CN202871539U - Power transformer with detection output - Google Patents
Power transformer with detection output Download PDFInfo
- Publication number
- CN202871539U CN202871539U CN 201220477577 CN201220477577U CN202871539U CN 202871539 U CN202871539 U CN 202871539U CN 201220477577 CN201220477577 CN 201220477577 CN 201220477577 U CN201220477577 U CN 201220477577U CN 202871539 U CN202871539 U CN 202871539U
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- power transformer
- iron core
- detection
- transformer
- winding
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Abstract
The utility model relates to a power transformer with detection output and is used for various industrial equipment, light-emitting diode (LED) lamps and airport electric equipment. In a constant current or constant voltage system, a set of detection system and an extra winding do not need to be added additionally, and the power transformer with the detection output detects primary or secondary current or voltage. The power transformer with the detection output comprises a coil of a primary winding, a coil of a secondary winding and an iron core of the power transformer, wherein an iron core of a detection level which is coaxial with the iron core of the power transformer and a coil of a winding of the detection level form one more detection level. In the constant current or constant voltage system, a set of detection system or a mutual inductor or a transformer does not needed to be additionally added to detect electric performance, and simultaneously, the power transformer does not need an extra winding. The power transformer with the detection output is not limited by a shape or a frame and can be in shapes, such as an E shape, an I shape, an R shape and a ring shape. A detection object can be primary or secondary, and the detection object can be current or voltage. The detection level can simultaneously detect input and output and the current and the voltage of the power transformer.
Description
Technical field
The utility model relates to a kind of power transformer, belongs to household electrical appliance, industrial production, power electronics and airport light fixture electric product, and especially a kind of power transformer with detecting output is used in all types of industries equipment, LED light fixture and airport electric equipment.
Background technology
The structure of transformer mainly is to be begun by an iron core, twines one group or above coil at iron core, increases whereby its inductance value.Take doublewound transformer as example, wherein an end-coil winding is as input, usefulness for input voltage, be called armature winding (primary winding), the other end is then as output, making the output voltage purposes, and connect load, be referred to as secondary winding (secondary windings).Usually the iron core of transformer builds up mainly with the thin silicon steel plates of E word and I font.
The operation principle of transformer is: when an alternating voltage (V1) is supplied to the coil of armature winding, because the intensity of alternating current and polarity are ceaselessly positive and negative alternately variations, so the magnetic line of force number that the coil of armature winding produces does not stop to change yet.Because the continuous variation of magnetic field intensity impels the other end coil that is wrapped on the same iron core to produce induced electromotive force V2.Arbitrary moment, coil and the magnetic flux of the coil of armature winding by armature winding was all identical, thus in every circle coil the induced electromotive force of giving birth to all identical.
Existing transformer is pure power conversion electrical installation, all electric performance tests all need to detect by the current-voltage transformer of elementary or secondary interpolation, in the stricter occasion of some space requirement, this method is subject to very large restriction, can only be with instrument transformer away from transformer, be positioned over other spaces, this can produce larger adverse effect to the result who detects.
Voltage transformer can be said, is a special transformer that is defined structure and type of service, briefly is exactly " detecting element ".Voltage transformer is a transformer that band is unshakable in one's determination.It mainly is comprised of first and second coil, iron core and insulation.When a winding applies a voltage U 1, in iron core, just produce a magnetic flux φ, according to the law of electromagnetic induction, then in secondary winding, just produce a secondary voltage U2.Change once or the number of turn of secondary winding, can produce different primary voltages and secondary voltage ratio, this just can form the voltage transformer of different voltage ratios.Voltage transformer converts high voltage to low-voltage in proportion, i.e. 100V, and the voltage transformer primary side is connected on primary system, secondary side joint measuring instrument, relaying protection etc.; Mainly be (capacitance type potential transformer is widely used) of electromagnetic type, other has non electromagnetic, such as electronic type, photoelectric type.
The effect of voltage transformer is: high voltage in proportion relation transformation become 100V or more low-grade standard secondary voltage, for protection, metering, metering device.Simultaneously, use voltage transformer high voltage and electrician can be isolated.Although voltage transformer also is the equipment according to electromagnetic induction principle work, its electromagnetic structure relation is compared just in time opposite with current transformer.The voltage device secondary circuit is the high impedance loop, and the size of secondary current is determined by the impedance in loop.When the secondary load impedance reduced, secondary current increased.The purposes of current transformer is linear DC voltage signal by impedance with current transformation, for measuring circuit.
The utility model content
Technical problem to be solved in the utility model is: a kind of power transformer with detecting output is provided, by different magnetic materials is integrated in the same transformer, in the situation that does not increase winding, make transformer in power output, can also detection of primary and secondary electric current, voltage.
The utility model solves the problems of the technologies described above by following technical proposals: a kind of power transformer with detecting output, comprise the coil of armature winding, the coil of secondary winding and the iron core of power transformer, characteristics are: with the coaxial detection level that is provided with the iron core 5 of detection level and detects coil 3 formations of level winding of the iron core of power transformer, in constant current or constant-voltage system, need not extra interpolation one cover detection system or instrument transformer, transformer, detect electric property, transformer also need not extra winding simultaneously.Detected object can be elementary also can be secondary curtage.
On the such scheme basis, transformer is not limited by shape or skeleton, and the shape of above-mentioned iron core can be E font, I font, R font, annular etc.
On the such scheme basis, described detection level can a plurality ofly be used, and detects simultaneously input, power output and electric current, the voltage of this power transformer.
The iron core 5 of the iron core of described power transformer and detection level is superposeed by silicon steel sheet, two groups of iron cores are can magnetic different as electromagnetic material, being about to different magnetic materials is integrated in the same transformer, in the situation that does not increase winding, make transformer in power output, can also detection of primary and secondary electric current, voltage.
The beneficial effects of the utility model are:
1) in constant current or constant-voltage system, need not extra interpolation one cover detection system or instrument transformer, transformer, detect electric property, transformer also need not extra winding simultaneously;
2) transformer is not limited by shape or skeleton, can be the shapes such as E, I, R, annular;
3) detected object can be elementary also can be secondary; Detected object can be that electric current also can be voltage;
4) detect input and output and the current/voltage that level can detect this power transformer simultaneously.
Description of drawings
Fig. 1 is the structural representation that the utility model band detects the power transformer of output;
Number in the figure
The coil of 1-armature winding; The coil of 2-secondary winding;
The coil of 3-detection level winding;
The iron core of 4--power transformer;
The iron core of 5-detection level.
Embodiment
Seeing also Fig. 1 is the structural representation that the utility model band detects the power transformer of output, a kind of power transformer with detecting output, comprise the coil 1 of armature winding, the coil 2 of secondary winding and the iron core 4 of power transformer, characteristics are and the iron core 4 coaxial coils 3 that are provided with the iron core 5 of detection level and detect the level winding of power transformer that the formation band detects the power transformer of output.
On the such scheme basis, above-mentioned iron core be shaped as E font, I font, R font, annular etc.
The iron core 5 of the iron core 4 of described power transformer and detection level is superposeed by silicon steel sheet, two groups of iron cores are can magnetic different as electromagnetic material, being about to different magnetic materials is integrated in the same transformer, in the situation that does not increase winding, make transformer in power output, can also detection of primary and secondary electric current, voltage.
The utility model need not extra interpolation one cover detection system or instrument transformer, transformer in constant current or constant-voltage system, detect electric property, and transformer also need not extra winding simultaneously.
Claims (3)
1. one kind with the power transformer that detects output, in constant current or constant-voltage system, need not extra cover detection system and the extra winding that add, detection of primary or secondary curtage, comprise the coil (1) of armature winding, the coil (2) of secondary winding and the iron core (4) of power transformer, it is characterized in that: with the coaxial iron core (5) that detects level that is provided with of the iron core (4) of power transformer, the coil (3) of the iron core (5) of described detection level and detection level winding consists of a detection level.
2. band according to claim 1 detects the power transformer of output, it is characterized in that: described iron core (4,5) be shaped as E font, I font, R font or annular.
3. band according to claim 1 detects the power transformer of output, it is characterized in that: the iron core (5) of the iron core of described power transformer (4) and detection level is by the silicon steel sheet stack, and the electro permanent magnetic of two groups of iron cores is different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220477577 CN202871539U (en) | 2012-09-19 | 2012-09-19 | Power transformer with detection output |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220477577 CN202871539U (en) | 2012-09-19 | 2012-09-19 | Power transformer with detection output |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202871539U true CN202871539U (en) | 2013-04-10 |
Family
ID=48038234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220477577 Expired - Fee Related CN202871539U (en) | 2012-09-19 | 2012-09-19 | Power transformer with detection output |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202871539U (en) |
-
2012
- 2012-09-19 CN CN 201220477577 patent/CN202871539U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20130919 |