CN209086298U - A kind of load current analog circuit applied on phase-change switch - Google Patents
A kind of load current analog circuit applied on phase-change switch Download PDFInfo
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- CN209086298U CN209086298U CN201821392464.1U CN201821392464U CN209086298U CN 209086298 U CN209086298 U CN 209086298U CN 201821392464 U CN201821392464 U CN 201821392464U CN 209086298 U CN209086298 U CN 209086298U
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Abstract
The utility model discloses a kind of load current analog circuits applied on phase-change switch, including transformer, resistance R1, slide rheostat VR, terminal J1, the current acquisition end of three-phase imbalance regulating device, transformer includes primary coil T1, secondary coil T2, the both ends of primary coil T1 connect alternating current G, one end of one end connection terminal J1 of secondary coil T2, one end of the other end connection resistance R1 of secondary coil T2, the other end of resistance R1 passes through the other end of slide rheostat VR connection terminal J1, the current acquisition end of terminal J1 connection three-phase imbalance regulating device.The utility model analog goes out desired high current value, provides more reliable experiment for master switch commutation algorithm and phase-change switch switching and tests foundation.
Description
Technical field
The utility model relates to a kind of load current analog circuits applied on phase-change switch.
Background technique
Three-phase imbalance device is to acquire three-phase total current respectively by master switch, if reaching degree of unbalancedness and commutation
Then condition is calculated according to the current data that each phase-change switch is sent back, rationally switching respectively loads on three-phase.It is dispatching from the factory
When test, large current load is difficult to realize, for this purpose, three-phase imbalance load current analog device may be implemented to simulate big electricity
Stream output provides more reliable experiment to master switch commutation algorithm and phase-change switch switching and tests foundation.
Utility model content
The purpose of the utility model is to overcome the deficiencies in existing product, provide a kind of load applied on phase-change switch
Current analog circuit.
In order to achieve the above object, the utility model is achieved through the following technical solutions:
A kind of load current analog circuit applied on phase-change switch, including transformer, resistance R1, slide rheostat
VR, terminal J1, three-phase imbalance regulating device current acquisition end, the transformer includes primary coil T1, secondary coil T2,
The both ends of the primary coil T1 connect alternating current G, one end of one end connection terminal J1 of the secondary coil T2, the secondary
One end of the other end connection resistance R1 of coil T2, the other end of the resistance R1 pass through slide rheostat VR connection terminal J1's
The other end, the current acquisition end of the terminal J1 connection three-phase imbalance regulating device.
The alternating current G is the alternating current of 220V.
Transformer is TRANS1 transformer.
The voltage of grade coil T2 output is 5V.
The beneficial effects of the utility model are as follows: for 220V alternating current by transformer output exchange 5V voltage, VR is sliding
Rheostat, adjusting slide rheostat can be obtained different current values, this electric current is milliampere rank, be connected to three by terminal J1
The mutually current acquisition end of uneven regulating device, can simulate desired high current value, for master switch commutation algorithm and change
Phase switching provides more reliable experiment test foundation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
The technical solution of the utility model is described further with reference to the accompanying drawings of the specification:
As shown in Figure 1, a kind of load current analog circuit applied on phase-change switch, including transformer, resistance R1, cunning
Dynamic rheostat VR, terminal J1, three-phase imbalance regulating device current acquisition end, the transformer includes primary coil T1, secondary
The both ends of grade coil T2, the primary coil T1 connect alternating current G, and the one of one end connection terminal J1 of the secondary coil T2
End, one end of the other end connection resistance R1 of the secondary coil T2, the other end of the resistance R1 pass through slide rheostat VR
The other end of connection terminal J1, the current acquisition end of the terminal J1 connection three-phase imbalance regulating device.
The alternating current G is the alternating current of 220V.
Transformer is TRANS1 transformer.
The voltage of grade coil T2 output is 5V.
For 220V alternating current by transformer output exchange 5V voltage, VR is slide rheostat, adjusts slide rheostat
Different current values is obtained, this electric current is milliampere rank, is adopted by the electric current that terminal J1 is connected to three-phase imbalance regulating device
Collect end, desired high current value can be simulated, provides more reliable reality for master switch commutation algorithm and phase-change switch switching
Test tries foundation.
It should be noted that listed above is only a kind of specific embodiment of the utility model.Obviously, the utility model
Above embodiments are not limited to, also with there are many deformation, in short, those skilled in the art can be from disclosed by the utility model
All deformations that content is directly exported or associated, are considered as the protection scope of the utility model.
Claims (4)
1. a kind of load current analog circuit applied on phase-change switch, which is characterized in that including transformer, resistance R1, cunning
Dynamic rheostat VR, terminal J1, three-phase imbalance regulating device current acquisition end, the transformer includes primary coil T1, secondary
The both ends of grade coil T2, the primary coil T1 connect alternating current G, and the one of one end connection terminal J1 of the secondary coil T2
End, one end of the other end connection resistance R1 of the secondary coil T2, the other end of the resistance R1 pass through slide rheostat VR
The other end of connection terminal J1, the current acquisition end of the terminal J1 connection three-phase imbalance regulating device.
2. a kind of load current analog circuit applied on phase-change switch according to claim 1, which is characterized in that described
Alternating current G is the alternating current of 220V.
3. a kind of load current analog circuit applied on phase-change switch according to claim 1, which is characterized in that described
Transformer is TRANS1 transformer.
4. a kind of load current analog circuit applied on phase-change switch according to claim 1, which is characterized in that described
The voltage of secondary coil T2 output is 5V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821392464.1U CN209086298U (en) | 2018-08-28 | 2018-08-28 | A kind of load current analog circuit applied on phase-change switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821392464.1U CN209086298U (en) | 2018-08-28 | 2018-08-28 | A kind of load current analog circuit applied on phase-change switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209086298U true CN209086298U (en) | 2019-07-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821392464.1U Active CN209086298U (en) | 2018-08-28 | 2018-08-28 | A kind of load current analog circuit applied on phase-change switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209086298U (en) |
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2018
- 2018-08-28 CN CN201821392464.1U patent/CN209086298U/en active Active
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