CN106205959A - A kind of semiclosed dry type mutual inductor - Google Patents

A kind of semiclosed dry type mutual inductor Download PDF

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Publication number
CN106205959A
CN106205959A CN201610716406.9A CN201610716406A CN106205959A CN 106205959 A CN106205959 A CN 106205959A CN 201610716406 A CN201610716406 A CN 201610716406A CN 106205959 A CN106205959 A CN 106205959A
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CN
China
Prior art keywords
transformer
building body
waters
semiclosed
binding post
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
CN201610716406.9A
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Chinese (zh)
Inventor
朱小涛
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.)
Urumqi Jiupin Sesame Information Technology Co Ltd
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朱小涛
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Priority to CN201610716406.9A priority Critical patent/CN106205959A/en
Publication of CN106205959A publication Critical patent/CN106205959A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/02Casings
    • H01F27/022Encapsulation
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/08Cooling; Ventilating
    • H01F27/22Cooling by heat conduction through solid or powdered fillings
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/24Magnetic cores
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/2823Wires
    • H01F27/2828Construction of conductive connections, of leads
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/29Terminals; Tapping arrangements for signal inductances
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/30Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • H01F27/306Fastening or mounting coils or windings on core, casing or other support
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/32Insulating of coils, windings, or parts thereof
    • H01F27/324Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/40Structural association with built-in electric component, e.g. fuse
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20Instruments transformers
    • H01F38/22Instruments transformers for single phase ac
    • H01F38/24Voltage transformers
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20Instruments transformers
    • H01F38/22Instruments transformers for single phase ac
    • H01F38/24Voltage transformers
    • H01F38/26Constructions

Abstract

nullThe invention discloses a kind of semiclosed dry type mutual inductor,Building body is watered including transformer,Described transformer waters the left and right sides, bottom of building body and is all fixed with installation panel by installation screw,Described transformer waters the outer wall of building body and is socketed with external iron core,Described external iron core includes iron-core coil,Top and the bottom of described iron-core coil are provided with backplate,And connected by fixing screw at the corner of two groups of backplates,Described transformer waters the left and right sides, top of building body and is all plugged with binding post,The outer wall of described binding post is provided with insulator,The top of described binding post is provided with bus line bank,The top of described installation panel is provided with rosette,And the top of rosette is plugged with low-voltage lead,This semiclosed dry type mutual inductor,Transformer body uses cast integral structure,Full-closed structure,Have non-maintaining、The feature of full working scope,In capacitive under loading condition,Iron core is unsaturated,Effectively prevent the generation of resonant vibration in the line,Run safety.

Description

A kind of semiclosed dry type mutual inductor
Technical field
The present invention relates to transformer technical field, a kind of semiclosed dry type mutual inductor.
Background technology
At present, along with improving constantly of China's rapid development of economy and people's living standard, people's dependence to electric power Degree is increasing, and transformer, as a key equipment in power system, the quality of transformer quality, will directly affect electricity The reliability service of Force system, but, the shelf depreciation problem difficult problem that always puzzlement dry-type voltage inductor produces.Locally Electric discharge refers to the electric discharge that Electric Power Equipment Insulation medium occurs in subrange under enough electric field actions, only causes between conductor Insulation local short circuit and be formed without conductive channel.The energy of this electric discharge is the least, so its existence in short-term has no effect on Dielectric strength to electrical equipment.But if insulation of electrical installation constantly occurs shelf depreciation under working voltage, these are faint Electric discharge makes the dielectric properties of insulation gradually degrade and make local defect to expand by building up effect, finally results in whole insulation and hits Wear.But, China is permission Apparent discharge magnitude≤20pC to the measurement of partial discharge standard of semiclosed casting type voltage mutual inductor. But existing semiclosed casting type voltage mutual inductor due to material, manufacture mounting process, suffer the reason such as bad condition can shape Become insulation defect, cause this voltage transformer partial discharge quantity 20pC, thus this voltage transformer exists that security performance is low, make , the defect of unstable working condition short with the life-span.
Summary of the invention
It is an object of the invention to provide a kind of semiclosed dry type mutual inductor, with solve in above-mentioned background technology propose ask Topic.
For achieving the above object, the present invention provides following technical scheme: a kind of semiclosed dry type mutual inductor, including transformer Watering building body, described transformer waters the left and right sides, bottom of building body and is all fixed with installation panel, described transformer by installation screw The outer wall watering building body is socketed with external iron core, and described external iron core includes iron-core coil, the top of described iron-core coil and bottom Being provided with at backplate, and the corner of two groups of backplates and connected by fixing screw, described transformer waters about the top of building body two Side is all plugged with binding post, and the outer wall of described binding post is provided with insulator, and the top of described binding post is provided with bus wiring Row, the top of described installation panel is provided with rosette, and the top of rosette is plugged with low-voltage lead, described low-voltage lead The other end runs through external iron core and is connected to transformer and waters the outer wall of building body.
Wherein, described transformer waters the inner chamber of building body and is provided with coil device, and the top of described coil device is provided with epoxy cylinder, The top of described epoxy cylinder is provided with secondary coil, the top of described secondary coil by dividing plate be provided with two groups relative once Coil, and the top often organizing primary winding is provided with high-voltage connection, the top of described high-voltage connection is provided with there is port, institute The bottom stating coil device is plugged with lead-in wire, and the other end of lead-in wire is connected with the outer wall of binding post, the one of described low-voltage lead End is connected with the outer wall of binding post.
Wherein, the inner chamber of described binding post is provided with at dry insulation medium, and the lumen centers of dry insulation medium and sets Being equipped with equalizing capacitor, the top of described equalizing capacitor is run through shading ring and is connected with the bottom of bus line bank, described all presses The outer wall of capacitor is wound with divider resistance string, and the bottom of described equalizing capacitor is provided with Wiring port, described binding post Bottom is provided with base, and the bottom of base is provided with mounting bar.
Wherein, described installation panel is L-type right angle insulation board.
Wherein, the inner chamber that described outlet port runs through mounting bar and base is in mating connection with Wiring port, and mounting bar Base be arranged at transformer and water the inner cavity top of building body.
Wherein, described equalizing capacitor is made up of for four identical group capacitors minimum, and often group equalizing capacitor all twines It is wound with divider resistance, and the end flanges of every group capacitor is provided with connection interface.
Compared with prior art, the invention has the beneficial effects as follows: this semiclosed dry type mutual inductor, transformer body uses and waters Note integral structure, full-closed structure, there is non-maintaining, the feature of full working scope, in capacitive under loading condition, iron core is unsaturated, Effectively prevent the generation of resonant vibration in the line, run safety, decrease interiors of products and the possibility of crackle and be full of cracks occurs, Not only increase the yield rate of the manufacture of this voltage transformer, and substantially increase the dielectric strength of pour mass device body, make whole The service life of individual voltage transformer is greatly prolonged, and improves the security performance of this voltage transformer simultaneously, and dry insulation is situated between Matter, it is ensured that unlikely destruction internal component after dielectric solidification, it is exhausted that suitable mechanical strength that it has ensures after solidification Edge medium can provide insulating supporting for internal components, it is ensured that the insulating properties that dielectric works under high voltages, and properly Heat dispersion ensure dielectric can comparatively fast by divider resistance generation heat outwards transmit.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram;
Fig. 2 is the structure right view of the present invention;
Fig. 3 is the binding post structure schematic diagram of the present invention;
Fig. 4 is the coil device structural representation of the present invention.
In figure: 1 transformer waters building body, 11 coil devices, 12 epoxy cylinders, 13 secondary coils, 14 primary windings, 15 high pressure draw Line, 16 outlet ports, 17 lead-in wires, 18 binding posts, 19 dividing plates, 2 installation panels, 3 installation screw, 4 external iron cores, 41 iron core line Circle, 42 backplates, 43 fix screw, 5 rosettees, 6 low-voltage leads, 7 binding posts, 71 dry insulation media, 72 equalizing capacitors, 73 Divider resistance string, 74 Wiring ports, 75 bases, 76 mounting bars, 8 insulators, 9 bus line banks, 91 shading rings.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise Embodiment, broadly falls into the scope of protection of the invention.
Referring to Fig. 1-4, the present invention provides a kind of technical scheme: a kind of semiclosed dry type mutual inductor, waters including transformer Building body 1, substantially increases voltage transformer and waters the insulating properties of building body, and the left and right sides, bottom that described transformer waters building body 1 is equal Being fixed with installation panel 2 by installing screw 3, described installation panel 2 is L-type right angle insulation board, during transformer work, it is provided that absolutely While edge characteristic, providing good stability to device, described transformer waters the outer wall of building body 1 and is socketed with external iron core 4, institute State external iron core 4 and include that iron-core coil 41, the top of described iron-core coil 41 and bottom are provided with backplate 42, and two groups of backplates Being connected by fixing screw 43 at the corner of 42, described transformer waters the left and right sides, top of building body 1 and is all plugged with binding post 7, The outer wall of described binding post 7 is provided with insulator 8, and the top of described binding post 7 is provided with bus line bank 9, described installed surface The top of plate 2 is provided with rosette 5, and the top of rosette 5 is plugged with low-voltage lead 6, and the other end of described low-voltage lead 6 passes through Wear external iron core 4 to be connected to transformer and water the outer wall of building body 1.
Wherein, described transformer waters the inner chamber of building body 1 and is provided with coil device 11, and the top of described coil device 11 is provided with ring Oxygen cylinder 12, the top of described epoxy cylinder 12 is provided with secondary coil 13, and the top of described secondary coil 13 is arranged by dividing plate 19 Having two groups of relative primary windings 14, be effectively increased overvoltage multiple, anti-saturation ability is strong, and often organizes the top of primary winding 14 Portion is provided with high-voltage connection 15, has that magnetic circuit is symmetrical, magnetic resistance is little and little feature is lost, it is ensured that the safety and stability of transformer Property, the top of described high-voltage connection 15 is provided with outlet port 16, and the bottom of described coil device 11 is plugged with lead-in wire 17, and lead-in wire The other end of 17 is connected with the outer wall of binding post 18, and one end of described low-voltage lead 6 is connected with the outer wall of binding post 18, logical Cross the interconnection function of binding post 18, the voltage in low-voltage lead 6 is incorporated into through lead-in wire 17 inside of coil device 11.
The inner chamber of described binding post 7 is provided with dry insulation medium 71, it is ensured that after dielectric solidification, unlikely destruction is internal Components and parts, the suitable mechanical strength that it has ensures that the dielectric after solidification can provide insulating supporting for internal components, protects The insulating properties that card dielectric works under high voltages, and suitably heat dispersion ensures that dielectric can be comparatively fast by dividing potential drop The heat that resistance produces outwards transmits, and is provided with equalizing capacitor 72 at the lumen centers of dry insulation medium 71, described all The top of piezoelectric capsule 72 is run through shading ring 91 and is connected with the bottom of bus line bank 9, and its median generatrix line bank 9 provides multiloop Public line, is into and out the conductor that confluxes of electricity, and the outer wall of described equalizing capacitor 72 is wound with divider resistance string 73, described all presses The bottom of capacitor 72 is provided with Wiring port 74, and the bottom of described binding post 7 is provided with base 75, and the bottom of base 75 sets It is equipped with mounting bar 76.
The inner chamber that described outlet port 16 runs through mounting bar 76 and base 75 is in mating connection with Wiring port 74, and installs The base 75 of bar 76 is arranged at transformer and waters the inner cavity top of building body 1, described equalizing capacitor 72 by minimum for identical four Group capacitor forms, and often group equalizing capacitor 72 is all wound with divider resistance, and the end flanges of every group capacitor is provided with even Connection interface, according to needs assembly more piece resistance and the equalizing capacitor 72 of different electric pressures, capacitor resistor unit fits into binding post 7 Inner chamber time, low-pressure end application dry insulation medium 71 is isolated, to draw second divided voltage holding wire.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, permissible Understand and these embodiments can be carried out multiple change without departing from the principles and spirit of the present invention, revise, replace And modification, the scope of the present invention be defined by the appended.

Claims (6)

1. a semiclosed dry type mutual inductor, waters building body (1) including transformer, and described transformer waters about the bottom of building body (1) Both sides are all fixed with installation panel (2) by installation screw (3), it is characterised in that: described transformer waters the outer wall set of building body (1) Being connected to external iron core (4), described external iron core (4) includes iron-core coil (41), the top of described iron-core coil (41) and bottom Being provided with at backplate (42), and the corner of two groups of backplates (42) and connected by fixing screw (43), described transformer waters building body (1) the left and right sides, top is all plugged with binding post (7), and the outer wall of described binding post (7) is provided with insulator (8), described in connect The top of terminal (7) is provided with bus line bank (9), and the top of described installation panel (2) is provided with rosette (5), and wiring The top of box (5) is plugged with low-voltage lead (6), and the other end of described low-voltage lead (6) runs through external iron core (4) and is connected to mutual inductance Device waters the outer wall of building body (1).
The semiclosed dry type mutual inductor of one the most according to claim 1, it is characterised in that: described transformer waters building body (1) Inner chamber be provided with coil device (11), the top of described coil device (11) is provided with epoxy cylinder (12), described epoxy cylinder (12) Top is provided with secondary coil (13), the top of described secondary coil (13) by dividing plate (19) be provided with two groups relative once Coil (14), and the top often organizing primary winding (14) is provided with high-voltage connection (15), the top of described high-voltage connection (15) Being provided with outlet port (16), the bottom of described coil device (11) is plugged with lead-in wire (17), and the other end of lead-in wire (17) with connect The outer wall of line terminals (18) connects, and one end of described low-voltage lead (6) is connected with the outer wall of binding post (18).
The semiclosed dry type mutual inductor of one the most according to claim 2, it is characterised in that: the inner chamber of described binding post (7) It is provided with at dry insulation medium (71), and the lumen centers of dry insulation medium (71) and is provided with equalizing capacitor (72), institute State the top of equalizing capacitor (72) to run through shading ring (91) and be connected with the bottom of bus line bank (9), described equalizing capacitor (72) outer wall is wound with divider resistance string (73), and the bottom of described equalizing capacitor (72) is provided with Wiring port (74), institute The bottom stating binding post (7) is provided with base (75), and the bottom of base (75) is provided with mounting bar (76).
The semiclosed dry type mutual inductor of one the most according to claim 3, it is characterised in that: described installation panel (2) is L-type Right angle insulation board.
The semiclosed dry type mutual inductor of one the most according to claim 3, it is characterised in that: described outlet port (16) is run through The inner chamber of mounting bar (76) and base (75) is in mating connection with Wiring port (74), and the base (75) of mounting bar (76) is all provided with Put the inner cavity top watering building body (1) at transformer.
6. according to the arbitrary described semiclosed dry type mutual inductor of one of claim 1-5, it is characterised in that: described equalizing capacitor (72) it is made up of for four identical group capacitors minimum, and often organizes equalizing capacitor (72) and be all wound with divider resistance, and often group The end flanges of capacitor is provided with connection interface.
CN201610716406.9A 2016-08-24 2016-08-24 A kind of semiclosed dry type mutual inductor Pending CN106205959A (en)

Priority Applications (1)

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CN201610716406.9A CN106205959A (en) 2016-08-24 2016-08-24 A kind of semiclosed dry type mutual inductor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610716406.9A CN106205959A (en) 2016-08-24 2016-08-24 A kind of semiclosed dry type mutual inductor

Publications (1)

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CN106205959A true CN106205959A (en) 2016-12-07

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018035756A1 (en) * 2016-08-24 2018-03-01 朱小涛 Semi-closed dry type transformer
CN109545529A (en) * 2018-12-30 2019-03-29 江西伊发电力科技股份有限公司 A kind of voltage transformer

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201036151Y (en) * 2007-04-30 2008-03-12 大连北方互感器有限公司 Backbone type totally-enclosed current mutual inductor
CN201340793Y (en) * 2009-01-19 2009-11-04 浙江天际互感器有限公司 Semi-enclosed indoor voltage transformer
CN201408639Y (en) * 2009-01-19 2010-02-17 浙江天际互感器有限公司 Indoor semi-closed single-phase potential transformer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201036151Y (en) * 2007-04-30 2008-03-12 大连北方互感器有限公司 Backbone type totally-enclosed current mutual inductor
CN201340793Y (en) * 2009-01-19 2009-11-04 浙江天际互感器有限公司 Semi-enclosed indoor voltage transformer
CN201408639Y (en) * 2009-01-19 2010-02-17 浙江天际互感器有限公司 Indoor semi-closed single-phase potential transformer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018035756A1 (en) * 2016-08-24 2018-03-01 朱小涛 Semi-closed dry type transformer
CN109545529A (en) * 2018-12-30 2019-03-29 江西伊发电力科技股份有限公司 A kind of voltage transformer

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