CN107151448A - A kind of Current Transformer Secondary overvoltage protector protective case - Google Patents

A kind of Current Transformer Secondary overvoltage protector protective case Download PDF

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Publication number
CN107151448A
CN107151448A CN201710373914.6A CN201710373914A CN107151448A CN 107151448 A CN107151448 A CN 107151448A CN 201710373914 A CN201710373914 A CN 201710373914A CN 107151448 A CN107151448 A CN 107151448A
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CN
China
Prior art keywords
parts
protective case
current transformer
transformer secondary
overvoltage protector
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.)
Pending
Application number
CN201710373914.6A
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Chinese (zh)
Inventor
李志军
李鹏
田利坤
王晓梅
王萌
徐传光
杨振田
蒋仁江
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rizhao Power Supply Co of State Grid Shandong Electric Power Co Ltd
Original Assignee
Rizhao Power Supply Co of State Grid Shandong Electric Power Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rizhao Power Supply Co of State Grid Shandong Electric Power Co Ltd filed Critical Rizhao Power Supply Co of State Grid Shandong Electric Power Co Ltd
Priority to CN201710373914.6A priority Critical patent/CN107151448A/en
Publication of CN107151448A publication Critical patent/CN107151448A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
    • C08L83/04Polysiloxanes
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2217Oxides; Hydroxides of metals of magnesium
    • C08K2003/222Magnesia, i.e. magnesium oxide
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2217Oxides; Hydroxides of metals of magnesium
    • C08K2003/2224Magnesium hydroxide
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2296Oxides; Hydroxides of metals of zinc
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/30Sulfur-, selenium- or tellurium-containing compounds
    • C08K2003/3009Sulfides
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/08Stabilised against heat, light or radiation or oxydation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00Applications
    • C08L2203/20Applications use in electrical or conductive gadgets
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/02Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

Abstract

The present invention relates to overvoltage protection device accessory production technical field, and in particular to a kind of Current Transformer Secondary overvoltage protector protective case.It is made up of the raw material of following parts by weight:100 parts of rubber matrix, 5 parts of vulcanizing agent PDM1,23 parts of vulcanization accelerator TMTD, 58 parts of zinc oxide, 0.5 1 parts of antiscorching agent N cyclohexylthiophthalimides, 12 parts of antioxidant, 23 parts of age resistor, 12 parts of magnesia, 10 14 parts of plasticizer DOP, 0.5 1.5 parts of silane coupler, 6,911 1.5 3 parts of light stabilizer, 24 parts of metallocene PE, 8 13 parts of Magnesium Hydroxide Inorganic Flame Retardant, 13 parts of molybdenum disulfide, 35 parts of lubricant, 18 23 parts of white carbon, 12 parts of stabilizer Dythal.Protective case that the present invention is provided is ageing-resistant, acid-proof alkaline is good.

Description

A kind of Current Transformer Secondary overvoltage protector protective case
Technical field
The present invention relates to overvoltage protection device accessory production technical field, and in particular to a kind of Current Transformer Secondary overvoltage Protector protective case.
Background technology
Current Transformer Secondary overvoltage protector is the generation in order to prevent current transformer from second open circuit occurring in operation Significant damage and the over-pressure safety device designed, mainly for the protection of generator, transformer, vacuum switch, bus, motor etc. Infringement of the electric equipment from overvoltage.
In the prior art, its protective case is protected in the outside of overvoltage protection device provided with one, but is used in long-time During, protective case easily weares and teares and aging, causes extraneous soda acid composition to enter and damage piezo-resistance.
The content of the invention
In view of the shortcomings of the prior art, the invention provides a kind of good current transformer two of ageing-resistant, acid-proof alkaline Secondary overvoltage protector protective case.
To realize object above, the present invention is achieved by the following technical programs:
A kind of Current Transformer Secondary overvoltage protector protective case, is made up of the raw material of following parts by weight:Rubber matrix 100 parts, PDM1-5 parts of vulcanizing agent, 2-3 parts of vulcanization accelerator TMTD, 5-8 parts of zinc oxide, antiscorching agent N- cyclohexyl thios neighbour's benzene two 0.5-1 parts of carboximide, 1-2 parts of antioxidant, 2-3 parts of age resistor, 1-2 parts of magnesia, 10-14 parts of plasticizer DOP, silane is even 0.5-1.5 parts of agent of connection, 69111.5-3 parts of light stabilizer, 2-4 parts of metallocene PE, 8-13 parts of Magnesium Hydroxide Inorganic Flame Retardant, 1-3 parts of molybdenum disulfide, 3-5 parts of lubricant, 18-23 parts of white carbon, 1-2 parts of stabilizer Dythal.
Further, described Current Transformer Secondary overvoltage protector protective case, by the raw material group of following parts by weight Into:100 parts of rubber matrix, PDM3 parts of vulcanizing agent, 2 parts of vulcanization accelerator TMTD, 6 parts of zinc oxide, antiscorching agent N- cyclohexyl thios 0.8 part of phthalimide, 1 part of antioxidant, 3 parts of age resistor, 1 part of magnesia, 11.5 parts of plasticizer DOP is silane coupled 1 part of agent, 69112 parts of light stabilizer, 3 parts of metallocene PE, 10 parts of Magnesium Hydroxide Inorganic Flame Retardant, 2 parts of molybdenum disulfide, lubrication 4 parts of agent, 21 parts of white carbon, 1 part of stabilizer Dythal.
Further, the rubber matrix is methyl vinyl phenyl silicon rubber.
Further, the age resistor is that additional proportion is 1.3-1.8:The mixing of 1 antioxidant D and antioxidant 4010NA Thing.
Further, the antioxidant is diaryl-p-phenylenediamine's mixture, four【3- (3,5- di-t-butyl -4- hydroxyls Phenyl) propionic acid】Pentaerythritol ester, β, the one of which of β '-vulcanization dipropionic acid distearate.
Further, the lubricant is magnesium stearate, zinc stearate, ethylene bis stearamide, silicone powder, Tissuemat E In one of which or any two kinds of mixtures.
Beneficial effects of the present invention are:
1st, the protective case that the present invention is provided, rationally, the vulcanizing system design of use can reduce compression forever to raw material components compatibility Deformation long, shortens cure time, improves heat resistance;
2nd, the present invention uses methyl vinyl phenyl silicon rubber for main body so that protective case has good resistant to chemical media Corrosive nature, and raw material is cheap and easy to get, production cost is low, and product heat endurance is high, low toxicity.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the implementation of the present invention Example, the technical scheme in the embodiment of the present invention is clearly and completely described.Based on the embodiment in the present invention, this area The every other embodiment that those of ordinary skill is obtained under the premise of creative work is not made, belongs to protection of the present invention Scope.
Embodiment 1:
A kind of Current Transformer Secondary overvoltage protector protective case, is made up of the raw material of following parts by weight:Ethylene methacrylic 100 parts of base phenyl siloxane rubber, PDM3 parts of vulcanizing agent, 2 parts of vulcanization accelerator TMTD, 6 parts of zinc oxide, antiscorching agent N- cyclohexyl thios 0.8 part of phthalimide, 1 part of diaryl-p-phenylenediamine's mixture, additional proportion is 1.4:1 antioxidant D and age resistor 3 parts of 4010NA mixtures, 1 part of magnesia, 11.5 parts of plasticizer DOP, 1 part of silane coupler, 69112 parts of light stabilizer, cyclopentadienyl gold Belong to 3 parts of polyethylene, 10 parts of Magnesium Hydroxide Inorganic Flame Retardant, 2 parts of molybdenum disulfide, 4 parts of magnesium stearate, 21 parts of white carbon, stabilizer 1 part of Dythal.
Embodiment 2:
A kind of Current Transformer Secondary overvoltage protector protective case, is made up of the raw material of following parts by weight:Ethylene methacrylic 100 parts of base phenyl siloxane rubber, PDM1 parts of vulcanizing agent, 2 parts of vulcanization accelerator TMTD, 8 parts of zinc oxide, antiscorching agent N- cyclohexyl thios 1 part of phthalimide, four【3- (3,5- di-tert-butyl-hydroxy phenyl) propionic acid】1.5 parts of pentaerythritol ester, additional proportion For 1.6:12 parts of antioxidant D and antioxidant 4010NA mixture, 2 parts of magnesia, 12 parts of plasticizer DOP, silane coupler 1 Part, 69111.5-3 parts of light stabilizer, 4 parts of metallocene PE, 13 parts of Magnesium Hydroxide Inorganic Flame Retardant, 1 part of molybdenum disulfide, firmly 4 parts of resin acid zinc, 23 parts of white carbon, 1 part of stabilizer Dythal.
Embodiment 3:
A kind of Current Transformer Secondary overvoltage protector protective case, is made up of the raw material of following parts by weight:Ethylene methacrylic 100 parts of base phenyl siloxane rubber, PDM4 parts of vulcanizing agent, 3 parts of vulcanization accelerator TMTD, 7 parts of zinc oxide, antiscorching agent N- cyclohexyl thios 0.5 part of phthalimide, β, β ' -2 parts of vulcanization dipropionic acid distearate, additional proportion is 1.3:1 antioxidant D and anti- Old 3 parts of agent 4010NA mixtures, 1.5 parts of magnesia, 10 parts of plasticizer DOP, 1.5 parts of silane coupler, light stabilizer 69111.5 Part, 2 parts of metallocene PE, 8 parts of Magnesium Hydroxide Inorganic Flame Retardant, 2 parts of molybdenum disulfide, 3 parts of ethylene bis stearamide, white carbon 18 parts, 2 parts of stabilizer Dythal.
Embodiment 4:
A kind of Current Transformer Secondary overvoltage protector protective case, is made up of the raw material of following parts by weight:Ethylene methacrylic 100 parts of base phenyl siloxane rubber, PDM5 parts of vulcanizing agent, 2.5 parts of vulcanization accelerator TMTD, 5 parts of zinc oxide, antiscorching agent N- cyclohexyl sulphur For 1 part of phthalimide, four【3- (3,5- di-tert-butyl-hydroxy phenyl) propionic acid】1.5 parts of pentaerythritol ester, adds ratio Example is 1.8:12 parts of antioxidant D and antioxidant 4010NA mixture, 1 part of magnesia, 14 parts of plasticizer DOP, silane coupler 0.5 part, 69113 parts of light stabilizer, 3 parts of metallocene PE, 12 parts of Magnesium Hydroxide Inorganic Flame Retardant, 3 parts of molybdenum disulfide, silicone 2 parts of powder, 3 parts of Tissuemat E, 20 parts of white carbon, 1.5 parts of stabilizer Dythal.
Beneficial effects of the present invention are:
1st, the protective case that the present invention is provided, rationally, the vulcanizing system design of use can reduce compression forever to raw material components compatibility Deformation long, shortens cure time, improves heat resistance;
2nd, the present invention uses methyl vinyl phenyl silicon rubber for main body so that protective case has good resistant to chemical media Corrosive nature, and raw material is cheap and easy to get, production cost is low, and product heat endurance is high, low toxicity.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations;Although with reference to the foregoing embodiments The present invention is described in detail, it will be understood by those within the art that:It still can be to foregoing each implementation Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic;And these modification or Replace, the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.

Claims (6)

1. a kind of Current Transformer Secondary overvoltage protector protective case, it is characterised in that be made up of the raw material of following parts by weight: 100 parts of rubber matrix, PDM1-5 parts of vulcanizing agent, 2-3 parts of vulcanization accelerator TMTD, 5-8 parts of zinc oxide, antiscorching agent N- cyclohexyl sulphur For 0.5-1 parts of phthalimide, 1-2 parts of antioxidant, 2-3 parts of age resistor, 1-2 parts of magnesia, plasticizer DOP 10-14 Part, 0.5-1.5 parts of silane coupler, 69111.5-3 parts of light stabilizer, 2-4 parts of metallocene PE, magnesium hydroxide is inorganic fire-retarded 8-13 parts of agent, 1-3 parts of molybdenum disulfide, 3-5 parts of lubricant, 18-23 parts of white carbon, stabilizer Dythal 1-2 Part.
2. Current Transformer Secondary overvoltage protector protective case as claimed in claim 1, it is characterised in that by following weight The raw material composition of part:100 parts of rubber matrix, PDM3 parts of vulcanizing agent, 2 parts of vulcanization accelerator TMTD, 6 parts of zinc oxide, antiscorching agent N- 0.8 part of cyclohexylthiophthalimide, 1 part of antioxidant, 3 parts of age resistor, 1 part of magnesia, plasticizer DOP 11.5 Part, 1 part of silane coupler, 69112 parts of light stabilizer, 3 parts of the poly- second of metallocene, 10 parts of Magnesium Hydroxide Inorganic Flame Retardant, curing 2 parts of molybdenum, 4 parts of lubricant, 21 parts of white carbon, 1 part of stabilizer Dythal.
3. Current Transformer Secondary overvoltage protector protective case as claimed in claim 1, it is characterised in that the rubber base Body is methyl vinyl phenyl silicon rubber.
4. Current Transformer Secondary overvoltage protector protective case as claimed in claim 1, it is characterised in that the age resistor It is 1.3-1.8 for additional proportion:1 antioxidant D and the mixture of antioxidant 4010NA.
5. Current Transformer Secondary overvoltage protector protective case as claimed in claim 1, it is characterised in that described anti-oxidant Agent is diaryl-p-phenylenediamine's mixture, four【3- (3,5- di-tert-butyl-hydroxy phenyl) propionic acid】Pentaerythritol ester, β, β '- Vulcanize the one of which of dipropionic acid distearate.
6. Current Transformer Secondary overvoltage protector protective case as claimed in claim 1, it is characterised in that the lubricant For the one of which in magnesium stearate, zinc stearate, ethylene bis stearamide, silicone powder, Tissuemat E or any two kinds of mixing Thing.
CN201710373914.6A 2017-05-24 2017-05-24 A kind of Current Transformer Secondary overvoltage protector protective case Pending CN107151448A (en)

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CN201710373914.6A CN107151448A (en) 2017-05-24 2017-05-24 A kind of Current Transformer Secondary overvoltage protector protective case

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CN201710373914.6A CN107151448A (en) 2017-05-24 2017-05-24 A kind of Current Transformer Secondary overvoltage protector protective case

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108129850A (en) * 2018-01-11 2018-06-08 东爵有机硅(南京)有限公司 A kind of high rebound high-strength silicone rubber and preparation method thereof
CN108384249A (en) * 2018-03-12 2018-08-10 合肥尚强电气科技有限公司 A kind of insulating materials and preparation method thereof of Current Transformer Secondary overvoltage protection device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102775691A (en) * 2012-08-10 2012-11-14 昆山乔锐金属制品有限公司 Formula of composite wire and cable sheath material
CN102952311A (en) * 2011-08-30 2013-03-06 苏州亨利通信材料有限公司 Preparation method of low-smoke non-halogen flame-retardant material for high-voltage cable sheath
CN103524908A (en) * 2013-10-25 2014-01-22 滁州品创生物科技有限公司 Preparation method of cable sheath material
CN103772832A (en) * 2014-01-17 2014-05-07 安徽中通电缆科技有限公司 Sheathing material for high-strength and aging-resistant power cable and preparation method of sheathing material

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102952311A (en) * 2011-08-30 2013-03-06 苏州亨利通信材料有限公司 Preparation method of low-smoke non-halogen flame-retardant material for high-voltage cable sheath
CN102775691A (en) * 2012-08-10 2012-11-14 昆山乔锐金属制品有限公司 Formula of composite wire and cable sheath material
CN103524908A (en) * 2013-10-25 2014-01-22 滁州品创生物科技有限公司 Preparation method of cable sheath material
CN103772832A (en) * 2014-01-17 2014-05-07 安徽中通电缆科技有限公司 Sheathing material for high-strength and aging-resistant power cable and preparation method of sheathing material

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
北京化工学院: "《合成橡胶工业知识》", 30 September 1972, 燃料化学工业出版社 *
武卫莉等: "《橡胶加工工艺学》", 30 June 2012, 哈尔滨工业大学出版社 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108129850A (en) * 2018-01-11 2018-06-08 东爵有机硅(南京)有限公司 A kind of high rebound high-strength silicone rubber and preparation method thereof
CN108384249A (en) * 2018-03-12 2018-08-10 合肥尚强电气科技有限公司 A kind of insulating materials and preparation method thereof of Current Transformer Secondary overvoltage protection device

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