CN208985852U - Indoor all insulation ground-type potential transformer - Google Patents
Indoor all insulation ground-type potential transformer Download PDFInfo
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- CN208985852U CN208985852U CN201821861086.7U CN201821861086U CN208985852U CN 208985852 U CN208985852 U CN 208985852U CN 201821861086 U CN201821861086 U CN 201821861086U CN 208985852 U CN208985852 U CN 208985852U
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- insulator
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- potential transformer
- type potential
- insulation
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Abstract
The utility model relates to electric system high-tension measurement or relay protection device, in particular to a kind of indoor all insulation ground-type potential transformer.Including mounting base, the insulator being set on mounting base and it is sealed and placed in the intracorporal voltage body of insulation, insulator is rectangular parallelepiped structure and front and back end is globoidal structure, the top of insulator is equipped with the top bump of arc-shaped structure, the both ends of top bump are equipped with primary connection terminal, top bump is equipped with multiple arcs full skirt I, the forward lower part of insulator is equipped with secondary connection seat, and the left and right sides of insulator is equipped with the arc full skirt II of multiple horizontal layouts.The utility model is small in size, function is complete, easy for installation, easy to maintain, insulation is stablized, safe operation, more improves the designing and manufacturing level of voltage transformer switchgear.
Description
Technical field
The utility model relates to electric system high-tension measurement or relay protection device, in particular to a kind of indoor all insulation connects
Ground formula voltage transformer.
Background technique
Voltage transformer is the equipment that voltage, electric energy are measured in electric system or electric control system, in order to realize switch
Cabinet miniaturization and repair and maintenance are convenient, generally use the semi-insulated design form of voltage transformer, existing voltage transformer half
Insulating forms are as follows: a mainly A terminal connects high pressure, N-terminal ground connection, size and insulation quality require it is very low, when installation and maintenance
Than more complicated, qualifying point is very more, otherwise will affect the overall performance of voltage transformer, can give the practical fortune of voltage transformer
Hidden danger has been buried in row safety.
Utility model content
In view of the above-mentioned problems, the purpose of this utility model is to provide a kind of indoor all insulation ground-type potential transformer,
To change the status that the low occupied space of existing voltage transformer semi-insulated voltage is big, installation maintenance is cumbersome.
To achieve the goals above, the utility model uses following technical scheme:
A kind of indoor all insulation ground-type potential transformer, including mounting base, be set to it is exhausted on the mounting base
Edge body and it being sealed and placed in the intracorporal voltage body of the insulation, the insulator is rectangular parallelepiped structure and front and back end is globoidal structure,
The top of the insulator is equipped with the top bump of arc-shaped structure, and the both ends of the top bump are equipped with primary connection terminal,
The top bump is equipped with multiple arcs full skirt I, and the forward lower part of the insulator is equipped with secondary connection seat.
The left and right sides of the insulator is equipped with the arc full skirt II of multiple horizontal layouts.
The left and right sides lower part of the insulator is equipped with the boss contacted with the mounting base, the arc full skirt II
Between the boss and the top bump.
The top bump is lateral semi- cylindrical structure, and the both ends and bottom of the top bump pass through inclined-plane and institute
State insulator transition connection.
The front and back end of the insulator is vertical semi- cylindrical structure, and the upper end of the vertical semi- cylindrical structure passes through half
Surface of Sphere is connect with the insulator transition.
Two primary connection terminals are cylindrical structure, and outside is equipped with crescent full skirt.
Multiple arc full skirts I are parallel to each other and size is identical, and the arc full skirt I and cross section are trapezium structure.
The outside mask of the secondary connection seat is equipped with secondary protection cover, and the secondary protection cover is made of transparent material,
And there is band lead sealing screw.
The voltage body includes iron core, first winding and secondary winding, the secondary winding and first winding by it is interior to
An insulation framework upper rear set is wound on one heart outside on iron core, insulating layer is equipped between the first winding and secondary winding,
The first winding is connect with the primary connection terminal, and the secondary wiring terminals of the secondary winding are by the secondary connection seat
It draws.
The insulator is an integral structure using poured with epoxy resin.
The advantages of the utility model and beneficial effect are:
1. small in size, function is complete: the utility model optimizing structure design, product uses c-type iron core, structure body more compact
Product is small, and capacity is big, and the corollary new voltage transformer for being more applicable for switchgear uses；
2. easy for installation, easy to maintain: when the product of the utility model is installed and used, only need to install mutual inductor according to phase sequence
In switchgear, the assembly time of switchgear is effectively saved；Product is simpler when overhauling, and does not need particularly to safeguard
Work；
3. insulation is stablized, safe operation: the utility model is formed using epoxide resin material is integrated poured, and insulation is reliable；
Terminal both sides increase a creepage distance, switchgear size are effectively reduced, from design with isolation full skirt design
Many hidden danger of quality are effectively prevented, guarantee that operation is safer.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is the top view of Fig. 1；
Fig. 4 is the A-A cross-sectional view of Fig. 3.
In figure: 1 is iron core；2 be first winding；3 be secondary winding；4 be insulating layer；5 be primary connection terminal；6 be two
Secondary junction block；7 be mounting base；8 be boss；9 be insulator；10 be secondary protection cover；11 be crescent full skirt；12 be arc
Full skirt I；13 be arc full skirt II, top bump.
Specific embodiment
In order to keep the purpose of this utility model, technical solution and advantage clearer, with reference to the accompanying drawing and it is embodied
The utility model is described in detail in example.
As shown in Figure 1-3, a kind of indoor all insulation ground-type potential transformer provided by the utility model, including installation bottom
Plate 7, the insulator 9 being set on mounting base 7 and the voltage body being sealed and placed in insulator 9, insulator 9 are cuboid knot
Structure and front and back end are globoidal structure, and the top of insulator 9 is equipped with the top bump 14 of arc-shaped structure, the two of top bump 14
End is equipped with primary connection terminal 5, and top bump 14 is equipped with multiple arcs full skirt I 12, and the forward lower part of insulator 9 is equipped with secondary
Junction block 6.
The arc full skirt II 13 of multiple horizontal layouts is equipped in the middle part of the left and right sides of insulator 9.The left and right two of insulator 9
Side lower part is equipped with the boss 8 contacted with mounting base 7, and arc full skirt II 13 is between boss 8 and top bump 14, mutually
Parallel and shape is identical, guarantees that insulation uniformly, can effectively avoid dust dirt deposition.
Top bump 14 is lateral semi- cylindrical structure, and the both ends and bottom of top bump 14 pass through inclined-plane and insulator
9 transition connection.The front and back end of insulator 9 is vertical semi- cylindrical structure, and the upper end of vertical semi- cylindrical structure passes through semi-round ball
Face is connect with 9 transition of insulator.
Two primary connection terminals 5 are cylindrical structure and outside is equipped with crescent full skirt 11, increase and once climb electricity over the ground
Distance.
Multiple arcs full skirt I 12 is parallel to each other and size is identical, and arc full skirt I 12 and cross section are trapezium structure, increases
Alternate surface creepage distance.
The outside mask of secondary connection seat 6 is equipped with secondary protection cover 10, and secondary protection cover 10 is made of transparent material, and is had
There is band lead sealing screw.
As shown in figure 4, voltage body includes iron core 1, first winding 2 and secondary winding 3, secondary winding 3 and first winding
2 are wound on an insulation framework upper rear set on iron core 1 with one heart from inside to outside, are equipped between first winding 2 and secondary winding 3 exhausted
Edge layer 4, first winding 2 are connect with primary connection terminal 5, and the secondary wiring terminals of secondary winding 3 are drawn by secondary connection seat 6.
Insulator 9 is an integral structure using poured with epoxy resin.
The manufacturing process of the utility model is:
Secondary winding 3 is wound on an insulation framework upper rear set on iron core 1 by the way that insulating layer 4 is concentric with first winding 2,
It is fixed in casting mold after insulating and buffering wrapping, has reconnected first winding inserts, connect secondary connection, adjustment is exhausted
Edge distance is solidified using epoxide resin vacuum casting, is finally mounted as a whole on a mounting base 7；Become therewith: producing
5 symmetric configuration of primary connection terminal of product, and it is alternate with parallel and identical arc full skirt I 8, the cross section of arc full skirt I 8
Be it is trapezoidal, increase alternate surface creepage distance；Envelope set iron core 1, first winding 2, secondary winding 3 insulator 9 be cuboid knot
Structure, front and back arc surface, the cylindrical top bump 14 of top semi-circular, there is boss 8 in lower section, recessed between boss 8 and top bump 14
Slot has arc full skirt II 13, and arc full skirt II 13 is parallel and has identical arcuate shape, guarantees that insulation uniformly, can effectively avoid ash
Dustiness dirt deposition；Two primary connection terminals 5 at 9 top of insulator are that overall front and back is symmetric, and are guaranteed and a sub-high pressure
The effective electrical contact of connecting line, and guarantee that entirety has enough mechanical strengths, there is crescent moon in lower end centre cylindrical outward
Shape arc cluster parachute 11 increases primary creepage distance over the ground；The secondary connection seat 6 set is sealed to be located under the deviation of integral structure front end
The position in portion increases the insulation distance of primary connection terminal over the ground；The outside mask of secondary connection seat 6 is equipped with secondary protection cover
10, it is made of transparent material, there is band lead sealing screw thereon.
In use, the mounting base first with voltage transformer is successively mounted in voltage transformer switch according to phase sequence distance
On bottom of cabinet disk, then product primary connection terminal is accessed, another terminal N is grounded together, finally carries out secondary line cable and two
The connection of secondary connecting terminal, and install secondary protection cover 10 additional, all insulation ground-type potential transformer assembly work is completed.
The indoor all insulation ground-type potential transformer of the utility model is wanted fully according to national standard and switchgear technology
A kind of new product asked and designed rolls iron core using c-type, using electromagnetic conversion principle, secondary voltage is enable accurately to reflect
The situation of change of primary voltage, uses as voltage measurement and relay protection.The utility model is small in size, good appearance, function
Entirely, easy for installation, easy to maintain, insulation stabilization, safe operation, more improve the design and manufacture water of voltage transformer switchgear
It is flat.
The foregoing is merely the embodiments of the present invention, are not intended to limit the protection scope of the utility model.It is all
Any modification, equivalent substitution and improvement made within spirit of the present utility model and principle, extension etc., are all contained in this reality
With in novel protection scope.
Claims (10)
1. a kind of indoor all insulation ground-type potential transformer, which is characterized in that including mounting base (7), be set to the peace
The voltage body for filling the insulator (9) on bottom plate (7) and being sealed and placed in the insulator (9), the insulator (9) are cuboid
Structure and front and back end are globoidal structure, and the top of the insulator (9) is equipped with the top bump (14) of arc-shaped structure, described
The both ends of top bump (14) are equipped with primary connection terminal (5), and the top bump (14) is equipped with multiple arcs full skirt I
(12), the forward lower part of the insulator (9) is equipped with secondary connection seat (6).
2. indoor all insulation ground-type potential transformer according to claim 1, which is characterized in that the insulator (9)
The left and right sides be equipped with multiple horizontal layouts arc full skirt II (13).
3. indoor all insulation ground-type potential transformer according to claim 2, which is characterized in that the insulator (9)
Left and right sides lower part be equipped with the boss (8) that contact with the mounting base (7), the arc full skirt II (13) is positioned at described convex
Between platform (8) and the top bump (14).
4. indoor all insulation ground-type potential transformer according to claim 1, which is characterized in that the top bump
It (14) is lateral semi- cylindrical structure, the both ends and bottom of the top bump (14) pass through inclined-plane and the insulator (9)
Transition connection.
5. indoor all insulation ground-type potential transformer according to claim 1, which is characterized in that the insulator (9)
Front and back end be vertical semi- cylindrical structure, the upper end of the vertical semi- cylindrical structure passes through semicircle sphere and the insulator
(9) transition connects.
6. indoor all insulation ground-type potential transformer according to claim 1, which is characterized in that two described once to connect
Line terminals (5) are cylindrical structure, and outside is equipped with crescent full skirt (11).
7. indoor all insulation ground-type potential transformer according to claim 1, which is characterized in that multiple arc umbrellas
Skirt I (12) is parallel to each other and size is identical, and the arc full skirt I (12) and cross section are trapezium structure.
8. indoor all insulation ground-type potential transformer according to claim 1, which is characterized in that the secondary connection seat
(6) outside mask is equipped with secondary protection cover (10), and the secondary protection cover (10) is made of transparent material, and has band lead sealing
Screw.
9. indoor all insulation ground-type potential transformer according to claim 1, which is characterized in that the voltage body packet
Include iron core (1), first winding (2) and secondary winding (3), the secondary winding (3) and first winding (2) it is concentric from inside to outside around
In an insulation framework upper rear set on iron core (1), insulating layer is equipped between the first winding (2) and secondary winding (3)
(4), the first winding (2) connect with the primary connection terminal (5), the secondary wiring terminals of the secondary winding (3) by
The secondary connection seat (6) is drawn.
10. indoor all insulation ground-type potential transformer according to claim 1, which is characterized in that the insulator (9)
It is an integral structure using poured with epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821861086.7U CN208985852U (en) | 2018-11-13 | 2018-11-13 | Indoor all insulation ground-type potential transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821861086.7U CN208985852U (en) | 2018-11-13 | 2018-11-13 | Indoor all insulation ground-type potential transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208985852U true CN208985852U (en) | 2019-06-14 |
Family
ID=66790804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821861086.7U Active CN208985852U (en) | 2018-11-13 | 2018-11-13 | Indoor all insulation ground-type potential transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208985852U (en) |
-
2018
- 2018-11-13 CN CN201821861086.7U patent/CN208985852U/en active Active
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