CN208767132U - A kind of mutual inductor secondary terminals ground structure - Google Patents
A kind of mutual inductor secondary terminals ground structure Download PDFInfo
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- CN208767132U CN208767132U CN201821534785.0U CN201821534785U CN208767132U CN 208767132 U CN208767132 U CN 208767132U CN 201821534785 U CN201821534785 U CN 201821534785U CN 208767132 U CN208767132 U CN 208767132U
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- ground strip
- connection piece
- mutual inductor
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- ground
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Abstract
The utility model discloses a kind of mutual inductor secondary terminals ground structures, belong to transformer technical field, it is characterised in that: include at least: the secondary connection piece connecting with secondary winding；Secondary ground strip；For connecting the secondary earthing screw of above-mentioned secondary connection piece and above-mentioned secondary ground strip；Insulation spacer is folded between the secondary connection piece and secondary ground strip；Inserts is installed, the installation inserts is connect by conducting wire with secondary ground strip；The secondary connection piece and secondary ground strip are respectively N number of, and N is the natural number greater than 1；The secondary ground strip is made of copper；The insulation spacer is made of epoxy plate.By using above-mentioned technical proposal, the mutual inductor in the utility model uses direct grounding way, and secondary connection sheet is directly mounted inside pour mass when die-filling, and when use is mounted directly secondary earthing screw.
Description
Technical field
The utility model belongs to transformer technical field more particularly to a kind of mutual inductor secondary terminals ground structure.
Background technique
It is well known that mutual inductor (instrument transformer) is also known as instrument transformer, it is current transformer
With the general designation of voltage transformer.High voltage can be become to low-voltage, high current becomes low current, for measuring or protecting system.
Its function mainly by high voltage or high current scaling transformation at normal low voltage (100V) or standard small electric current (5A or 1A,
Refer both to rated value), to realize standardization, the miniaturization of measuring instrumentss, protection equipment and automatic control equipment.Mutual inductor simultaneously
It may further be used to separate high-voltage system, to guarantee the safety of the person and equipment.Currently, current transformer require each group it is secondary around
Group must have one point earth, and the big N-terminal of phase-to-ground voltage transformer request and each group of secondary winding must have one point earth, traditional mutual inductance
The winding earth of device is outer linking, is realized by pouring the secondary connection piece outpoured and connection sheet and earthing screw.When in use,
Client needs another ground line, causes operating procedure more.
Utility model content
In view of the drawbacks of the prior art, the utility model provides a kind of efficiently mutual inductor secondary terminals easy to use and operate
Ground structure.
Used by the utility model the specific technical proposal is:
A kind of mutual inductor secondary terminals ground structure, includes at least:
The secondary connection piece (2) being connect with secondary winding (7)；
Secondary ground strip (4)；
For connecting the secondary earthing screw (1) of secondary connection piece (2) and secondary ground strip (4)；In the secondary connection
Insulation spacer (3) are folded between piece (2) and secondary ground strip (4)；
It installs inserts (6), the installation inserts (6) is connect by conducting wire (5) with secondary ground strip (4).
Further, the secondary connection piece (2) and secondary ground strip (4) are respectively N number of, and N is the natural number greater than 1.
Further, the secondary ground strip (4) is made of copper.
Further, the insulation spacer (3) is made of epoxy plate.
The advantages of the utility model and good effect are as follows:
By using above-mentioned technical proposal, the utility model is had the following technical effect that:
Mutual inductor in the utility model uses direct grounding way, is directly mounted at secondary connection sheet when die-filling and pours
Inside injection body, when use, is mounted directly secondary earthing screw.The utility model uses above-mentioned secondary ground strip, secondary connection
Piece material is copper material.Secondary ground strip is directly separated by with attachment spacers with secondary connection piece, and insulation spacer is that guarantee is secondary resistance to
Pressure and it is indeformable require material using epoxy plate, size and the connection sheet of insulation spacer match, can both meet and be directly grounded
It is required that being able to satisfy the resistance to pressure request between winding and ground again.Installation method is simple: only needing to install earthing screw when Product Assembly
In the corresponding ground hole of secondary connection piece.
Detailed description of the invention
Fig. 1 is the structure chart of utility model preferred embodiment.
Wherein: 1, secondary earthing screw；2, secondary connection piece；3, insulation spacer；4, secondary ground strip；5, conducting wire；6, pacify
Assembly part；7, secondary winding.
Specific embodiment
For the invention, features and effects that can further appreciate that the utility model, the following examples are hereby given, and cooperates
Detailed description are as follows for attached drawing.
The structure of the utility model is explained in detail with reference to the accompanying drawing.
Please refer to Fig. 1: a kind of mutual inductor secondary terminals ground structure, comprising:
The secondary connection piece 2 being connect with secondary winding 7；
Secondary ground strip 4；
For connecting the secondary earthing screw 1 of secondary connection piece 2 and secondary ground strip 4；In the secondary connection piece 2 and two
Insulation spacer 3 is folded between secondary ground strip 4；
Inserts 6 is installed, the installation inserts 6 is connect by conducting wire 5 with secondary ground strip 4.
Preferably, the secondary connection piece 2 and secondary ground strip 4 are respectively N number of, N is the natural number greater than 1.
Preferably, the secondary ground strip 4 is made of copper.
Preferably, the insulation spacer 3 is made of epoxy plate.
Secondary ground strip is connected with installation inserts by conducting wire, be grounded secondary ground strip can by mounting base.It is secondary
It is separated between ground strip and secondary connection piece using insulation spacer, guarantee is not connected to.Client in use, with secondary earthing screw by
Arrow direction is screwed into, and can be thus grounded with secondary ground strip connection.Client no longer needs separately to be grounded.
Secondary connection sheet is directly mounted inside pour mass when die-filling, when use is mounted directly secondary earthing screw i.e.
It can.The utility model uses above-mentioned secondary ground strip, and secondary connection sheet material is copper material.Secondary ground strip and secondary connection piece
Directly be separated by with attachment spacers, insulation spacer be guarantee secondary pressure resistance and it is indeformable require material using epoxy plate, felt pad
The size of piece matches with connection sheet, can not only meet the resistance to pressure request for being directly grounded and requiring but also be able to satisfy between winding and ground.Peace
Dress method is simple: only needing for earthing screw to be installed on secondary connection piece corresponding ground hole when Product Assembly.
The above is only the preferred embodiment to the utility model, is not made in any form to the utility model
Limitation, it is all according to the technical essence of the utility model any simple modification made to the above embodiment, equivalent variations with
Modification, is all within the scope of the technical scheme of the utility model.
Claims (4)
1. a kind of mutual inductor secondary terminals ground structure, it is characterised in that: include at least:
The secondary connection piece (2) being connect with secondary winding (7)；
Secondary ground strip (4)；
For connecting the secondary earthing screw (1) of secondary connection piece (2) and secondary ground strip (4)；In the secondary connection piece (2)
Insulation spacer (3) are folded between secondary ground strip (4)；
It installs inserts (6), the installation inserts (6) is connect by conducting wire (5) with secondary ground strip (4).
2. mutual inductor secondary terminals ground structure according to claim 1, which is characterized in that the secondary connection piece (2)
Respectively N number of with secondary ground strip (4), N is the natural number greater than 1.
3. mutual inductor secondary terminals ground structure according to claim 2, which is characterized in that the secondary ground strip (4)
It is made of copper.
4. mutual inductor secondary terminals ground structure according to claim 1-3, which is characterized in that the felt pad
Piece (3) is made of epoxy plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821534785.0U CN208767132U (en) | 2018-09-19 | 2018-09-19 | A kind of mutual inductor secondary terminals ground structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821534785.0U CN208767132U (en) | 2018-09-19 | 2018-09-19 | A kind of mutual inductor secondary terminals ground structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208767132U true CN208767132U (en) | 2019-04-19 |
Family
ID=66136923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821534785.0U Active CN208767132U (en) | 2018-09-19 | 2018-09-19 | A kind of mutual inductor secondary terminals ground structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208767132U (en) |
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2018
- 2018-09-19 CN CN201821534785.0U patent/CN208767132U/en active Active
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