CN109884365A - A kind of transformer neutral point DC magnetic biasing current measuring instrument of hot line job - Google Patents
A kind of transformer neutral point DC magnetic biasing current measuring instrument of hot line job Download PDFInfo
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- CN109884365A CN109884365A CN201810496165.0A CN201810496165A CN109884365A CN 109884365 A CN109884365 A CN 109884365A CN 201810496165 A CN201810496165 A CN 201810496165A CN 109884365 A CN109884365 A CN 109884365A
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- pulling force
- force rope
- rotation
- joint arms
- fixed pulley
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Abstract
The invention discloses a kind of transformer neutral point DC magnetic biasing current measuring instruments of hot line job, belong to transformer fields of measurement.A kind of transformer neutral point DC magnetic biasing current measuring instrument of hot line job, when carrying out transformer measurement operation, there are two types of situation one kind in the operation of busbar bottom, at this time, folding switch need to be directly initiated without starting compressed gas bar only, stepper motor starts operation after starting folding switch, rotation axis is driven to drive rotation spinner handle to rotate in rotation case, make to rotate secondary bar forward movement, to drive movement BOB(beginning of block) mobile, increase distance between static block and moving mass, until reaching busbar width, hereafter folding switch is disconnected, stepper motor is set to stop working, strength power spring is started to work at this time, rotation spinner handle is driven to rotate backward in rotation case, move backward rotation secondary bar, to make current sensor block on busbar.
Description
Technical field
The present invention relates to transformer fields of measurement, straight more specifically to a kind of transformer neutral point of hot line job
Flow bias current measuring instrument.
Background technique
In recent years, super high voltage direct current electricity transmission is answered in China's long distance powedr transmission extensively with the characteristics of its economical and efficient
With as more and more DC power transmission lines put into operation, direct current transportation is in monopole ground return circuit and bipolar off-center operation
The problem of influencing under mode on AC transformer, increasingly highlights.
But instrument before is inconvenient to use and installation, electric current in measuring transformer neutral ground row that can not be easy
DC component.
Summary of the invention
1. technical problems to be solved
It, can not easy installation and measuring transformer neutral ground for existing in the prior art when transformer measures operation
In row the problem of the DC component of electric current, the purpose of the present invention is to provide a kind of transformer neutral point direct current of hot line job is inclined
Magnetoelectricity flow gauge, the DC component of the electric current in easy installation and measuring transformer neutral ground row may be implemented in it.
2. technical solution
To solve the above problems, the present invention adopts the following technical scheme that.
(1) the transformer neutral point DC magnetic biasing current measuring instrument of a kind of hot line job, including basis arm, the basis arm
Bottom end is connected with handle, is connected with battery on the left of the handle inner, the basis arm bottom is disposed with from top to bottom
Telescoping switch and folding switch, the basis arm top is socketed with two joint arms, is socketed with three joint arms above two joint arm, described
It is socketed with four joint arms above three joint arms, compressed gas bar, the compressed gas bar top are connected in the middle part of the basis arm inner bottom
It is socketed with mobile bar, the mobile bar top is connected with fixed pulley A, connects on the left of compressed gas bar in the middle part of the basis arm inner bottom
It is connected to pulling force rope A, the pulling force rope A connect around the fixed pulley A other end with three joint arms inner bottom, the three joint arms inner bottom
Fixed pulley B is connected on the right side of the pulling force rope A of end, four joint arm bottom end is connected with pulling force rope B, and the pulling force rope B bypasses fixed pulley B
It is connect on the right side of the other end and four joint arm bottom ends, is connected with fixed pulley C, four joint arm bottom on the right side of the three joint arms inner upper end
Pulling force rope C is connected with above right side, the pulling force rope C connect around the fixed pulley C other end and two joint arm inner bottoms right sides, institute
It states and is connected with fixed pulley D on the left of two joint arm bottom ends, be connected with pulling force rope D, the pulling force rope D on the left of the basis arm inner upper end
For the other end around connecting on the left of fixed pulley D and three joint arms bottom end, the left and right sides is connected with fixing axle above four joint arm, described
Fixed hub is connected to rotating bar, and static block is connected with above the rotating bar, is connected with step on the left of the static block lower inside
Into motor, it is connected with rotation axis on the right side of the stepper motor, is connected with rotation spinner handle, the rotation spinner handle on the right side of the rotation axis
Right hand external is socketed with rotation case, and inside is socketed with revolute pair bar on the right side of the rotation spinner handle, connects on the right side of the rotation secondary bar
It is connected to moving mass, the static block inner upper is connected with fixed link, and rotate gear, the rotation are socketed in the fixed link
Energetically power spring is socketed on gear, the strength power spring other end is connect with one end on the left of rotation spinner handle, on the right side of the static block
Top is all connected with current sensor on the left of top and moving mass, and the battery is electrically connected by telescoping switch with compressed gas bar
It connects, the battery is electrically connected by folding switch with stepper motor.
Preferably, the center the fixed pulley A is connected with transmission shaft one end, and the transmission shaft other end is connected with spiral
It takes turns, is connected with transmission line on the reel.
Preferably, the right handle is provided with supported chamber, and the handle, which is located above supported chamber, is connected with rotary shaft, institute
It states and is connected with support rod in rotary shaft.
Preferably, protecting box is provided on the left of the basis arm bottom end, the transmission line other end runs through protecting box.
Preferably, the pulling force rope A, pulling force rope B, pulling force rope C and pulling force rope D are made by ultrahigh molecular weight polyethylene.
Preferably, protective cover is provided with outside the current sensor.
3. beneficial effect
Compared with the prior art, the present invention has the advantages that
(1) when carrying out transformer measurement operation, there are two types of situation one kind in the operation of busbar bottom, at this point, without starting compressed gas
Bar need to only directly initiate folding switch, and stepper motor starts operation after starting folding switch, drive rotation axis to band
Turn is moved spinner handle and is rotated in rotation case, makes to rotate secondary bar forward movement, to drive movement BOB(beginning of block) mobile, makes static block
Distance increases between moving mass, until reaching busbar width, hereafter disconnects folding switch, stepper motor is made to stop work
Make, strength power spring is started to work at this time, and rotation spinner handle is driven to rotate backward in rotation case, and rotation secondary bar is moved backward,
To make current sensor block on busbar.
(2) it when encountering second situation, needs for current sensor to be installed at this time above busbar, needs to start at this time
Compressed gas bar only need to press telescoping switch, and compressed gas bar starting at this time drives mobile bar to rise, so that pulling force rope A be made to open
Begin to move, so that three joint arms be driven to begin to ramp up, drives pulling force rope B mobile at this time, increase four joint arms, three joint arms rise at this time
To drive fixed pulley to rise, fixed pulley drives pulling force rope mobile, since pulling force rope both ends are connected with four joint arm bottom ends, and draws
Power rope solderless wrapped connection rises on fixed pulley so that four joint arms are synchronous with three joint arms, while making two sections under the action of pulling force rope
Arm rises, while driving pulling force rope is mobile three joint arms is driven to rise, and effective laborsaving rising is realized, convenient for lifting, as pulling force rope A
It will drive fixed pulley A rotation when mobile, to drive reel rotation to start turning transmission line by transmission shaft, when end is made
When industry, since the mobile drive fixed pulley A of pulling force rope A is rotated backward, to drive reel to rotate backward, to make transmission line
It packs up.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is stretching structure schematic diagram of the present invention；
Fig. 3 is opening-closing structure schematic diagram of the present invention；
Fig. 4 is opening-closing structure perspective view of the explosion of the present invention；
Fig. 5 is fixed pulley A structural schematic diagram of the present invention；
Fig. 6 is handle arrangement schematic diagram of the present invention；
Fig. 7 is electrical block diagram of the present invention.
Figure label explanation:
1 compressed gas bar, 2 fixed pulley C, 3 four joint arms, 4 fixed pulley A, 5 fixed pulley D, 6 basis arms, 7 two joint arms, 8 three joint arms, 9 are moved
Lever, 10 transmission shafts, 11 transmission lines, 12 reels, 13 static blocks, 14 rotating bars, 15 telescoping switch, 16 support rods, 17 foldings
Switch, 18 handles, 19 batteries, 20 protecting box, 21 fixing axles, 22 stepper motors, 23 rotate gears, 24 strength power springs, 25 are consolidated
Fixed pole, 26 current sensors, 27 moving mass, 28 rotation secondary bars, 29 rotation cases, 30 rotation spinner handles, 31 rotation axis, 32 fixed pulleys
B, 33 pulling force rope A, 34 pulling force rope D, 35 pulling force rope C, 36 pulling force rope B, 37 rotary shafts, 38 supported chamber.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention；Technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description；Obviously；Described embodiments are only a part of the embodiments of the present invention；Instead of all the embodiments.It is based on
Embodiment in the present invention；It is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment；It shall fall within the protection scope of the present invention.
Embodiment 1:
Fig. 1-7, a kind of transformer neutral point DC magnetic biasing current measuring instrument of hot line job, including basis arm 6 are please referred to, basis
6 bottom end of arm is connected with handle 18, and 18 inside left of handle is connected with battery 19, and 6 bottom of basis arm is set gradually from top to bottom
There are telescoping switch 15 and folding switch 17, be socketed with two joint arms 7 above basis arm 6, is socketed with three joint arms 8 above two joint arms 7, three
It is socketed with four joint arms 3 above joint arm 8, is connected with compressed gas bar 1 in the middle part of 6 inner bottom of basis arm, is socketed with above compressed gas bar 1
Mobile bar 9,9 top of mobile bar are connected with fixed pulley A4, are connected with pulling force on the left of compressed gas bar 1 in the middle part of 6 inner bottom of basis arm
Restrict A33, and pulling force rope A33 connect around the fixed pulley A4 other end with 8 inner bottom of three joint arms, 8 inner bottom pulling force rope of three joint arms
Fixed pulley B32 is connected on the right side of A33, four joint arms, 3 bottom end is connected with pulling force rope B36, and pulling force rope B36 is another around fixed pulley B32
It is connect on the right side of end and four joint arms, 3 bottom end, fixed pulley C2, four joint arms, 3 bottom right top is connected on the right side of 8 inner upper end of three joint arms
It is connected with pulling force rope C35, pulling force rope C35 connect around the fixed pulley C2 other end and two joint arms, 7 inner bottom right side, two joint arms 7
It is connected with fixed pulley D5 on the left of bottom end, is connected with pulling force rope D34 on the left of 6 inner upper end of basis arm, the pulling force rope D34 other end bypasses
It is connect on the left of fixed pulley D5 and 8 bottom end of three joint arms, four joint arms, the 3 top left and right sides is connected with fixing axle 21, and fixing axle 21 is socketed
There is rotating bar 14, static block 13 is connected with above rotating bar 14, is connected with stepper motor 22 on the left of 13 lower inside of static block, is walked
It is connected with rotation axis 31 on the right side of into motor 22, rotation spinner handle 30 is connected on the right side of rotation axis 31, rotates 30 right hand external set of spinner handle
It is connected to rotation case 29,30 right side of rotation spinner handle is internal to be socketed with revolute pair bar 28, rotates and is connected with moving mass on the right side of secondary bar 28
27,13 inner upper of static block is connected with fixed link 25, and rotate gear 23 is socketed in fixed link 25, is socketed in rotate gear 23
Energetically power spring 24,24 other end of strength power spring are connect with rotation 30 left side one end of spinner handle, 13 right side top of static block and movement
27 left side top of block is all connected with current sensor 26, and battery 19 is electrically connected by telescoping switch 15 and compressed gas bar 1, is stored
Battery 19 is electrically connected by folding switch 17 and stepper motor 22.The center fixed pulley A4 is connected with 10 one end of transmission shaft,
10 other end of transmission shaft is connected with reel 12, and transmission line 11 is connected on reel 12.
Supported chamber 38 is provided on the right side of handle 18, handle 18, which is located above supported chamber 38, is connected with rotary shaft 37, rotary shaft
Support rod 16 is connected on 37.
Protecting box 20 is provided on the left of 6 bottom end of basis arm, 11 other end of transmission line runs through protecting box 20.
Pulling force rope A33, pulling force rope B36, pulling force rope C35 and pulling force rope D34 are made by ultrahigh molecular weight polyethylene.
Protective cover is provided with outside current sensor 26.
Working principle: when carrying out transformer measurement operation, there are two types of situation one kind in the operation of busbar bottom, at this point, being not necessarily to
Starting 1 need of compressed gas bar directly initiate folding switch 17, and stepper motor 22 starts operation after starting folding switch 17,
Rotation axis 31 is driven to drive rotation spinner handle 30 to rotate in rotation case 29, makes to rotate the forward movement of secondary bar 28, thus band
Dynamic moving mass 27 starts to move, and increases distance between static block 13 and moving mass 27, until reaching busbar width, hereafter
Folding switch 17 is disconnected, stepper motor 22 is made to stop working, strength power spring 24 is started to work at this time, and rotation spinner handle 30 is driven to turn
It is rotated backward in dynamic shell 29, moves backward rotation secondary bar 28, so that current sensor 26 be made to block on busbar.
When encountering second situation, needs for current sensor 26 to be installed at this time above busbar, need to start at this time
Compressed gas bar 1 only need to press telescoping switch 15, and the starting of compressed gas bar 1 at this time drives mobile bar 9 to rise, to make pulling force
Rope A33 starts to move, so that three joint arms 8 be driven to begin to ramp up, drives pulling force rope B36 mobile at this time, increase four joint arms 3, this
When three joint arms 8 rise that fixed pulley C2 is driven to rise, fixed pulley C2 drives pulling force rope C35 mobile, due to the both ends pulling force rope B36
It is connected with four joint arms, 3 bottom end, and pulling force rope B36 solderless wrapped connection is on fixed pulley B32, so that four joint arms 3 are synchronous with three joint arms 8
Rise, while increase two joint arms 7 under the action of pulling force rope C35, while driving pulling force rope D34 is mobile to drive in three joint arms 8
It rises, realizes effective laborsaving rising, convenient for lifting, will drive fixed pulley A4 rotation when pulling force rope A33 is mobile, to pass through biography
Moving axis 10 drives the rotation of reel 12 to start turning transmission line 11, when terminating operation, due to the mobile drive of pulling force rope A33
Fixed pulley A4 is rotated backward, to drive reel 12 to rotate backward, so that transmission line 11 be made to pack up.
When second situation occurs, since mounting distance is higher, so using bottom hand can be opened after the device
The device is integrally placed directly in ground to make bottom handle form stable triangle support frame by handle 18, rotation support rod 16
Or on external equipment, can start for transmission line 11 to be connected on external equipment later to acquire data, and in use due to
The pulling force rope made using ultrahigh molecular weight polyethylene reduces the generation of accident, rises using protective cover to current sensor 26
Good protective effect is arrived, and protecting box 20 can be very good the transmission of protection data.
It is described above；It is merely preferred embodiments of the present invention；But scope of protection of the present invention is not limited thereto；
Anyone skilled in the art is in the technical scope disclosed by the present invention；According to the technique and scheme of the present invention and its
It improves design and is subject to equivalent substitution or change；It should be covered by the scope of protection of the present invention.
Claims (6)
1. a kind of transformer neutral point DC magnetic biasing current measuring instrument of hot line job, including basis arm (6), it is characterised in that:
Basis arm (6) bottom end is connected with handle (18), and handle (18) inside left is connected with battery (19), the basis
Arm (6) bottom is disposed with telescoping switch (15) and folding switch (17) from top to bottom, is socketed with above the basis arm (6)
Two joint arms (7), two joint arm (7) top are socketed with three joint arms (8), are socketed with four joint arms (3) above the three joint arms (8),
It is connected with compressed gas bar (1) in the middle part of basis arm (6) inner bottom, is socketed with mobile bar above the compressed gas bar (1)
(9), mobile bar (9) top is connected with fixed pulley A(4), basis arm (6) the inner bottom middle part compressed gas bar (1) is left
Side is connected with pulling force rope A(33), the pulling force rope A(33) connect around the fixed pulley A(4) other end and three joint arms (8) inner bottom
Connect, three joint arms (8) the inner bottom pulling force rope A(33) right side is connected with fixed pulley B(32), four joint arms (3) bottom end connects
It is connected to pulling force rope B(36), the pulling force rope B(36) it is connect around the fixed pulley B(32) other end and four joint arms (3) bottom end right side,
Fixed pulley C(2 is connected on the right side of three joint arms (8) inner upper end), four joint arm (3) the bottom right top is connected with pulling force
Restrict C(35), the pulling force rope C(35) it is connect around the fixed pulley C(2) other end and two joint arms (7) inner bottom right side, described two
Fixed pulley D(5 is connected on the left of joint arm (7) bottom end), basis arm (6) the inner upper end left side is connected with pulling force rope D(34), institute
State pulling force rope D(34) for the other end around connecting on the left of fixed pulley D(5) and three joint arms (8) bottom end, four joint arm (3) top is left
Right two sides are connected with fixing axle (21), and the fixing axle (21) is socketed with rotating bar (14), connection above the rotating bar (14)
Have static block (13), be connected with stepper motor (22) on the left of static block (13) lower inside, the stepper motor (22) is right
Side is connected with rotation axis (31), and rotation spinner handle (30), rotation spinner handle (30) right side are connected on the right side of the rotation axis (31)
Outside is socketed with rotation case (29), internal on the right side of the rotation spinner handle (30) to be socketed with revolute pair bar (28), the revolute pair
It is connected with moving mass (27) on the right side of bar (28), static block (13) inner upper is connected with fixed link (25), the fixed link
(25) it is socketed on rotate gear (23), energetically power spring (24), the strength power spring is socketed on the rotate gear (23)
(24) other end is connect with one end on the left of rotation spinner handle (30), on the right side of the static block (13) on top and moving mass (27) left side
Side is all connected with current sensor (26), and the battery (19) is electrically connected by telescoping switch (15) and compressed gas bar (1),
The battery (19) is electrically connected by folding switch (17) and stepper motor (22).
2. a kind of transformer neutral point DC magnetic biasing current measuring instrument of hot line job according to claim 1, feature
It is: the fixed pulley A(4) center is connected with transmission shaft (10) one end, and transmission shaft (10) other end is connected with volume
Line wheel (12) is connected with transmission line (11) on the reel (12).
3. a kind of transformer neutral point DC magnetic biasing current measuring instrument of hot line job according to claim 1, feature
It is: is provided with supported chamber (38) on the right side of the handle (18), the handle (18), which is located above supported chamber (38), is connected with rotation
Shaft (37) is connected with support rod (16) on the rotary shaft (37).
4. a kind of transformer neutral point DC magnetic biasing current measuring instrument of hot line job according to claim 1, feature
It is: is provided with protecting box (20) on the left of basis arm (6) bottom end, transmission line (11) other end runs through protecting box
(20).
5. a kind of transformer neutral point DC magnetic biasing current measuring instrument of hot line job according to claim 1, feature
Be: the pulling force rope A(33), pulling force rope B(36), pulling force rope C(35) and pulling force rope D(34) by ultrahigh molecular weight polyethylene
It makes.
6. a kind of transformer neutral point DC magnetic biasing current measuring instrument of hot line job according to claim 1, feature
It is: is provided with protective cover outside the current sensor (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810496165.0A CN109884365A (en) | 2018-05-22 | 2018-05-22 | A kind of transformer neutral point DC magnetic biasing current measuring instrument of hot line job |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810496165.0A CN109884365A (en) | 2018-05-22 | 2018-05-22 | A kind of transformer neutral point DC magnetic biasing current measuring instrument of hot line job |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109884365A true CN109884365A (en) | 2019-06-14 |
Family
ID=66924768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810496165.0A Pending CN109884365A (en) | 2018-05-22 | 2018-05-22 | A kind of transformer neutral point DC magnetic biasing current measuring instrument of hot line job |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109884365A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204588619U (en) * | 2015-04-29 | 2015-08-26 | 张爱峰 | Novel fork mounting machine extendible arm |
| CN106405198A (en) * | 2016-11-30 | 2017-02-15 | 国网江苏省电力公司连云港供电公司 | Telescopic clip-on current detection device |
| US20170146575A1 (en) * | 2015-11-23 | 2017-05-25 | National Instruments Corporation | Digitally Compensating for the Impact of Input Bias Current on Current Measurements |
| CN106771498A (en) * | 2017-01-16 | 2017-05-31 | 吉林大学 | Can wireless, passive, noncontact, the device and method of multi-thread measurement DC current |
-
2018
- 2018-05-22 CN CN201810496165.0A patent/CN109884365A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204588619U (en) * | 2015-04-29 | 2015-08-26 | 张爱峰 | Novel fork mounting machine extendible arm |
| US20170146575A1 (en) * | 2015-11-23 | 2017-05-25 | National Instruments Corporation | Digitally Compensating for the Impact of Input Bias Current on Current Measurements |
| CN106405198A (en) * | 2016-11-30 | 2017-02-15 | 国网江苏省电力公司连云港供电公司 | Telescopic clip-on current detection device |
| CN106771498A (en) * | 2017-01-16 | 2017-05-31 | 吉林大学 | Can wireless, passive, noncontact, the device and method of multi-thread measurement DC current |
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Application publication date: 20190614 |