CN206431218U - A kind of three-phase current test system - Google Patents
A kind of three-phase current test system Download PDFInfo
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- CN206431218U CN206431218U CN201720096705.7U CN201720096705U CN206431218U CN 206431218 U CN206431218 U CN 206431218U CN 201720096705 U CN201720096705 U CN 201720096705U CN 206431218 U CN206431218 U CN 206431218U
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Abstract
The utility model is related to communication technical field, discloses a kind of three-phase current test system.The three-phase current test system includes：Three phase mains, at least two device under tests, load box and detector；The output end of any two-phase in three phase mains connects the input of two device under tests respectively, and the output end of each device under test connects a load box, and different device under tests connects different load boxs, and the quantity of load box is more than or equal to the quantity of device under test；Detector is connected with each device under test respectively, the parameter to be measured for detecting each device under test.Three-phase current test system allow while test multiple device under tests, it is cost-effective, improve efficiency.
Description
Technical field
The utility model is related to communication technical field, more particularly to a kind of three-phase current test system.
Background technology
In the prior art, when testing the device under test of low resistance, because the resistance of device under test is relatively low, three phase mains leads to
Cross pressure regulator, current feedback circuit to be typically only capable to be connected with a device under test, the output terminal shortcircuit connection of device under test, and then,
System can test the performance of device under test.
Inventor has found at least there is problems with the prior art, and three phase mains is led to by pressure regulator, current feedback circuit
It can only be often connected with a device under test, so, system can only once test a device under test, and test speed is slow, also, wave
Take human and material resources, thus, cost is higher.
Utility model content
The purpose of the utility model embodiment is to provide a kind of three-phase current test system so that three-phase current is tested
System can test multiple device under tests simultaneously, cost-effective, improve efficiency.
In order to solve the above technical problems, embodiment of the present utility model provides a kind of three-phase current test system, bag
Include：Three phase mains, at least two device under tests, load box and detector；The output end difference of any two-phase in three phase mains
The input of two device under tests is connected, the output end of each device under test connects a load box, and different device under tests connect
Different load boxs are connect, the quantity of load box is more than or equal to the quantity of device under test；Detector connects with each device under test respectively
Connect, the parameter to be measured for detecting each device under test.
In terms of existing technologies, any two-phase in three phase mains can be connected the utility model embodiment respectively
Two device under tests, each device under test can connect a load box.Device under test can adjust every by connecting load box
The electric current of road load-side, so, system can connect multiple device under tests simultaneously.Three-phase current test system also includes detection
Device, detector can detect the parameter to be measured of multiple device under tests by connecting each device under test.So, embodiment party of the present invention
Three-phase current test system in formula can detect multiple device under tests simultaneously by detector, improve the same of detection efficiency
When, can be with cost-effective.
In addition, load box is tunable load case.Load box is adjustable to be conducive to according to actual needs, easily by suitable parameters
Load box access circuit.
In addition, three-phase current test system also includes：First pressure regulator and current feedback circuit, the output end of three phase mains and
The first pressure regulator and current feedback circuit are connected between the input of device under test.So, the voltage that three phase mains is provided can be through
By the first pressure regulator, by the voltage needed for voltage-regulation to device under test.
In addition, load box includes：Collector, comparator and the second pressure regulator；Collector is used for the electric current for gathering load box
And voltage, and comparator is sent to, comparator is adjusted to the second pressure regulator output regulation signal, the second pressure regulator according to Regulate signal
Save output voltage.
In addition, current feedback circuit is three-phase current generator；Each phase power supply accesses three jointly after the first pressure regulator pressure regulation
Phase current generator, the output end of three-phase current generator is respectively connected to each device under test.
In addition, the quantity of device under test is identical with the quantity of load box.
In addition, the quantity of device under test and the quantity of load box are 3.
In addition, three-phase current test system also includes：Human-computer interaction interface, human-computer interaction interface and detector connection.
Brief description of the drawings
Fig. 1 is the structure chart of the three-phase current test system according to first embodiment of the invention；
Fig. 2 is the structure chart of the three-phase current test system according to second embodiment of the invention；
Fig. 3 is the structure chart of the load box in second embodiment of the invention.
Embodiment
It is new to this practicality below in conjunction with accompanying drawing to make the purpose of this utility model, technical scheme and advantage clearer
Each embodiment of type is explained in detail.However, it will be understood by those skilled in the art that each in the utility model
In embodiment, in order that reader more fully understands the application and proposes many ins and outs.But, even if without these skills
Art details and many variations based on following embodiment and modification, can also realize the application technical side claimed
Case.
First embodiment of the present utility model is related to a kind of three-phase current test system, as shown in figure 1, including：Three-phase
Power supply 101, the first pressure regulator 102, three-phase current generator 103, device under test 104, load box 105, detector 106 and people
Machine interactive interface 107.
As shown in figure 1, three-phase current test system includes three device under tests 104 and three load boxs 105.Three-phase electricity
The output end of three-phase can connect the input of three device under tests 104 respectively in source 101, also, the three-phase of three phase mains 101
Output end is connected by the first pressure regulator 102, three-phase current generator 103 with the input of three device under tests 104 respectively, its
In, the first pressure regulator 102 is including first pressure regulator of A phases corresponding with the three-phase of three phase mains 101 1021, B phases first are adjusted respectively
Depressor 1022 and the first pressure regulator of C phases 1023.The output end of each device under test 104 can connect a load box 105, no
Same device under test 104 connects different load boxs 105.Each device under test 104 can with connecting detection device 106, wherein, inspection
The parameter to be measured that device 106 can be used for detecting each device under test 104 is surveyed, the first pressure regulator 102 can be used for real-time according to actual needs
Adjust the voltage in circuit.
In present embodiment, load box 105 is tunable load case.Load box 105 is adjustable to be conducive to according to actual needs, side
Just the load box 105 of suitable resistance is accessed into circuit.
In present embodiment, each phase power supply of three-phase current generator 103 connects jointly after the pressure regulation of the first pressure regulator 102
Enter three-phase current generator 103, the output end of three-phase current generator 103 is respectively connected to each device under test.
In present embodiment, three-phase current test system also includes human-computer interaction interface 107, and human-computer interaction interface 107 can
To be connected respectively with detector 106, three phase mains 101.
In addition, the quantity of load box 105 can also be more than the quantity of device under test 104.
In terms of existing technologies, any two-phase in three phase mains 101 can be distinguished the utility model embodiment
Two device under tests 104 are connected, each device under test 104 can connect a load box 105.Device under test 104 passes through connection
Load box 105, can adjust the electric current of every road load-side, so, and system can connect multiple device under tests 104 simultaneously.Three-phase
Current detecting system also includes detector 106, and detector 106 can detect multiple devices to be measured by connecting each device under test 104
The parameter to be measured of part 104.So, the three-phase current test system in embodiment of the present invention can be by detector 106 simultaneously
Multiple device under tests 104 are detected, can be with cost-effective while detection efficiency is improved.
Second embodiment of the present utility model is related to a kind of three-phase current test system.Second embodiment is real with first
Apply mode roughly the same, be in place of the main distinction：In the first embodiment, three-phase current test system includes three respectively
Device under test and three load boxs, and in the utility model second embodiment, three-phase current test system can be wrapped respectively
Include two device under tests and two load boxs.
As shown in Fig. 2 including：Three phase mains 101, the first pressure regulator 102, three-phase current generator 103, device under test
104th, load box 105, detector 106 and human-computer interaction interface 107.
As shown in Fig. 2 three-phase current test system includes two device under tests 104 and two load boxs 105.Three-phase electricity
The output end of any two-phase in source 101 can connect the input of two device under tests 104 respectively, and three phase mains 101
The first pressure regulator 102 and three-phase current generator 103 can also be connected between the input of output end and device under test 104.Often
The output end of individual device under test 104 can connect a load box 105, and different device under tests 104 connect different load boxs
105.Each device under test 104 can with connecting detection device 106, wherein, detector 106 can be used for detecting each device under test 104
Parameter to be measured, the first pressure regulator 102 can be used for according to actual needs in real time regulation circuit in voltage.
In present embodiment, load box 105 includes collector 201, the pressure regulator 203 of comparator 202 and second, wherein, adopt
Storage 201 is used to gathering the electric current and voltage of load box 105, and is sent to comparator 202, and comparator 202 is to the second pressure regulator
203 output regulation signals, the second pressure regulator 203 can adjust output voltage according to Regulate signal.
In present embodiment, the structure of load box 105 is as shown in Figure 3.Load box 105 can also include three-phase current source
301st, transformer 302, the second pressure regulator 203, contactor 304 and reactor 305.
In addition, in practical application, tunable load case can also be realized using variable resistor, will not enumerate herein.
In present embodiment, each phase power supply of three-phase current generator 103 connects jointly after the pressure regulation of the first pressure regulator 102
Enter three-phase current generator 103, the output end of three-phase current generator 103 is respectively connected to each device under test.
In present embodiment, three-phase current test system also includes human-computer interaction interface 107, and human-computer interaction interface 107 can
To be connected respectively with detector 106, three phase mains 101.
In terms of existing technologies, any two-phase in three phase mains 101 can be distinguished the utility model embodiment
Two device under tests 104 are connected, each device under test 104 can connect a load box 105.Device under test 104 passes through connection
Load box 105, can adjust the electric current of every road load-side, so, and system can connect multiple device under tests 104 simultaneously.Three-phase
Current detecting system also includes detector 106, and detector 106 can detect multiple devices to be measured by connecting each device under test 104
The parameter to be measured of part 104.So, the three-phase current test system in embodiment of the present invention can be by detector 106 simultaneously
Multiple device under tests 104 are detected, can be with cost-effective while detection efficiency is improved.
It is noted that each module involved in present embodiment is logic module, and in actual applications, one
Individual logic unit can be a part for a physical location or a physical location, can also be with multiple physics lists
The combination of member is realized.In addition, will be with not solving this reality in innovative part of the present utility model, present embodiment in order to protrude
Introduced with new proposed technical problem relation less close unit, but this is not intended that in present embodiment and it is not present
Its unit.
It will be understood by those skilled in the art that the respective embodiments described above are to realize specific implementation of the present utility model
Example, and in actual applications, can to it, various changes can be made in the form and details, without departing from spirit of the present utility model
And scope.
Claims (8)
1. a kind of three-phase current test system, it is characterised in that including：Three phase mains, at least two device under tests, load box and
Detector；
The output end of any two-phase in the three phase mains connects the input of two device under tests, each device under test respectively
Output end connect a load box, different device under tests connect different load boxs, and the quantity of the load box is big
In or equal to the device under test quantity；
The detector is connected with each device under test respectively, the parameter to be measured for detecting each device under test.
2. three-phase current test system according to claim 1, it is characterised in that the load box is tunable load case.
3. three-phase current test system according to claim 1, it is characterised in that also include：First pressure regulator and electric current
Generator；
First pressure regulator and the electricity are connected between the input of the output end of the three phase mains and the device under test
Flow-generator.
4. three-phase current test system according to claim 3, it is characterised in that the load box includes：Collector, ratio
Compared with device and the second pressure regulator；The collector is used to gathering the electric current and voltage of the load box, and is sent to the comparator,
The comparator is adjusted according to the Regulate signal and exported to the second pressure regulator output regulation signal, second pressure regulator
Voltage.
5. three-phase current test system according to claim 3, it is characterised in that the current feedback circuit is three-phase current
Generator；Each phase power supply accesses the three-phase current generator, the three-phase current jointly after the first pressure regulator pressure regulation
The output end of generator is respectively connected to each device under test.
6. three-phase current test system according to claim 1, it is characterised in that the quantity of the device under test and described
The quantity of load box is identical.
7. three-phase current test system according to claim 6, it is characterised in that the quantity of the device under test and described
The quantity of load box is 3.
8. three-phase current test system according to claim 1, it is characterised in that also include：Human-computer interaction interface, it is described
Human-computer interaction interface and detector connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720096705.7U CN206431218U (en) | 2017-01-25 | 2017-01-25 | A kind of three-phase current test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720096705.7U CN206431218U (en) | 2017-01-25 | 2017-01-25 | A kind of three-phase current test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206431218U true CN206431218U (en) | 2017-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720096705.7U Active CN206431218U (en) | 2017-01-25 | 2017-01-25 | A kind of three-phase current test system |
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| Country | Link |
|---|---|
| CN (1) | CN206431218U (en) |
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2017
- 2017-01-25 CN CN201720096705.7U patent/CN206431218U/en active Active
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