CN109494052A - A kind of testing transformer - Google Patents
A kind of testing transformer Download PDFInfo
- Publication number
- CN109494052A CN109494052A CN201811637686.XA CN201811637686A CN109494052A CN 109494052 A CN109494052 A CN 109494052A CN 201811637686 A CN201811637686 A CN 201811637686A CN 109494052 A CN109494052 A CN 109494052A
- Authority
- CN
- China
- Prior art keywords
- armature winding
- winding
- core limb
- secondary windings
- around
- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
A kind of testing transformer, including body, the first armature winding, the second armature winding, secondary windings, body is the iron core of single-phase four rod structure, single-phase four column includes the other column and centrally located the first core limb and the second core limb of two sides, is successively cased with the first armature winding, secondary windings, the second armature winding from inside to outside on the first core limb and the second core limb；Winding on first core limb around to the winding on the second core limb around to opposite each other；Wherein, the first armature winding, the second armature winding on same core limb around to must and secondary windings around to opposite, the position for keeping winding upper and lower end parts region wire turn diluter is circumferentially in same position, guarantees the ampere-turn equilibrium between the first armature winding, the second armature winding and secondary windings.The present invention improves winding and bears high current impulse withstanding capability, realize single machine body structure of testing transformer, the weight, volume and manufacturing cost of whole transformer is greatly reduced by adjusting winding arrangement.
Description
Technical field
The invention belongs to circuit fields, and in particular to a kind of testing transformer.
Background technique
The ability of short circuit current is born for verifying electric product, testing agency can carry out the test of heavy current to electric product
Verifying, cranking test transformer are exactly to provide the equipment of required voltage, electric current for this kind of test.Its armature winding and hair
Motor connection, secondary windings are connected with test product, and the constant-voltage transition by generator output is test required voltage, and is exported
The test current (tens kA) needed.
The operating condition of big electric test transformer would generally be the heavy current test of 1 day tens times, even up to a hundred times, therefore
Testing transformer itself have to have the long-term ability for bearing heavy current impact, this is that testing transformer design produces maximum difficulty
Point.Be guarantee test transformer with it is enough bear heavy current impact ability, at present through frequently with structure be whole
Transformer is made of two identical and independent bodies 1, bodies 2, and body is placed in the same fuel tank.Each body is adopted
With single-phase two column " mouth " font core construction, be successively cased with from inside to outside on core limb 1 and core limb 2 armature winding 1, it is secondary around
Group and armature winding 2.Armature winding 1 on same core limb and armature winding 2 are connected in series, on two core limbs it is primary around
It is drawn after group is in parallel；It is drawn after secondary windings series connection on two core limbs.Two bodies draw four primary winding terminals altogether
A1, x1, a2, x2 and four secondary terminals A1, X1, A2, X2；By external series and parallel connection realize different voltage,
Electric current output.
It is that primary, secondary windings is distributed across four iron by the purpose that transformer is divided into two identical bodies
On stem, reduce the electric current for flowing through each winding, the electric power for bearing winding is smaller, so that it is big to guarantee that whole transformer is born
The ability of rush of current.The disadvantage is that the weight weight of whole transformer, volume is big, and manufacturing cost is high, less economical.
It is not improve winding using effective technical measures to bear heavy current impact using the reason of double body structure
Ability, can only be arranged apart by winding.
Summary of the invention
The present invention is in view of the above-mentioned problems, propose a kind of testing transformer, using raising winding receiving high current impulse withstanding capability
Technical solution, realize single machine body structure, to reduce the weight and volume of transformer, reduce transformer manufacturing cost.
A kind of testing transformer, including body, the first armature winding, the second armature winding, secondary windings；
The body is the iron core of single-phase four rod structure, and single-phase four column includes the other column and centrally located the of two sides
One core limb and the second core limb, be successively cased on first core limb and the second core limb from inside to outside first it is primary around
Group, secondary windings, the second armature winding；Winding on first core limb around to the winding on the second core limb around to mutual
It is opposite；
Wherein, the first armature winding on same core limb, the second armature winding around to must and secondary windings around to phase
Instead, the position for making winding upper and lower end parts region wire turn diluter is circumferentially in same position, guarantees the first armature winding, second
Ampere-turn equilibrium between armature winding and secondary windings；
Four primary winding terminals are drawn after first armature winding and the second armature winding are in parallel, wherein in the first iron core
Two primary winding terminals a1 and x1 are drawn on column, and two primary winding terminals a2 and x2 are drawn on the second core limb；
The secondary windings draws two secondary terminals A1 and X1 on the first core limb, and the secondary windings is in the second iron
Two secondary terminals A2 and X2 are drawn on stem；
The primary winding terminals are connected by external series and parallel with secondary terminal and realize that different voltage, electric current are defeated
Out.
Further, the first armature winding, the second armature winding be it is left around to when, secondary windings be necessary for it is right around to；Or
First armature winding, the second armature winding be it is right around to when, secondary windings be necessary for it is left around to.
Further, the first armature winding on same core limb and the second armature winding must be in parallel, same core limb
On the first armature winding must phase to the short-circuit impedance of secondary windings to the short-circuit impedance of secondary windings and the second armature winding
Deng, the distance between the first armature winding and secondary windings, the second armature winding and secondary windings are adjusted for this, guarantee
Short-circuit impedance between the two is equal.
Further, the testing transformer is whole as in fuel tank.
The present invention improves the ability that winding bears heavy current impact, realizes test transformation by adjusting winding arrangement
Single machine body structure of device significantly reduces the weight, volume and manufacturing cost of whole transformer.
Detailed description of the invention
Fig. 1 is the overall structure figure of testing transformer of the present invention.
Fig. 2 is the knot of the diluter position of the winding upper and lower end parts region wire turn of testing transformer of the present invention circumferentially
Structure schematic diagram.
Specific embodiment
Technical solution of the present invention is described in further detail with reference to the accompanying drawings of the specification.
Referring to Fig.1, a kind of testing transformer, including body, the first armature winding, the second armature winding, secondary windings.
The body is the iron core of single-phase four rod structure, and single-phase four column includes the other columns of two sides and centrally located
The first core limb and the second core limb, the first primary is successively cased on first core limb and the second core limb from inside to outside
Winding, secondary windings, the second armature winding.Winding on first core limb around to the winding on the second core limb around to
It is opposite each other.
Wherein, the first armature winding on same core limb, the second armature winding around to must and secondary windings around
To on the contrary, specifically, the first armature winding, the second armature winding be it is left around to when, secondary windings be necessary for it is right around to；Or first
Armature winding, the second armature winding be it is right around to when, secondary windings be necessary for it is left around to.Make winding upper and lower end parts region line in this way
The diluter position of circle is circumferentially in same position, as shown in Fig. 2, guaranteeing the first armature winding, the second armature winding and secondary
Ampere-turn equilibrium between grade winding.
Four primary winding terminals are drawn after first armature winding and the second armature winding are in parallel, wherein first
Two primary winding terminals a1 and x1 are drawn on core limb, and two primary winding terminals a2 and x2 are drawn on the second core limb.
The secondary windings draws two secondary terminals A1 and X1 on the first core limb, and the secondary windings is
Two secondary terminals A2 and X2 are drawn on two core limbs.
The primary winding terminals are connected by external series and parallel with secondary terminal and realize different voltage, electricity
Stream output.
The first armature winding and the second armature winding on same core limb must be in parallel, at the beginning of first on same core limb
Grade winding must be equal to the short-circuit impedance of secondary windings to the short-circuit impedance of secondary windings and the second armature winding, for this to the
The distance between one armature winding and secondary windings, the second armature winding and secondary windings are adjusted, and are guaranteed between the two
Short-circuit impedance is equal.
The foregoing is merely better embodiment of the invention, protection scope of the present invention is not with above embodiment
Limit, as long as those of ordinary skill in the art's equivalent modification or variation made by disclosure according to the present invention, should all be included in power
In the protection scope recorded in sharp claim.
Claims (3)
1. a kind of testing transformer, including body, the first armature winding, the second armature winding, secondary windings, it is characterised in that:
The body is the iron core of single-phase four rod structure, and single-phase four column includes the other column and centrally located the of two sides
One core limb and the second core limb, be successively cased on first core limb and the second core limb from inside to outside first it is primary around
Group, secondary windings, the second armature winding；Winding on first core limb around to the winding on the second core limb around to mutual
It is opposite；
Wherein, the first armature winding on same core limb, the second armature winding around to must and secondary windings around to phase
Instead, the position for making winding upper and lower end parts region wire turn diluter is circumferentially in same position, guarantees the first armature winding, second
Ampere-turn equilibrium between armature winding and secondary windings；
Four primary winding terminals are drawn after first armature winding and the second armature winding are in parallel, wherein in the first iron core
Two primary winding terminals a1 and x1 are drawn on column, and two primary winding terminals a2 and x2 are drawn on the second core limb；
The secondary windings draws two secondary terminals A1 and X1 on the first core limb, and the secondary windings is in the second iron
Two secondary terminals A2 and X2 are drawn on stem；
The primary winding terminals are connected by external series and parallel with secondary terminal and realize that different voltage, electric current are defeated
Out.
2. a kind of testing transformer according to claim 1, it is characterised in that: the first armature winding, the second armature winding
For a left side around to when, secondary windings be necessary for it is right around to；Or first armature winding, the second armature winding be it is right around to when, it is secondary around
Group be necessary for it is left around to.
3. a kind of testing transformer according to claim 1, it is characterised in that: the first armature winding on same core limb
Must be in parallel with the second armature winding, the first armature winding on same core limb is at the beginning of the short-circuit impedance of secondary windings and second
Grade winding must be equal to the short-circuit impedance of secondary windings, for this to the first armature winding and secondary windings, the second armature winding
The distance between secondary windings is adjusted, and guarantees that short-circuit impedance between the two is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811637686.XA CN109494052A (en) | 2018-12-29 | 2018-12-29 | A kind of testing transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811637686.XA CN109494052A (en) | 2018-12-29 | 2018-12-29 | A kind of testing transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109494052A true CN109494052A (en) | 2019-03-19 |
Family
ID=65713455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811637686.XA Withdrawn CN109494052A (en) | 2018-12-29 | 2018-12-29 | A kind of testing transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109494052A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110993258A (en) * | 2019-12-02 | 2020-04-10 | 永济优耐特绝缘材料有限责任公司 | High-impedance single-phase boosting dry-type transformer and manufacturing method thereof |
| CN113632362A (en) * | 2019-03-26 | 2021-11-09 | 松下知识产权经营株式会社 | Transformer and switching power supply device |
-
2018
- 2018-12-29 CN CN201811637686.XA patent/CN109494052A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113632362A (en) * | 2019-03-26 | 2021-11-09 | 松下知识产权经营株式会社 | Transformer and switching power supply device |
| CN110993258A (en) * | 2019-12-02 | 2020-04-10 | 永济优耐特绝缘材料有限责任公司 | High-impedance single-phase boosting dry-type transformer and manufacturing method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190319 |