CN107959135A - A kind of novel integrated earthed system and construction method based on more performances - Google Patents
A kind of novel integrated earthed system and construction method based on more performances Download PDFInfo
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- CN107959135A CN107959135A CN201711405005.2A CN201711405005A CN107959135A CN 107959135 A CN107959135 A CN 107959135A CN 201711405005 A CN201711405005 A CN 201711405005A CN 107959135 A CN107959135 A CN 107959135A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
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Abstract
The invention belongs to substation safety to optimize operation study technical field, is related to a kind of novel integrated earthed system and construction method based on more performances.The system includes multiple-pin type Grounding Grids, bonded earth electrode and plasma ground body.The present invention relies on the excellent specific property of each grounding body by the way of the fusion of multiple-pin type Grounding Grids, bonded earth electrode and plasma ground body, improves the functional reliability of earthed system.Prepare new alloy material using Explosion composite technology and multicomponent alloy technology and introduce point discharge structure and apply, improve the velocity of discharge；Bonded earth electrode is made with composite technology, improves corrosion resistance, extends service life；Plasma ground body realizes adaptive complicated soil environment, and by improving soil resistivity, the functional reliability of indirect power-assisted Grounding Grids and bonded earth electrode.The present invention improves discharging efficiency, and the structural advantage unique according to its is, it can be achieved that substation runs steadily in the long term and the target of efficient operation.
Description
Technical field
The invention belongs to substation safety to optimize operation study technical field, is to ensure Substation Electric Equipment stable operation
An important ring, be related to a kind of novel integrated earthed system and construction method based on more performances.
Background technology
With the fast development of UHV AC/DC Transmission Technology and intelligent grid, transferring electricity from the west to the east, north and south supply mutually are sane
Carry out, the safe and stable operation of the electrical equipment of substation and transmission line of electricity highlights important, this is directly related to electric system
Highly effective and safe stable operation.
The fast development of China's economy has promoted electric load demand to climb to a higher point successively in recent years, in order to meet that load increasingly increases
Long needs, substation are also just developing towards large capacity, extra-high voltage, compact direction.Earth short circuit current is increasing, while state
Family's policy requirements new construction will account for less or not account for good farmland good native, and it is more and more to build the substation of high soil resistivity in,
For ensure substation put into operation after earthed system safety, design of ground system and construction seem increasingly important.Due to being grounded
Resistance, thermostabilization, equipment contact voltage, step voltage, a series of influence of earth potential interference, earthed system will not only meet to rush
Current technique requirement is hit, also to meet short circuit current flow release request under power frequency, and then ensure its service life.In addition, with intelligence
The popularization of energy substation, automation of transformation substations control, the large-scale application of smart machine, ground potential is to equipment such as electric meters
Interference, caused by error it is increasing, therefore the earthed system performance requirement of substation gradually steps up.
The earthed system of substation also rests on traditional earthing mode at present, still discharges with directly being entered using plain conductor
Mode, the earthing mode less than optimal performance, release current is poor, and ground resistance is larger, for current voltage levels, big electricity
Flow and put and effective protection of intelligent electric equipment is inadequate, be easy to cause substation and accident occur, there is damage in electrical equipment,
Maintenance personnel occurs surprisingly, causing unnecessary loss.
For the design method of earthed system, it presently, there are that ground resistance is larger, the velocity of discharge is poor, protection domain is smaller
And the technical problems such as the service life is shorter, the present invention rely on theoretical electric discharge, composite Materials Design research and earthed system to optimize and set
The key technologies such as meter, design a kind of novel integrated earthed system based on more performances, can reduce ground resistance, improve electric discharge speed
Degree, reduce floor space, expand protection domain and prolong the service life, and then meets System in Substation performance requirement,
Ensure the safe and stable operation of substation.
The content of the invention
A kind of the novel integrated earthed system and construction method based on more performances of the present invention, collection Grounding Grids, level
Grounding body and oblique grounding body form the compound earthed system of multiple-pin type, give full play to the flash-over characteristic of each grounding body, realize in one
Repid discharge, improves service life.The novel grounded system structure formed is even closer reasonable, saves floor occupying area, corrosion-resistant
Property and ageing resistance has been lifted, it can be achieved that the target of System in Substation long-life corrosion-resistant highly effective and safe reliability service.
Technical scheme：
A kind of novel integrated earthed system based on more performances, including multiple-pin type Grounding Grids, bonded earth electrode and wait
Ion grounding body；Multiple-pin type Grounding Grids, bonded earth electrode and the plasma ground body is vertically mounted on hollow half
On sphere spherical outside surface, arranged in emitting shape；The hemispheroidal plane upward, as reference direction, pacify by bonded earth electrode
Horizontal direction where hemispheroidal plane, multiple-pin type Grounding Grids be installed on hemispheroidal plane vertical direction,
The bottom centre position of hemisphere sphere, plasma ground body is vertically mounted on tilts 45 ° of hemisphere sphere with horizontal direction
On；The hemispheroidal Internal Spherical Surface bottom centre position installation vertical grounding electrode, hangs down with multiple-pin type Grounding Grids same
On straight line；
The multiple-pin type Grounding Grids, are symmetrically fitted around multiple needle-shaped electric discharges on vertical grounding electrode outer surface
Pole, is fixedly connected by internal and external threads；The bonded earth electrode includes built-in electrode and outer layer installs external conductive module, outside
Put 90 ° of horizontal interval vertical surrounding, 4 vertical holes, hole on the cross section of conductive module and run through built-in electrode；Described
It is ground pipe outside plasma ground body, inside is ion excitation module, and the outside of ground pipe is provided with loop module；
When pin type Grounding Grids, bonded earth electrode and the plasma ground body is connected with hemisphere, using screw thread
Connect the mode being combined with thermofussion welding.
The vertical grounding electrode of the multiple-pin type Grounding Grids is made of carbon/carbon-copper composite material, and needle-shaped discharging electrode is using purple
Copper solid material is made.
The bonded earth electrode, built-in electrode are metal material, including steel, copper, stainless steel and copper clad steel；External conduction
Module is to mix moisturizer and curing agent with graphite material, and proportionally fully shaking is uniform, mutually merges and carries out high temperature heat
Expansion, is made expanded graphite, by expanded graphite molding or roll-in, and selects inorfil to be bonded with synthetic fibers and emulsion type
Agent, composite conducting material is prepared into by roll-in, thermoplastic and moulding process；Built-in electrode uses punching press with external conductive module
Moulding process is made.
The plasma ground body, ground pipe include invertibity sustained release electrolytic salt.
The earthed system possesses the performance advantage of metallic ground body, bonded earth electrode and plasma ground body, according to different
Soil environment adjusts the regularity of distribution and number of the arrangement of each grounding body, and automatic regulation function is strong, constantly to surrounding them soil
Conductive ion is supplemented, improves surrounding soil resistivity, improves the velocity of discharge under complicated soil environment, and then ensures ground connection system
System highly effective and safe reliably works.
A kind of novel integrated earthed system construction method based on more performances, includes the following steps：
(1) four electrode method measure field soil resistivity is used, formula (1) is calculated when each grounding body is placed into the soil
Power frequency earthing resistance R1；
In formula, R1, ρ, l, d be respectively single grounding body ground resistance (Ω), soil resistivity (Ω m), grounding body length
Spend (m), grounding body equivalent diameter (m)；
(2) according to national standard and substation operation requirement, calculate and formulate the ground resistance of novel integrated earthed system
R；
(3) Grounding Grids, horizontal grounding objects and oblique grounding body of novel integrated earthed system are determined by field research
Can inbuilt depth, determine each grounding body size and structure；
(a) Grounding Grids, i.e. multiple-pin type Grounding Grids, including needle point discharge electrode and vertical grounding electrode, design needle point
Arrangement regulation and quantity of the discharge electrode on vertical grounding electrode, form multiple-pin type Grounding Grids；
Discharging structure of the needle point discharge electrode as grounding body, it can be adjusted quantity and arrangement according to soil environment requirement
Rule；Needle point discharge electrode is made of pure copper material, its head end is tip, its tail end has external screw thread；
Vertical grounding electrode is made of Copper covered steel material, cylindrical structural, and top has external screw thread, for connecting fixation；
Vertical grounding electrode internal thread matches with needle-shaped discharging electrode external screw thread, and edge is at the 500mm of vertical grounding electrode top to distance point
Hold at 100mm, interval 50mm arranges 4 needle point discharge electrodes, and around 90 ° of vertical grounding electrode interval vertical connection, forms spininess
Formula Grounding Grids；
(b) horizontal grounding objects, i.e. bonded earth electrode, including built-in electrode and external conductive module；External conductive module is adopted
It is made of nonmetallic anti-corrosion material, built-in electrode is made of metal alloy compositions, both are by shaping dies punching press in one；
Built-in electrode is made of copper product, cylindrical structure, and electrode tip is external screw thread with length, solid for connecting
It is fixed；
External conductive module is used to be made with soft graphite conductive material, cylinder-like structure；Conductive material includes graphite, gathers
Acrylamide and electroconductive cement, according to 7:1:2 ratio is prepared by fully mixing, and electric conductivity, plasticity and solidity are preferable；Outside
Perpendicular separation 100mm in conductive module is put, 4 holes are set around cylindrical shape conductive module, 90 ° of horizontal interval, hole is in circle
Column structure, in order to effectively radiate；
(c) oblique grounding body, that is, plasma ground body, mainly by plasma ground pipe, ion excitation module and loop module structure
Into；Have two kinds of anion packing materials inside and out it, exterior packing material has strong water absorbing force, and internal packing material is then
For ionization compound；
Plasma ground pipe uses red copper tubing, and pole pipe inner wall relies on ceramic coating technical finesse, improves resistance to strong acid, highly basic
Antiseptic property；Pole pipe outer wall reduces resistivity by spraying one layer of macromolecular antiseptic conductive material；Distinguish pole pipe top and bottom
Design moisture absorption hole and plasma diffusing W,Mo hole；Plasma ground tube top end is external screw thread with length, for connecting fixation；Moisture
Sucking is designed as 4 moisture absorption holes apart from upper end 40mm, aperture 2.5mm, 90 ° of horizontal interval around ground pipe；Ion
Release aperture aperture is 2mm, and at the 100mm of tip, 90 ° of horizontal interval is designed as 4 plasma diffusing W,Mo holes around ground pipe；
Ion excitation module is built in plasma ground pipe, and invertibity sustained release filler is filled in inside ground pipe,
According to water suction, discharge water reversible characteristic, discharges a large amount of ions；Ion excitation module is sent out by fully absorbing the moisture in soil
Raw deliquescent effect, active electron ion is effectively discharged into soil, promotes sustained release drop resistance outside conductor, and keep resistance value steady for a long time
It is fixed, so that ground pipe possesses water suction moisturizing, ionization conduction, long-acting slow-release function；
Loop module is placed outside plasma ground pipe, and outside is filled primarily with the material higher with cation exchange property,
And be equipped with it is long-acting, drop resistance, anti-corrosion function is strong, the coefficient of expansion is high and independent of temperature variations, high voltage withstanding impact it is a variety of
Chemical material is auxiliary material；Loop module interacts to form ground pipe with ion excitation module --- and the earth intermediate zone, increase connect
The contact area of ground pipe equivalent cross-sectional area and soil, eliminates the contact resistance between grounding body and soil, improves the electricity of grounding body
Field distribution, using the good permeance property of filler, is deep into soil and rock seam that to form tree root netted, increases drainage area,
Improve the velocity of discharge；
(4) novel integrated earthed system structure design
Point discharge theory and classical soil model are relied on, novel integrated earthed system structure design is hemisphere emitting shape；
Hemisphere is designed as inside and outside two sides, and hemisphere is made of Copper covered steel material, inside and outside copper facing；
Hemisphere Internal Spherical Surface connects a vertical grounding electrode, is made of Copper covered steel material, cylindrical structural, apart from head end 50mm
Place is uniformly distributed 4 cylinder discharge electrodes around 90 ° of earthing pole interval, and head end has screw thread；Spherical outside surface connection multiple-pin type vertically connects
Ground body；Upper and lower two Grounding Grids are closely to be connected by welding manner perpendicular to sphere；
4 set level grounding bodies are uniformly distributed around 90 ° of hemisphere face interval, are closely connected by screw thread perpendicular to sphere；
Globally 90 ° of middle part interval is uniformly distributed 4 to oblique grounding body, and oblique grounding body is plasma ground body, perpendicular to
Sphere tilts 45 ° of arrangements with horizontal direction；
In novel integrated earthed system, the Grounding Grids depth of burying that hemisphere connects in setting is apart from ground 500mm, then
The horizontal grounding objects depth of burying is vertically grounded apart from ground 800mm, the oblique grounding body depth of burying apart from ground 900mm, multiple-pin type
The body depth of burying is apart from ground 1000mm；
(5) formula calculates the number of each grounding body in novel integrated earthed system, according to actual demand, determines ground connection
Position of the body on hemisphere face, it is evenly distributed according to corresponding rule；In addition, the earthed system can vertically be connect by dividing into multiple-pin type
Ground body carries out tandem compound with another hemisphere emitting shape earthed system and forms pagoda-shaped earthed system structure, can also be set on
Connection with forming parallel group splice grafting system structure between electrode, and so on, meet demand for grounding.
Beneficial effects of the present invention：A kind of the novel integrated earthed system and construction method based on more performances of the present invention,
System relies on the excellent of each grounding body by the way of the fusion of multiple-pin type Grounding Grids, bonded earth electrode and plasma ground body
Different characteristic, improves the functional reliability of earthed system.Novel alloy is prepared using Explosion composite technology and multicomponent alloy technology
Point discharge structure is simultaneously introduced application by material, improves the velocity of discharge；Bonded earth electrode is made with composite technology, carries
High corrosion resistance, extends service life；Plasma ground body realizes adaptive complicated soil environment, and by improving soil
Resistivity, the functional reliability of indirect power-assisted Grounding Grids and bonded earth electrode.Novel integrated earthed system improves electric discharge
Efficiency, the structural advantage unique according to its is, it can be achieved that substation runs steadily in the long term and the target of efficient operation.
Brief description of the drawings
Fig. 1 is the multiple-pin type Grounding Grids schematic diagram of the present invention.
Fig. 2 is the bonded earth electrode schematic diagram of the present invention.
Fig. 3 is the plasma ground body schematic diagram of the present invention.
Fig. 4 is a kind of novel integrated earthed system schematic diagram based on more performances of the present invention.
In figure：1 needle-shaped discharging electrode；2 external conductive modules；3 holes；4 ion excitation modules.
Embodiment
Below in conjunction with attached drawing and technical solution, embodiment of the invention is further illustrated.
Multiple-pin type Grounding Grids as shown in Figure 1, integrate vertical grounding electrode and needle point discharge electrode, it passes through inside and outside
Screw thread, which matches, realizes connection, by applying new material complex technique, manufactures multiple-pin type using Cu-base composites and hangs down
Directly body.Vertical grounding electrode is made of carbon/carbon-copper composite material；Needle point discharge electrode structure, is made of red copper solid material.Non-
During use state, needle point discharge electrode and vertical grounding electrode are into discrete state；It is fixed to connect according to actual conditions during onsite application
Needle point discharge electrode and vertical grounding electrode are connect, realizes the structure of multiple-pin type Grounding Grids, its ground connection electricity is verified by experimental test
Whether resistance and discharge rate meet the requirements.
Bonded earth electrode as shown in Figure 2, realizes repid discharge with external conductive module by internal built-in electrode, carries
High corrosion resistance characteristics.Built-in electrode is designed as metal material, the materials such as steel, copper, stainless steel, copper clad steel can be selected, it is contemplated that lead
The problems such as electrical property, the velocity of discharge, economy and corrosion resistance, select material of the Copper covered steel material as built-in electrode；It is external
Conductive module mainly mixes moisturizer and curing agent with graphite material, and fully shaking is uniform according to a certain percentage, mutually fusion
And carry out high-temperature heat expansion, expanded graphite is made, by expanded graphite molding or roll-in, and select inorfil and synthetic fibers with
And the emulsified epoxy necessarily matched, composite conducting material is prepared into by roll-in, thermoplastic and moulding process.Composite conducting
Bonded earth electrode is made using punch forming process with built-in electrode in material, has good heat-resisting, conductive and corrosion resistance.
Plasma ground body as shown in Figure 3, ground pipe include invertibity sustained release electrolytic salt, can be constantly to exterior slow
Release, forms electrolytic ion switching path, with the exterior electrolyte being lost in of supplement, and then ensures the stability of grounding body.It can lead to
Cross whether detection resistance raises, supplement electrolytic salt as needed.Initiator is added in water, is stirred to whole dissolvings, is added and increase
Ion filler is imitated, stirs to paste and configures filler, by 1：4 prepared fillers are placed in soil, and grounding body is buried
In soil, measure whether its ground resistance meets the requirements.
A kind of novel integrated earthed system based on more performances as shown in Figure 4, combines multiple-pin type Grounding Grids (such as
Fig. 1), the performance advantage of bonded earth electrode (such as Fig. 2) and plasma ground body (such as Fig. 3), passes through the structure to different grounding bodies
Design and connection mode research, are blended in hemisphere face and are arranged in emitting shape, horizontal direction is bonded earth electrode, and vertical direction is more
Pin type Grounding Grids, plasma ground body then design position and tilt 45 ° of arrangements.The system structure when to ensure each grounding body with
The close effectively connection of connector, is threadedly coupled the tight type that earthed system is reinforced with the mode that thermofussion welding is combined, is constructing
When to ensure the depth of burying and backfill quality requirement in strict accordance with the design condition and construction environment of the system, tied to test
Fruit meet the requirements after can fixing seal bind.
Claims (9)
- A kind of 1. novel integrated earthed system based on more performances, it is characterised in that the novel integrated based on more performances Earthed system includes multiple-pin type Grounding Grids, bonded earth electrode and plasma ground body；The multiple-pin type Grounding Grids, Bonded earth electrode and plasma ground body are vertically mounted on hollow hemisphere spherical outside surface, are arranged in emitting shape；Described half Upward, as reference direction, bonded earth electrode is installed on the horizontal direction where hemispheroidal plane, spininess to the plane of sphere Formula Grounding Grids are installed on the vertical direction of hemispheroidal plane, the bottom centre position of hemisphere sphere, plasma ground Body is vertically mounted on the hemisphere sphere that 45 ° are tilted with horizontal direction；The hemispheroidal Internal Spherical Surface bottom centre position Vertical grounding electrode is installed, with multiple-pin type Grounding Grids on same vertical line；The multiple-pin type Grounding Grids, are symmetrically fitted around multiple needle-shaped discharging electrodes on vertical grounding electrode outer surface, lead to Internal and external threads are crossed to be fixedly connected；The bonded earth electrode includes built-in electrode and outer layer installs external conductive module, external to lead 90 ° of horizontal interval vertical surrounding, 4 vertical holes, hole run through built-in electrode on the cross section of electric module；The grade from It is ground pipe outside sub- grounding body, inside is ion excitation module, and the outside of ground pipe is provided with loop module.
- 2. the novel integrated earthed system according to claim 1 based on more performances, it is characterised in that the in-built electrical The material of pole is steel, copper, stainless steel or copper clad steel；The external conductive module is to mix moisturizer and curing with graphite material Agent, fully shaking is uniform, mutually merges and carries out high-temperature heat expansion, expanded graphite is made, by expanded graphite molding or roll-in, and Inorfil, synthetic fibers and emulsified epoxy are selected, composite conducting is prepared into by roll-in, thermoplastic and moulding process Material；The built-in electrode is made with external conductive module of punch forming process.
- 3. the novel integrated earthed system according to claim 1 or 2 based on more performances, it is characterised in that described connects Ground pipe includes invertibity sustained release electrolytic salt.
- 4. the novel integrated earthed system according to claim 1 or 2 based on more performances, it is characterised in that described is more When pin type Grounding Grids, bonded earth electrode, plasma ground body are connected with hemisphere, mutually tied with thermofussion welding using being threadedly coupled The mode of conjunction.
- 5. the novel integrated earthed system according to claim 3 based on more performances, it is characterised in that the multiple-pin type When Grounding Grids, bonded earth electrode, plasma ground body are connected with hemisphere, it is combined using threaded connection with thermofussion welding Mode.
- 6. the novel integrated earthed system based on more performances according to claim 1,2 or 5, it is characterised in that described The vertical grounding electrode of multiple-pin type Grounding Grids is made of carbon/carbon-copper composite material, and needle-shaped discharging electrode uses red copper solid material system Into.
- 7. the novel integrated earthed system according to claim 3 based on more performances, it is characterised in that the multiple-pin type The vertical grounding electrode of Grounding Grids is made of carbon/carbon-copper composite material, and needle-shaped discharging electrode is made of red copper solid material.
- 8. the novel integrated earthed system according to claim 4 based on more performances, it is characterised in that the multiple-pin type The vertical grounding electrode of Grounding Grids is made of carbon/carbon-copper composite material, and needle-shaped discharging electrode is made of red copper solid material.
- 9. a kind of construction method of the novel integrated earthed system based on more performances, it is characterised in that step is as follows：(1) four electrode method measure field soil resistivity is used, formula (1) calculates power frequency when each grounding body is placed into the soil Ground resistance R1；<mrow> <msub> <mi>R</mi> <mn>1</mn> </msub> <mo>=</mo> <mfrac> <mi>&rho;</mi> <mrow> <mn>2</mn> <mi>&pi;</mi> <mi>l</mi> </mrow> </mfrac> <mrow> <mo>(</mo> <mi>l</mi> <mi>n</mi> <mfrac> <mrow> <mn>8</mn> <mi>l</mi> </mrow> <mi>d</mi> </mfrac> <mo>-</mo> <mn>1</mn> <mo>)</mo> </mrow> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mrow> <mo>(</mo> <mn>1</mn> <mo>)</mo> </mrow> </mrow>In formula, R1, ρ, l, d be respectively that single grounding body ground resistance, soil resistivity, ground connection body length, grounding body are equivalent straight Footpath；(2) according to national standard and substation operation requirement, calculate and formulate the ground resistance R of novel integrated earthed system；(3) Grounding Grids, horizontal grounding objects and oblique grounding body for determining novel integrated earthed system by field research can bury If depth, determine each grounding body size and structure；(a) Grounding Grids, i.e. multiple-pin type Grounding Grids, including needle point discharge electrode and vertical grounding electrode, design needle point electric discharge Arrangement regulation and quantity of the pole on vertical grounding electrode, form multiple-pin type Grounding Grids；Discharging structure of the needle point discharge electrode as grounding body, it can be adjusted quantity and arrangement rule according to soil environment requirement Rule；Needle point discharge electrode is made of pure copper material, its head end is tip, its tail end has external screw thread；Vertical grounding electrode is made of Copper covered steel material, cylindrical structural, and top has external screw thread, for connecting fixation；Vertically Earthing pole internal thread matches with needle-shaped discharging electrode external screw thread, and edge is at the 500mm of vertical grounding electrode top to apart from tip At 100mm, interval 50mm arranges 4 needle point discharge electrodes, and around 90 ° of vertical grounding electrode interval vertical connection, forms multiple-pin type Grounding Grids；(b) horizontal grounding objects, i.e. bonded earth electrode, including built-in electrode and external conductive module；External conductive module is using non- Anti-corrosion of metal material is made, and built-in electrode is made of metal alloy compositions, both are by shaping dies punching press in one；Built-in electrode is made of copper product, cylindrical structure, and electrode tip is external screw thread with length, for connecting fixation；External conductive module is used to be made with soft graphite conductive material, cylinder-like structure；Conductive material includes graphite, polypropylene Acid amides and electroconductive cement, according to 7:1:2 ratio is prepared by fully mixing, and electric conductivity, plasticity and solidity are preferable；Led external Perpendicular separation 100mm in electric module, sets 4 holes, 90 ° of horizontal interval, hole is cylindrical around cylindrical shape conductive module Structure, in order to effectively radiate；(c) oblique grounding body, that is, plasma ground body, is mainly made of plasma ground pipe, ion excitation module and loop module； Have two kinds of anion packing materials inside and out it, exterior packing material has strong water absorbing force, and internal packing material is then Ionization compound；Plasma ground pipe uses red copper tubing, and pole pipe inner wall relies on ceramic coating technical finesse, improves resistance to strong acid, highly basic anti-corrosion Performance；Pole pipe outer wall reduces resistivity by spraying one layer of macromolecular antiseptic conductive material；Pole pipe top and bottom separately design Moisture absorption hole and plasma diffusing W,Mo hole；Plasma ground tube top end is external screw thread with length, for connecting fixation；Moisture absorption Pitch-row is designed as 4 moisture absorption holes from upper end 40mm, aperture 2.5mm, 90 ° of horizontal interval around ground pipe；Plasma diffusing W,Mo Hole aperture is 2mm, and at the 100mm of tip, 90 ° of horizontal interval is designed as 4 plasma diffusing W,Mo holes around ground pipe；Ion excitation module is built in plasma ground pipe, and invertibity sustained release filler is filled in plasma ground pipe Portion, according to water suction, discharge water reversible characteristic, discharges a large amount of ions；Ion excitation module by fully absorbing the moisture in soil, Generation deliquescent effect, active electron ion is effectively discharged into soil, promotes sustained release drop resistance outside conductor, and keep resistance value long-term Stablize, so that ground pipe possesses water suction moisturizing, ionization conduction, long-acting slow-release function；Loop module is placed outside plasma ground pipe, and outside filling is equipped with the material higher with cation exchange property Long-acting, drop resistance, anti-corrosion function is strong, the coefficient of expansion is high and a variety of chemical materials of independent of temperature variations, high voltage withstanding impact For auxiliary material；Loop module interacts to form ground pipe-the earth intermediate zone with ion excitation module, increases equivalent section of ground pipe The contact area of area and soil, eliminates the contact resistance between grounding body and soil, improves the electric field distribution of grounding body, utilizes The good permeance property of filler, be deep into soil and rock seam in formed tree root it is netted, increase drainage area, improve electric discharge speed Degree；(4) novel integrated earthed system structure designPoint discharge theory and classical soil model are relied on, novel integrated earthed system structure design is hemisphere emitting shape；Hemisphere Inside and outside two sides is designed as, hemisphere is made of Copper covered steel material, inside and outside copper facing；Hemisphere Internal Spherical Surface connects a vertical grounding electrode, is made of Copper covered steel material, cylindrical structural, the ring at head end 50mm 4 cylinder discharge electrodes are uniformly distributed around earthing pole interval for 90 °, and head end has screw thread；Spherical outside surface connects multiple-pin type Grounding Grids； Upper and lower two Grounding Grids are closely to be connected by welding manner perpendicular to sphere；4 set level grounding bodies are uniformly distributed around 90 ° of hemisphere face interval, are closely connected by screw thread perpendicular to sphere；Globally 90 ° of middle part interval is uniformly distributed 4 to oblique grounding body, and oblique grounding body is plasma ground body, perpendicular to sphere 45 ° of arrangements are tilted with horizontal direction；In novel integrated earthed system, the Grounding Grids depth of burying that hemisphere connects in setting is apart from ground 500mm, then horizontal The grounding body depth of burying is buried apart from ground 800mm, the oblique grounding body depth of burying apart from ground 900mm, multiple-pin type Grounding Grids If depth distance ground 1000mm；(5) formula calculates the number of each grounding body in novel integrated earthed system, according to actual demand, determines that grounding body exists Position on hemisphere face, it is evenly distributed according to corresponding rule；In addition, the earthed system can be by dividing into multiple-pin type Grounding Grids Carry out tandem compound with another hemisphere emitting shape earthed system and form pagoda-shaped earthed system structure, or set on electrode it Between connection with forming parallel group splice grafting system structure, and so on, meet demand for grounding.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109782145A (en) * | 2018-12-14 | 2019-05-21 | 国网山东省电力公司济宁供电公司 | A kind of multiple-pin type Grounding Grids key parameter test device and method |
| CN110542797A (en) * | 2019-10-11 | 2019-12-06 | 河南四达电力设备股份有限公司 | method for testing contact performance difference between different grounding materials and soil |
| CN117995541A (en) * | 2024-04-03 | 2024-05-07 | 任丘市召明电力设备有限公司 | Transformer grounding construction equipment |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100744816B1 (en) * | 2007-05-23 | 2007-08-01 | 주식회사 종합건축사사무소 이건 | Concrete earthing apparatus for apartment house |
| CN104167614A (en) * | 2014-07-16 | 2014-11-26 | 大连理工大学 | Multi-needle vertical grounding body |
| CN104362441A (en) * | 2014-11-18 | 2015-02-18 | 句容华源电器设备有限公司 | Grounding grid resistance reduction method for high soil resistivity transformer substation |
| CN104953434A (en) * | 2015-05-26 | 2015-09-30 | 国网黑龙江省电力有限公司鹤岗供电公司 | Design method of novel multi-pin vertical earthing system |
| CN105514629A (en) * | 2016-01-28 | 2016-04-20 | 国家电网公司 | Compound ground electrode |
| CN205303720U (en) * | 2016-01-21 | 2016-06-08 | 武汉黉门电工科技有限公司 | Flexible combination grounding body |
| CN205543271U (en) * | 2016-01-19 | 2016-08-31 | 三峡大学 | Novel three -dimensional earth mat |
| CN205790429U (en) * | 2016-05-31 | 2016-12-07 | 中铁二十二局集团电气化工程有限公司 | Lightning protection grounding component |
| CN206271901U (en) * | 2016-08-29 | 2017-06-20 | 中国人民解放军63926部队 | A kind of electrolytic ion earthed system |
-
2017
- 2017-12-22 CN CN201711405005.2A patent/CN107959135A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100744816B1 (en) * | 2007-05-23 | 2007-08-01 | 주식회사 종합건축사사무소 이건 | Concrete earthing apparatus for apartment house |
| CN104167614A (en) * | 2014-07-16 | 2014-11-26 | 大连理工大学 | Multi-needle vertical grounding body |
| CN104362441A (en) * | 2014-11-18 | 2015-02-18 | 句容华源电器设备有限公司 | Grounding grid resistance reduction method for high soil resistivity transformer substation |
| CN104953434A (en) * | 2015-05-26 | 2015-09-30 | 国网黑龙江省电力有限公司鹤岗供电公司 | Design method of novel multi-pin vertical earthing system |
| CN205543271U (en) * | 2016-01-19 | 2016-08-31 | 三峡大学 | Novel three -dimensional earth mat |
| CN205303720U (en) * | 2016-01-21 | 2016-06-08 | 武汉黉门电工科技有限公司 | Flexible combination grounding body |
| CN105514629A (en) * | 2016-01-28 | 2016-04-20 | 国家电网公司 | Compound ground electrode |
| CN205790429U (en) * | 2016-05-31 | 2016-12-07 | 中铁二十二局集团电气化工程有限公司 | Lightning protection grounding component |
| CN206271901U (en) * | 2016-08-29 | 2017-06-20 | 中国人民解放军63926部队 | A kind of electrolytic ion earthed system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109782145A (en) * | 2018-12-14 | 2019-05-21 | 国网山东省电力公司济宁供电公司 | A kind of multiple-pin type Grounding Grids key parameter test device and method |
| CN110542797A (en) * | 2019-10-11 | 2019-12-06 | 河南四达电力设备股份有限公司 | method for testing contact performance difference between different grounding materials and soil |
| CN117995541A (en) * | 2024-04-03 | 2024-05-07 | 任丘市召明电力设备有限公司 | Transformer grounding construction equipment |
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