CN202372542U - Simulated high-power loader - Google Patents
Simulated high-power loader Download PDFInfo
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- CN202372542U CN202372542U CN2011205092872U CN201120509287U CN202372542U CN 202372542 U CN202372542 U CN 202372542U CN 2011205092872 U CN2011205092872 U CN 2011205092872U CN 201120509287 U CN201120509287 U CN 201120509287U CN 202372542 U CN202372542 U CN 202372542U
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Abstract
The utility model discloses a simulated high-power loader, which comprises an alternating-current voltage output circuit and an alternating-current current output loop which are connected with commercial power, wherein the alternating-current voltage output circuit comprises a first self-coupling voltage regulator and an alternating-current voltage output end; the live wire end of the commercial power is connected between coils of the first self-coupling voltage regulator; the alternating-current voltage output end slides on the coils of the first self-coupling voltage regulator; the alternating-current current output loop comprises a second self-coupling voltage regulator, a current transformer and a load; the live wire end of the commercial power is connected between coils of the second self-coupling voltage regulator; the input end of the current transformer slides on the coils of the second self-coupling voltage regulator; and the load spans between the output end of the current transformer and a zero line of the commercial power. The voltage output end and the current output end of the simulated high-power loader can slide on the self-coupling voltage regulators, so that continuously-adjustable output current and voltage are realized; the load can be realized by adopting small resistance, so that energy is saved; and moreover, a circuit structure is simple, and the testing cost is reduced.
Description
Technical field
The utility model relates to a kind of simulation high power load machine, belongs to the electronic product technical field of measurement and test.
Background technology
In the power test process, the high power load machine is that electric energy meter provides big electric current when doing on-load running test, and high voltage generally all to be checking table or portable checking table provide, it costs an arm and a leg, complex structure, high, the complicated operation of failure rate.Be in the properties of product test process in factory, when need adopting the high power load machine to be product test such as switch big electric current, its required high voltage being provided generally then is to do load with high-power resistance; Shown in accompanying drawing 1,, adjust the required electric current of test through the break-make of control K1-K5; High-power resistance R11 is adopted in load, and high voltage is added on the resistance R 11 with big electric current, causes its energy consumption very high; And adjust the size of electric current owing to the break-make that is control K1-K5; So electric current can not change continuously, the electric current adjustability is poor, can not be fit to the test of all products.
The utility model content
The utility model provides a kind of simple in structure, continuous adjustable and energy-conservation simulation high power load machine of voltage and current in order to overcome the deficiency that prior art exists.
The utility model can be achieved through taking following technical scheme:
A kind of simulation high power load machine; Comprise the alternating voltage output circuit and the alternating current output loop that are electrically connected with the city; Said alternating voltage output circuit comprises first from even pressure regulator and ac voltage output; The live wire of said civil power is terminated at first between the coil of even pressure regulator, and ac voltage output slides on the coil of even pressure regulator first; Said alternating current output loop comprises second from even pressure regulator, current transformer and load; The live wire of said civil power is terminated at second between the coil of even pressure regulator; The input end of said current transformer slides on the coil of even pressure regulator second, and the load cross-over connection is between the zero line of the output terminal of current transformer and civil power.
On the basis of the above, the said load of the utility model is a resistance.
The utility model also comprises reometer and voltage table, and said voltage table cross-over connection is between the zero line of ac voltage output and civil power, and said reometer is connected between the output terminal and load of current transformer.
Compared with prior art; The beneficial effect of the utility model is: the utility model is equipped with from even pressure regulator in alternating voltage output circuit and alternating current output circuit, and all can on even pressure regulator, sliding of voltage output end and electric current output can make the electric current of output and voltage adjustable continuously through sliding; Load adopts less resistive to realize; Practiced thrift the energy, and circuit structure is simple, has reduced testing cost.
Description of drawings
Accompanying drawing 1 is the circuit theory diagrams of prior art;
Accompanying drawing 2 is circuit theory diagrams of the simulation high power load machine of the utility model.
Embodiment
Below in conjunction with accompanying drawing the most preferred embodiment of the utility model is described in detail.
As shown in Figure 2, the utility model simulation high power load machine comprises civil power AC; With the alternating voltage output circuit 1 that civil power AC electrically connects, alternating voltage output circuit 1 comprises first from even pressure regulator T1, ac voltage output 11; The live wire end L of said civil power is connected to first coil from even pressure regulator T1, and (both ends of this coil are respectively A point and B point; Wherein the B point is connected on the zero line side N of civil power, and the A point suspends) between, i.e. C point; Ac voltage output 11 is connected in first from the D of even pressure regulator T1 point, and the D point slides between A point and B point.Be equivalent to first the elementary winding between C point and the B point from even pressure regulator T1; Be the input of primary power, be equivalent to first the secondary winding between D point and the B point, i.e. the output of alternating voltage from even pressure regulator T1; According to the turn ratio of the two; Can obtain the output of different alternating voltages, owing to the D point can be slided continuously, so the output valve of the alternating voltage that obtains equally also is continuous between A point and B point.
Alternating current output circuit 2 with civil power AC electric connection; Alternating current output circuit 2 comprises second from even pressure regulator T2, current transformer T3, resistance R 12; The live wire end L of civil power is connected between second coil from even pressure regulator T2 (both ends of this coil are respectively E point and F point, and wherein the F point is connected on the zero line side N of civil power, and the E point suspends); It is the G point; The input end of current transformer T3 is connected to second from the H of even pressure regulator T2 point, and wherein the H point slides between E point and the F point, and load R12 cross-over connection is between the zero line N of the output terminal of current transformer T3 and civil power.Be equivalent to second the elementary winding between G point and the F point from even pressure regulator T2; It is the input of primary power; Be equivalent to second secondary winding from even pressure regulator T2 between H point and the B point, i.e. the input of current transformer T3 is according to the turn ratio of the two; Can obtain the input value of current transformer T3; Because the H point can be slided between E point and F point continuously, so the input value of the current transformer T3 that obtains equally also is continuous, the output that after current transformer T3 transformation, is added in the alternating current on the resistance R 12 then also is continuous.
The utility model also comprises reometer and voltage table, and the voltage table cross-over connection is between the zero line N of ac voltage output 11 and civil power, and reometer is connected between the output terminal and resistance R 12 of current transformer T3.
According to following computing formula:
With electric energy meter load being provided is example, and the voltage that is loaded into electric energy meter is 220V, electric current 40A, and power factor is 1 o'clock; The then actual bearing power that provides is: 220v*0.05A+0.2V*40A=19W.(0.05A is the voltage circuit actual current here, and 0.2V is the actual voltage of current return, records by exchanging a small amount of journey voltage table and reometer).
If with the high power load case (being circuit structure shown in the accompanying drawing 1) of current trend voltage being provided is 220V, electric current 40A, when power factor was 1 load, the then actual bearing power that provides was 220V*40A*1=8800W.
Save power: 8800W-19W=8781W
Reach a conclusion thus: the utility model has been practiced thrift the energy greatly.And the utility model circuit structure is very simple, the less production cost of load machine, thus reduced testing cost on the whole.
The above person of thought; Be merely the preferred embodiment of the utility model; When the scope that can not limit the utility model enforcement with this; The content of promptly being put down in writing according to the utility model claim and utility model instructions has generally been done simple equivalent and has been changed and modification, all still belongs within the utility model claim institute covering scope.In addition, summary part and title only are the usefulness that is used for assisting the patent document search, are not the interest field that is used for limiting the utility model.
Claims (3)
1. simulation high power load machine; It is characterized in that comprising the alternating voltage output circuit and the alternating current output loop that are electrically connected with the city; Said alternating voltage output circuit comprises first from even pressure regulator and ac voltage output; The live wire of said civil power is terminated at first between the coil of even pressure regulator, and ac voltage output slides on the coil of even pressure regulator first; Said alternating current output loop comprises second from even pressure regulator, current transformer and load; The live wire of said civil power is terminated at second between the coil of even pressure regulator; The input end of said current transformer slides on the coil of even pressure regulator second, and the load cross-over connection is between the zero line of the output terminal of current transformer and civil power.
2. simulation high power load machine according to claim 1 is characterized in that said load is a resistance.
3. simulation high power load machine according to claim 1 and 2; It is characterized in that also comprising reometer and voltage table; Said voltage table cross-over connection is between the zero line of ac voltage output and civil power, and said reometer is connected between the output terminal and load of current transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205092872U CN202372542U (en) | 2011-12-08 | 2011-12-08 | Simulated high-power loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205092872U CN202372542U (en) | 2011-12-08 | 2011-12-08 | Simulated high-power loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202372542U true CN202372542U (en) | 2012-08-08 |
Family
ID=46596239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205092872U Expired - Fee Related CN202372542U (en) | 2011-12-08 | 2011-12-08 | Simulated high-power loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202372542U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444584A (en) * | 2018-11-09 | 2019-03-08 | 广州市微龙电子科技有限公司 | A kind of burn in test circuit of charging gun, device and method |
| CN110716084A (en) * | 2019-09-10 | 2020-01-21 | 武汉佐盈森科技发展有限公司 | Power test load device of capacitance electrode output mode and test method thereof |
-
2011
- 2011-12-08 CN CN2011205092872U patent/CN202372542U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444584A (en) * | 2018-11-09 | 2019-03-08 | 广州市微龙电子科技有限公司 | A kind of burn in test circuit of charging gun, device and method |
| CN110716084A (en) * | 2019-09-10 | 2020-01-21 | 武汉佐盈森科技发展有限公司 | Power test load device of capacitance electrode output mode and test method thereof |
| CN110716084B (en) * | 2019-09-10 | 2021-07-13 | 武汉佐盈森科技发展有限公司 | Power test load device and method for testing output power of short wave therapeutic apparatus |
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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: 20120808 Termination date: 20131208 |