CN105391027A - Transformer voltage protection device - Google Patents

Transformer voltage protection device Download PDF

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Publication number
CN105391027A
CN105391027A CN201510785261.3A CN201510785261A CN105391027A CN 105391027 A CN105391027 A CN 105391027A CN 201510785261 A CN201510785261 A CN 201510785261A CN 105391027 A CN105391027 A CN 105391027A
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China
Prior art keywords
lightning
transformer
discharge
detector
parts
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CN201510785261.3A
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Chinese (zh)
Inventor
彭伟成
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Individual
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Individual
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Priority to CN201510785261.3A priority Critical patent/CN105391027A/en
Publication of CN105391027A publication Critical patent/CN105391027A/en
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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/04Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L63/00Compositions of epoxy resins; Compositions of derivatives of epoxy resins
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/04Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
    • H02H9/045Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage adapted to a particular application and not provided for elsewhere
    • H02H9/047Free-wheeling circuits
    • 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
    • C08K2201/00Specific properties of additives
    • C08K2201/014Additives containing two or more different additives of the same subgroup in C08K

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

The invention discloses a transformer voltage protection device comprising a base plate, a lightning-proof transformer and a lightning-proof detector. The lightning-proof transformer is disposed to the upper left of the base plate. The lightning-proof transformer includes an over-current protection sleeve, a lightning rod, a conductive sheet and a discharge column. The lightning rod is disposed above the over-current protection sleeve and fixed to the over-current protection sleeve. The conductive sheet is connected with the over-current protection sleeve and the lightning-proof transformer. The discharge column is disposed at the right side of the lightning-proof transformer, and includes a discharge protection sleeve and a discharge end. The discharge end is disposed on the upper end of the discharge protection sleeve. A discharge conductor is arranged on the discharge end, and the discharge conductor is connected with the lightning-proof detector. The lightning-proof detector is disposed to the upper right of the base plate. The lightning-proof detector includes a detector and a current transformer. The transformer voltage protection device can help to improve the possibility of lightning avoidance, and can play a role in protecting current transmission.

Description

A kind of transformer voltage protective device
Technical field
The present invention is specifically related to a kind of transformer voltage protective device.
Background technology
Electric wire refers to the material for electric power, communication and associated transport purposes.Usually by few for core number, product diameter is little, the simple product of structure is called electric wire, not insulation be called bare wire, other be called cable.
In China, PVC cable material, at the main insulating layer as the agricultural buried wire of high-low pressure and industrial power cable, has successfully run the more than ten years, because PVC cable insulating material insulation resistance is on the low side, leakage current is too large, makes many places occur underground line operation troubles.
In addition, because existing cable is in transmission of electricity process, because the length of cable limits, drawing in long distance establishes in process, need repeatedly to carry out cable connection, but easily go wrong because existing cable joint has connection, junction easily breaks, and causes the situation that power-off is leaked electricity.
Summary of the invention
The technical problem to be solved in the present invention is to provide and is a kind ofly conducive to improving the probability avoiding being struck by lightning, the transformer voltage protective device that simultaneously can play protection to the defeated stream of electric current.
For solving the problem, the present invention adopts following technical scheme:
A kind of transformer voltage protective device, comprise base plate, lightning proof transformer and lightning-arrest detector, described lightning proof transformer is positioned at the upper left side of base plate, described lightning proof transformer comprises overcurrent protection cover, lightning rod, conducting strip and discharge column, described lightning rod is positioned at the top of overcurrent protection cover, and fix with overcurrent protection cover, described conducting strip connects overcurrent protection cover and lightning proof transformer, described discharge column is positioned at the right side of lightning proof transformer, described discharge column comprises discharge prevention cover and discharge end, described discharge end is positioned at the upper end of discharge prevention cover, described discharge end is provided with electric discharge conductor, described electric discharge conductor connects lightning-arrest detector, described lightning-arrest detector is positioned at the upper right side of base plate, described lightning-arrest detector comprises detector summation current transformer.
Further, two current protection covers are provided with above described lightning proof transformer 2.
Further, described lightning proof transformer 2 is connected with discharge column 7.
Further, Connection Block is provided with in the middle part of described discharge column 7.
Further, described lightning-arrest detector 3 is provided with two current protection covers.
Further, the current protection cover on the right side of described lightning-arrest detector 3 is 60 ° and is obliquely installed.
Further, described current protector 12 connects two overcurrent protection covers.
A kind of preparation method of protective sleeve; be made up of the material of following parts by weight; comprise feldspar 14-21 part, clay 19-26 part, titanium tetrachloride 8-12 part, barium chloride 8-12 part, oxalic acid 16-22 part, zircon sand 6-10 part, diatomite 5-10 part, propylene 4-6 part, polyphenylene sulfide 3-5 part, epoxy resin 6-8 part, aluminium hydroxide 2-4 part and thio-2 acid dibasic acid esters 2-4 part, comprise the following steps:
1) get feldspar 14-21 part and the mixing of clay 19-26 part, and add a large amount of water and make mud, then through precipitation, fish for thickness cohesive soil, for subsequent use;
2) after getting titanium tetrachloride 8-12 part and barium chloride 8-12 part mix and blend, temperature is increased to 90 DEG C, adds oxalic acid 16-22 part, by chemical reaction oxalic oxygen titanium precipitated barium in the material made, for subsequent use;
3) by step 3) obtained material carries out methods such as filtering, dry, obtained barium titanate finished product, for subsequent use;
4) by step 3) obtained barium titanate extrusion modling, calcine under the high temperature of 1200 DEG C, then by obtained 50 order powder of milling, for subsequent use;
5) get zircon sand 6-10 part after milling, obtain stone flour, then mix the stirring of diatomite 5-10 part, simultaneously by step 5) in obtained barium titanate powder mix and blend in the lump, for subsequent use;
6) extracting epoxy resin 6-8 part becomes liquid by high-temperature fusion, for subsequent use;
7) get propylene 4-6 part, polyphenylene sulfide 3-5 part, aluminium hydroxide 2-4 part and thio-2 acid dibasic acid esters 2-4 part and add step 6 to) in, mixing and stirring is for subsequent use;
8) by step 7) obtained material adds step 1 to) in cohesive soil in, and to stir with cohesive soil, for subsequent use;
9) by step 8) obtained material plasticity, obtained model, then puts into porcelain cellar for storing things, by more than 4000 DEG C high temperature, the shaping speed of quickening model.
The invention has the beneficial effects as follows: owing to being provided with base plate; can support fixing by thunder transformer and lightning-arrest detector; owing to being provided with protective sleeve; can insulate anticreep, owing to being provided with lightning rod, thunderbolt can be prevented; owing to being provided with electric post; be conducive to passing to electric current, owing to being provided with lightning-arrest detector, the electric current being carried out the number of degrees and the transmission of electricity of discharging by discharge column can be detected.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of a kind of transformer voltage protective device of the present invention.
Embodiment
Embodiment one:
Consult shown in Fig. 1, a kind of transformer voltage protective device, comprise base plate 1, lightning proof transformer 2 and lightning-arrest detector 3, described lightning proof transformer 2 and lightning-arrest detector 3 are all positioned at the top of base plate 1, and fix with base plate 1, described lightning proof transformer 2 is positioned at the upper left side of base plate 1, described lightning proof transformer 2 comprises overcurrent protection cover 4, lightning rod 5, conducting strip 6 and discharge column 7, described lightning rod 5 is positioned at the top of overcurrent protection cover 4, and overlap 4 with overcurrent protection and fix, described conducting strip 6 connects overcurrent protection cover 4 and lightning proof transformer 2, described discharge column 7 is positioned at the right side of lightning proof transformer 2, described discharge column 7 comprises discharge prevention cover 8 and discharge end 9, described discharge end 9 is positioned at the upper end of discharge prevention cover 8, described discharge end 9 is provided with electric discharge conductor 10, described electric discharge conductor 10 connects lightning-arrest detector 3, described lightning-arrest detector 3 is positioned at the upper right side of base plate 1, described lightning-arrest detector 3 comprises detector 11 summation current transformer 12.
Be provided with two current protection covers above described lightning proof transformer 2, be conducive to protective current, avoid thunder and lightning to puncture.
Described lightning proof transformer 2 is connected with discharge column 7, is conducive to the voltage of controlled discharge.
Be provided with Connection Block in the middle part of described discharge column 7, be conducive to firm discharge column.
Described lightning-arrest detector 3 is provided with two current protection covers, is conducive to shunting and detects.
Current protection cover on the right side of described lightning-arrest detector 3 is 60 ° and is obliquely installed, and is conducive to separating two current protection covers, avoids producing electrostatic and influences each other.
Described current protector 12 connects two overcurrent protection covers.
A kind of preparation method of protective sleeve; be made up of the material of following parts by weight; comprise feldspar 21 parts, clay 19 parts, titanium tetrachloride 8 parts, barium chloride 8 parts, oxalic acid 16 parts, zircon sand 6 parts, 5 parts, diatomite, propylene 4 parts, polyphenylene sulfide 3 parts, epoxy resin 6 parts, 2 parts, aluminium hydroxide and thio-2 acid dibasic acid esters 2 parts, comprise the following steps:
1) getting feldspar 21 parts and clay 19 parts mixing, and add a large amount of water and make mud, then through precipitating, fishing for thickness cohesive soil, for subsequent use;
2) after getting titanium tetrachloride 8 parts and barium chloride 8 parts of mix and blends, temperature is increased to 90 DEG C, adds oxalic acid 16-22 part, by chemical reaction oxalic oxygen titanium precipitated barium in the material made, for subsequent use;
3) by step 3) obtained material carries out methods such as filtering, dry, obtained barium titanate finished product, for subsequent use;
4) by step 3) obtained barium titanate extrusion modling, calcine under the high temperature of 1200 DEG C, then by obtained 50 order powder of milling, for subsequent use;
5) get zircon sand 6 parts after milling, obtain stone flour, then mix the stirring of diatomite 5-10 part, simultaneously by step 5) in obtained barium titanate powder mix and blend in the lump, for subsequent use;
6) extracting epoxy resin 6 parts becomes liquid by high-temperature fusion, for subsequent use;
7) get propylene 4 parts, polyphenylene sulfide 3 parts, 2 parts, aluminium hydroxide and thio-2 acid dibasic acid esters 2 parts and add step 6 to) in, mixing and stirring is for subsequent use;
8) by step 7) obtained material adds step 1 to) in cohesive soil in, and to stir with cohesive soil, for subsequent use;
9) by step 8) obtained material plasticity, obtained model, then puts into porcelain cellar for storing things, by more than 4000 DEG C high temperature, the shaping speed of quickening model.
Embodiment two:
Consult shown in Fig. 1, a kind of transformer voltage protective device, comprise base plate 1, lightning proof transformer 2 and lightning-arrest detector 3, described lightning proof transformer 2 and lightning-arrest detector 3 are all positioned at the top of base plate 1, and fix with base plate 1, described lightning proof transformer 2 is positioned at the upper left side of base plate 1, described lightning proof transformer 2 comprises overcurrent protection cover 4, lightning rod 5, conducting strip 6 and discharge column 7, described lightning rod 5 is positioned at the top of overcurrent protection cover 4, and overlap 4 with overcurrent protection and fix, described conducting strip 6 connects overcurrent protection cover 4 and lightning proof transformer 2, described discharge column 7 is positioned at the right side of lightning proof transformer 2, described discharge column 7 comprises discharge prevention cover 8 and discharge end 9, described discharge end 9 is positioned at the upper end of discharge prevention cover 8, described discharge end 9 is provided with electric discharge conductor 10, described electric discharge conductor 10 connects lightning-arrest detector 3, described lightning-arrest detector 3 is positioned at the upper right side of base plate 1, described lightning-arrest detector 3 comprises detector 11 summation current transformer 12.
Be provided with two current protection covers above described lightning proof transformer 2, be conducive to protective current, avoid thunder and lightning to puncture.
Described lightning proof transformer 2 is connected with discharge column 7, is conducive to the voltage of controlled discharge.
Be provided with Connection Block in the middle part of described discharge column 7, be conducive to firm discharge column.
Described lightning-arrest detector 3 is provided with two current protection covers, is conducive to shunting and detects.
Current protection cover on the right side of described lightning-arrest detector 3 is 60 ° and is obliquely installed, and is conducive to separating two current protection covers, avoids producing electrostatic and influences each other.
Described current protector 12 connects two overcurrent protection covers.
A kind of preparation method of protective sleeve; be made up of the material of following parts by weight; comprise feldspar 14 parts, clay 26 parts, titanium tetrachloride 12 parts, barium chloride 12 parts, oxalic acid 22 parts, zircon sand 10 parts, 10 parts, diatomite, propylene 6 parts, polyphenylene sulfide 5 parts, epoxy resin 8 parts, 4 parts, aluminium hydroxide and thio-2 acid dibasic acid esters 4 parts, comprise the following steps:
1) get feldspar 14-21 part and the mixing of clay 19-26 part, and add a large amount of water and make mud, then through precipitation, fish for thickness cohesive soil, for subsequent use;
2) after getting titanium tetrachloride 8-12 part and barium chloride 8-12 part mix and blend, temperature is increased to 90 DEG C, adds oxalic acid 16-22 part, by chemical reaction oxalic oxygen titanium precipitated barium in the material made, for subsequent use;
3) by step 3) obtained material carries out methods such as filtering, dry, obtained barium titanate finished product, for subsequent use;
4) by step 3) obtained barium titanate extrusion modling, calcine under the high temperature of 1200 DEG C, then by obtained 50 order powder of milling, for subsequent use;
5) get zircon sand 6-10 part after milling, obtain stone flour, then mix the stirring of diatomite 5-10 part, simultaneously by step 5) in obtained barium titanate powder mix and blend in the lump, for subsequent use;
6) extracting epoxy resin 6-8 part becomes liquid by high-temperature fusion, for subsequent use;
7) get propylene 4-6 part, polyphenylene sulfide 3-5 part, aluminium hydroxide 2-4 part and thio-2 acid dibasic acid esters 2-4 part and add step 6 to) in, mixing and stirring is for subsequent use;
8) by step 7) obtained material adds step 1 to) in cohesive soil in, and to stir with cohesive soil, for subsequent use;
9) by step 8) obtained material plasticity, obtained model, then puts into porcelain cellar for storing things, by more than 4000 DEG C high temperature, the shaping speed of quickening model.
Embodiment three:
Consult shown in Fig. 1, a kind of transformer voltage protective device, comprise base plate 1, lightning proof transformer 2 and lightning-arrest detector 3, described lightning proof transformer 2 and lightning-arrest detector 3 are all positioned at the top of base plate 1, and fix with base plate 1, described lightning proof transformer 2 is positioned at the upper left side of base plate 1, described lightning proof transformer 2 comprises overcurrent protection cover 4, lightning rod 5, conducting strip 6 and discharge column 7, described lightning rod 5 is positioned at the top of overcurrent protection cover 4, and overlap 4 with overcurrent protection and fix, described conducting strip 6 connects overcurrent protection cover 4 and lightning proof transformer 2, described discharge column 7 is positioned at the right side of lightning proof transformer 2, described discharge column 7 comprises discharge prevention cover 8 and discharge end 9, described discharge end 9 is positioned at the upper end of discharge prevention cover 8, described discharge end 9 is provided with electric discharge conductor 10, described electric discharge conductor 10 connects lightning-arrest detector 3, described lightning-arrest detector 3 is positioned at the upper right side of base plate 1, described lightning-arrest detector 3 comprises detector 11 summation current transformer 12.
Be provided with two current protection covers above described lightning proof transformer 2, be conducive to protective current, avoid thunder and lightning to puncture.
Described lightning proof transformer 2 is connected with discharge column 7, is conducive to the voltage of controlled discharge.
Be provided with Connection Block in the middle part of described discharge column 7, be conducive to firm discharge column.
Described lightning-arrest detector 3 is provided with two current protection covers, is conducive to shunting and detects.
Current protection cover on the right side of described lightning-arrest detector 3 is 60 ° and is obliquely installed, and is conducive to separating two current protection covers, avoids producing electrostatic and influences each other.
Described current protector 12 connects two overcurrent protection covers.
A kind of preparation method of protective sleeve; be made up of the material of following parts by weight; comprise feldspar 18 parts, clay 22 parts, titanium tetrachloride 10 parts, barium chloride 10 parts, oxalic acid 19 parts, zircon sand 8 parts, 7 parts, diatomite, propylene 5 parts, polyphenylene sulfide 4 parts, epoxy resin 7 parts, 3 parts, aluminium hydroxide and thio-2 acid dibasic acid esters 3 parts, comprise the following steps:
1) getting feldspar 18 parts and clay 22 parts mixing, and add a large amount of water and make mud, then through precipitating, fishing for thickness cohesive soil, for subsequent use;
2) after getting titanium tetrachloride 10 parts and barium chloride 10 parts of mix and blends, temperature is increased to 90 DEG C, adds oxalic acid 19 parts, by chemical reaction oxalic oxygen titanium precipitated barium in the material made, for subsequent use;
3) by step 3) obtained material carries out methods such as filtering, dry, obtained barium titanate finished product, for subsequent use;
4) by step 3) obtained barium titanate extrusion modling, calcine under the high temperature of 1200 DEG C, then by obtained 50 order powder of milling, for subsequent use;
5) get zircon sand 8 parts after milling, obtain stone flour, then mix 7 parts, diatomite stirrings, simultaneously by step 5) in obtain barium titanate powder mix and blend in the lump, for subsequent use;
6) extracting epoxy resin 7 parts becomes liquid by high-temperature fusion, for subsequent use;
7) get propylene 5 parts, polyphenylene sulfide 4 parts, 6 parts, aluminium hydroxide and thio-2 acid dibasic acid esters 3 parts and add step 6 to) in, mixing and stirring is for subsequent use;
8) by step 7) obtained material adds step 1 to) in cohesive soil in, and to stir with cohesive soil, for subsequent use;
9) by step 8) obtained material plasticity, obtained model, then puts into porcelain cellar for storing things, by more than 4000 DEG C high temperature, the shaping speed of quickening model.
Experimental example:
Choose common protective sleeve with special protective sleeve compared with protective sleeve of the present invention, and according to fusing point, anticorrosive oxidation, power consumption effect and hardness foundation as a comparison, analyze the situation of three groups of protective sleeves, and draw best protective sleeve.
With common fixed mount be control group one, special fixed mount for control group two and fixed mount of the present invention are for control group three, concrete data are as shown in the table:
Contrast three groups of materials, obtain protective sleeve effect of the present invention best, have compared with two groups of control groups that high, the anticorrosive oxidation effectiveness of fusing point is good, the electric effect of low-loss and the large advantage of hardness.
The invention has the beneficial effects as follows: owing to being provided with base plate; can support fixing by thunder transformer and lightning-arrest detector; owing to being provided with protective sleeve; can insulate anticreep, owing to being provided with lightning rod, thunderbolt can be prevented; owing to being provided with electric post; be conducive to passing to electric current, owing to being provided with lightning-arrest detector, the electric current being carried out the number of degrees and the transmission of electricity of discharging by discharge column can be detected.
The above, be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and any change of expecting without creative work or replacement, all should be encompassed in scope and be as the criterion.

Claims (7)

1. a transformer voltage protective device, is characterized in that: comprise base plate, lightning proof transformer and lightning-arrest detector, described lightning proof transformer is positioned at the upper left side of base plate, and described lightning proof transformer comprises overcurrent protection cover, lightning rod, conducting strip and discharge column, described lightning rod is positioned at the top of overcurrent protection cover, and fix with overcurrent protection cover, described conducting strip connects overcurrent protection cover and lightning proof transformer, described discharge column is positioned at the right side of lightning proof transformer, described discharge column comprises discharge prevention cover and discharge end, described discharge end is positioned at the upper end of discharge prevention cover, described discharge end is provided with electric discharge conductor, described electric discharge conductor connects lightning-arrest detector, described lightning-arrest detector is positioned at the upper right side of base plate, described lightning-arrest detector comprises detector summation current transformer, described protective sleeve is made up of the material of following parts by weight, comprises feldspar 14-21 part, clay 19-26 part, titanium tetrachloride 8-12 part, barium chloride 8-12 part, oxalic acid 16-22 part, zircon sand 6-10 part, diatomite 5-10 part, propylene 4-6 part, polyphenylene sulfide 3-5 part, epoxy resin 6-8 part, aluminium hydroxide 2-4 part and thio-2 acid dibasic acid esters 2-4 part.
2. transformer voltage protective device as claimed in claim 2, is characterized in that: be provided with two current protection covers above described lightning proof transformer.
3. transformer voltage protective device as claimed in claim 3, is characterized in that: described lightning proof transformer is connected with discharge column.
4. transformer voltage protective device as claimed in claim 4, is characterized in that: be provided with Connection Block in the middle part of described discharge column.
5. transformer voltage protective device as claimed in claim 5, is characterized in that: described lightning-arrest detector is provided with two current protection covers.
6. transformer voltage protective device as claimed in claim 6, is characterized in that: the current protection cover on the right side of described lightning-arrest detector is 60 ° and is obliquely installed.
7. transformer voltage protective device as claimed in claim 7, is characterized in that: described current protector connects two overcurrent protection covers.
CN201510785261.3A 2015-11-14 2015-11-14 Transformer voltage protection device Pending CN105391027A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510785261.3A CN105391027A (en) 2015-11-14 2015-11-14 Transformer voltage protection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510785261.3A CN105391027A (en) 2015-11-14 2015-11-14 Transformer voltage protection device

Publications (1)

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CN105391027A true CN105391027A (en) 2016-03-09

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2236164Y (en) * 1995-09-22 1996-09-25 李学敏 Thunder-proof transformer
CN202167303U (en) * 2011-08-22 2012-03-14 刘敏 Lightning-protection overvoltage protector
CN202564935U (en) * 2012-05-04 2012-11-28 成都长河电器制造有限公司 Lightning arrester
CN203983956U (en) * 2014-07-28 2014-12-03 周煦阳 A kind of transformer neutral point isolating switch device
CN104362513A (en) * 2014-11-25 2015-02-18 辽宁华隆电力科技有限公司 Outer-series-gap arrester with discharging adjustable
CN104641428A (en) * 2012-09-25 2015-05-20 西门子公司 Surge arrester

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2236164Y (en) * 1995-09-22 1996-09-25 李学敏 Thunder-proof transformer
CN202167303U (en) * 2011-08-22 2012-03-14 刘敏 Lightning-protection overvoltage protector
CN202564935U (en) * 2012-05-04 2012-11-28 成都长河电器制造有限公司 Lightning arrester
CN104641428A (en) * 2012-09-25 2015-05-20 西门子公司 Surge arrester
CN203983956U (en) * 2014-07-28 2014-12-03 周煦阳 A kind of transformer neutral point isolating switch device
CN104362513A (en) * 2014-11-25 2015-02-18 辽宁华隆电力科技有限公司 Outer-series-gap arrester with discharging adjustable

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
家田正之: "《电工技术手册》", 31 August 1984, 机械工业出版社 *
陈晓勇等: "锆钛酸钡(BZT)陶瓷制备及其介电性能的研究进展", 《陶瓷学报》 *

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Application publication date: 20160309