CN208045302U - It is a kind of can changing-over low current than inverted type current transformer first winding structure - Google Patents
It is a kind of can changing-over low current than inverted type current transformer first winding structure Download PDFInfo
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- CN208045302U CN208045302U CN201820601006.8U CN201820601006U CN208045302U CN 208045302 U CN208045302 U CN 208045302U CN 201820601006 U CN201820601006 U CN 201820601006U CN 208045302 U CN208045302 U CN 208045302U
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Abstract
The utility model is related to it is a kind of can changing-over low current than inverted type current transformer first winding structure, including device body, Primary Conductor and primary connection plate, Primary Conductor is wrapped in device, two ends are connect with primary connection plate respectively by connecting terminal, primary connection plate is fastened on the sides oil conservater P1, P2 respectively, according to serial or parallel connection needs, dress changing-over plate on primary connection plate；Primary Conductor 1 is two sections of annealed copper strand wires being wrapped in device, and it is a circle that annealed copper strand wire, which often passes through device body ring portion once, repeatedly device body ring portion is passed through to form multi-turn structure.Annealed copper strand wire is wrapped in device by the utility model according to design the number of turns, by science between each component, is reliably connected.If requiring to change electric current ratio in use, the connection type that need to only change the side P1, P2 connection in series-parallel changing-over plate can be realized, and have simple in structure, advantage easy to use.
Description
Technical field
The utility model is related to a kind of high-tension current inductor, specially it is a kind of can changing-over low current than inverted electric current
Mutual inductor first winding structure.
Background technology
High voltage oil immersion inverted type current transformer be one kind be widely used in electric system for electric current, electric energy measurement and
Equipment used for relay protection.One of advantage of inverted type current transformer just can be achieved on a multi-turn structure (first winding
Can more than ten circle of coiling or tens circles as needed) with adaptive system small rated currents compare demand.But traditional first winding multiturn knot
Structure principle as shown in Figure 1, when need convert switching current ratio when need busbar changing to a terminals P 12 from a terminals P 11,
Due to the limitation of structure, remanufacturing connection busbar is generally required, cost is increased, it is cumbersome for installation, it is inconvenient for use.
Utility model content
Connection busbar need to be remanufactured when for high voltage oil immersion inverted type current transformer switching current ratio in the prior art,
In the presence of increase cost, it is cumbersome for installation the deficiencies of, problem to be solved in the utility model be to provide it is a kind of facilitate installation can changing-over
Low current than inverted type current transformer first winding structure.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
The utility model it is a kind of can changing-over low current than inverted type current transformer first winding structure, including device body,
Primary Conductor and primary connection plate, Primary Conductor are wrapped in device, two ends by connecting terminal respectively with primary connection
Plate connects, and primary connection plate is fastened on the sides oil conservater P1, P2 respectively, according to serial or parallel connection needs, the handle on primary connection plate
Fill changing-over plate.
Primary Conductor 1 is two sections of annealed copper strand wires being wrapped in device, and annealed copper strand wire is once often across device body ring portion
One circle repeatedly passes through device body ring portion to form multi-turn structure.
Primary connection plate includes conducting rod and epoxy resin, and using epoxy resin pouring structure, i.e. two conducting rods are logical
Cross poured with epoxy resin formed two conducting rods be arranged parallel, the integral structure of mutually insulated.
Conducting rod is process by aluminium bar, the one end being placed in current transformer oil conservater be processed into it is plate, and flat
The hole being connect with each end of annealed copper strand wire is bored on face, the other end being placed in air need to bore and each changing-over in its end face center position
The threaded hole of plate connection.
Changing-over plate includes the first~tri- changing-over plate, wherein the first changing-over plate is linear type plate, the second changing-over plate is L shaped plate,
Third changing-over plate is right angle V shaped slab.
The utility model has the advantages that and advantage：
1. annealed copper strand wire is wrapped in device by the utility model according to design the number of turns, by science between each component, can
By being formed by connecting.If requiring to change electric current ratio in use, the connection type of the side P1, P2 connection in series-parallel changing-over plate need to be only changed
It can be realized, there is simple in structure, advantage easy to use.
2. being not required to remanufacture connection busbar using the utility model, production cost is reduced.
Description of the drawings
Fig. 1 is multi-turn structure schematic diagram of high voltage oil immersion inverted type current transformer in the prior art；
Fig. 2A is the utility model high-tension current inductor first winding cascaded structure schematic diagram；
Fig. 2 B are the utility model high-tension current inductor first winding parallel-connection structure schematic diagram；
Fig. 3 A are the utility model high-tension current inductor first winding structural front view；
Fig. 3 B are first winding coiling layout drawing in Fig. 3 A；
Fig. 4 A are changing-over harden structure front view of the utility model high-tension current inductor；
Fig. 4 B are the left view of Fig. 4 A；
Fig. 5 A are the sides the utility model high-tension current inductor first winding cascaded structure P1 connection diagram；
Fig. 5 B are the sides the utility model high-tension current inductor first winding cascaded structure P2 connection diagram；
Fig. 5 C are the sides the utility model high-tension current inductor first winding parallel-connection structure P1 connection diagram；
Fig. 5 D are the sides the utility model high-tension current inductor first winding parallel-connection structure P2 connection diagram；
Fig. 6 is the utility model high-tension current inductor first winding practical application structural schematic diagram.
Wherein, 1 is Primary Conductor, and 2 be primary connection plate, and 3 be connecting terminal, and 4 be a terminal, and 5 be the first changing-over plate,
6 be the second changing-over plate, and 7 be third changing-over plate, and 8 be annealed copper strand wire, and 9 be conducting rod, and 10 be epoxy resin, and 11 be annealed copper strand wire end
Head.
Specific implementation mode
The utility model is further elaborated with reference to the accompanying drawings of the specification.
As shown in Fig. 3 A, 3B, the utility model it is a kind of can changing-over low current than inverted type current transformer first winding
Structure, including：Device body, Primary Conductor 1 and primary connection plate 2, Primary Conductor 1 are wrapped in device, and two ends pass through wiring
Terminal 3 is connect with primary connection plate 2 respectively, and primary connection plate 2 is fastened on the sides oil conservater P1, P2 respectively, according to serial or parallel connection
It needs, dress changing-over plate on primary connection plate 2.
In the present embodiment, Primary Conductor 1 is two sections of annealed copper strand wires 8 being wrapped in device, and annealed copper strand wire often passes through device body
Ring portion is once a circle, repeatedly device body ring portion is passed through to form multi-turn structure.
Primary connection plate 2 includes conducting rod 9 and epoxy resin 10, using epoxy resin pouring structure, i.e. two conductions
Bar 9 passes through the parallel setting of cast two conducting rods 9 of formation of epoxy resin 10, the integral structure of mutually insulated.Such as Fig. 4 A, 4B institute
Show, primary connection plate 2 includes conducting rod 9 and epoxy resin 10, and using epoxy resin pouring structure, i.e. two conducting rods 9 are logical
Cross the cast of epoxy resin 10 formed two conducting rods 9 parallel setting, mutually insulated integral structure.
In the present embodiment, conducting rod 9 is process by aluminium bar, and the one end being placed in current transformer oil conservater is processed into flat
Template, and the hole being connect with 8 each end of annealed copper strand wire is bored in the plane, the other end being placed in air need to be in its end face center position
Set the threaded hole for boring and being connect with each changing-over plate.
Changing-over plate includes the first~tri- changing-over plate 5~7, wherein the first changing-over plate 5 is linear type plate, the second changing-over plate 6 is L
Shape plate, third changing-over plate 7 are right angle V shaped slab.
In the present embodiment, on the inside of oil conservater, two sections of annealed copper strand wires 8 are respectively wound around device body ring portion by design the number of turns and constitute
First winding, 8 both ends of annealed copper strand wire are connected to 9 tablet end I, I ', II, II ' of conducting rod by connecting terminal 3 and locate, and will be primary
Terminal plate 2 is fastened on oil conservater.
As shown in Fig. 5 A~5D, Fig. 6, on the outside of oil conservater, by a terminal 4 respectively mounted in the sides oil conservater P1, P2.
When being connected as cascaded structure, 5 one end of the first changing-over plate is connect with the terminal 4 of the sides P1 one time, it is conductive at the other end and I
Bar connects, and through being connected to I ' place's conducting rod on the inside of oil conservater, is connected to the sides P1 second through the second changing-over of the sides P2 plate 6 and oil conservater and changes
Fishplate bar 6 is most connected to the sides P2 one through the first changing-over plate 5 afterwards through being connected to II ' place's conducting rod on the inside of conducting rod at II and oil conservater
Secondary terminal 4 forms series loop as shown in Figure 2 A.
When being connected as parallel-connection structure, two piece of first 5 one end of changing-over plate is connect with the terminal 4 of the sides P1 one time, the other end and I
Place, conducting rod 9 connects at II, through I ' place, II ' place's conducting rod are connected on the inside of oil conservater simultaneously, most afterwards through the first changing-over plate 5,
Third changing-over plate 7 is connected to the terminal 4 of the sides P2 one time simultaneously, and the other end and the oil conservater equipotential link of third changing-over plate 7 ensure
Product safety is run, and forms shunt circuit as shown in Figure 2 B.
In conclusion when needing cascaded structure being converted into parallel-connection structure, the second changing-over of the sides P1 plate 6 need to be only changed to
The second changing-over of the sides P2 plate 6 is changed to third changing-over plate 7 and can be realized by the first changing-over plate 5, and vice versa.
Claims (5)
1. it is a kind of can changing-over low current than inverted type current transformer first winding structure, it is characterised in that：Including device body, one
Partial conductor and primary connection plate, Primary Conductor are wrapped in device, two ends by connecting terminal respectively with primary connection plate
Connection, primary connection plate are fastened on the sides oil conservater P1, P2 respectively, according to serial or parallel connection needs, dress on primary connection plate
Changing-over plate.
2. it is according to claim 1 can changing-over low current than inverted type current transformer first winding structure, feature
It is：Primary Conductor 1 is two sections of annealed copper strand wires being wrapped in device, and it is one that annealed copper strand wire, which often passes through device body ring portion once,
Circle repeatedly passes through device body ring portion to form multi-turn structure.
3. it is according to claim 1 can changing-over low current than inverted type current transformer first winding structure, feature
It is：Primary connection plate includes conducting rod and epoxy resin, and using epoxy resin pouring structure, i.e. two conducting rods pass through ring
Oxygen resin-cast formed two conducting rods be arranged parallel, the integral structure of mutually insulated.
4. it is according to claim 3 can changing-over low current than inverted type current transformer first winding structure, feature
It is：Conducting rod is process by aluminium bar, the one end being placed in current transformer oil conservater be processed into it is plate, and in the plane
The hole being connect with each end of annealed copper strand wire is bored, the other end being placed in air need to be bored in its end face center position to be connected with each changing-over plate
The threaded hole connect.
5. it is according to claim 1 or 4 can changing-over low current than inverted type current transformer first winding structure, it is special
Sign is：Changing-over plate includes the first~tri- changing-over plate, wherein the first changing-over plate is linear type plate, the second changing-over plate is L shaped plate, the
Three changing-over plates are right angle V shaped slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820601006.8U CN208045302U (en) | 2018-04-25 | 2018-04-25 | It is a kind of can changing-over low current than inverted type current transformer first winding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820601006.8U CN208045302U (en) | 2018-04-25 | 2018-04-25 | It is a kind of can changing-over low current than inverted type current transformer first winding structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208045302U true CN208045302U (en) | 2018-11-02 |
Family
ID=63927981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820601006.8U Active CN208045302U (en) | 2018-04-25 | 2018-04-25 | It is a kind of can changing-over low current than inverted type current transformer first winding structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208045302U (en) |
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2018
- 2018-04-25 CN CN201820601006.8U patent/CN208045302U/en active Active
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