CN114267970A - Grounding device of oil-immersed transformer - Google Patents
Grounding device of oil-immersed transformer Download PDFInfo
- Publication number
- CN114267970A CN114267970A CN202210000536.8A CN202210000536A CN114267970A CN 114267970 A CN114267970 A CN 114267970A CN 202210000536 A CN202210000536 A CN 202210000536A CN 114267970 A CN114267970 A CN 114267970A
- Authority
- CN
- China
- Prior art keywords
- lead
- oil
- grounding
- fixedly connected
- bottom plate
- 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
- 239000007788 liquid Substances 0.000 claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 239000004020 conductor Substances 0.000 claims abstract description 16
- 239000012266 salt solution Substances 0.000 claims abstract description 7
- 230000000712 assembly Effects 0.000 claims abstract description 6
- 238000000429 assembly Methods 0.000 claims abstract description 6
- 230000008878 coupling Effects 0.000 claims description 17
- 238000010168 coupling process Methods 0.000 claims description 17
- 238000005859 coupling reaction Methods 0.000 claims description 17
- 230000001681 protective effect Effects 0.000 claims description 16
- 210000005239 tubule Anatomy 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 9
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 9
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 4
- 235000017491 Bambusa tulda Nutrition 0.000 claims 4
- 241001330002 Bambuseae Species 0.000 claims 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 4
- 239000011425 bamboo Substances 0.000 claims 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract description 19
- 239000011780 sodium chloride Substances 0.000 abstract description 19
- 238000000926 separation method Methods 0.000 abstract description 12
- 239000002689 soil Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 7
- 230000009471 action Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 230000033228 biological regulation Effects 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 5
- 238000005491 wire drawing Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000012267 brine Substances 0.000 description 2
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Abstract
The invention discloses a grounding device of an oil-immersed transformer, which comprises the following components: the oil-immersed transformer comprises a bottom plate and an oil-immersed transformer arranged on the bottom plate, wherein a grounding lead is arranged at the bottom of the oil-immersed transformer in an extending mode, a lead box is arranged outside the grounding lead, a lead adjusting mechanism used for the grounding lead is further arranged inside the lead box, and a plurality of groups of grounding conductor assemblies are arranged on the lower end face of the bottom plate. According to the invention, the first driving device is opened and is utilized to act on the plurality of piston rods simultaneously, so that each piston rod drives the piston head matched with the piston rod to perform piston motion in the liquid separation piston cylinder, and the saline in the saline storage box can be shunted to the liquid separation piston cylinder through the plurality of drainage thin tubes, so that the saline replenishment action at one time is realized; and in time with salt solution in the liquid separating piston cylinder evenly pour into the soil of ground connection punishment department through a plurality of weeping branch pipes, increase the electric conductive property of soil, guarantee earthing device's normal electrically conductive effect, prolonged the ground connection life-span of distribution network.
Description
Technical Field
The invention relates to the technical field of oil-immersed transformers, in particular to a grounding device of an oil-immersed transformer.
Background
The oil immersed transformer is a novel high-performance transformer with more reasonable structure and better performance, and the three-dimensional wound iron core has no air gap in a magnetic circuit because three core columns are arranged in a three-dimensional manner in an equilateral triangle, so that the winding is tighter, the three magnetic circuits are consistent in length and shortest, and the cross sectional area of the core columns of the iron core is closer to a circle, so that the performance is further improved, the loss is reduced, the noise is reduced, the three-phase balance is realized, the third harmonic component is reduced, and the product is more suitable for urban and rural power, the transformation of power grids of industrial and mining enterprises, and is more suitable for combined transformers and transformers for pre-installed substations.
Because the oil-immersed transformer converts high voltage into low voltage, it is very important to prevent electric leakage, and now, besides protecting the outside of the oil-immersed transformer, the grounding device is installed to conduct grounding, so that electricity can be conducted to the ground to avoid hurting people, but the grounding device of the existing oil-immersed transformer has the following problems in actual use; 1. after the existing oil-immersed transformer grounding resistor is used for a long time, the conductivity of soil is gradually weakened, the grounding resistor is increased again, the use effect is poor, and the safety performance is low; 2. the existing oil-immersed transformer has less reserved redundancy of the grounding lead, and the grounding lead is easily broken if unexpected factors occur, so that grounding fails and safety hazards are caused.
Disclosure of Invention
The invention aims to provide a grounding device capable of enhancing the ground conductivity of an oil-immersed transformer, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an earthing device of an oil-immersed transformer comprises a bottom plate and the oil-immersed transformer arranged on the bottom plate, wherein an earthing lead is arranged at the bottom of the oil-immersed transformer in an extending mode, a lead box is arranged outside the earthing lead, the lead box and the oil-immersed transformer are fixedly connected to the bottom plate, a lead adjusting mechanism for the earthing lead is further arranged inside the lead box, a plurality of groups of earthing conductor assemblies are arranged on the lower end face of the bottom plate, each group of earthing conductor assemblies mainly comprises a coupling conducting ring, a plurality of shunt rods are fixedly connected to the periphery of the coupling conducting ring, each shunt rod is fixedly connected to one group of vertical conducting rods, a cone is fixedly connected to the bottom of each group of vertical conducting rods, a protective outer cylinder is sleeved outside each vertical conducting rod, the protective outer cylinder is fixedly arranged at the bottom of the bottom plate, and an auxiliary conducting mechanism is further arranged on the protective outer cylinder, supplementary electrically conductive mechanism includes that a plurality of salt solutions store the box, the salt solution is stored the box and is set up at the up end of bottom plate, and every divides liquid piston cylinder and all cooperates and use and have weeping branch pipe, divide liquid piston cylinder, drainage tubule, piston head and piston rod.
Preferably, the grounding conductor assembly and the auxiliary conductive mechanism are all provided with at least four groups and are distributed in a horizontal annular array, an annular cavity for accommodating the coupling conductive ring is formed in the bottom plate, a plurality of rectangular long grooves for accommodating the shunt rods are radially formed in the periphery of the annular cavity, one end, away from the oil-immersed transformer, of the grounding lead penetrates through the lead box and extends into the annular cavity to be fixedly connected with the coupling conductive ring, and one end, away from the shunt rods, of the vertical conductive rod penetrates through the protective outer cylinder and is fixedly connected with the cone.
Preferably, be provided with the branch liquid piston tube of being no less than four groups through the U-shaped fastener is fixed on the protection urceolus inside wall, the one end that every group divides liquid piston tube is close to the protection urceolus inside wall all is linear distribution and has a weeping branch pipe of being no less than six, every weeping branch pipe runs through to insert and establishes on the protection urceolus lateral wall, and the inside of weeping branch pipe is provided with No. two check valves, fixed the inserting bottom of establishing the salt solution storage box of drainage tubule one end, the other end of drainage tubule stretches into the inside of protection urceolus and fixed the inserting bottom of establishing at branch liquid piston tube, and be provided with a check valve on the drainage tubule.
Preferably, every divides liquid piston barrel inner chamber upper end to slide and is provided with the piston head, piston rod one end is connected in a drive arrangement, the piston rod other end stretches into in dividing the inner chamber of liquid piston barrel and fixed connection piston head, the inside of bottom plate is provided with the installation cavity that is located the toroidal cavity upper end, the installation cavity is provided with a drive arrangement, a drive arrangement includes the drive disc, the drive disc rotates and installs in the installation cavity, the up end of drive disc is seted up and is no less than four chutes, all insert in every chute and be equipped with and dial the post, the upper end fixedly connected with balancing piece of dialling the post, the balancing piece symmetry is provided with two sets of push rods.
Preferably, one end of each push rod, which is far away from the balance block, is provided with a group of vertical blocks, the bottoms of the two groups of vertical blocks are connected with a connecting ring together, the lower end of the connecting ring is fixedly connected with the plurality of piston rods, one end of each vertical block, which is close to the balance block, is provided with a wedge-shaped groove, and the push rod is inserted into the wedge-shaped groove and acts on the inclined plane of the wedge-shaped groove.
Preferably, a rotating shaft is fixedly inserted into the central portion of the driving disc, a straight gear is fixedly connected to the upper end of the rotating shaft, a rack is connected to one side of the straight gear in a meshed mode, and the rack is driven by a hydraulic cylinder to move linearly.
Preferably, the inside regulation chamber that is equipped with of lead box adjusts the intracavity and is provided with lead wire guiding mechanism, lead wire guiding mechanism includes two sets of longitudinal symmetry's wire wheel and a set of wire wheel, and two sets of wire wheels all rotate and install the right-hand member in adjusting the chamber, and the wire wheel sets up between two sets of wire wheels, and the wire wheel rotates and installs on removing the seat, remove the seat and carry out the rectilinear sliding by the drive of second drive arrangement and along the lateral wall in regulation chamber.
Preferably, a group of guide blocks is fixedly connected to both sides of the moving seat, a limiting long groove for accommodating the guide blocks is formed in the side wall of the adjusting cavity, the guide blocks and the limiting long groove are both in a trapezoidal structure, the second driving device comprises a nut seat and a screw rod, the nut seat is sleeved on the screw rod, and the bottom of the nut seat is fixedly connected to the upper end of the moving seat.
Preferably, the spacing rotation of one end of lead screw is connected with the lead screw fixing base, and the roof in lead screw fixing base fixed connection regulation chamber, the other end of lead screw runs through the left side wall and the fixed connection runner of lead box, and the lead screw is close to the outside fixed cover that still overlaps of one end of runner, and on the outer wall of fixed cover fixed connection lead box, and still be provided with the positioning screw who contradicts in the lead screw outer wall on the fixed cover.
Compared with the prior art, the invention has the beneficial effects that:
1. after the device is used for a long time, the first driving device is opened and is utilized to act on the plurality of piston rods simultaneously, so that each piston rod drives the piston head matched with the piston rod to perform piston motion in the liquid separation piston cylinder, the saline in the saline storage box can be divided into the liquid separation piston cylinders through the plurality of drainage thin tubes, and the saline replenishment action at one time is realized; saline water in the liquid separating piston cylinder is evenly injected into the soil at the grounding electrode through the liquid leaking branch pipes in time, so that the conductivity of the soil is improved, the normal conductive effect of the grounding device is ensured, and the grounding service life of the power distribution network is prolonged to a certain extent;
2. according to the invention, the connecting conducting ring is matched with the shunt rods, the vertical conducting rods and the cone for use, so that on one hand, the conducting points are uniformly stressed and distributed, and the current is not concentrated on one conductor, thereby achieving the effect of prolonging the service life of the device; on the other hand, the total grounding area is greatly increased, so that the grounding resistance is correspondingly reduced, and the maintenance frequency of maintenance personnel is reduced;
3. according to the invention, two groups of vertically symmetrical wire guide wheels are matched with the wire pulling wheel for use, so that the grounding lead can be regularly wired, the reserved length of the grounding lead can meet the actual requirement, the grounding lead can be conveniently straightened in time, the grounding lead is prevented from being randomly accumulated in a lead box, the probability of grounding failure caused by the fact that the grounding lead is broken due to unexpected factors is effectively reduced, and the safety performance of the grounding device is greatly improved.
Drawings
FIG. 1 is a side view of the structure of the present invention;
FIG. 2 is a bottom view of the structure of the present invention;
FIG. 3 is a half-sectional view of the structure of the present invention;
FIG. 4 is a schematic view of the grounding device of the present invention;
FIG. 5 is a half-sectional view of the grounding device of the present invention;
FIG. 6 is a half-sectional view of the lead box of the present invention;
FIG. 7 is a schematic diagram of the primary grounding components of the present invention;
FIG. 8 is a schematic view of a ground conductor assembly of the present invention;
FIG. 9 is a schematic view of the connection between the first driving device and the auxiliary conductive mechanism according to the present invention;
FIG. 10 is a cut-away front view of the shield outer barrel of the present invention;
fig. 11 is a cut-away rear view of the shield outer cylinder of the present invention.
In the figure: the device comprises a bottom plate 1, a lead box 2, a lead wheel 201, a stay wheel 202, a moving seat 203, a guide block 204, a nut seat 205, a lead screw 206, a fixed sleeve 207, a rotating wheel 208, an oil-immersed transformer 3, a grounding lead 4, a connecting conductive ring 401, a shunt rod 402, a vertical conductive rod 403, a cone 404, a protective outer cylinder 5, a liquid leakage branch pipe 501, a liquid separation piston cylinder 502, a U-shaped clamping piece 503, a thin drainage pipe 504, a piston head 505, a piston rod 506, a saline water storage box 6, a driving disc 7, a connecting ring 701, a vertical block 702, a wedge-shaped groove 703, a push rod 704, a balance block 705, a poking column 706, a limiting edge 707, a chute 708, a spur gear 709, a rack 7010 and a hydraulic cylinder 7011.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 11, the present invention provides a grounding device for an oil-immersed transformer, including: the oil-immersed transformer comprises a bottom plate 1 and an oil-immersed transformer 3 arranged on the bottom plate 1, wherein a grounding lead 4 is arranged at the bottom of the oil-immersed transformer 3 in an extending mode, a lead box 2 is arranged outside the grounding lead 4, the upper end of the lead box 2 is connected with the oil-immersed transformer 3 in an abutting mode, the lower end of the lead box 2 is fixedly connected with the bottom plate 1, four corners of the lower end of the oil-immersed transformer 3 are fixedly connected with supporting legs, and the four supporting legs are fixedly connected to the bottom plate 1;
as shown in fig. 5 and 6, the inside regulation chamber that is equipped with of lead box 2, the regulation intracavity is provided with lead wire guiding mechanism, lead wire guiding mechanism includes two sets of vertically symmetrical's wire wheel 201 and a set of wire drawing wheel 202, two sets of wire wheels 201 all rotate and install the right-hand member in adjusting the chamber, wire drawing wheel 202 sets up between two sets of wire wheels 201, and wire drawing wheel 202 rotates and installs on removing seat 203, remove seat 203 by the drive of second drive arrangement and carry out the rectilinear sliding along the lateral wall in regulation chamber. Two groups of vertically symmetrical wire guide wheels 20 are matched with the wire pulling wheel 202 for use, so that the grounding lead 4 can be regularly wired, the reserved length of the grounding lead 4 can meet the actual requirement, the grounding lead 4 can be conveniently straightened in time, the grounding lead 4 is prevented from being randomly accumulated in the lead box 2, the probability of occurrence of grounding failure caused by the fact that the grounding lead is broken due to unexpected factors is effectively reduced, and the safety performance of the grounding device is greatly improved;
as shown in fig. 6, two sides of the movable base 203 are both fixedly connected with a group of guide blocks 204, a side wall of the adjusting cavity is provided with a limit long groove for accommodating the guide blocks 204, the guide blocks 204 and the limit long groove are both in a trapezoidal structure, the second driving device includes a nut base 205 and a lead screw 206, the nut base 205 is sleeved on the lead screw 206, and the bottom of the nut base 205 is fixedly connected with the upper end of the movable base 203. One end of the screw 206 is connected with a screw fixing seat in a limiting and rotating manner, the screw fixing seat is fixedly connected with the top wall of the adjusting cavity, the other end of the screw 206 penetrates through the left side wall of the lead box 2 and is fixedly connected with a rotating wheel 208, a fixing sleeve 207 is further sleeved outside one end of the screw 206 close to the rotating wheel 208, the fixing sleeve 207 is fixedly connected to the outer wall of the lead box 2, and a positioning screw abutting against the outer wall of the screw 206 is further arranged on the fixing sleeve 207;
when the grounding lead 4 is used, when the grounding lead 4 is installed, firstly, the rotating wheel 208 is held by hand to drive the screw rod 206 to rotate clockwise, and the screw rod 206 acts on the nut seat 205, so that the nut seat 205 drives the movable seat 203 and the stay wire wheel 202 to move towards the direction of the wire guide wheel 201, and at the moment, the grounding lead 4 is in a relaxed state, so that the grounding lead 4 can have enough connection length, and is convenient to be connected and fixed with a conductor component; after the grounding lead 4 is installed, the lead screw 206 is rotated counterclockwise, so that the nut seat 205 drives the moving seat 203 and the wire drawing wheel 202 to move in a direction away from the wire guiding wheel 201, and at this time, the grounding lead 4 is in a stretched state, and the line contact is kept stable.
As shown in figure 5 of the drawings, as shown in fig. 7 and 8, a plurality of groups of ground conductor assemblies are disposed on the lower end surface of the bottom plate 1, each ground conductor assembly mainly includes a coupling conductive ring 401, a plurality of shunt rods 402 are fixedly connected to the periphery of the coupling conductive ring 401, each shunt rod 402 is fixedly connected to a group of vertical conductive rods 403, the bottom of each group of vertical conductive rods 403 is fixedly connected to a cone 404, at least four groups of ground conductor assemblies and auxiliary conductive mechanisms are disposed, and are distributed in a horizontal annular array, an annular cavity for accommodating the coupling conductive ring 401 is disposed inside the bottom plate 1, a plurality of rectangular long grooves for accommodating the shunt rods 402 are radially disposed on the periphery of the annular cavity, one end of the ground lead 4, which is far away from the oil-immersed transformer 3, penetrates through the lead box 2 and extends into the annular cavity to be fixedly connected to the coupling conductive ring 401, and one end of the vertical conductive rods 403, which is far away from the shunt rods 402, penetrates through the protective outer barrel 5 and is fixedly connected to the cone 404. By arranging the connecting conducting ring 401 to be matched with the plurality of shunt rods 402, the vertical conducting rods 403 and the cone 404, on one hand, the conducting points are uniformly stressed and distributed, so that the current is not concentrated on one conductor, and the effect of prolonging the service life of the device is achieved; on the other hand greatly increased total ground connection area for ground resistance corresponding decline, thereby prolonged the ground connection life-span of distribution network to a certain extent, reduced maintainer's maintenance frequency.
As shown in fig. 7, 9 and 10, a protective outer cylinder 5 is sleeved outside a vertical conductive rod 403, the protective outer cylinder 5 is fixedly arranged at the bottom of a bottom plate 1, an auxiliary conductive mechanism is further arranged on the protective outer cylinder 5, the auxiliary conductive mechanism comprises a plurality of brine storage boxes 6, the brine storage boxes 6 are fixedly arranged on the upper end surface of the bottom plate 1, and each liquid-separating piston cylinder 502 is matched with a liquid-leaking branch pipe 501, a liquid-separating piston cylinder 502, a liquid-draining thin pipe 504, a piston head 505 and a piston rod 506;
at least four liquid-separating piston cylinders 502 are fixedly arranged on the inner side wall of the protective outer cylinder 5 through U-shaped clamping pieces 503, at least six liquid-leaking branch pipes 501 are linearly distributed at one end, close to the inner side wall of the protective outer cylinder 5, of each liquid-separating piston cylinder 502, each liquid-leaking branch pipe 501 is inserted into the side wall of the protective outer cylinder 5 in a penetrating manner, a second check valve is arranged inside each liquid-leaking branch pipe 501, one end of a drainage thin pipe 504 is fixedly inserted into the bottom of the saline water storage box 6, the other end of the drainage thin pipe 504 extends into the protective outer cylinder 5 and is fixedly inserted into the bottom end of the liquid-separating piston cylinder 502, and a first check valve is arranged on the drainage thin pipe 504;
when the device is used, when the piston rod 506 drives the piston head 505 to move downwards, the saline in the liquid separation piston cylinder 502 is compressed, the first check valve is closed, and the second check valve is opened, so that the saline in the liquid separation piston cylinder 502 can be uniformly injected into the soil at the grounding pole through the liquid leakage branch pipes 501, and the conductivity of the soil is improved; when the piston rod 506 drives the piston head 505 to move upwards, air in the liquid separation piston cylinder 502 is diluted, the second check valve is closed, and the first check valve is opened, so that saline in the saline storage box 6 can be distributed to the liquid separation piston cylinder 502 through the drainage tubules 504, and saline is added in time.
As shown in fig. 9-11, a piston head 505 is slidably disposed at the upper end of the inner cavity of each liquid-separating piston cylinder 502, one end of a piston rod 506 is connected to a first driving device, the other end of the piston rod 506 extends into the inner cavity of the liquid-separating piston cylinder 502 and is fixedly connected to the piston head 505, an installation cavity located at the upper end of the annular cavity is disposed inside the bottom plate 1, the installation cavity is provided with the first driving device, the first driving device comprises a driving disc 7, the driving disc 7 is rotatably installed in the installation cavity, the upper end surface of the driving disc 7 is provided with at least four inclined grooves 708, each inclined groove 708 is inserted with a shifting column 706, the upper end of the shifting column 706 is fixedly connected to a balance block 705, and the balance block 705 is symmetrically provided with two groups of push rods 704;
one end of each push rod 704, which is far away from the balance weight 705, is provided with a group of standing blocks 702, the bottoms of the two groups of standing blocks 2 are connected with a coupling ring 701 together, the lower end of the coupling ring 701 is fixedly connected with a plurality of piston rods 506, the bottom of the coupling ring 701 is also fixedly connected with a spring, one end of each standing block 2, which is close to the balance weight 705, is provided with a wedge-shaped groove 703, and the push rod 704 is inserted into the wedge-shaped groove 703 and acts on the inclined surface of the wedge-shaped groove 703. A rotating shaft is fixedly inserted in the center of the driving disc 7, a straight gear 709 is fixedly connected to the upper end of the rotating shaft, a rack 7010 is connected to one side of the straight gear 709 in a meshed manner, and the rack 7010 is driven by a hydraulic cylinder 7011 to move linearly. When the hydraulic cylinder 7011 is opened, a piston rod of the hydraulic cylinder 7011 extends out and acts on the rack 7010, so that the rack 7010 drives the spur gear 709 to rotate positively and negatively, when the spur gear 709 drives the driving disc 7 to rotate clockwise, the chute 708 on the spur gear 706 acts on the poking column 706, so that the poking column 706 drives the balance block 705 to move towards the spur gear 709, the push rod 704 is pulled out of the wedge-shaped groove 703 and the binding force on the vertical block 702 is relieved, and the coupling ring 701 drives the piston rod 506 to move upwards under the action of the rebound force of the spring; when the spur gear 709 drives the driving disc 7 to rotate counterclockwise, the inclined groove 708 on it acts on the poking column 706, so that the poking column 706 drives the balance weight 705 to move toward the protection outer cylinder 5, so that the push rod 704 continuously extends into the wedge-shaped groove 703 and acts on the inclined surface thereof, thereby causing the coupling ring 701 to press the spring and drive the piston rod 506 to move downward.
When the invention is used: in the process of installing the grounding lead 4, firstly, the rotating wheel 208 is held by hand to drive the screw rod 206 to rotate clockwise, and the screw rod 206 acts on the nut seat 205, so that the nut seat 205 drives the moving seat 203 and the stay wire wheel 202 to move towards the direction of the wire guide wheel 201, and at the moment, the grounding lead 4 is in a relaxed state, so that the grounding lead 4 can have enough connection length, and is convenient to be connected and fixed with a conductor component; after the grounding lead 4 is installed, the lead screw 206 is rotated counterclockwise, so that the nut seat 205 drives the moving seat 203 and the wire drawing wheel 202 to move in a direction away from the wire guiding wheel 201, and the grounding lead 4 is in a stretched straight state at the moment, so that the line contact is kept stable; by arranging the connecting conducting ring 401 to be matched with the plurality of shunt rods 402, the vertical conducting rods 403 and the cone 404, on one hand, the conducting points are uniformly stressed and distributed, so that the current is not concentrated on one conductor, and the effect of prolonging the service life of the device is achieved; on the other hand, the total grounding area is greatly increased, so that the grounding resistance is correspondingly reduced, the grounding service life of the power distribution network is prolonged to a certain extent, and the maintenance frequency of maintenance personnel is reduced;
after the device is used for a long time, by opening the hydraulic cylinder 7011, the piston rod of the hydraulic cylinder 7011 extends and acts on the rack 7010, so that the rack 7010 drives the spur gear 709 to rotate forward and backward, and when the spur gear 709 drives the driving disk 7 to rotate clockwise, the inclined groove 708 on the shifting rod 706 acts on the shifting rod 706, so that the shifting rod 706 drives the balance weight 705 to move towards the direction of the spur gear 709, causing push rod 704 to withdraw from wedge-shaped slot 703 and release the restraining force on riser block 702, so that the coupling ring 701 moves the piston rod 506 upward under the repulsive force of the spring, the piston head 505 moves upwards along with the piston head, so that the air in the liquid separation piston cylinder 502 is diluted, the second check valve is closed, the first check valve is opened, the saline in the saline storage box 6 can be shunted to the liquid-separating piston cylinder 502 through a plurality of drainage tubules 504, so as to realize a saline replenishing action; then, the first driving device acts on the coupling ring 701, so that the piston rod 506 drives the piston head 505 to move downwards, the saline in the liquid separation piston cylinder 502 is compressed, the first check valve is closed, and the second check valve is opened, so that the saline in the liquid separation piston cylinder 502 can be uniformly injected into the soil at the grounding electrode through the liquid leakage branch pipes 501, the conductivity of the soil is increased, and the normal conductivity effect of the grounding device is ensured.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides an oil-immersed transformer's earthing device, includes bottom plate (1) and sets up oil-immersed transformer (3) on bottom plate (1), its characterized in that: the bottom of the oil-immersed transformer (3) is provided with a grounding lead (4) in an extending mode, a lead box (2) is arranged outside the grounding lead (4), the lead box (2) and the oil-immersed transformer (3) are fixedly connected to a bottom plate (1), a lead adjusting mechanism for the grounding lead (4) is further arranged inside the lead box (2), a plurality of groups of grounding conductor assemblies are arranged on the lower end face of the bottom plate (1), each grounding conductor assembly mainly comprises a coupling conducting ring (401), a plurality of shunt rods (402) are fixedly connected to the periphery of the coupling conducting ring (401), each shunt rod (402) is fixedly connected to one group of vertical conducting rods (403), the bottom of each group of vertical conducting rods (403) is fixedly connected to a cone (404), a protective outer barrel (5) is sleeved outside the vertical conducting rods (403), and the protective outer barrel (5) is fixedly arranged at the bottom of the bottom plate (1), still be provided with supplementary electrically conductive mechanism on protection urceolus (5), supplementary electrically conductive mechanism includes that a plurality of salt solution store box (6), salt solution store box (6) set up the up end at bottom plate (1), and every divides liquid piston section of thick bamboo (502) all to cooperate to use and have weeping branch pipe (501), divide liquid piston section of thick bamboo (502), drainage tubule (504), piston head (505) and piston rod (506).
2. The grounding device of oil-filled transformer as claimed in claim 1, wherein: the ground conductor assembly and the auxiliary conducting mechanism are all provided with at least four groups and are distributed in a horizontal annular array mode, an annular cavity for containing the connecting conducting ring (401) is formed in the bottom plate (1), a plurality of rectangular long grooves for containing the shunt rods (402) are radially formed in the periphery of the annular cavity, one end, far away from the oil-immersed transformer (3), of the ground lead (4) penetrates through the lead box (2) and extends into the annular cavity to be fixedly connected with the connecting conducting ring (401), and one end, far away from the shunt rods (402), of the vertical conducting rod (403) penetrates through the protective outer barrel (5) and is fixedly connected with the cone (404).
3. The grounding device of oil-filled transformer as claimed in claim 2, wherein: protection urceolus (5) inside wall is gone up and is provided with branch liquid piston tube (502) that are no less than four groups through U-shaped fastener (503) is fixed, every branch liquid piston tube (502) of group all is linear distribution near the one end of protection urceolus (5) inside wall and has a weeping branch pipe (501) of being no less than six, every weeping branch pipe (501) are run through and are inserted and establish on protection urceolus (5) lateral wall, and the inside of weeping branch pipe (501) is provided with No. two check valves, drainage tubule (504) one end is fixed to be inserted and is established the bottom of storing box (6) in salt solution, the other end of drainage tubule (504) stretches into the inside of protection urceolus (5) and fixed the bottom of inserting and establishing in branch liquid piston tube (502), and be provided with a check valve on drainage tubule (504).
4. An oil-filled transformer grounding device according to claim 3, characterized in that: every divides liquid piston section of thick bamboo (502) inner chamber upper end to slide and is provided with piston head (505), piston rod (506) one end is connected in first drive arrangement, the piston rod (506) other end stretches into in the inner chamber of dividing liquid piston section of thick bamboo (502) and fixed connection piston head (505), the inside of bottom plate (1) is provided with the installation cavity that is located the toroidal cavity upper end, the installation cavity is provided with first drive arrangement, first drive arrangement includes drive disc (7), drive disc (7) rotate and install in the installation cavity, the up end of drive disc (7) is seted up and is no less than four chute (708), it has dialling post (706) all to insert in every chute (708), the upper end fixedly connected with balancing piece (705) of dialling post (706), balancing piece (705) symmetry is provided with two sets of push rods (704).
5. The grounding device of oil-filled transformer as set forth in claim 4, wherein: one end of each push rod (704) far away from the balance block (705) is provided with a group of vertical blocks (702), the bottoms of the two groups of vertical blocks (2) are connected with a connecting ring (701) together, the lower end of the connecting ring (701) is fixedly connected with a plurality of piston rods (506), the lower end of the connecting ring (701) is also fixedly connected with a spring, a wedge-shaped groove (703) is formed in one end, close to the balance block (705), of each vertical block (2), and the push rod (704) is inserted into the wedge-shaped groove (703) and acts on the inclined plane of the wedge-shaped groove (703).
6. The grounding device of oil-filled transformer as claimed in claim 5, wherein: the central part of the driving disc (7) is fixedly inserted with a rotating shaft, the upper end of the rotating shaft is fixedly connected with a straight gear (709), one side of the straight gear (709) is meshed with a rack (7010), and the rack (7010) is driven by a hydraulic cylinder (7011) to move linearly.
7. The grounding device of oil-filled transformer as claimed in claim 1, wherein: lead wire case (2) inside is equipped with adjusts the chamber, adjusts the intracavity and is provided with lead wire guiding mechanism, lead wire guiding mechanism includes two sets of longitudinal symmetry's wire wheel (201) and a set of wire wheel (202), and two sets of wire wheels (201) all rotate and install the right-hand member in adjusting the chamber, and wire wheel (202) set up between two sets of wire wheels (201), and wire wheel (202) rotate and install on removing seat (203), remove seat (203) by the drive of second drive arrangement and carry out rectilinear sliding along the lateral wall in adjusting the chamber.
8. The grounding device of oil-filled transformer as claimed in claim 7, wherein: the two sides of the movable seat (203) are fixedly connected with a group of guide blocks (204), the side wall of the adjusting cavity is provided with a limiting long groove for accommodating the guide blocks (204), the guide blocks (204) and the limiting long groove are both of a trapezoidal structure, the second driving device comprises a nut seat (205) and a lead screw (206), the nut seat (205) is sleeved on the lead screw (206), and the bottom of the nut seat (205) is fixedly connected with the upper end of the movable seat (203).
9. The grounding device of oil-filled transformer according to claim 8, characterized in that: the spacing rotation of one end of lead screw (206) is connected with the lead screw fixing base, and the roof in chamber is adjusted to lead screw fixing base fixed connection, the other end of lead screw (206) runs through the left side wall and fixed connection runner (208) of lead wire case (2), and lead screw (206) is close to the outside fixed cover that still overlaps of one end of runner (208) and is equipped with fixed cover (207), on the outer wall of fixed cover (207) fixed connection lead wire case (2), and still be provided with the positioning screw who contradicts in lead screw (206) outer wall on fixed cover (207).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210000536.8A CN114267970B (en) | 2022-01-04 | 2022-01-04 | Grounding device of oil immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210000536.8A CN114267970B (en) | 2022-01-04 | 2022-01-04 | Grounding device of oil immersed transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114267970A true CN114267970A (en) | 2022-04-01 |
| CN114267970B CN114267970B (en) | 2023-08-15 |
Family
ID=80832513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210000536.8A Active CN114267970B (en) | 2022-01-04 | 2022-01-04 | Grounding device of oil immersed transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114267970B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116073150A (en) * | 2023-03-28 | 2023-05-05 | 山西省安装集团股份有限公司 | Grounding device for mountain photovoltaic power station and use method thereof |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020018697A1 (en) * | 2000-04-14 | 2002-02-14 | Vinegar Harold J. | Heater element for use in an in situ thermal desorption soil remediation system |
| KR20090111020A (en) * | 2008-04-21 | 2009-10-26 | 노이즈프리미어랩 주식회사 | Grounding apparatus included grounding resistance reducing agent |
| CN101752684A (en) * | 2010-01-28 | 2010-06-23 | 高政 | Grounding electrode of anti-corrosion and adjustable grounding resistor |
| JP2011258529A (en) * | 2010-06-11 | 2011-12-22 | Chugoku Electric Power Co Inc:The | Grounding electrode of grounding resistance reducer injection method and grounding construction method using the same |
| JP2013084378A (en) * | 2011-10-06 | 2013-05-09 | Chugoku Electric Power Co Inc:The | Implantation device of ground resistance reduction agent and ground resistance reduction method |
| CN106066411A (en) * | 2016-08-05 | 2016-11-02 | 国家电网公司 | Auxiliary electrode structure for large-scale grounding network grounding resistance measurement |
| CN206541940U (en) * | 2017-03-27 | 2017-10-03 | 国网山东省电力公司枣庄供电公司 | A kind of electric power grounding device |
| CN111064016A (en) * | 2019-11-29 | 2020-04-24 | 邹平市供电公司 | Grounding device of electric power tower |
| CN111355044A (en) * | 2020-04-13 | 2020-06-30 | 蚌埠普源电气科技有限公司 | Distribution transformer grounding structure capable of changing soil resistivity |
| CN111360050A (en) * | 2020-03-26 | 2020-07-03 | 方军 | On-vehicle type pollutes land and restores injection device with online |
| CN212136222U (en) * | 2020-06-24 | 2020-12-11 | 陕西中汇机电设备有限公司 | Oil-immersed transformer ground lead device |
-
2022
- 2022-01-04 CN CN202210000536.8A patent/CN114267970B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020018697A1 (en) * | 2000-04-14 | 2002-02-14 | Vinegar Harold J. | Heater element for use in an in situ thermal desorption soil remediation system |
| KR20090111020A (en) * | 2008-04-21 | 2009-10-26 | 노이즈프리미어랩 주식회사 | Grounding apparatus included grounding resistance reducing agent |
| CN101752684A (en) * | 2010-01-28 | 2010-06-23 | 高政 | Grounding electrode of anti-corrosion and adjustable grounding resistor |
| JP2011258529A (en) * | 2010-06-11 | 2011-12-22 | Chugoku Electric Power Co Inc:The | Grounding electrode of grounding resistance reducer injection method and grounding construction method using the same |
| JP2013084378A (en) * | 2011-10-06 | 2013-05-09 | Chugoku Electric Power Co Inc:The | Implantation device of ground resistance reduction agent and ground resistance reduction method |
| CN106066411A (en) * | 2016-08-05 | 2016-11-02 | 国家电网公司 | Auxiliary electrode structure for large-scale grounding network grounding resistance measurement |
| CN206541940U (en) * | 2017-03-27 | 2017-10-03 | 国网山东省电力公司枣庄供电公司 | A kind of electric power grounding device |
| CN111064016A (en) * | 2019-11-29 | 2020-04-24 | 邹平市供电公司 | Grounding device of electric power tower |
| CN111360050A (en) * | 2020-03-26 | 2020-07-03 | 方军 | On-vehicle type pollutes land and restores injection device with online |
| CN111355044A (en) * | 2020-04-13 | 2020-06-30 | 蚌埠普源电气科技有限公司 | Distribution transformer grounding structure capable of changing soil resistivity |
| CN212136222U (en) * | 2020-06-24 | 2020-12-11 | 陕西中汇机电设备有限公司 | Oil-immersed transformer ground lead device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116073150A (en) * | 2023-03-28 | 2023-05-05 | 山西省安装集团股份有限公司 | Grounding device for mountain photovoltaic power station and use method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114267970B (en) | 2023-08-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114267970A (en) | Grounding device of oil-immersed transformer | |
| CN201303225Y (en) | Folded small box type substation | |
| CN212676856U (en) | Structure of distribution line parallel gap | |
| CN215990606U (en) | Mounting bracket for assembling high-voltage soft starting cabinet | |
| CN107785163B (en) | Wireless charging coil outgoing line winding complete machine | |
| CN207801299U (en) | Mobile substation supporting structure | |
| CN216250310U (en) | 66kV voltage level three-winding high-capacity power transformer | |
| CN212724911U (en) | Oil-immersed transformer capable of protecting connection interface | |
| CN212136222U (en) | Oil-immersed transformer ground lead device | |
| CN107978482A (en) | The electromagnetic repulsion mechanism that a kind of angle steel is built | |
| CN104167741A (en) | Horizontal directly-linked thyristor valve block | |
| CN114204468A (en) | Mobile power supply equipment | |
| CN109585159B (en) | Wireless charging coil outlet and winding integrated mechanism | |
| CN220627537U (en) | Distribution transformer rack protection against electric shock device | |
| CN201690152U (en) | Mining high voltage switch cabinet | |
| CN215772221U (en) | Compact structure's prepackage type transformer substation | |
| CN215645813U (en) | Intelligent metal armored safety high-voltage centrally installed switchgear | |
| CN214753506U (en) | Indoor high-voltage alternating-current isolating switch | |
| CN219591909U (en) | Low-voltage electrical cabinet | |
| CN218783425U (en) | High-low voltage cabinet base | |
| CN215645373U (en) | Grounding device is consolidated to regulator cubicle | |
| CN212907440U (en) | Driving mechanism of high-speed switch | |
| CN215008050U (en) | Novel high-efficient high-voltage vacuum circuit breaker of outdoor application | |
| CN213520895U (en) | European-style transformer substation | |
| CN213063129U (en) | Low-voltage transformation operation safety protection device |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240119 Address after: No. 2222, Tianwei West Road, Baoding City, Hebei Province 071000 Patentee after: BAODING TIANWEI BAOBIAN ELECTRIC Co.,Ltd. Address before: 066200 No. 9, Dongli Road, Shanhaiguan Economic Development Zone, Qinhuangdao City, Hebei Province Patentee before: TIANWEI BAOBIAN (QINHUANGDAO) TRANSFORMER Co.,Ltd. |
|
| TR01 | Transfer of patent right |