view of limiting device in the present invention；
Fig. 6 is the electrical schematic diagram of electric control gear in the present invention；
Fig. 7 is the outline structural diagram of electric control gear in the present invention；
Fig. 8 is the structural schematic diagram of installs fixture in the present invention.
Specific implementation mode
The preferred embodiment of the present invention is described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Refering to fig. 1, shown in Fig. 2, a kind of telescopic disconnecting switch clamping force detector of single armed provided by the invention, including
With lower component：
Installs fixture 1, for detection device to be fixedly connected with disconnecting switch；It can easily will be of the invention by installs fixture
Detection device be fixed in disconnecting switch.
Electric pushrod device 2, for driving disconnecting switch to close a floodgate or open a sluice gate；When disconnecting switch is closed a floodgate, stylus clamp is driven
Clamping is held together.
Limiting device 3, the stroke for limiting electric pushrod device, to control the combined floodgate angle of disconnecting switch；Also it uses
In the folding angle for accurately controlling fingertip clamp.
Controller model DKC-S100.
Tension gauge 4 is clamped, then the clamping force for bearing fingertip clamp in disconnecting switch detects the clamping force
Size；
Electric control gear 5 receives the electric pushrod setting position letter of limiting device detection for controlling electric pushrod device action
Number, receive the clamping force signal for clamping tension gauge detection；Electric control part is generally by portable automatically controlled box body and internal control
Element is constituted.
Electric pushrod device 2 is connect with installs fixture 1, electric control gear 5 respectively with electric pushrod device 2, limiting device 3,
Tension gauge 4 is clamped to be electrically connected.
To detect the clamping force of single arm type expansion isolating switches conductive fingertip, then it is needed to complete the action of fingertip clamp.
The type disconnecting switch is mainly to move forward and backward realization by upper contact tube inside center guide rod.Centre pilot end is equipped with
Idler wheel may be implemented guide rod by external strength pushing rolling wheels and move forward and backward.Electric pushrod device 2 is driven by it in the application
Part pushes rear portion idler wheel to realize that fingertip clamp and release action, limiting device 3 can limit the row of electric pushrod device 2
Journey,.Stylus clamp, which is held, clamps tension gauge 4, then clamps the clamping force data that tension gauge 4 reads fingertip clamp, then
Pass to the display of electric control gear 5.
As shown in fig.3, electric pushrod device 2 includes stepper motor 21, motor driver 22, planetary reduction gear 23, silk
Female lead screw transmission mechanism and piston/cylinder 24, stepper motor 21 are connect by planetary reduction gear 23 with screw lead screw transmission mechanism,
And screw lead screw transmission mechanism is arranged in piston/cylinder 24, and motor driver 22, and screw silk are equipped on stepper motor 21
The external part 27 of bar transmission device is fixedly connected with push plate 25, and lead screw nut transmission drives push plate 25 to translate, push plate 25
One end is corresponding with the position of contact tube rear portion idler wheel in disconnecting switch, the activity direction of push plate 25 and the activity direction of contact tube
It is parallel.
In the requirement to displacement accuracy, the application uses driving and the control program of stepper motor 21.The present embodiment
Middle stepper motor 21 illustratively uses 57 types, 1.2 ° of stepping corner, rated current 3A, direct output torque 1.6N m.Planet
It is 1 to take turns deceleration mechanism reduction ratio:4, the horizontal range of piston push rod is 40mm, and stepper motor 21 passes through planetary gear primary speed-down
Mechanism and lead screw screw transmission mechanism final output maximum 3000N thrusts, can meet the detection of existing single arm type disconnecting switch
It is required that.By setting the series of parameters such as displacement, velocity of displacement, acceleration, unit mm pulsed quantities, Ke Yixiang in the controller
Specific pulse is sent out in driver, driver Driving Stepping Motor realizes that electric pushrod is run according to specific mode.Electric pushrod
Movement can drive the movement of contact tube rear portion idler wheel simultaneously, be finally completed clamp and the release action of fingertip, and then reach tactile
Refer to the measurement purpose of clamping force.
Preferably, stepper motor 21, planetary reduction gear 23, screw lead screw transmission mechanism are coaxially set gradually, and can be made
It is made continuous cylindrical structure, it is compact-sized.
In the present embodiment, push plate 25 is T-type push plate, and the external part 27 of screw spindle gear is connected to push plate 25
The lower part at middle part, push plate 25 is corresponding with contact tube rear portion scroll wheel positions, and the side opposite with push plate 25 of piston/cylinder 24 is also pacified
Equipped with guider mounting plate 26,25 both sides of push plate are connect by guider 28 with guider mounting plate 26.Fixed peace
T shapes push plate 25 is ensured before dress within the scope of 5-10mm before retrogressing range, while T shapes push plate 25 and contact tube rear portion idler wheel
Just line contacts, that is, realizes that moving forward and backward for push rod 25 is synchronous with conduit fingertip clamp and release direction.
Shown in Fig. 4, Fig. 5, limiting device 3 includes advancing limit close to switch 31, retrogressing limit close to switch 32, limit
Position block 33 and stroke sliding rail 34,33 both ends of limited block are connect with 24 top of piston/cylinder, and 33 middle part of limited block offers sliding rail
Hole（It is not shown in figure）, stroke sliding rail 34 is L-type, has vertical portion 341 and the horizontal part 342 of interconnection on stroke sliding rail 34,
Vertical portion 341 is mounted in push plate 25, and horizontal part 342 passes through sliding rail hole, and 342 top of horizontal part of 33 both sides of limited block is respectively
Limit of advancing is installed to limit close to switch 32 close to switch 31 and retrogressing, the close switch 31 of limit of advancing, retrogressing limit are close
Switch 32 is electrically connected with electric control gear 5.In the present embodiment, NPN type metal inductive proximity switch, effective feeling are used close to switch
It should be apart from for 2mm.Such as due to artificial origin cause with actual direction inverse operation, can trigger metal sense after push rod stroke crosses position
Switch should be approached, which can the action of stopping immediately.
Shown in Fig. 6, Fig. 7, electric control gear 5 includes power interface 51, electric-controlled switch 52, power module 53, controller
54, control panel 55, intermediate relay 56, power interface 51 pass sequentially through after power switch 52, power module 53 with controller
54 electrical connections, controller 54 also be electrically connected with control panel 55, power module 53 also approached respectively with limit of advancing switch 31, after
Limit is moved back to be electrically connected close to switch 32, controller 54 also by after intermediate relay 56 respectively with the close switch 31 of limit that advances,
It retreats limit to be electrically connected close to switch 32, controller 54 is electrically connected with motor driver 22.By setting position in controller 54
The series of parameters such as shifting amount, velocity of displacement, acceleration, unit mm pulsed quantities, can send out specific pulse into driver, driving
Device Driving Stepping Motor realizes that electric pushrod is run according to specific mode.
Folder 11 and lower half circle armful folder 12 are embraced as shown in fig.8, installs fixture 1 includes upper semi-circle, upper semi-circle is embraced on folder 11 also
Integral type is connected with push rod mounting base 13, and upper semi-circle embraces folder 11 and lower half circle is embraced folder 12 and removably connected by bolt.Installation
Fixture is cast aluminum construction.Embracing folder internal diameter can be customized according to the outer diameter of practical contact tube, such as 80mm, 100mm.
The advantage of the invention is that;
One, data validity
In fingertip clamping force measurement process, guide rod skimulated motion displacement and moving displacement holding when practical close a floodgate inside contact tube
Unanimously, the riding position for simultaneously clamping on force measuring instrument pressure sensing probe is consistent with practical combined floodgate clamp point, so strong
Ensure that the clamping force measurement data obtained using this mode is consistent with actual operating data.
Two, Installation Flexibility
Clamping force detector drive part is connect with upper contact tube using clipping type structure, and connection type is simple and reliable, embraces folder
Internal diameter can be according to the outer diameter flexible customization of different contact tubes.
Three, operation ease
Control cabinet is processed using 304 stainless steels, Portable design, and shape is exquisite beautiful.It is empty that control cabinet panel is equipped with power supply
It opens, controller LCD liquid crystal display screen and each control button.Conductive push rod single fortune is finished by driver and controller setting
After the parameters such as dynamic displacement, movement velocity and stepper motor work rated current, remaining operation can by three operation buttons
It completes, entire measurement process only needs two people cooperating up and down.
Four, personnel safety
Traditional measurement method needs to measure after switch combined floodgate completely, and flexible for the single armed of installation and operation
No matter formula disconnecting switch is all difficult to realize from the installation for clamping force measuring device or personnel safety consideration.And the device can be with
It realizes and completes to measure work in the case where the upper and lower contact tube of the telescopic disconnecting switch of single armed is completely in open position, greatly ensure
The safety of construction personnel in repair and maintenance measurement process.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
The change or replacement expected without creative work, should be covered by the protection scope of the present invention.Therefore, of the invention
Protection domain should be determined by the scope of protection defined in the claims.
Claims (8)
1. a kind of telescopic disconnecting switch clamping force detector of single armed, which is characterized in that including with lower component：
Installs fixture, for detection device to be fixedly connected with disconnecting switch；
Electric pushrod device, for driving disconnecting switch to close a floodgate or open a sluice gate；
Limiting device, the stroke for limiting electric pushrod device, to control the combined floodgate angle of disconnecting switch；
Tension gauge is clamped, then the clamping force for bearing fingertip clamp in disconnecting switch detects the size of the clamping force；
Electric control gear receives the electric pushrod setting position signal of limiting device detection for controlling electric pushrod device action,
Receive the clamping force signal for clamping tension gauge detection；
The electric pushrod device is connect with installs fixture, the electric control gear respectively with electric pushrod device, limiting device, folder
Clamp force detector is electrically connected.
2. the telescopic disconnecting switch clamping force detector of single armed according to claim 1, it is characterised in that：It is described electronic
Push rod device includes stepper motor, motor driver, planetary reduction gear, screw lead screw transmission mechanism and piston/cylinder, the step
Stepper motor is connect by planetary reduction gear with screw lead screw transmission mechanism, and screw lead screw transmission mechanism is arranged in piston/cylinder
In, motor driver is installed, and the external part of screw spindle gear is fixedly connected with push plate on the stepper motor, institute
It states the driving push plate of lead screw nut transmission to translate, in one end of the push plate and disconnecting switch the position of contact tube rear portion idler wheel
Corresponding, the activity direction of the push plate is parallel with the activity direction of contact tube.
3. the telescopic disconnecting switch clamping force detector of single armed according to claim 2, it is characterised in that：The stepping
Motor, planetary reduction gear, screw lead screw transmission mechanism are coaxially set gradually.
4. the telescopic disconnecting switch clamping force detector of single armed according to claim 2, it is characterised in that：The push plate
External part for T-type push plate, the screw spindle gear is connected to the middle part of push plate, the lower part of the push plate and contact tube
Rear portion scroll wheel positions are corresponding, and the piston/cylinder side opposite with push plate is also equipped with guider mounting plate, described to push away
Plate both sides are connect by guider with guider mounting plate.
5. the telescopic disconnecting switch clamping force detector of single armed according to claim 2, it is characterised in that：The limit
Device includes advancing limit close to switch, retreat the close switch of limit, limited block and stroke sliding rail, the limited block both ends and work
Plug cylinder body top connects, and sliding rail hole is offered in the middle part of limited block, and the stroke sliding rail is L-type, has on stroke sliding rail and mutually interconnects
The vertical part and the horizontal part connect, the vertical portion are mounted in push plate, and the horizontal part passes through the sliding rail hole, and limited block two
The horizontal part top of side is separately installed with advance limit close to switch and retrogressing limit close to switch, and the advance limit is close to open
It closes, retrogressing limit is electrically connected with electric control gear close to switch.
6. the telescopic disconnecting switch clamping force detector of single armed according to claim 5, it is characterised in that：It is described automatically controlled
Device includes power interface, electric-controlled switch, power module, controller, control panel, intermediate relay, the power interface according to
Secondary by being electrically connected with the controller after power switch, power module, the controller is also electrically connected with control panel, the power supply
Module is also electrically connected with limit of advancing close to switch, the close switch of retrogressing limit respectively, and the controller also passes through intermediate relay
It is electrically connected respectively close to switch, the close switch of retrogressing limit with limit of advancing after device, the controller is electrically connected with motor driver
It connects.
7. the telescopic disconnecting switch clamping force detector of single armed according to claim 1, it is characterised in that：The installation
Fixture includes that upper semi-circle embraces folder and lower half circle armful folder, and the upper semi-circle embraces also integral type on folder and is connected with push rod mounting base, described
Upper semi-circle embraces folder and lower half circle is embraced folder and removably connected by bolt.
8. the telescopic disconnecting switch clamping force detector of single armed according to claim 6, it is characterised in that：The installation
Fixture is cast aluminum construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810191861.0A CN108318174A (en) | 2018-03-08 | 2018-03-08 | A kind of telescopic disconnecting switch clamping force detector of single armed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810191861.0A CN108318174A (en) | 2018-03-08 | 2018-03-08 | A kind of telescopic disconnecting switch clamping force detector of single armed |
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| CN108318174A true CN108318174A (en) | 2018-07-24 |
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| CN201810191861.0A Pending CN108318174A (en) | 2018-03-08 | 2018-03-08 | A kind of telescopic disconnecting switch clamping force detector of single armed |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112345143A (en) * | 2020-11-13 | 2021-02-09 | 江苏省如高高压电器有限公司 | Clamping force testing tool for isolating switch and testing method thereof |
| CN113701932A (en) * | 2021-09-03 | 2021-11-26 | 山东泰开隔离开关有限公司 | On-line remote measuring device and method for clamp force and temperature of contact finger contact of isolating switch |
| CN114188829A (en) * | 2022-02-17 | 2022-03-15 | 晟望电气有限公司 | Combined medium voltage distribution system |
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| CN112345143A (en) * | 2020-11-13 | 2021-02-09 | 江苏省如高高压电器有限公司 | Clamping force testing tool for isolating switch and testing method thereof |
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| CN114188829A (en) * | 2022-02-17 | 2022-03-15 | 晟望电气有限公司 | Combined medium voltage distribution system |
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