CN206148217U - Capacitance type potential transformer electromagnetic unit's intermediate transformer - Google Patents
Capacitance type potential transformer electromagnetic unit's intermediate transformer Download PDFInfo
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- CN206148217U CN206148217U CN201621198491.6U CN201621198491U CN206148217U CN 206148217 U CN206148217 U CN 206148217U CN 201621198491 U CN201621198491 U CN 201621198491U CN 206148217 U CN206148217 U CN 206148217U
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Abstract
The utility model discloses a capacitance type potential transformer electromagnetic unit's intermediate transformer, including transformer ware body and encapsulation shell, the main part of encapsulation shell be the cuboid, and the main part top is equipped with cylindrical boss, and the both ends of cylindrical boss are two excessive inclined planes respectively and intersect with the main part edge, be equipped with the full skirt on being located the main part of cylindrical boss one side, be equipped with circular recess on being located the main part of cylindrical boss opposite side, be provided with once high -pressure binding post in the circular recess to circular recess for the center above that the portion be provided with endocentric drum formula limit wall, along being provided with square groove on the wall of limit, the both sides of the main part of encapsulation shell are equipped with trapezoidal boss respectively. The utility model discloses can be identical totally with voltage -dividing capacitor input interface when the final assembly, the main part top sets up cylindrical boss, and it is crossing with the main part edge that the both ends of cylindrical boss are two excessive inclined planes respectively, not only can optimize structure, makes the appearance of transformer more pleasing to the eye, can also strengthen the electrical insulation distance.
Description
Technical field
The utility model belongs to intermediate transformer, and in particular to one kind 110 ~ 220kV capacitance type potential transformer electromagnetism lists
The intermediate transformer of unit.
Background technology
The main flow 110-220kV capacitance type potential transformer for running at present（Abbreviation CVT）, mainly by capacitor cell and electromagnetism
Unit is constituted, and electromagnetic unit generally uses laminated iron core oil-insulation mode, and which causes overall volume larger, and
Using oil-insulation easy to leak, antiseptic property is poor.Due to the shadow by many factors such as design level, technological level and raw material
Ring, the quality problems that CVT is present are more, such as electromagnetic unit secondary side decompression cause secondary output voltage to diminish, in electromagnetic unit
Portion makes moist, intermediate transformer failure etc..
The content of the invention
The purpose of this utility model be to provide a kind of compact conformation, easy for installation, totally-enclosed, resistance to pollution flashover, HV Terminal with
There is capacitance partial pressure unit special purpose interface, high pressure primary winding to carry out multi-tap, be capable of achieving accurately adjustment voltage ratio, secondary connection
With linked reactor terminal, the 220kV capacitance type potential transformer electromagnetic units with carrier communication connection terminal in box
Vacuum pours into a mould the intermediate transformer of sealed insulation.
To achieve these goals, the technical solution adopted in the utility model is：A kind of capacitance type potential transformer electromagnetism
The intermediate transformer of unit, including transformer body and the package casing being arranged on outside transformer body, it is characterised in that：It is described
The main body of package casing is cuboid, and body top is provided with cylindrical boss, and the two ends of cylindrical boss are excessive in two respectively
Inclined-plane intersect with body rim；Main body positioned at cylindrical boss side is provided with full skirt, and full skirt top is provided with carrier wave communication
Connection terminal；It is provided with circular groove, circular groove positioned at the main body of cylindrical boss opposite side and once high-voltage connecting is set
Line terminals, are provided with an upper portion thereof concentric drum type brake side wall centered on circular groove, and edge is provided with square groove in side wall；
The main body of package casing is respectively provided on two sides with trapezoid boss, and once low-voltage wiring terminal is arranged on the trapezoid boss of side,
Secondary terminals are provided with the trapezoid boss of opposite side, a low-voltage wiring terminal is the terminal that multiple coils are drawn, and is sealed
The bottom of the main body of casing is base.
Further, the package casing is formed using epoxide resin vacuum cast.
Further, the iron core of day character form structure is provided with the transformer body, iron core is placed in main body in level
Center.
Further, the iron core rolls thermally treated dipping and forms using silicon steel sheet.
Further, a low-voltage wiring terminal is provided with the protective cover of strap sealing of hole screw.
Further, the secondary terminals are provided with the protective cover of strap sealing of hole screw.
Further, multiple installing holes are provided with the base, are provided with grounding tag on an installing hole wherein.
Compared with prior art, the beneficial effects of the utility model are：1st, high-voltage connection terminal is arranged on circular recessed
In groove, drum type brake side wall is provided with an upper portion thereof, along square groove is provided with side wall, the design is easy in final assembly
Fit like a glove with derided capacitors input end interface, sealing is more reliable.2nd, full skirt is set in main body, surface creepage ratio can be increased
Away from.3rd, body top arranges cylindrical boss, and the two ends of cylindrical boss are respectively in two excessive inclined-planes and body rim phase
Hand over, the design can not only optimize structure, make the profile of transformer more attractive, moreover it is possible to increase electric insulation distance, final assembly
When it is more convenient.4th, low-voltage wiring terminal is the terminal that multiple coils are drawn, and the design is capable of achieving the accurate adjustment of voltage ratio,
High-precision requirement is made up to, and adjusts very convenient quick.When the whole machine of equipment is in long-time transport or long-term normal operation,
Also ensure that overall performance is more reliable and more stable.5th, iron core is set to into a day character form structure, is rolled using silicon steel sheet thermally treated
Dipping is formed, and iron core is placed in the center of package casing main body in level, and the design is extremely strong to enhance product performance, and is conducive to drop
Low product height, when overall design is assembled, can effectively reduce whole machine height, further lift overall performance and mechanical strength.
6th, a low-voltage wiring terminal and secondary terminals are provided with protective cover and strap sealing of hole screw, in final assembly, fixed blade guard
Screw have locking sealing function, prevent artificial mis-wired, consider debugging no-load voltage ratio when personal safety and electric insulation peace
Full protection function.
Description of the drawings
Fig. 1 is 3 d effect graph of the present utility model
Fig. 2 faces partial sectional view for Fig. 1's
Fig. 3 is Fig. 2 vertical view cutaway drawings
Fig. 4 is electrical schematic diagram
In Fig. 1-3：1st, package casing, 1-1, main body, 1-2, cylindrical boss, 1-3, inclined-plane, 2, high-voltage terminal
Son, 3, low-voltage wiring terminal, 4, secondary terminals, 5, base, 5-1, installing hole, 5-2 grounding tags, 6, full skirt, 7, carrier wave
Communication connection terminal, 8, transformer body, 8-1 is unshakable in one's determination, and 9, circular groove, 10, side wall, 11, square groove, 12, trapezoid boss,
13rd, protective cover.
In Fig. 4：A is a high-voltage connection terminal, and A1, K1P1, K2P2 ... K6P6 is a low-voltage wiring terminal, and N is
Carrier communication connection terminal, N ˊ are ground terminal, and 1a1n, 2a2n, dadn are secondary terminals.
Specific embodiment
Technology contents of the present utility model are further described in conjunction with accompanying drawing.
As Figure 1-3, a kind of intermediate transformer of capacitance type potential transformer electromagnetic unit, including transformer body 8
With the package casing 1 being arranged on outside transformer body 8.
The package casing 1 is formed using epoxide resin vacuum cast, and main body 1-1 of package casing 1 is cuboid, main body
1-1 tops are provided with cylindrical boss 1-2, and the two ends of cylindrical boss 1-2 are respectively in two excessive inclined-plane 1-3 and main body 1-1
Intersect at edge.
Main body 1-1 positioned at cylindrical boss 1-2 sides is provided with full skirt 6, and the top of full skirt 6 is provided with carrier wave communication connection end
Son 7.
It is provided with circular groove 9, circular groove 9 positioned at main body 1-1 of cylindrical boss 1-2 opposite sides and arranges once
High-voltage connection terminal 2, is provided with an upper portion thereof concentric drum type brake side wall 10 centered on circular groove 9, and edge sets in side wall 10
It is equipped with square groove 11.
Main body 1-1 of package casing 1 is respectively provided on two sides with trapezoid boss 12, and on the trapezoid boss 12 of side one is provided with
Secondary low-voltage wiring terminal 3 a, low-voltage wiring terminal 3 is the terminal that multiple coils are drawn, on a low-voltage wiring terminal 3
It is provided with the protective cover 13 of strap sealing of hole screw.Secondary terminals 4 are provided with the trapezoid boss 12 of opposite side, are set on secondary terminals 4
There is the protective cover 13 of strap sealing of hole screw.
The bottom of main body 1-1 of package casing 1 is base 5, and 4 installing hole 5-1 are provided with base 5, one wherein
Grounding tag 5-2 is provided with installing hole 5-1.
The 8-1 unshakable in one's determination of day character form structure is provided with transformer body 8,8-1 unshakable in one's determination rolls thermally treated leaching using silicon steel sheet
Stain is formed, and 8-1 unshakable in one's determination is placed in the center of main body 1-1 in level.
The utility model intermediate transformer is installed on 110-220kV capacitor voltages with during final assembly using supported
In casing in transformer, base 5 is fixed on box bottom, is fixed using bolt.One time high-voltage connection terminal 2 is connected to height
Install caulking gum in the low-pressure side of voltage capacitance divider, circular groove 9 additional and constitute an entirety with side wall 10, square groove 11,
Its lumen loading insulating oil, with the smooth interface of the low-pressure side of high-voltage capacitive divider and ensures strict sealed insulation, selects adjustment
A suitable low-voltage wiring terminal 3 is grounded, and can fully ensure that accurately and reliably voltage when high accuracy grade.High-voltage capacitance point
The low pressure tail end of depressor is connected on carrier wave communications devices with carrier wave communication connection terminal 7 using insulated cable, by electromagnetism sense
Principle is answered, metering, measurement and protection device is outputed signal to so that is connected even closer, reliable with whole electrical-mechanical, mechanical strength
It is higher.
The utility model at home and abroad takes the lead in proposing the middle anaplasia of 110 ~ 220kV capacitance type potential transformer electromagnetic units
Depressor using epoxide resin vacuum cast new principle, new method, with simple structure, dry insulation is good, certainty of measurement is high,
The characteristics of strong antijamming capability and high mechanical strength；Change in the past because electromagnetic unit secondary side decompression causes secondary output voltage
Diminish, electromagnetic unit internal wetted, electromagnetic unit transformer fault, through integration have carrier communication function.
The electromagnetic field signal progress of disease mechanism of neo-epoxy resin vacuum casting transformer, anti-interference is have studied on this basis
Principle and method, frequency characteristic, stable state transient characterisitics, high-low pressure winding multi-tap and interface the guardian techniques such as enforcement.
Claims (7)
1. a kind of intermediate transformer of capacitance type potential transformer electromagnetic unit, including transformer body and transformer device is arranged on
Package casing outside body, it is characterised in that：The main body of the package casing is cuboid, and body top is provided with cylindrical boss,
Intersect with body rim in two excessive inclined-planes respectively at the two ends of cylindrical boss；In the main body of cylindrical boss side
Full skirt is provided with, full skirt top is provided with carrier wave communication connection terminal；It is provided with circular recessed positioned at the main body of cylindrical boss opposite side
Once high-voltage connection terminal is set in groove, circular groove, concentric cylinder is provided with an upper portion thereof centered on circular groove
Formula side wall, edge is provided with square groove in side wall；The main body of package casing is respectively provided on two sides with trapezoid boss, side it is trapezoidal
Once low-voltage wiring terminal is set on boss, secondary terminals are provided with the trapezoid boss of opposite side, a low pressure connects
Line terminals are the terminals that multiple coils are drawn, and the bottom of the main body of package casing is base.
2. the intermediate transformer of capacitance type potential transformer electromagnetic unit as claimed in claim 1, it is characterised in that：The envelope
Casing is formed using epoxide resin vacuum cast.
3. the intermediate transformer of capacitance type potential transformer electromagnetic unit as claimed in claim 1 or 2, it is characterised in that：Institute
The iron core that day character form structure is provided with transformer body is stated, iron core is placed in the center of main body in level.
4. the intermediate transformer of capacitance type potential transformer electromagnetic unit as claimed in claim 3, it is characterised in that：The iron
The heart rolls thermally treated dipping and forms using silicon steel sheet.
5. the intermediate transformer of capacitance type potential transformer electromagnetic unit as claimed in claim 3, it is characterised in that：Described one
Secondary low-voltage wiring terminal is provided with the protective cover of strap sealing of hole screw.
6. the intermediate transformer of capacitance type potential transformer electromagnetic unit as claimed in claim 3, it is characterised in that：Described two
Secondary terminal is provided with the protective cover of strap sealing of hole screw.
7. the intermediate transformer of capacitance type potential transformer electromagnetic unit as claimed in claim 3, it is characterised in that：The bottom
Multiple installing holes are provided with seat, grounding tag is provided with an installing hole wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621198491.6U CN206148217U (en) | 2016-11-07 | 2016-11-07 | Capacitance type potential transformer electromagnetic unit's intermediate transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621198491.6U CN206148217U (en) | 2016-11-07 | 2016-11-07 | Capacitance type potential transformer electromagnetic unit's intermediate transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206148217U true CN206148217U (en) | 2017-05-03 |
Family
ID=58625909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621198491.6U Active CN206148217U (en) | 2016-11-07 | 2016-11-07 | Capacitance type potential transformer electromagnetic unit's intermediate transformer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106373720A (en) * | 2016-11-07 | 2017-02-01 | 湖南大北互互感器有限公司 | Intermediate transformer of capacitor voltage transformer electromagnetic unit |
| CN107689290A (en) * | 2017-08-21 | 2018-02-13 | 江西省互电气有限公司 | A kind of novel dry calutron |
-
2016
- 2016-11-07 CN CN201621198491.6U patent/CN206148217U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106373720A (en) * | 2016-11-07 | 2017-02-01 | 湖南大北互互感器有限公司 | Intermediate transformer of capacitor voltage transformer electromagnetic unit |
| CN106373720B (en) * | 2016-11-07 | 2018-06-01 | 湖南大北互互感器有限公司 | A kind of intermediate transformer of capacitance type potential transformer electromagnetic unit |
| CN107689290A (en) * | 2017-08-21 | 2018-02-13 | 江西省互电气有限公司 | A kind of novel dry calutron |
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