CN201638666U - 110kV single-phase electromagnetic type voltage transformer without partial discharge - Google Patents

110kV single-phase electromagnetic type voltage transformer without partial discharge Download PDF

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Publication number
CN201638666U
CN201638666U CN2009202865068U CN200920286506U CN201638666U CN 201638666 U CN201638666 U CN 201638666U CN 2009202865068 U CN2009202865068 U CN 2009202865068U CN 200920286506 U CN200920286506 U CN 200920286506U CN 201638666 U CN201638666 U CN 201638666U
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CN
China
Prior art keywords
winding
iron core
voltage transformer
type voltage
phase electricity
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Expired - Fee Related
Application number
CN2009202865068U
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Chinese (zh)
Inventor
翟辉
刘安彦
尤屹
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ZHUOGAO ELECTRIC CO Ltd
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ZHUOGAO ELECTRIC CO Ltd
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Priority to CN2009202865068U priority Critical patent/CN201638666U/en
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Publication of CN201638666U publication Critical patent/CN201638666U/en
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Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a 110kV single-phase electromagnetic type voltage transformer without partial discharge, which comprises a shell, a winding, a layer insulator, a winding screen, an iron core and a group of clamping elements, wherein the winding, the layer insulator, the winding screen, the iron core and the group of clamping elements are arranged in the shell; the iron core is rectangular; the winding is sleeved on a core column of the rectangular iron core; the layer insulator is arranged among layers of the winding; the winding screen is sleeved on the winding; and the group of clamping elements are respectively arranged at both ends of the iron core and used for fixing and fastening the winding and the iron core. The trapezoidal winding with layer-by-layer reduction and equal capacitance design effectively improves the insulating utilization ratio, reduces the use of insulating materials and greatly shortens the volume; the iron core with a profiling structure reduces the dosage of raw materials, such as non-ferrous metal, insulating medium, and the like when reducing the volume of a product, thus the product has smaller size, lighter weight and larger capacity; and the volume and the weight of the voltage transformer are 20-30 percent smaller than those of a like product, and the utility model improves the capacity, reduces volume, weight and the manufacture cost, saves raw materials and meets the requirements on a small GIS (Gas-Insulator Switchgear).

Description

A kind of 110kV does not have office puts single-phase electricity magnetic-type voltage transformer
Technical field
The utility model relates to a kind of voltage transformer, and being specifically related to a kind of 110kV does not have office and put single-phase electricity magnetic-type voltage transformer.
Background technology
The development of advancing by leaps and bounds along with electric utility, to the fail safe of power transmission and transforming equipment, reliability requirement also in continuous raising, especially concerning High-Voltage Electrical Appliances, the quality of insulation property then is the key of fail safe, reliability, and a leading indicator that influences the High-Voltage Electrical Appliances insulation property is exactly a partial discharge quantity; Discharge generation is arranged in the insulation, illustrate that at first field intensity is inhomogeneous, the product defectiveness; In addition, the long term of partial discharge can produce tangible destruction to insulating material.
Standard GB 1207-2006 " electromagnetic potential transformer " regulation; the partial discharge quantity of voltage transformer under highest voltage for equipment should be less than 10pC; though present stage, national standard had clear and definite regulation, the accident of insulation breakdown also takes place in such product through regular meeting in actual motion.So how to improve the insulation margin of voltage transformer, reducing partial discharge quantity is an important topic of instrument transformer industry.
Different along with the raising of electric pressure and power transmission and transformation metering, protected mode; in sulphur hexafluoride combined electric GIS, often need supporting a kind of jumbo electromagnetic potential transformer; some jumbo these type instrument transformers are also arranged in the market; but volume greatly, also very heavy; transportation is installed all inconvenient, and also is not suitable for being installed in the GIS combined electrical apparatus of miniaturization very much.
In view of the above problems, the utility model discloses a kind of 110kV does not have office and puts single-phase electricity magnetic-type voltage transformer.It has technical characterictic as mentioned below, to solve existing problem.
The utility model content
The purpose of this utility model provide a kind of 110kV do not have the office put single-phase electricity magnetic-type voltage transformer, it can increase the capacity of instrument transformer, and accomplishes that volume and weight is all small and light than like product, is applicable to the supporting use of sulphur hexafluoride combined electric GIS of miniaturization.
A kind of 110kV of the utility model does not have the purpose that office puts single-phase electricity magnetic-type voltage transformer and is achieved through the following technical solutions: a kind of 110kV does not have office puts single-phase electricity magnetic-type voltage transformer, comprises winding, layer insulation, winding shielding, iron core and one group of folder.
Described iron core is hollow.
Described winding is nested with on a stem stem of the iron core of hollow.
Described layer insulation is arranged on the interlayer of winding.
Described winding shielding is nested with on winding.
Described one group of folder is separately positioned on the two ends of iron core, and winding and iron core are fixed to clamp.
Above-mentioned a kind of 110kV does not have office puts single-phase electricity magnetic-type voltage transformer, and wherein, described winding is to wait the electric capacity winding.
Above-mentioned a kind of 110kV does not have office puts single-phase electricity magnetic-type voltage transformer, and wherein, described winding comprises winding and secondary winding, and a described winding is nested with on the secondary winding, and the secondary winding is nested with on the iron core of hollow.
Above-mentioned a kind of 110kV does not have office puts single-phase electricity magnetic-type voltage transformer, and wherein: a described winding is trapezoidal, from top to bottom successively successively decreases, and described winding shielding is nested with on a described winding.
Above-mentioned a kind of 110kV does not have office puts single-phase electricity magnetic-type voltage transformer, and wherein, the width of described winding shielding is identical with the upper base width of trapezoidal winding.
Above-mentioned a kind of 110kV does not have office puts single-phase electricity magnetic-type voltage transformer, and wherein: described iron core shielding and folder are one.
Above-mentioned a kind of 110kV does not have office puts single-phase electricity magnetic-type voltage transformer, and wherein: described iron core is multistage.
Above-mentioned a kind of 110kV does not have office puts single-phase electricity magnetic-type voltage transformer, and wherein, the lateral column of described iron core is rounded.
A kind of 110kV of the utility model does not have office puts single-phase electricity magnetic-type voltage transformer owing to adopted such scheme, makes it compared with prior art, has following advantage and good effect:
1, a kind of 110kV of the utility model do not have office put single-phase electricity magnetic-type voltage transformer since adopt successively successively decrease, etc. the trapezoidal winding of capacitor design, effectively raise the insulation utilance, reduced the use of insulating material, dwindled the volume of winding greatly.
2, a kind of 110kV of the utility model does not have office and puts single-phase electricity magnetic-type voltage transformer owing to adopted the iron core of imitated structure, also reduced raw-material consumptions such as non-ferrous metal, dielectric when reducing small product size, small product size is littler, weight is lighter thereby make.
3, a kind of 110kV of the utility model does not have office to put single-phase electricity magnetic-type voltage transformer capacity bigger, volume is less, weight is lighter, its volume and weight are all than the little 20%-30% of like product, both improved capacity, also reduced volume and weight, save raw material, reduced manufacturing cost, satisfied the needs of miniaturization GIS combined electrical apparatus.
Below; to be described further by specific embodiment; yet embodiment only is giving an example of the optional execution mode of the utility model, and its disclosed feature only is used for explanation and sets forth the technical solution of the utility model, and is not used in qualification protection range of the present utility model.
Description of drawings
In order better to understand the utility model, the accompanying drawing for your guidance that can quote with reference to this specification, in the accompanying drawing:
Fig. 1 is that a kind of 110kV of the utility model does not have the cutaway view that the vertical view of single-phase electricity magnetic-type voltage transformer is put in office.
Fig. 2 is that a kind of 110kV of the utility model does not have office and puts the structural representation of the Application Example of single-phase electricity magnetic-type voltage transformer.
Embodiment
According to claim of the present utility model and the disclosed content of utility model content, the technical solution of the utility model is specific as follows described.
See also shown in the accompanying drawing 1, a kind of 110kV of the utility model does not have office to be put single-phase electricity magnetic-type voltage transformer and comprises winding 1, layer insulation 2, winding shielding 3, iron core 4 and one group of folder 5; Iron core 4 is hollow, winding 1 is nested with on a stem stem of the iron core 4 of hollow, and layer insulation 2 is arranged on the interlayer of winding 1, and the width of winding shielding 3 is identical with the upper base width of trapezoidal winding 1, winding shielding 3 is nested with on winding 1, one group of folder 5 is separately positioned on the two ends of iron core 4, and iron core 4 and winding 1 are fixed to clamp, and winding 1 is trapezoidal, to reduce the use of insulating material, successively successively decrease from the bottom to top, capacitor design such as winding 1 employing, iron core 4 is rounded.
Application Example:
See also shown in the accompanying drawing 2, a kind of 110kV of the utility model is not had office to be put single-phase electricity magnetic-type voltage transformer and is arranged in the housing 6, housing 6 is cylindrical structures, the lateral column outer of iron core 4 and the cross section of housing 6 are concentric circless, be full of sulfur hexafluoride gas in the housing 6, the gauge pressure scope of sulfur hexafluoride gas in housing 1 is 0.4-0.5Mp, and folder 5 clamps winding 1 and iron core 4 and be fixed on the floor of housing 6.
Also comprise electrode 61 and the disc insulator 62 that is connected with electrode 61 1 ends, electrode 61 is a high-field electrode, disc insulator 62 is arranged on the upper end open place of housing 6, the other end of electrode 61 is connected with winding shielding 3, winding 1 is fixed in the housing 6 by electrode 61 and disc insulator 62, also comprise a terminal box 63, terminal box 63 is arranged on a side of housing 6, and be tightly connected with housing 6, the outlet terminal 11 of winding 1 is arranged in the terminal box 63, also comprise an electrode screening 64, fixedly connected with disc insulator 62 in the upper end of electrode screening 64, electrode screening 64 cover caps are on electrode 61, also comprise a burst disk 65 and a pair of leg 66, burst disk 65 is arranged on the bottom center of housing 6, guarantees the safety of equipment, a pair of leg 66 is separately positioned on the two ends, the left and right sides of the bottom of housing 6, and fixedlys connected with the bottom of housing 6 by screw and nut.
Side at housing 6 is provided with a charge valve 67, this charge valve 67 is tightly connected with housing 6, and the dielectric sulfur hexafluoride gas charges in the whole housing 6 by charge valve 67, and sulfur hexafluoride gas is the very high a kind of gases of insulation property, in the present embodiment, gauge pressure is preferably 0.5Mp.
A kind of 110kV of the utility model does not have the operation principle that office puts single-phase electricity magnetic-type voltage transformer; principle and dielectric by electromagnetic conversion; the high voltage of power transmission and transformation line is converted to low-voltage; be that winding 1 is connected on the combined electrical apparatus by electrode 61, disc insulator 62 and is connected with the high pressure of electric power system; like this; high voltage becomes low-voltage output by the electromagnetic conversion of winding 1 and iron core 4, and power supply can be measured and used for relay protection.Electrode screening 64 is evenly to design for the electric field that makes high-field electrode 61 and winding 1.
In sum, a kind of 110kV of the utility model do not have office put single-phase electricity magnetic-type voltage transformer since adopt successively successively decrease, etc. the trapezoidal winding of capacitor design, effectively raise the insulation utilance, reduced the use of insulating material, dwindled the volume of winding greatly; The utility model has also reduced raw-material consumptions such as non-ferrous metal, dielectric owing to adopted the iron core of imitated structure when reducing small product size, small product size is littler, weight is lighter thereby make; The utility model capacity is bigger, and volume is less, weight is lighter, and its volume and weight are all than the little 20%-30% of like product, both improve capacity, also reduced volume and weight, saved raw material, reduce manufacturing cost, satisfied the needs of miniaturization GIS combined electrical apparatus.
Foregoing is that a kind of 110kV of the utility model does not have the exemplifying of specific embodiment that single-phase electricity magnetic-type voltage transformer is put in office, for the wherein not equipment of detailed description and structure, should be understood to take existing common apparatus in this area and universal method to be implemented.

Claims (8)

1. a 110kV does not have office and puts single-phase electricity magnetic-type voltage transformer, it is characterized in that: comprise winding, layer insulation, winding shielding, iron core and one group of folder in housing and the housing;
Described iron core is hollow;
Described winding is nested with on a stem stem of the iron core of hollow;
Described layer insulation is arranged on the interlayer of winding;
Described winding shielding is nested with on winding;
Described one group of folder is separately positioned on the two ends of iron core, and winding and iron core are fixed to clamp.
2. a kind of 110kV according to claim 1 does not have office puts single-phase electricity magnetic-type voltage transformer, it is characterized in that: described winding is to wait the electric capacity winding.
3. a kind of 110kV according to claim 1 does not have office puts single-phase electricity magnetic-type voltage transformer, it is characterized in that: described winding comprises winding and secondary winding, a described winding is nested with on the secondary winding, and the secondary winding is nested with on the iron core of hollow.
4. a kind of 110kV according to claim 3 does not have office puts single-phase electricity magnetic-type voltage transformer, and it is characterized in that: a described winding is trapezoidal, from top to bottom successively successively decreases, and described winding shielding is nested with on a described winding.
5. a kind of 110kV according to claim 1 does not have office puts single-phase electricity magnetic-type voltage transformer, it is characterized in that: the width of described winding shielding is identical with the upper base width of trapezoidal winding.
6. a kind of 110kV according to claim 1 does not have office puts single-phase electricity magnetic-type voltage transformer, it is characterized in that: described iron core shielding and folder are one.
7. a kind of 110kV according to claim 1 does not have office puts single-phase electricity magnetic-type voltage transformer, and it is characterized in that: described iron core is multistage.
8. a kind of 110kV according to claim 1 does not have office puts single-phase electricity magnetic-type voltage transformer, and it is characterized in that: the lateral column of described iron core is rounded.
CN2009202865068U 2009-12-28 2009-12-28 110kV single-phase electromagnetic type voltage transformer without partial discharge Expired - Fee Related CN201638666U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN2009202865068U CN201638666U (en) 2009-12-28 2009-12-28 110kV single-phase electromagnetic type voltage transformer without partial discharge

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102479607A (en) * 2010-11-27 2012-05-30 江苏思源赫兹互感器有限公司 Dividing type electronic voltage transformer of single-phase capacitor
CN102479610A (en) * 2010-11-26 2012-05-30 江苏思源赫兹互感器有限公司 Combined electronic mutual inductor
CN104240927A (en) * 2014-09-18 2014-12-24 江苏科兴电器有限公司 Electromagnetic voltage transformer
CN108987069A (en) * 2018-07-30 2018-12-11 特变电工康嘉(沈阳)互感器有限责任公司 A kind of electromagnetic potential transformer
CN109065343A (en) * 2018-07-10 2018-12-21 中国电力科学研究院有限公司 A kind of high-pressure double-stage voltage transformer

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102479610A (en) * 2010-11-26 2012-05-30 江苏思源赫兹互感器有限公司 Combined electronic mutual inductor
CN102479607A (en) * 2010-11-27 2012-05-30 江苏思源赫兹互感器有限公司 Dividing type electronic voltage transformer of single-phase capacitor
CN104240927A (en) * 2014-09-18 2014-12-24 江苏科兴电器有限公司 Electromagnetic voltage transformer
CN109065343A (en) * 2018-07-10 2018-12-21 中国电力科学研究院有限公司 A kind of high-pressure double-stage voltage transformer
CN108987069A (en) * 2018-07-30 2018-12-11 特变电工康嘉(沈阳)互感器有限责任公司 A kind of electromagnetic potential transformer
CN108987069B (en) * 2018-07-30 2020-12-04 特变电工康嘉(沈阳)互感器有限责任公司 Electromagnetic voltage transformer

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20101117

Termination date: 20111228