CN102074807A - Composite grounding unit - Google Patents
Composite grounding unit Download PDFInfo
- Publication number
- CN102074807A CN102074807A CN2010106013312A CN201010601331A CN102074807A CN 102074807 A CN102074807 A CN 102074807A CN 2010106013312 A CN2010106013312 A CN 2010106013312A CN 201010601331 A CN201010601331 A CN 201010601331A CN 102074807 A CN102074807 A CN 102074807A
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- China
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- kilograms
- release agent
- sustained release
- grounding unit
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- 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.)
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Abstract
The invention discloses a composite grounding unit and relates to a device which can realize or maintain conductive connection. The composite grounding unit consists of an upper half part and a lower half part, wherein the upper half part consists of the following raw materials in percentage by mass: 55 to 75 percent of conducting graphite, 5 to 10 percent of electrolyte ion, 10 to 20 percent of humectant, 3 to 5 percent of adhesive and 4 to 6 percent of anticorrosive electrode core; and the lower half part consists of the following raw materials in percentage by mass: 55 to 75 percent of conducting graphite, 10 to 20 percent of electrolyte ion, 5 to 10 percent of humectant, 3 to 5 percent of adhesive and 5 to 10 percent of anticorrosive electrode core. The composite grounding unit has low impedance; short-circuit current caused by lightning and a power failure is eliminated; the service life of the composite grounding unit is over 40 years; and the composite grounding unit is maintenance-free.
Description
[technical field]
The present invention relates to a kind of device that conduction connects of realizing or keep.
[background technology]
Diversified electrical equipment and electronic equipment are widely used in the various aspects of national economy; but also develop rapidly and to grow in strength continuing; and the right soil environment of setting up of power equipment has certain requirement; it must be guaranteed personal safety, can also provide safe and reliable protection to equipment; avoid power failure, reduce loss of outage.So key component that effective, low-impedance grounding system is whole electric power system.And because the different impedances of the content and structure of of different soil types are also different, and the impedance of the soil of areal different soil is all inequality, the different of soil moisture and temperature also have certain influence to impedance, and these problems have all increased the fail safe reliability of power equipment significantly.
[summary of the invention]
The present invention aims to provide and a kind ofly can provide a low-impedance compound ground unit in the higher place of soil resistivity.
Compound ground unit of the present invention, by first, second two parts form, described the first half is made up of the raw material of following mass ratio:
Electrically conductive graphite 55--75
Electrolyte ion 5-10
NMF 10-20
Adhesive 3-5
Anticorrosion electrode cores 4-6
The latter half is made up of the raw material of following mass ratio:
Electrically conductive graphite 55--75
Electrolyte ion 10-20
NMF 5-10
Adhesive 3-5
Anticorrosion electrode cores 5-10
Wherein, described electrically conductive graphite is preferably 400 orders.
Described electrolyte ion is preferably silicate.
Described NMF is preferably one or more water-absorbing resins.Further preferably, the water of described water-absorbing resin suction meeting absorption own wt more than 500 times.
Described adhesive is preferably electroconductive binder.
Described anticorrosion electrode cores is preferably Hot-dip zinc-coated flat steel sheet or copper belt.
Compound ground unit of the present invention has the following advantages compared to prior art:
1, its impedance is very low, and 25 ℃ of following resistivity of room temperature are less than 5 Ω m, and thunder and lightning and power failure short circuit current can effectively dissipate.
2, its useful life can be more than 40 years, and Maintenance free.
When 3, it being embedded in the soil that soil resistivity is 300 (Ω m), the power frequency earthing resistance that records under the room temperature environment is between 37.8 (Ω)-47.4 (Ω), itself fall the resistance coefficient be about 0.126.
[embodiment]
Embodiment one
Prepare
1, the first half material
55 kilograms of electrically conductive graphites
5 kilograms of silicate
10 kilograms of water-absorbing resins
3 kilograms of electroconductive binders
4 kilograms of Hot-dip zinc-coated flat steel sheets
Mix;
2, the latter half material
55 kilograms of electrically conductive graphites
10 kilograms of silicate
5 kilograms of water-absorbing resins
3 kilograms of electroconductive binders
5 kilograms of Hot-dip zinc-coated flat steel sheets
Mix;
Then with the first half material and the latter half material press forming on demand under high pressure together.
Embodiment two
Prepare
1, the first half material
75 kilograms of electrically conductive graphites
10 kilograms of silicate
20 kilograms of water-absorbing resins
5 kilograms of electroconductive binders
6 kilograms of Hot-dip zinc-coated flat steel sheets
Mix;
2, the latter half material
75 kilograms of electrically conductive graphites
20 kilograms of silicate
10 kilograms of water-absorbing resins
5 kilograms of electroconductive binders
10 kilograms of Hot-dip zinc-coated flat steel sheets
Mix;
Then with the first half material and the latter half material press forming on demand under high pressure together.
Embodiment three
Prepare
1, the first half material
66 kilograms of electrically conductive graphites
8 kilograms of silicate
16 kilograms of water-absorbing resins
3 kilograms of electroconductive binders
5 kilograms of Hot-dip zinc-coated flat steel sheets
Mix;
2, the latter half material
66 kilograms of electrically conductive graphites
12 kilograms of silicate
9 kilograms of water-absorbing resins
3 kilograms of electroconductive binders
5 kilograms of Hot-dip zinc-coated flat steel sheets
Mix;
Then with the first half material and the latter half material press forming on demand under high pressure together.
Claims (7)
1. compound ground unit by first, second two parts form, is characterized in that described the first half is made up of the raw material of following mass ratio:
Electrically conductive graphite 55--75
Electrolyte ion 5-10
NMF 10-20
Adhesive 3-5
Anticorrosion electrode cores 4-6
The latter half is made up of the raw material of following mass ratio:
Electrically conductive graphite 55--75
Electrolyte ion 10-20
NMF 5-10
Adhesive 3-5
Anticorrosion electrode cores 5-10.
2. ion sustained release agent as claimed in claim 1 or 2 is characterized in that described electrically conductive graphite is 400 orders.
3. ion sustained release agent as claimed in claim 1 or 2 is characterized in that described electrolyte ion is a silicate.
4. ion sustained release agent as claimed in claim 1 or 2 is characterized in that described NMF is one or more water-absorbing resins.
5. ion sustained release agent as claimed in claim 5 is characterized in that described water-absorbing resin suction can absorb the water of own wt more than 500 times.
6. ion sustained release agent as claimed in claim 1 or 2 is characterized in that described adhesive is an electroconductive binder.
7. ion sustained release agent as claimed in claim 1 or 2 is characterized in that described anticorrosion electrode cores is Hot-dip zinc-coated flat steel sheet or copper belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010601331 CN102074807B (en) | 2010-12-20 | 2010-12-20 | Composite grounding unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010601331 CN102074807B (en) | 2010-12-20 | 2010-12-20 | Composite grounding unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102074807A true CN102074807A (en) | 2011-05-25 |
| CN102074807B CN102074807B (en) | 2013-07-17 |
Family
ID=44033221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010601331 Expired - Fee Related CN102074807B (en) | 2010-12-20 | 2010-12-20 | Composite grounding unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102074807B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105610033A (en) * | 2015-10-17 | 2016-05-25 | 国网江西省电力公司赣州供电分公司 | Manufacturing method of novel conductive anticorrosion grounding module |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6433861A (en) * | 1987-07-28 | 1989-02-03 | Denki Kagaku Kogyo Kk | Grounding resistance reducing agent |
| CN1080624A (en) * | 1992-06-26 | 1994-01-12 | 陈惠民 | Super-strong moisture absorbing resin type resistance reducing agent for grounding |
| CN1173720A (en) * | 1997-06-11 | 1998-02-18 | 王德言 | Method for prodn. of low resistance earthing module material |
| JP2000072517A (en) * | 1998-08-24 | 2000-03-07 | Sekisui Chem Co Ltd | Electroconductive cement composition and grounding electrode thereof |
| US6121543A (en) * | 1998-07-06 | 2000-09-19 | Hallmark; Clayton L. | Groundbed electrode with graphite containing cement |
| CN1483699A (en) * | 2002-09-17 | 2004-03-24 | 国家电力公司中南勘测设计研究院圭臬 | Grounding conductive concrete |
| CN2845202Y (en) * | 2005-08-16 | 2006-12-06 | 成都圣威电气有限公司 | The prevention physical resistance-reducing agent earthing module |
| KR100962246B1 (en) * | 2009-12-11 | 2010-06-11 | (주)의제전기설비연구원 | Carbon grounding electrode and manufacturing method thereof |
-
2010
- 2010-12-20 CN CN 201010601331 patent/CN102074807B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6433861A (en) * | 1987-07-28 | 1989-02-03 | Denki Kagaku Kogyo Kk | Grounding resistance reducing agent |
| CN1080624A (en) * | 1992-06-26 | 1994-01-12 | 陈惠民 | Super-strong moisture absorbing resin type resistance reducing agent for grounding |
| CN1173720A (en) * | 1997-06-11 | 1998-02-18 | 王德言 | Method for prodn. of low resistance earthing module material |
| US6121543A (en) * | 1998-07-06 | 2000-09-19 | Hallmark; Clayton L. | Groundbed electrode with graphite containing cement |
| JP2000072517A (en) * | 1998-08-24 | 2000-03-07 | Sekisui Chem Co Ltd | Electroconductive cement composition and grounding electrode thereof |
| CN1483699A (en) * | 2002-09-17 | 2004-03-24 | 国家电力公司中南勘测设计研究院圭臬 | Grounding conductive concrete |
| CN2845202Y (en) * | 2005-08-16 | 2006-12-06 | 成都圣威电气有限公司 | The prevention physical resistance-reducing agent earthing module |
| KR100962246B1 (en) * | 2009-12-11 | 2010-06-11 | (주)의제전기설비연구원 | Carbon grounding electrode and manufacturing method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 石嘉芳，卢秉江: "应用石墨材质制作接地技术与施工", 《辽宁气象》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105610033A (en) * | 2015-10-17 | 2016-05-25 | 国网江西省电力公司赣州供电分公司 | Manufacturing method of novel conductive anticorrosion grounding module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102074807B (en) | 2013-07-17 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20161220 |